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Электронный компонент: FAN5608DHMPX

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www.fairchildsemi.com
REV. 1.0.3 6/28/04
Features
Two Independent Channels Drive up to Six LEDs per
Channel
Adaptive Output Voltage Drive to Maximize Efficiency
PWM/PFM Mode of Operation of the Boost Circuit
Up to 85% Efficiency
Up to 2
20mA Output
Two Built-in DACs for Independent (Digital) Brightness
Control for Both Channels
LED's Current Can be Duty-Cycle-Modulated between
0 to 20mA
Digital, Analog, and PWM Brightness Control
2.7V to 5V Input Voltage Range
0.5MHz Operating Frequency (8MHz internal clock)
Soft Start
Low Shutdown Current: I
CC
< 1
A
LED Short Circuit Protection
Minimal External Components Needed
Available in space saving 8-lead and 12-lead MLP
Packages.
Applications
Cell Phones
Handheld Computers
PDAs, DSCs, MP3 Players
Keyboard Backlights
LED Displays
Description
The FAN5608 LED driver generates regulated output cur-
rents from a battery with input voltage varying between 2.7V
to 5V. An internal NMOS switch drives an external inductor,
and a Schottky diode delivers the inductor's stored energy to
the load. Proprietary internal circuitry continuously monitors
the currrent on both strings and automatically adjusts the
generated output DC voltage to the lowest minimum value
required by the LEDs string with the highest summarized
forward voltage. This adaptive nature of the FAN5608
ensures operation at the highest possible efficiency. Soft start
circuitry prevents excessive current drawn from the supply
during power on. Any number of LEDs can be connected in
series as long as the summed forward voltages do not exceed
the specified operating output voltage range. Although it is
not required to have an equal number of LEDs connected in
series within each branch, the highest efficiency and best
current regulation is always achieved when an equal number
of LEDs are serially connected.
In the FAN5608 device, two internal two-bit D/A converters
provide independent programmability of each output channel
current. Analog programming of the output current is
also possible in the FAN5608. To do this, ground the "B"
pins and connect a resistor between the "A" pins and a
fixed supply voltage. The output current can then be
programmed to any desired value within its specified range.
The FAN5608DMPX/FAN5608MPX version uses a single
FAN5608
Serial/Parallel LED Driver with Current-Regulated,
Step-Up DC/DC Converter
Typical Application
Digital Brightness Control
NN
2.7V to 5V
C
IN
L = 4.7
H
V
IN
B1
A1
A2
IND
IND
GND
B2
CH1
CH2
V
OUT
F
A
N5608DHMPX
DAC Input For CH1
DAC Input For CH2
4.7
F
NC
V
OUT
2.7V to 5V
L = 4.7
H
V
IN
B1
A1
A2
IND
IND
GND
B2
CH1
CH2
V
OUT
F
AN5608HMPX
DAC Input For CH1
DAC Input For CH2
4.7
F
NC
NC
C
IN
4X4mm MLP-12 Package
with internal Schottky diode
Order Code: FAN5608DHMPX
4X4mm MLP-12 Package
with external Schottky diode
Order Code: FAN5608HMPX
PRODUCT SPECIFICATION
FAN5608
2
REV. 1.0.3 6/28/04
external resistor to set the current, and to turn the device ON
and OFF. The FAN5608DMPX/FAN5608MPX is available
in an 8-lead MLP package with or without an internal Schot-
tky diode. The FAN5608DHMPX is available in a 12-lead
MLP package with an internal Schottky diode.
Typical Application
(Continued)
3X3mm MLP-8 Package
with internal Schottky diode
Order Code: FAN5608DMPX
3X3mm MLP-8 Package
with external Schottky diode
Order Code: FAN5608MPX
IND
R
R
V
IN
V
EXTERNAL
V
OUT
IND
A1
A2
GND
CH2
CH1
2.7V TO 5V
L = 4.7
H
C
IN
FAN5608DMPX
4.7
F
IND
R
R
V
IN
V
EXTERNAL
NC
V
OUT
IND
A1
A2
GND
CH2
CH1
2.7V TO 5V
L = 4.7
H
FAN5608MPX
4.7
F
C
IN
Analog Brightness Control
Definition of Terms
Output Current Accuracy:
reflects the difference between the measured value of the output current (LED) and
programmed value of this current
.
Current Matching:
refers to the absolute value of difference in current between the two LED branches.
Efficiency:
is expressed as a ratio between the electrical power into the LEDs and the total power consumed from the input
power supply.
Although this definition leads to a lower value than the boost converter efficiency, it more accurately reflects better system per-
formance, from the user's point-of-view.
Output Current Accuracy (%)
I
OUT
measured
I
OUT
programmed
(
) 100
I
OUT
programmed
------------------------------------------------------------------------------------------------------------
=
Current Matching (%)
I
LED
branch 1
I
LED
branch 2
(
) 100
I
LED
branch 1
I
LED
branch 2
+
(
) 2
/
-----------------------------------------------------------------------------------------------
=
Efficiency (%)
V
LED
branch 1
I
LED
branch 1
V
LED
branch 1
I
LED
branch 1
+
(
) 100
V
IN
I
IN
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
=
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
3
Pin Assignments
Pin Descriptions
TOP-VIEW
FAN5608DMPX/FAN5608MPX
3x3mm 8-Lead MLP
(Internal Schottky Diode)
3x3mm 8-Lead MLP
(External Schottky Diode)
V
IN
A2
CH2
IND
NC
A1
CH1
GND
1
2
3
4
5
6
7
8
4x4mm 12-Lead MLP(QUAD)
(Internal Schottky Diode)
4x4mm 12-Lead MLP(QUAD)
(External Schottky Diode)
FAN5608DHMPX/FAN5608HMPX
IND
V
IN
B1
A1
A2
V
OUT
B2
CH1
CH2
GND
NC
IND
1
2
3
4
5
6
7
8
9
10
12
11
IND
V
IN
B1
A1
A2
NC
B2
CH1
CH2
GND
NC
IND
1
2
3
4
5
6
7
8
9
10
12
11
V
IN
A2
CH2
IND
V
OUT
A1
CH1
GND
1
2
3
4
5
6
7
8
Pin No.
Pin Name
Pin Function Description
FAN5608DHMPX FAN5608HMPX
FAN5608DMPX
FAN5608MPX
1
GND
GND
GND
GND
Ground
V
IN
V
IN
Input Voltage
2
CH1
CH1
1st LED Cathode
A2
A2
DAC A2
3
B1
B1
DAC B1
CH2
CH2
2nd LED Cathode
4
A1
A1
DAC A1
IND
IND
Inductor
5
V
IN
V
IN
Input Voltage
V
OUT
Output LEDs Anode
NC
No Connection
6
A2
A2
DAC A2
GND
GND
Ground
7
B2
B2
DAC B2
CH1
CH1
1st LED Cathode
8
CH2
CH2
2nd LED Cathode
A1
A1
DAC A1
9
IND
IND
SD Anode
10
IND
IND
Inductor
11
V
OUT
Output LEDs Anode
NC
No Connection
12
NC
NC
No Connection
PRODUCT SPECIFICATION
FAN5608
4
REV. 1.0.3 6/28/04
Absolute Maximum Ratings
DC Electrical Characteristics
Recommended Operating Conditions
Notes:
1. Using Mil Std. 883E, method 3015.7(Human Body Model) and EIA/JESD22C101-A (Charge Device Model).
2. Avoid positive polarity ESD stress at the cathode of the internal Schottky diode.
Parameter
Min
Typ
Max
Unit
V
IN
, A, B Voltage to GND
-0.3
6
V
V
OUT
to GND
-0.3
24
V
CH1, CH2 Voltage to GND
8
V
Any LED Short Circuit Duration (Anode to Cathode)
Indefinite
Lead Soldering Temperature (10 seconds)
300
C
Thermal Resistance
jc
8
C/W
Operating Junction Temperature Range
150
C
Storage Temperature Range
-55
150
C
Electrostatic Discharge (ESD) Protection (Note 1, 2)
HBM
4
kV
CDM
1
(V
IN
= 2.7V to 5V, T
A
= 25C, unless otherwise noted. Boldface values indicate specifications over the ambient
operating temperature.)
Parameter
Conditions
Min.
Typ.
Max.
Units
Output Current Accuracy
A = HIGH,
B = HIGH
0.9
I
NOM
I
NOM
= 20 1.1
I
NOM
mA
Channel to Channel Current Matching
A = HIGH,
B = HIGH
3
%
Efficiency (AVG)
V
IN
> 3.0V
80
%
Switching Frequency
0.5
MHz
Multiplication Ratio
FAN5608DMPX/
FAN5608MPX
900
1000
1100
FAN5608DHMPX/
FAN5608HMPX
850
1000
1150
Supply Current in OFF mode
V
A
= V
B
= 0V
0.1
A
Input A1, A2 Threshold
Digital
Mode
High
V
IN
-0.7
V
IN
V
Low
0
0.6
Analog Mode
1.2
Input B Threshold
Digital Mode
High
0.6
V
IN
V
IN
V
Low
0
0.3
V
IN
Input A1, A2 Current
Digital Mode
V
A
= V
IN
50
60
A
V
A
= 0
0.1
A
Input B1, B2 Current
Digital Mode
0.1
A
Parameter
Min
Typ
Max
Unit
Input Voltage Range
2.7
5
V
Operating Ambient Temperature Range
-40
25
85
C
Output Voltage Range
V
IN
18
V
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
5
Block Diagram
COIL DRIVER
DBB
START-UP
POWER GOOD
LINEAR REGULATOR
LINEAR REGULATOR
OSC
W_OR
REF
REF CH1
REF CH2
DAC1
DAC2
BG
V
OUT
V
IN
GND
B1
A1
CH1
IND
CH2
B2
A2
IND
Note: In the 8-pin version (analog version only), pins B1 and B2 are omitted.
Circuit Description
When the input voltage is connected to V
IN
pin, the system is
turned on, the bandgap reference acquires its nominal volt-
age and the soft-start cycle begins. Once "power good" is
achieved (0.5mA in the diodes), the soft-start cycle stops and
the boost voltage increases to generate the desired current
selected by the input control pins. If the second channel is
not selected, its output will go high to about V
IN
, and the
diodes are turned off.
The FAN5608 DC/DC converter automatically adjusts its
internal duty cycle to achieve high efficiency. It provides
tightly regulated output currents for the LEDs. An internal
circuit determines which LED string requires the highest
voltage in order to sustain the pre-set current levels, and
adjusts the boost regulator accordingly.
To maintain the regulated current at the selected value, the
difference in the number of LEDs between branches should
not exceed one. If only one branch is used, another branch
should be disabled, connecting the corresponding DAC
inputs to low. If the output external capacitor is shorted, the
Schottky diode can be damaged, therefore such a condition
should be avoided.
LED Brightness Control
The control inputs are A1, B1 for CH1 and A2, B2 for CH2.
B1 and B2 are digital inputs, thus they require LOW (GND)
and HIGH (V
CC
) control signals. In analog mode, A1 and A2
are connected to an external stable voltage source via an
external resistor, and B1 and B2 inputs are connected to
ground. The current flowing through the resistor is scaled by
a factor of approximately 1000.
PRODUCT SPECIFICATION
FAN5608
6
REV. 1.0.3 6/28/04
Digital Control
The FAN5608's digital decoder allows selection of the fol-
lowing modes of operation: OFF, 5mA, 10mA, 20mA per
branch.
Analog Control
Inputs A1 and A2 are used to control the LED currents.
Inputs B1 and B2 should be connected to GND (logic level
"0"). An external resistor (R) is connected from A1 and/or
A2 to a stable voltage source (V
External
) to control the LED
current, I
LED
. The I
LED
can be determined using the formula
and the graph below:
Where V
Ref
= 1.22V, V
Ref
< V
External
< (V
IN
0.7V)
PWM Control in Digital Mode
The logic level HIGH, VH and logic level LOW, VL of the
PWM signal should be:
(V
IN
0.7V) < VH < V
IN
and 0 < VL < 0.6V
The frequency of the PWM signal should be within 50Hz to
1kHz range; it can go up to 30kHz at any input if the other
input is kept HIGH. In the case of FAN5608MPX and
FAN5608DMPX, the B1 and B2 inputs are internally con-
nected to GND and the PWM signal can be applied to A1
and A2 inputs only. Consequently, the maximum LED
current, for 100% duty cycle, is 5mA on each channel.
PWM Control in Analog Mode
The logic level HIGH, VH and logic level LOW, VL of the
PWM signal should be:
V
Ref
< VH < (V
IN
0.7V) and 0 < VL < 0.6V
The frequency of the PWM signal should be within 50Hz
to 1kHz range. The VH sets the maximum LED current
while the duty cycle sets the average current between 0 and
I
LEDmax
.
If the analog inputs A1 and/or A2 are driven in digital mode
by an open drain output, it is important to choose the appro-
priate value of the pull-up resistor. Its resistance should be
low enough to ensure less than 0.7V dropout, hence V
A
>
(V
IN
0.7V) as required for HIGH logic level:
Open-Circuit Protection
A built-in over voltage protection circuit prevents the device
from being damaged when it is powered up with no load.
This circuit reduces the boost converter duty cycle, to a
minimum thus limiting the output voltage to a safe value
when no load condition is detected. If one of the two enable
branches is accidentally disconnected, the converter contin-
ues the operation, however, the current in the remaining
branch is no longer regulated and the actual branch current
will be determined by the input voltage, the inductor value
and the switching frequency.
However, the FAN5608 can be damaged when a full load
(more than six LEDs, driven by 20mA) is suddenly discon-
nected from V
OUT
. To protect the FAN5608 against this
unlikely event, an external 24V Zener diode can be con-
nected between V
OUT
and GND.
Shutdown Mode
Each branch can be independently disabled by applying
LOW logic level voltage to the A and B inputs. When both
branches are disabled, the FAN5608 enters Shutdown mode
and the supply current is reduced to less than 1
A.
A
0
1
0
1
B
0
0
1
1
I
LED
OFF
5mA
10mA
20mA
I
LED
V
External
V
Ref
R
-----------------------------------------
Multiplication Ratio
=
0
5
10
15
20
25
1.25
1.5
1.75
2
2.25
2.5
2.75
3
3.25
3.5
V
External
(V)
I
LED
(mA)
R=10Kohm
R=100kohm
R
pull
up
700mV
60
A
------------------
<
11.66k
=
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
7
PWM Control
1. A is PWM Controlled, B is Low. I
LED
(Average) =
x 5mA, where
is Duty Cycle. (Note 3)
2. A is High and B is PWM. I
LED
(Average) = 5mA +
x 15mA, where
is Duty Cycle. (Note 4)
3. A and B are PWM. I
LED
(Average) =
x 20mA, where
is Duty Cycle. (Note 5)
Notes:
3. Proportionally select the duty cycle to achieve a typical LED current between 1mA to 4mA.
4. Maximum PWM frequency can be 30KHz.
5. Proportionally select the duty cycle to achieve a typical LED current between 1mA and 19mA.
1KHz
ss
ss
ss
30%
Duty Cycle
1KHz
70%
Duty Cycle
A Input (PWM)
B Input (0)
ss
OFF
ILED
0mA
I
LED
(Average) = 0.3 x 5mA = 1.5mA
I
LED
(Average) = 0.7 x 5mA = 3.5mA
B Input (PWM)
1KHz
1KHz
ss
ss
ss
ss
30%
Duty Cycle
70%
Duty Cycle
A Input
ss
OFF
ILED
0mA
I
LED
(Average) = 0.7 x 20mA + 0.3 x 5mA = 15.5mA
I
LED
(Average) = 0.3 x 20mA + 0.7 x 5mA = 9.5mA
B Input (PWM)
A Input (PWM)
ss
1KHz
1KHz
ss
ss
ss
ss
ss
30%
Duty Cycle
1KHz
30%
Duty Cycle
70%
Duty Cycle
1KHz
70%
Duty Cycle
ss
0mA
OFF
I
LED
(Average) = 0.3 x 20mA = 6mA
I
LED
(Average) = 0.7 x 20mA = 14mA
ILED
PRODUCT SPECIFICATION
FAN5608
8
REV. 1.0.3 6/28/04
Application Information
Inductor Selection
The inductor is one of the main components required by the
boost converter to store energy. The amount of energy stored
in the inductor and transferred to the load is controlled by the
regulator using PWM and pulse skipping techniques. In most
cases the FAN5608 operates the inductor in discontinuous
conduction mode.
To ensure proper operation of the current regulator over the
entire range of conditions, select the inductor based on the
maximum required power (P
OUT
) and the minimum input
voltage (V
IN
).
where units of L, V
IN
, and P
OUT
are in
H, Volt, and Watt,
respectively and F = 0.4 is a factor depending upon the
FAN5608 architecture.
The above relation is applicable up to P
OUT
= 0.6W and
L = 4.3
, or greater. At lower inductor values the effi-
ciency decreases due to the resistive loss in the switching
Power FET. Using L = 4.3
and increasing the load to 12
LED x 20mA (P
OUT
= 800mW) requires V
IN
> 3.5V to
maintain a constant 20mA current through LEDs. The induc-
tor L = 4.3
H ensures proper operation for 2 x 4 white LEDs
with 20mA at 3.5V for V
IN
> 2.8V.
For any lighter load or higher V
IN
, the inductance can be
increased to improve the system efficiency. Application
examples are given in Figure 1 through Figure 4.
The peak current in the inductor is:
which gives the maximum rated current for the inductor. For
L = 4.3
H, T
ON_Max
= 1.25
S and V
IN_Max
= 4.2V, the
inductor saturation current should be at least 1A.
Capacitor Selection
Low ESR capacitors should be used to minimize the input
and output ripple voltage. Use of C
IN
= 4.7
F/6.3V and
C
OUT
= 4.7
F/25V type X5R/X7R multi layer ceramic
capacitor is recommended.
A larger value input capacitor placed as close as possible to
FAN5608 may be needed to reduce the input voltage ripple
in noise sensitive applications. An additional LC filter
between the battery and the FAN5608 input can help to
further reduce the battery ripple to the level required by a
particular application.
Schottky Diode Selection
The FAN5608HMPX and FAN56508MPX require the use of
an external Schottky diode. This diode should be rated at
200mA to 500mA average rectified current and 20V
maximum repetitive reverse voltage.
The MBR0520L (Fairchild) Schottky diode is
recommended.
Driving Higher Current LEDs
To increase the LED current range to 50mA, the CH1 and
CH2 outputs may be connected, as shown below:
L
V
IN
(
)
2
F
P
OUT
--------------------------
<
I
T
ON_Max
V
IN_Max
L
-------------------------------------------------
=
Analog Brightness Control
A
1
V
IN
IND
IND
GND
CH1
C
IN
V
EXTERNAL
L = 4.7
H
4.7
F
2.7V to 5.5V
FAN5608DMPX CH2
A
2
Digital Brightness Control
A
1
B
1
B
2
IND
IND
GND
CH1
C
IN
DAC Inputs
L = 4.7
H
4.7
F
2.7V to 5.5V
FAN5608DHMPX CH2
A
2
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
9
The current feeding the string of LEDs is the sum of the cur-
rents programmed for each branch in digital or analog mode.
Using all four inputs in digital mode, the LED current can be
programmed within the 0 to 40 mA range, according to the
following table :
PCB Layout Consideration
The FAN5608 is available in both a single Die Attach Pad
(DAP) and a dual DAP package. In the single DAP package,
DAP is connected to GND. In the dual DAP package, one
DAP is connected to GND and another to V
OUT
, therefore it
is not necessary to provide any external connection to the
DAPs. Since the internal power dissipation is low, both the
3x3mm and 4x4mm MLP packages are capable of dissipat-
ing maximum power, without providing any PCB land pat-
tern. When viewing the bottom of the package of a single
DAP device, a single exposed metal island can be seen; when
viewing the bottom of the package of a dual DAP device,
two electrically isolated exposed metal islands can be seen.
Input A1 Input B1 Input A2 Input B2 I
LED
(mA)
0
0
0
0
0
1
0
0
0
5
0
0
1
0
5
0
1
0
0
10
0
0
0
1
10
1
0
1
0
10
1
0
0
1
15
0
1
1
0
15
0
1
0
1
20
1
1
0
0
20
0
0
1
1
20
1
1
1
0
25
1
0
1
1
25
1
1
0
1
30
0
1
1
1
30
1
1
1
1
40
PRODUCT SPECIFICATION
FAN5608
10
REV. 1.0.3 6/28/04
Application Examples
1. Driver For Four White LEDs
2. Driver For Six White LEDs
3. Driver For Eight White LEDs
Figure 1
NN
2.7V to 5V
L = 6.8
H
V
IN
B1
A1
A2
IND
IND
GND
B2
CH1
CH2
V
OUT
F
AN5608DHMPX
DAC Input For CH1
DAC Input For CH2
4.7
F
NC
V
OUT
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.70
0.75
0.80
0.85
ILED = 20mA
ILED = 10mA
Input Voltage (V)
Efficiency vs Input Voltage
Four LEDs
Efficiency vs Input Voltage
Input Voltage (V)
NN
2.7V to 5V
L = 6.8
H
V
IN
B1
A1
A2
IND
IND
GND
B2
CH1
CH2
V
OUT
F
AN5608DHMPX
DAC Input For CH1
DAC Input For CH2
4.7
F
NC
V
OUT
Figure 2
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.60
0.65
0.70
0.75
0.80
0.85
0.90
Input Voltage (V)
Eff
ici
e
nc
y
Six LEDs
Efficiency vs Input Voltage
ILED = 10mA
ILED = 20mA
Figure 3
Input Voltage (V)
Eff
ici
e
nc
y
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.60
0.65
0.70
0.75
0.80
0.85
0.90
Eight LEDs
Efficiency vs Input Voltage
ILED = 10mA
ILED = 20mA
NN
2.7V to 5V
L =4.7
H
V
IN
B1
A1
A2
IND
IND
GND
B2
CH1
CH2
V
OUT
F
AN5608DHMPX
DAC Input For CH1
DAC Input For CH2
4.7
F
NC
V
OUT
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
11
4. Driver For 12 White LEDs
Note:
Refer to the Application Information, if a higher load current compliance rating is required
Typical Performance Characteristics
T
A
= 25
C, C
IN
= C
OUT
= 4.7F, L = 4.7H, unless otherwise noted.
NN
2.7V to 5V
L = 4.7
H
V
IN
B1
A1
A2
IND
IND
GND
B2
CH1
CH2
V
OUT
F
A
N5608DHMPX
DAC Input For CH1
DAC Input For CH2
4.7
F
NC
V
OUT
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.50
0.55
0.60
0.65
0.70
0.75
0.80
Twelve LEDs
Efficiency vs Input Voltage
Input Voltage (V)
Efficie
ncy
ILED = 20mA
ILED = 10mA
Figure 4
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.035
0.040
0.045
0.050
0.055
0.060
0.065
Shutdown Current vs Input Voltage
Shutdo
wn Cur
rent (
A)
Input Voltage (V)
PRODUCT SPECIFICATION
FAN5608
12
REV. 1.0.3 6/28/04
T
A
= 25
C, C
IN
= C
OUT
= 4.7F, L = 4.7H, unless otherwise noted.
0
2
4
6
8
10
12
14
16
18
20
0.65
0.70
0.75
0.80
0.85
0.90
L = 10
H
L = 15
H
L = 22
H
LED Current (mA)
2X2 LEDs type QTPL670CiW
Efficiency vs LED Current
C
IN
= 47
F, C
OUT
= 4.7
F
V
IN
= 3.6V
Efficiency
2.5
3.0
3.5
4.0
4.5
5.0
5.5
4.6
4.8
5.0
5.2
5.4
8.5
9.0
9.5
10.0
10.5
15
16
17
18
19
20
A=1, B=0 Scale1
A=0, B=1 Scale2
A=1, B=1 Scale3
Regulated LED Current vs Input Voltage
Input Voltage (V)
LED Current (mA)
Scale2
LED Current (mA)
Scale3
LED Current (mA)
Scale1
PRODUCT SPECIFICATION
FAN5608
13
REV. 1.0.3 6/28/04
Mechanical Dimensions
4x4mm 12-Lead MLP (Internal Schottky Diode)
4.0
2X
0.15 C
2X
0.15
0.10 C
0.08
0.05
0.00
0.75
0.35
0.80
0.80
PIN #1 IDENT
NOTES:
A. CONFORMS TO JEDEC REGISTRATION MO-220,
VARIATION WGGB, DATED 08/2002
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994
0.25~0.35
1.60
(0.20)
2.51 MAX
1.19
4
12
10
1.30
0.10
C A B
M
2.35 MAX
3
1
6
7
9
0.81
0.45
0.80 MAX
SEATING
PLANE
C
C
C
4.0
A
4.20
4.20
3.00
3.00
2.51
12
1
2
9
7
4
6
(0.60)
GND
V
OUT
(0.60)
0.45
2.35
1.30
1.19
0.81
0.80 TYP
RECOMMENDED LAND PATTERN
TOP VIEW
SIDE VIEW
BOTTOM VIEW
0.42 TYP
10
B
0.05
M
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
14
Mechanical Dimensions
4x4mm 12-Lead MLP (External Schottky Diode)
4.0
2X
0.15 C
2X
0.15
0.10 C
0.08
0.05
0.00
0.75
0.35
0.80
0.80
PIN #1 IDENT
NOTES:
A. CONFORMS TO JEDEC REGISTRATION MO-220,
VARIATION WGGB, DATED 08/2002
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994
0.25~0.35
1.60
(0.20)
2.51 MAX
1.19
4
12
10
1.30
0.10
C A B
M
2.35 MAX
3
1
6
7
9
0.81
0.45
0.80 MAX
SEATING
PLANE
C
C
C
4.0
A
4.20
4.20
3.00
3.00
2.51
12
1
3
9
7
4
6
(0.60)
(0.60)
0.45
2.35
1.30
1.19
0.81
0.80 TYP
RECOMMENDED LAND PATTERN
TOP VIEW
SIDE VIEW
BOTTOM VIEW
0.42 TYP
10
B
0.05
M
PRODUCT SPECIFICATION
FAN5608
15
REV. 1.0.3 6/28/04
Mechanical Dimensions
3x3mm 8-Lead MLP (Internal Schottky Diode)
2X
0.15 C
2X
3.0
3.0
0.8 MAX
2.54 MAX
1.40 MAX
1.18
0.65
1.95
1.37
1.26
0.76
A
B
0.15 C
C
TOP VIEW
RECOMMENDED LAND PATTERN
2.54
3.30
1.99
1.40
(0.65)
(0.20)
0.65 TYP
0.42 MAX
1
1
4
4
8
5
5
8
1.18
1.37
1.27
0.76
0.10 C
0.08 C
SIDE VIEW
0.05
0.00
SEATING
PLANE
BOTTOM VIEW
0.25~0.35
0.10
C A B
M
0.05
M
PIN #1 IDENT
0.45
0.43
NOTES:
A. CONFORMS TO JEDEC REGISTRATION MO-229,
VARIATION VEEC, DATED 11/2001
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994
GND
V
OUT
FAN5608
PRODUCT SPECIFICATION
REV. 1.0.3 6/28/04
16
Mechanical Dimensions
3x3mm 8-Lead MLP (External Schottky Diode)
2X
0.15 C
2X
0.15 C
C
3.0
3.0
A
B
TOP VIEW
2.37
3.30
1.99
1.42
(0.65)
(0.20)
0.65 TYP
0.47 TYP
1
1
4
4
5
8
RECOMMENDED LAND PATTERN
0.10 C
0.08 C
1.0 MAX
0.05
0.00
SEATING
PLANE
SIDE VIEW
2.25
MAX
0.45
0.20
1.30 MAX.
0.65
1.95
8
5
BOTTOM VIEW
0.25~0.35
0.10
C A B
M
0.05
M
NOTES:
A. CONFORMS TO JEDEC REGISTRATION MO-229,
VARIATION VEEC, DATED 11/2001
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994
PRODUCT SPECIFICATION
FAN5608
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
6/28/04 0.0m 000
Stock#DS30005508
2003 Fairchild Semiconductor Corporation
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Ordering Information
Product Number
Package Type
Schottky Diode
Order Code
FAN5608
12-Lead MLP(4x4mm)
Internal
FAN5608DHMPX
External
FAN5608HMPX
8-Lead MLP(3x3mm)
Internal
FAN5608DMPX
External
FAN5608MPX