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TPS61187RTJR Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS61187RTJR
Description  WLED Driver for Notebooks with PWM Interface and Auto Phase Shift
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61187RTJR Datasheet(HTML) 4 Page - Texas Instruments

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TPS61187
SLVSA85D – JUNE 2010 – REVISED FEBRUARY 2012
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VIN = 12V, PWM/EN = high, IFB current = 20mA, IFB voltage = 500mV, TA = –40°C to 85°C, typical values are at TA = 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OSCILLATOR
fS
Oscillator frequency
RFSW = 499 kΩ
0.8
1.0
1.2
MHz
Dmax
Maximum duty cycle
IFB = 0
94%
OC, SC, OVP AND SS
ILIM
N-Channel MOSFET current limit
D = Dmax
2.0
3.0
A
VCLAMP_TH
Ouput voltage clamp program threshold
1.90
1.95
2.00
V
VOVP_IFB
IFB overvoltage threshold
Measured on the IFBx pin, IFB on
12
13.5
15
V
FPO, FAULT
VFPO_L
FPO Logic low voltage
I_SOURCE = 0.5 mA
0.4
V
VFAULT_HIGH
Fault high voltage
Measured as VIN – VFAULT
0.1
V
VFAULT_LOW
Fault low voltage
Measured as VIN – VFAULT , Sink, 10 µA
6
8
10
V
IFAULT
Maximum sink current
VIN – VFAULT = 0 V
20
µA
THERMAL SHUTDOWN
Thermal shutdown threshold
150
Tshutdown
°C
Thermal shutdown hysteresis
15
4
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Copyright © 2010–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS61187


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