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TPS61169DCKR Datasheet(PDF) 5 Page - Texas Instruments

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Part # TPS61169DCKR
Description  High Current-Boost WLED Driver
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61169DCKR Datasheet(HTML) 5 Page - Texas Instruments

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TPS61169
www.ti.com
SNVSA40A – OCTOBER 2014 – REVISED MARCH 2016
Product Folder Links: TPS61169
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
7.5 Electrical Characteristics
Over operating free-air temperature range, VIN = 3.6 V, CTRL = VIN (unless otherwise specified).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER SUPPLY
VIN
Input voltage range
2.7
5.5
V
VVIN_UVLO
Undervoltage lockout threshold
VIN falling
VIN rising
2
2.3
2.6
V
VVIN_HYS
VIN UVLO hysteresis
200
mV
IQ_VIN
Operating quiescent current into
VIN
Device enable, switching 1.2 MHz
and no load,
0.3
0.45
mA
ISD
Shutdown current
CTRL = GND
1
2
µA
CONTROL LOGIC AND TIMING
VH
CTRL Logic high voltage
1.2
V
VL
CTRL Logic Low voltage
0.4
V
RPD
CTRL pin internal pull-down
resistor
300
K
Ω
tSD
CTRL logic low time to shutdown
CTRL high to low
2.5
ms
VOLTAGE AND CURRENT REGULATION
VREF
Voltage feedback regulation
voltage
Duty = 100%, TA ≥ 25°C
188
204
220
mV
IFB
FB pin bias current
VFB = 204 mV
2.5
µA
tREF
VREF filter time constant
1
ms
POWER SWITCH
RDS(ON)
N-channel MOSFET on-resistance
0.35
0.7
Ω
ILN_NFET
N-channel leakage current
VSW = 35 V
1
µA
SWITCHING FREQUENCY
ƒSW
Switching frequency
VIN = 3 V
0.75
1.2
1.5
MHz
PROTECTION AND SOFT START
ILIM
Switching MOSFET current limit
D = DMAX , TA ≤ 85°C
1.2
1.8
2.4
A
ILIM_Start
Switching MOSFET start-up
current limit
TA ≤ 85°C
0.72
A
tHalf_LIM
Time step for half current limit
6.5
ms
VOVP_SW
Output voltage overvoltage
threshold
36
37.5
39
V
THERMAL SHUTDOWN
Tshutdown
Thermal shutdown threshold
160
°C
Thys
Thermal shutdown hysteresis
15
°C


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