IS31LT3948-GRLS2-TR ISSI, IS31LT3948-GRLS2-TR Datasheet - Page 3

• Manufacturer Part Number: IS31LT3948-GRLS2-TR
• Description: LED Lighting Drivers PFM Mode Boost LED Drvr
• Manufacturer: ISSI

Specifications of IS31LT3948-GRLS2-TR

• Input Voltage: 5 V to 100 V
• Maximum Supply Current: 400 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-8
• Factory Pack Quantity: 2500

IS31LT3948
Absolute Maximum Ratings
VCC to GND
CS, ADJ,GATE,TOFF,OVP,FB
VCC Max. Input Current(note)
Junction Temperature Range
Storage Temperature Range
ESD Human Model
Note: Exceeding VCC maximum input current may cause the pin not to clamp at 5V.
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.
Electrical Characteristics
(Unless otherwise specified, Vin=10V, Rin=10K, ADJ floating, T
Note: VIN is the input voltage. When VIN≤5V, connect input voltage directly to Vcc. When VIN>5V, input voltage should be connected to Vcc pin
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 12/24/2012
Symbol
∆UVLO
T
V
UVLO
T
V
V
V
T
V
SD-HYS
OVP-TH
V
BLANK
T
I
CSTH
INDC
OFF
fbTH
SS
ADJ
via an appropriately valued resistor.
CC
SD
Input voltage
V
Undervoltage threshold
Undervoltage threshold hysteresis
Quiescent supply current
Quiescent supply current when
V
Peak current sense threshold
Peak current sense blank interval
Fixed turn-off interval
Peak current control low threshold
Peak current control high threshold
Thermal shutdown threshold
Thermal shutdown hysteresis
Feedback voltage threshold
Overvoltage input threshold
CC
CC
clamp voltage
undervoltage
Parameter
Parameter
Supply voltage
connected to V
appropriate resistor
(Note)
Rin=10KOhm
V
V
V
ADJ=5V
V
Rext=250KΩ
CC
CC
CC
CS
=V
= V
=2.5V
rising
Conditions
CSTH
CC
clamp voltage
+50mV
amb
CC
=25
via a
o
C)
0.29
Min
215
4.3
2.0
0.9
5
spec
Typ
3500V
300
250
240
500
150
-0.3V to 6V
-0.3V to 6V
10mA
-40
-65
2.7
0.5
2.4
0.3
50
10
20
5
1
o
o
C to +150
C to +150
Value
Max
0.31
100
400
265
5.6
3.0
1.1
75
o
o
C
C
3
Unit
mV
mV
ns
uA
uA
o
o
us
V
V
V
V
V
V
V
C
C