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TPS65121RGTR Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza TPS65121RGTR
Descripción Electrónicos  SINGLE-INDUCTOR QUADRUPLE-OUTPUT TFT LCD POWER SUPPLY
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Fabricante Electrónico  TI1 [Texas Instruments]
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TPS65121RGTR Datasheet(HTML) 3 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS65120, TPS65121, TPS65123, TPS65124
SLVS531A – JUNE 2004 – REVISED MARCH 2005
V
IN = 3.6 V, EN = RUN = VIN, L = 10 µH, TA = -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CONVERTER STAGE
RL_MAIN≥ 330 Ω at VMAIN = 5 V,
RL_VGH≥ 12 kΩ at VGH = 12 V,
Input voltage for full load operation
2.7
5.5
V
RL_VGL≥ 12 kΩ at VGL = -12 V,
VLDOIN= GND, TA = -40°C to 85°C
VIN
RL_MAIN≥ 660 Ω at VMAIN = 5 V,
RL_VGH≥ 24 kΩ at VGH = 12 V,
Minimum input voltage for start-up
2.5
V
RL_VGL≥ 24 kΩ at VGL = -12 V,
VLDOIN= GND, TA = -20°C to 85°C
RL_MAIN = 250 Ω at VMAIN = 5 V
f
Switching frequency
4.0
MHz
VLDOIN= ENVGH = ENVGL = GND
VIN≥ 2.7 V
35
PGH
Output power on VGH
mW
VIN≥ 2.5 V
15
VIN≥ 2.7 V
35
PGL
Output power on VGL
mW
VIN≥ 2.5 V
15
VIN≥ 2.5 V
60
VIN≥ 2.7 V
120
Total output power on
PTOT
mW
VBOOT + VGH + VGL
VIN≥ 3 V
150
VIN≥ 4.5 V
250
VMAIN = 5.0 V, IBOOT = 20 mA,
η
Power efficiency
VGH = 15 V, VGL = -10 V,
83%
IGH = IGL = 100 µA, VLDOIN = GND
ILIM
P-MOS1 current limit
2.7 V
≤ V
IN≤ 5.5 V
150
200
mA
ISTART-UP
P-MOS1 start-up current limit
2.7 V
≤ V
IN≤ 5.5 V
65
mA
VIN = VGS = 3.6 V
2.5
4.3
P-MOS1 switch on-resistance
VIN = VGS = 2.5 V
3.8
6.9
VBOOT = VGS = 3.7 V
1.9
3.5
rDS(ON)
N-MOS1 switch on-resistance
VBOOT = VGS = 5 V
1.4
2.3
P-MOS1 leakage current
0.01
VDS = 6 V, TA = 25°C
µA
N-MOS1 leakage current
0.01
VGS = VBOOT = 5.5 V, VSWP = 2 V,
N-MOS2 + P-MOS2 forward voltage drop
400
600
mV
IBOOT = ID = 50 mA
VGS = VBOOT = 5.5 V, VSWP = 2 V,
N-MOS3 + D1 forward voltage drop
900
1100
mV
IGH = ID = 50 mA
CONVERTER SUPPLY CURRENT
Quiescent current into VIN
IMAIN = IGH = IGL = 0 mA,
140
170
VGH = +15 V, VGL = -15 V,
Quiescent current into BOOT
30
60
VMAIN = 5 V, VFBH = VFBM = +1.5 V,
IQ
µA
VFBL = -0.2 V, VBOOT = 5.25 V,
Quiescent current into VGH
0.1
1
VLDOIN = GND, EN = RUN = VIN,
TA = 25°C
ISD
Shutdown current
TA = 25°C
0.1
1
µA
3


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