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TPS61197DR Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza TPS61197DR
Descripción Electrónicos  Single-String WLED Driver for LCD TV
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS61197DR Datasheet(HTML) 4 Page - Texas Instruments

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TPS61197
SLVSC25 – JULY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VIN= 24V, TA = –40°C to 85°C, typical values are at TA = 25°C, EC1 = 470μF, EC2 = 22μF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ERROR AMPLIFIER
ISINK
Comp pin sink current
VOVP = VREF + 200mV, VCOMP = 1V
20
µA
ISOURCE
Comp pin source current
VOVP = VREF – 200mV, VCOMP = 1V
20
µA
GmEA
Error amplifier transconductance
90
120
150
µS
REA
Error amplifier output resistance
20
M
Ω
fEA
Error amplifier crossover frequency
1000
kHz
GATE DRIVER
RGDRV_SRC
Gate driver impedance when sourcing
VGDRV = 7 V, IGDRV = –20 mA
5
10
Ω
RGDRV_SNK
Gate driver impedance when sinking
VDD = 7 V, IGDRV = 20 mA
2
5
Ω
IGDRV_SRC
Gate driver source current
VDD = 7 V, VGDRV = 5 V
200
mA
IGDRV_SNK
Gate driver sink current
VDD = 7 V, VGDRV = 2 V
400
mA
Overcurrent detection threshold during
VPWM_OCP
VIN = 8 V to 30 V, TJ = 25°C to 125°C
376
400
424
mV
PWM
VPFM_OCP
Overcurrent detection threshold during PFM
180
mV
OVP
VOVPTH
Over-voltage protection threshold
2.98
3.04
3.10
V
IOVP_LEAK
Leakage current at OVP pin
–100
0
100
nA
FAULT INDICATOR
IFLT_H
Leakage current at high impedance
VFLT = 24 V
1
nA
IFLT_L
Sink current at low output
VFLT = 1 V
2
5
mA
THERMAL SHUTDOWN
TSTDN
Thermal shutdown threshold
150
°C
THYS
Thermal shutdown threshold hysteresis
15
°C
4
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Product Folder Links: TPS61197


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