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Электронный компонент: STP08CL596MTR

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February 2005
I
LOW VOLTAGE POWER SUPPLY DOWN TO
3V
I
8 CONSTANT CURRENT OUTPUT
CHANNELS
I
ADJUSTABLE OUTPUT CURRENT
THROUGH EXTERNAL RESISTOR
I
SERIAL DATA IN/PARALLEL DATA OUT
I
SERIAL OUT CHANGES STATE ON THE
FAILING EDGES OF CLOCK
I
3.3V MICRO DRIVER-ABLE
I
OUTPUT CURRENT: 15-90 mA
I
25 MHz CLOCK FREQ.
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AVAILABLE IN HIGH THERMAL EFFICIENCY
TSSOP EXPOSED PAD
DESCRIPTION
The STP8CL596 is a monolithic, medium-voltage,
low current power 8-bit shift register designed for
LED panel display.
The STP8CL596 contains a 8-bit serial-in,
parallel-out shift register that feeds a 8-bitD-type
storage register. In the output stage, sixteen
regulated current sources were designed to
provide 15-90mA constant current to drive the
LEDs.
Compared with the STPIC6C595, the device
provides great flexibility and improved
performance in LED panel system design.
Trough an external resistor, users may adjust the
STP8CL596 output current, controlling in this way
the light intensity of LEDs.
The STP8CL596 guarantees 16V output driving
capability, allowing users to connect more LEDs in
series. The high clock frequency, 25 MHz, also
satisfies the system requirement of high volume
data transmission. The 3.3V of voltage supply is
well useful for applications that interface any micro
from 3.3V to 5.5V. Compared with a standard
TSSOP package, the TSSOP exposed pad
increases heat dissipation capability by a 2.5
factor.
Table 1: Order Codes
Part Number
Temp. Range
Package
Comments
STP08CL596B1
-40C to 125C
DIP-16
25 part per tube
STP08CL596M
-40C to 125C
SO-16 (Tube)
50 parts per tube
STP08CL596MTR
-40C to 125C
SO-16 (Tape & Reel)
1000 parts per reel
STP08CL596TTR
-40C to 125C
TSSOP16 (Tape & Reel)
2500 parts per reel
STP08CL596
LOW VOLTAGE 8-BIT CONSTANT
CURRENT LED SINK DRIVER
SO-16
DIP-16
TSSOP16
Rev. 8
STP08CL596
2/16
Table 2: Current Accuracy
Figure 1: Pin Connection
Table 3: Pin Description
Table 4: Absolute Maximum Ratings
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
Output Voltage
Current accuracy
Output Current
Between bits
Between ICs
0.7V
3%
10%
15 to 90 mA
PIN N
Symbol
Name and Function
1
GND
Ground Terminal
2
SDI
Serial data input terminal
3
CLK
Clock input terminal
4
/LE
Latch input terminal
5-12
OUT 0-7
Output terminal
13
/OE
Output enable input terminal (active low)
14
SDO
Serial data out terminal
15
R-EXT
Constant Current programming
16
V
DD
5V Supply voltage terminal
Symbol
Parameter
Value
Unit
V
DD
Supply Voltage
0 to 7
V
V
O
Output Voltage
-0.5 to 16
V
I
O
Output Current
90
mA
V
I
Input Voltage
-0.4 to V
DD
+0.4
V
I
GND
GND Terminal Current
720
mA
f
CLK
Clock Frequency
25
MHz
T
OPR
Operating Temperature Range
-40 to +125
C
T
STG
Storage Temperature Range
-65 to +150
C
STP08CL596
3/16
Table 5: Thermal Data
Table 6: Recommended Operating Conditions
Table 7: Electrical Characteristics (V
DD
=3V, T
= 25C, unless otherwise specified.)
Symbol
Parameter
DIP-16
SO-16
TSSOP16
Unit
R
thj-amb
Thermal Resistance Junction-ambient
90
125
140
C/W
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Supply Voltage
3.0
3.3
3.6
V
V
O
Output Voltage
16.0
V
I
O
Output Current
OUTn
15
120
mA
I
OH
Output Current
SERIAL-OUT
+1
mA
I
OL
Output Current
SERIAL-OUT
-1
mA
V
IH
Input Voltage
0.7V
DD
V
DD
+0.3
V
V
IL
Input Voltage
-0.3
0.3V
DD
V
t
wLAT
/LE Pulse Width
V
DD
= 3.0 to 3.6V
20
ns
t
wCLK
CLK Pulse Width
20
ns
t
wEN
/OE Pulse Width
400
ns
t
SETUP(D)
Setup Time for DATA
20
ns
t
HOLD(D)
Hold Time for DATA
15
ns
t
SETUP(L)
Setup Time for LATCH
15
ns
f
CLK
Clock Frequency
Cascade Operation
25
MHz
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
IH
Input Voltage High Level
0.7V
DD
V
DD
V
V
IL
Input Voltage Low Level
GND
0.3V
DD
V
I
OH
Output Leakage Current
V
OH
= 16 V
10
A
V
OL
Output Voltage (Serial-OUT) I
OL
= 1mA
0.4
V
V
OH
Output Voltage (Serial-OUT) I
OH
= -1mA
V
DD
-0.4V
V
I
OL1
Output Current
V
O
= 0.7V R
EXT
= 910
20.0
20.1
20.3
mA
I
OL2
V
O
= 0.7V R
EXT
= 360
49.7
50.2
50.7
mA
I
OL1
Output Current Error
between bit (All Output ON)
V
O
= 0.7V R
EXT
= 910
3
%
I
OL2
V
O
= 0.7V R
EXT
= 360
3
%
R
SIN(up)
Pull-up Resistor
150
300
600
K
R
SIN(down)
Pull-down Resistor
100
200
400
K
I
DD(OFF1)
Supply Current (OFF)
R
EXT
= OPEN OUT 0 to 7 = OFF
0.3
0.6
mA
I
DD(OFF2)
R
EXT
= 470
OUT 0 to 7 = OFF
5.5
7.7
I
DD(OFF3)
R
EXT
= 250
OUT 0 to 7 = OFF
10.1
14.1
I
DD(ON1)
Supply Current (ON)
R
EXT
= 470
OUT 0 to 7 = ON
5.5
7.7
I
DD(ON2)
R
EXT
= 250
OUT 0 to 7 = ON
10.1
14.1
STP08CL596
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Table 8: Switching Characteristics (V
DD
=3V, T
= 25C, unless otherwise specified.)
EQUIVALENT CIRCUIT OF INPUTS AND OUTPUTS
Figure 2: /OE Terminal
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
t
PLH1
Propagation Delay Time,
CLK-OUTn, /LE = H, /OE = L
V
DD
= 3 V
V
IH
= V
DD
V
IL
= GND
C
L
= 13pF
I
O
= 40mA
V
L
= 3 V
R
EXT
= 470
R
L
= 65
250
280
ns
t
PLH2
Propagation Delay Time,
/LE-OUTn, /OE = L
220
250
ns
t
PLH3
Propagation Delay Time,
/OE-OUTn, /LE = H
200
250
ns
t
PLH
Propagation Delay Time,
CLK-SDO
25
50
ns
t
PHL1
Propagation Delay Time,
CLK-OUTn, /LE = H, /OE = L
25
50
ns
t
PHL2
Propagation Delay Time,
/LE-OUTn, /OE = L
25
50
ns
t
PHL3
Propagation Delay Time,
/OE-OUTn, /LE = H
50
70
ns
t
PHL
Propagation Delay Time,
CLK-SDO
25
50
ns
t
r
Output Rise Time
200
250
ns
t
f
Output Fall Time
17
25
ns
STP08CL596
5/16
Figure 3: /LE Terminal
Figure 4: CLK, SDI Terminal
Figure 5: SDO Terminal