IS32LT3175N Datasheet, PDF (4/19 Pages) Integrated Silicon Solution, Inc – SINGLE CHANNEL LINEAR LED DRIVER WITH FADE IN/OUT AND PWM DIMMING

IS32LT3175N/P
ABSOLUTE MAXIMUM RATINGS
VCC, OUT, PWM
EN, ISET, TSET_UP, TSET_DN
Ambient operating temperature, TA=TJ
Maximum continuous junction temperature, TJ(MAX)
Storage temperature range, TSTG
Maximum power dissipation, PDMAX
ESD (HBM)
ESD (CDM)
-0.3V ~ +45V
-0.3V ~ +7.0V
-40°C ~ +125°C
150°C
-55°C ~ +150°C
1.96W
±2kV
±750V
Note:
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.
THERMAL CHARACTERISTICS
Characteristic
Test Conditions
Package Thermal Resistance
(Junction to Ambient), θJA
Package Thermal Resistance
(Junction to Pad), θJP
On 4-layer PCB based on JEDEC standard
at 1W, TA=25°C
Value
50.98°C/W
2.24°C/W
ELECTRICAL CHARACTERISTICS
TJ = -40°C ~ +125°C, VCC=12V, refer to each condition description. Typical values are at TJ = 25°C.
Symbol
Parameter
Condition
Min. Typ. Max. Unit
VCC Supply voltage range
VDO
Minimum dropout
voltage
VCC –VOUT, IOUT= -150mA (Note 1)
VCC –VOUT, IOUT= -100mA (Note 2)
PWM pin floating. EN disables the output.
ICC
Quiescent supply
current
RISET=15kΩ, EN enable the output, PWM floating,
OUT floating
VCC=4.2V, EN enable the output. VPWM=4V for
IS32LT3175P and VPWM=GND for IS32LT3175N.
tON Startup time
VCC> 6V to IOUT<-5mA (Note 4)
IOUT_LIM Output limit current
VCC –VOUT =1V, OUT sourcing current,
ISET pin connected to GND.
IOUT
Output current
(Note 3)
RISET = 15kΩ, VCC –VOUT =1V,-40°C<TJ<+125°C
EOUT
Absolute current
accuracy (Note 3)
-50mA≤IOUT≤-20mA, VCC –VOUT =1V,
-40°C< TJ <+125°C
-150mA≤IOUT<-50mA, VCC –VOUT =1V,
-40°C< TJ <125°C
gLINE
Output current line
regulation
IOUT = -50mA, 6V<VCC<18V, VOUT = VCC -2V
(Note 4)
gLOAD
Output current load
regulation
2.5V< VOUT <VCC-2.0V,IOUT = -50mA (Note 4)
tSL Current slew time Current rise/fall between 0%~100%, VTSET = 0V
tTD_ON
PWM current latency
Delay time between PWM rising edge to 10% of
IOUT
5
0.1
-240
-105
-8
-6
-0.2
-0.2
45
2.3
0.25
-205
-100
70
10
42 V
900 mV
700 mV
1 mA
3.8 mA
0.6 mA
400 μs
-160 mA
-95 mA
8%
6%
0.2 mA/V
0.2 mA/V
100 μs
17 μs
Integrated Silicon Solution, Inc. – www.issi.com
4
Rev.A, 07/19/2016