time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are
advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the
product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not
authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 01/01/2016
3
IS32LT3180
ABSOLUTE MAXIMUM RATINGS
VCC, ERC, PWM, FAULT, OUTx, FB
TAIL, STOP
OUTx current
Operating junction temperature, T
J
Storage temperature range, T
STG
Operating ambient temperature range, T
J
= T
A
Package thermal resistance (Junction to ambient),
θ
JA
Power dissipation, P
D(MAX)
(Note 2)
ESD (HBM)
ESD (CDM)
-0.3 to 50V
-0.3 to 5.5V
100mA
150°C
-55°C ~ +150°C
-40°C ~ +150°C
39.9°C/W
2.5W
±2kV
±750V
Note 1:
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only
and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is
not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Note 2:
Detail information please refers to package thermal de-rating curve on Page 12.
ELECTRICAL CHARACTERISTICS
T
J
= -40°C ~+150°C, V
CC
= 6V~16V, R
STOP
=3.09kΩ, R
TAIL
=7.72kΩ. (Note 3)
Symbol
I
CC
Parameter
Input current
Condition
I
OUTx
=35mA, V
CC
=16V, 8 channels
T
J
= -40°C ~+125°C
T
J
= +150°C (Note 5)
I
OUT_MAX
Maximum sink current
I
OUTACC
Sink current accuracy
T
J
= -40°C ~+125°C, V
OUTx
=1.2V
T
J
= +150°C (Note 5, 6)
I
OUTx
=35mA = (I
OUT_MAX
+I
OUT_MIN
)/2
V
OUTx
= 0.8V, T
J
= -40°C ~+125°C
(Note 4, 6)
1-2×I
OUT
/(I
OUT_MAX
+I
OUT_MIN
)
I
OUTx
=35mA, T
J
= -40°C ~+125°C
T
J
= +150°C (Note 5, 6)
I
L
L
R
V
OVP
I
OSB
I
FSB
V
OC
V
TH
V
SCR
R
CS
Current leakage
Line regulation
Overvoltage setback threshold
Overvoltage setback current
FAULT reporting of setback
current
Open LED detection threshold
Output disable threshold
Short LED detection threshold
for reduced LED Current
Current slew rate
I
OUTx
= 35mA, 10%~90%
T
J
= -40°C ~+125°C (Note 5)
T
J
= +150°C (Note 5)
3.2
V
OUTx
=42V
6V< V
CC
<16V, 0.8V<V
OUTx
<3V
I
OUTx
= 35mA, 8 channels
T
J
= -40°C ~+125°C (Note 6)
@99%I
OUTx
T
J
= -40°C ~+125°C (Note 6)
V
CC
=20V
T
J
= -40°C ~+125°C (Note 6)
T
J
= -40°C ~+125°C (Note 6)
0.3
16
0.6
18.7
95
80
0.4
100
3.6
5
1
0.5
250
4
20
-8
-5
75
25
0
0
±7
1
4
23
µA
mA
V
%I
OUT
%I
OUT
V
mV
V
8
5
Min.
Typ.
6.0
4.5
mA
Max.
8.0
Unit
mA
%
∆I
OUT
Current matching
%
mA/µs
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 01/01/2016
4
IS32LT3180
ELECTRICAL CHARACTERISTICS (CONTINUE)
T
J
= -40°C ~+150°C, V
CC
= 6V~16V, R
STOP
=3.09kΩ, R
TAIL
=7.72kΩ. (Note 3)
Symbol
T
RS
T
SD
T
SD_HY
I
TFB
V
FAULT
I
LF
V
PWM_H
V
PWM_L
V
FB
I
ERC
V
STOP
Parameter
Thermal rollback start
temperature
Thermal shutdown
Threshold
Thermal hysteresis
Condition
I
OUTx
>95% of maximum value
(Note 5)
I
OUTx
has rolled off to 10% of
maximum value (Note 5)
(Note 5)
150
Min.
Typ.
130
160
15
50
0.1
0.1
1.9
0.7
0.95
V
ERC
≥
3V
T
J
= -40°C ~+125°C (Note 4)
T
J
= +150°C (Note 5)
(Note 4)
90
Duty cycle set to 5%, V
TAIL
= 0.6V
T
J
= -40°C ~+125°C (Note 6)
PWM accuracy
Duty cycle set to 50%, V
TAIL
= 2.4V
T
J
= -40°C ~+125°C (Note 6)
Duty cycle set to 80%, V
TAIL
= 3.6V
T
J
= -40°C ~+125°C (Note 6)
t
ON
t
PWM
f
PWM
Turn-on delay
PWM on delay
PWM frequency
V
CC
=0V step to V
CC
=12V, the delay
between 0.9×V
CC
with 0.9×I
OUTx
V
CC
=12V V
PWM
=12V step to V
PWM
=0V
V
PWM
= 0V
3.5
46
70
5
1.05
1.0
1.05
6
1.08
0.45
100
100
5
50
80
1
50
1
110
6.5
54
90
2
100
1.11
1.15
0.2
1
2.2
Max.
Unit
°C
°C
°C
%I
OUT
V
µA
V
V
V
mA
V
A/A
µA
%
%
%
ms
µs
kHz
FAULT reporting of thermal
(Note 5)
rollback
FAULT pin voltage
FAULT pin input leakage
current
PWM high threshold
PWM minimum threshold
FB regulation voltage
ERC drive current
STOP pin output voltage
STOP pin current to I
OUTx
Sink current = 5mA
V
FAULT
= 20V
V
TAIL
TAIL pin output current
Note 3:
All parts are production tested at T
J
= -40°C ~ +150°C, unless otherwise noted. Other temperature limits are guaranteed by design.
Note 4:
Accuracy of the STOP pin output voltage need not meet the specification so long as the output current accuracy specification over the
full programmable current range can be guaranteed.
Note 5:
Guaranteed by design.
Note 6:
The output current please refers to Figure 9 at Page 7 when T
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