2001 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
Features
Constant Voltage & Constant Current Control
Wide Operating Range of 2.5V ~ 16V
Low-Side Source Return Current Sensing
Externally Adjustable Charging Current Control
Charging Current Monitoring
Precision LDO Regulator Drive Ouptut (Adj)
(Only FAN7564)
Error signals of Output Dropout (LDO)
(Only FAN7564)
Current Limit (LDO)
( FAN7564 Only)
Description
The FAN7563/FAN7564 is designed for Lithium-ion battery
charger. This controls charging current and voltage of Lith-
ium - ion battery as constant current and constant voltage
control IC and can be used for stand alone charger
(FAN7563) and micom interface charger(FAN7564). In
addition LDO regulator driving output which is integrated
within FAN7564 enables to offer accurate reference voltage
to power supply of micro controller, therefore, it features
increasing stability and efficiency of charger set as well as
minimizing external components of the set. Additionally,
FAN7563/FAN7564 provide the protection functions like
error flag, short circuit protection(LDO), and charging
current control disable.
8-SOP
14-SOP
1
1
Internal Block Diagram
LDODRV
VCC
VSEN
IREF
MONIT
NC
ERROR
OUTPUT
ISEN
CS
GND
CHA-
FB
UVLO
Reference
Bias
LDO
Drive
Reference
Internal
Bias
Vref(1.244V)
5
1
2
3
4
5
6
7
8
9
10
11(5)
12(6)
13(7)
14(8)
NC
8SOP
14SOP
LDODRV
VCC
VSEN
IREF
MONIT
NC
ERROR
OUTPUT
ISEN
CS
GND
CHA-
FB
UVLO
Reference
Bias
LDO
Drive
Reference
Internal
Bias
Vref(1.244V)
5
5
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11(5)
12(6)
13(7)
14(8)
NC
8SOP
14SOP
20k
FAN7563/FAN7564
Lithium-Ion Charger Controller
FAN7563/FAN7564
2
Pin Assignments
Pin Definitions
Pin Number
Pin Name
Pin Function Descrition
1
OUTPUT
Output pin for charging control. An external photocoupler is drived from
the output for constant voltage and constant current charging control.
2
I
SEN
Reference input for current amplifier.
3
CS
Charging current sensing input . It is connected to a sense resistor
(system ground)
4
GND
Ground
5
MONIT
Charging current monitoring output. This pin is connected to a micro
controller and detects the amplified voltge derived from CS pin.
6
I
REF
Reference current control input. The Amplifier reference current is
controlled according to the resistor which is connected to the pin I
REF
.
7
V
SEN
Voltage sensing input for constant battery voltage control. It is normally
connected to the battery charger output through a resistor divider.
8
V
CC
Power supply input. The typical operating voltage range is 2.5V to 16V.
1
2
3
4
8
7
6
5
F
A
N756
3
OUTPUT
ISEN
CS
GND
V
CC
VSEN
IREF
MONIT
FAN7563/FAN7564
3
Pin Assignments (Continued)
Pin Definitions
(Continued)
Pin Number
Pin Name
Pin Function & Descrition
1
OUTPUT
Output pin for charging control. An external photocoupler is drived
from the output for constant voltage and constant current charging
control.
2
I
SEN
Constant current loop reference Input.
3
CS
Charging current sensing input . It is connected to a sense resistor
(system ground)
4
GND
Ground
6
CHA-
Charging current monitoring feedback input. monitoring output
voltage can be changed by alternating the value of external resistor
which is connected to the pin6, CHA-
7
FB
LDO output voltage sensing input. It is normally connected to the
LDO output through a resistor divider.
8
LDODRV
LDO driving output. This is connected to the base of external TR
(KSA539)
9
ERROR
LDO dropout error flag. This keeps the error signal off until the bias
voltage for micro controller reaches the threshold voltage. Error
signal becomes ON when the voltage reaches 4.8V.
(With hysteresis 60mV)
11
MONIT
Charging current monitoring output. This pin is connected to a micro
controller and detects the amplified voltage derived from CS pin.
12
I
REF
Reference current control input. The Amplifier reference current is
controlled according to the resistor which is connected to the pin
I
REF
.
13
V
SEN
Voltage sensing input for constant Battery voltage control. It is
normally connected to the Battery charger output through a resistor
divider.
14
V
CC
Power supply input. The typical operating voltage range is 2.5V to
16V.
1
2
3
4
14
13
12
5
F
AN7564
OUTPUT
ISEN
CS
GND
V
CC
VSEN
IREF
MONIT
6
7
NC
CHA-
FB
11
10
9
8
NC
ERROR
LDODRV
FAN7563/FAN7564
4
Absolute Maximum Ratings (Ta = 25
C)
Electrical Characteristic (FAN7563)
( Vcc = 6V, Ta= 25
C,for min/max values Ta is the operating juntion temperature range that applies(NOTE 1),
unless otherwise noted.))
NOTE:
1. Tested ambient temperature range for the FAN7563: Tlow = -25
C, Thigh=85
C
2.
Parameter
Symbol
Value
Unit
Supply Voltage
V
CC
2.5 ~ 16
V
Ldodrv Sink Current
Idrv
2
mA
Output Sink Current
I
O
20
mA
Power Dissipation
Pd
0.75
W
Operating Temperature Range
Topr
-25 ~ 85
C
Storage Temperature Range
Tstg
-65 ~ 150
C
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
TOTAL DEVICE
Input Supply Current
I
CC
V
CC
=6V, Iload=1mA, I
O
=0A
-
-
3
mA
REFERENCE SECTION
Reference voltage
Vref
V
CC
=6V,Iload=50mA,Ta=25
C 1.23
1.245
1.26
V
Full Temperature Range
1.22
1.245
1.27
CONTROL PART
UVLO Section
High Threshold Voltage
Vth(H)
-
-
2.5
2.6
V
Low Threshold Voltage
Vth(L)
-
2.3
2.4
-
Hysteresis 2
Vhys2
-
-
0.1
-
VOLTAGE SENSE SECTION
Voltage Sense
Threshold Voltage
Vvsen
V
CC
= 6V, Ta = 25
C
1.23
1.245
1.26
V
Full Temperature Range
1.22
1.245
1.27
Threshold Voltage
Temperature Coefficient
Vvsen/
T
-
-
0.01
-
%/
C
Input Bias Current
Ii
-
-
40
-
nA
Transconductance
gm (V)
-
-
1
-
S
CURRENT SENSE SECTION
Current Sense Threshold voltage
Visen
V
CC
= 6V, Ta=25
C
-190
-200
-210
mV
Full Temperature Range
-
0
-
mV/
C
Transconductance
gm
-
-
1
-
S
Current Reference Voltage
Viref
Rpin12=25K
, Ta=25
C
1.23
1.245
1.26
V
Full Temperature Range
1.22
1.245
1.27
OUTPUT SECTION
Output Sink Current
I
O
-
5
-
-
mA
Output Saturation Voltage
Vsat
I
O
=5mA
-
200
400
mV
S
1
R
----
=
FAN7563/FAN7564
5
Electrical Characteristic (Continued) (FAN7564)
(V
CC
= 6V, Ta= 25
C,for min/max values Ta is the operating juntion temperature range that applies (NOTE 1),
unless otherwise noted.)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
TOTAL DEVICE
Input Supply Current
I
CC
V
CC
=6V, Iload=1mA, I
O
=0A
-
-
3
mA
REFERENCE SECTION
Reference voltage
Vref
V
CC
=6V,Iload=50mA,Ta=25
C 1.23
1.245
1.26
V
Full Temperature Range
1.22
1.245
1.27
REGULATOR PART
EXTERNAL OUTPUT SECTION (NOTE2)
Line Regulation
Vr(Ii)
6V < V
CC
< 15V
-
-
0.5
%max
Load Regulation
Vr(I
O
) 1mA < Iload < 100mA
-
-
0.5
%max
Current Limit
I
CL
V
O
=0V
110
-
-
mA
Output Voltage
V
O
V
CC
=6V, Iload=50mA,
Ta=25
C
4.95
5.0
5.05
V
Full Temperature Range
4.9
5.0
5.1
1mA < Iload < 100mA
Full Temperature Range
4.88
5.0
5.12
INTERNAL DRIVE SECTION
LDODRV Sink Current
Idrv
V
CC
=6V
-
-
2
mA
ERROR COMPARATOR SECTION
Output Low Voltage
V
OL
V
CC
=(V
O
-0.5)V, I
OL
=500
A
-
150
400
mV
High Threshold Voltage
Vth
-
-
4.8
4.9
V
Low Threshold Voltage
Vtl
-
4.64
4.74
-
V
Hysteresis1
Vhys1
-
-
0.1
-
mV
CONTROL PART
UVLO Section
High Threshold Voltage
Vth(H)
-
-
2.5
2.6
V
Low Threshold Voltage
Vth(L)
-
2.3
2.4
-
Hysteresis 2
Vhys1
-
-
60
-
VOLTAGE SENSE SECTION
Voltage Sense
Threshold Voltage
Vvsen
V
CC
= 6V, Ta = 25
C
1.23
1.245
1.26
V
Full Temperature Range
1.22
1.245
1.27
Threshold Voltage
Temperature Coefficient
Vvsen/
T
-
-
0.01
-
%/
C
Input Bias Current
Ii
-
-
40
-
nA
Transconductance
gm (V)
-
-
1
-
S
CURRENT SENSE SECTION
Current Sense Threshold voltage
Visen
V
CC
= 6V, Ta=25
C
-190
-200
-210
mV
Full Temperature Range
-
0
-
mV/
C
Transconductance
gm
-
-
1
-
S
Current Reference Voltage
Viref
Rpin12=25K
, Ta=25
C
1.23
1.245
1.26
V
Full Temperature Range
1.22
1.245
1.27
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