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TPS51113 Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS51113
Description  SYNCHRONOUS BUCK CONTROLLER WITH HIGH-CURRENT GATE DRIVER
PDF  26 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS51113 Datasheet(HTML) 4 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS51113, TPS51163
SLUS864 – MAY 2009........................................................................................................................................................................................................ www.ti.com
These specifications apply for -40°C
≤ TA ≤ to 85°C, VVDD = 12 Vdc. (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT SUPPLY
VVDD
4.5
13.2
V
IVDD
Supply current
Switching enabled(1)
30
mA
Shutdown current
Switching inhibited
6
mA
VDD UVLO
UVLO
VDD UVLO
VDD raising
4.0
4.3
4.6
V
UVLOHYS
UVLO threshold hysteresis
250
mV
REFERENCE
VREF
Reference voltage
0°C
≤ TA ≤ 85°C
794
800
806
mV
Reference voltage
–40°C
≤ TA ≤ 85°C
792
800
808
mV
OSCILLATOR
TPS51113
270
300
330
Measured on the SW pin,
fSW
Switching frequency
kHz
TA = 25°C
TPS51163
540
600
660
VRAMP
PWM ramp amplitude(1)
1.5
V
PWM
TPS51113
72%
DMAX
Maximum duty cycle
TPS51163
69%
TONMIN
Minimum controlled pulse(1)
100
ns
TNO
Output driver dead time
30
ns
SOFT START
TSSD
Soft-start delay time
4.0
5.5
7.0
ms
TSS
Soft-start time
2.0
3.5
5.0
ms
ERROR AMPLIFIER
GBWP
Gain bandwidth product(1)
CCOMP < 20 pF
16
MHz
Aol
DC gain(1)
89
dB
IIB
Input bias current
–100
nA
EASR
Error amplifier output slew rate(1)
CCOMP < 20 pF
6
V/
µs
VCOMPDIS
COMP_EN pin disabling voltage
0.8
V
SHORT CIRCUIT PROTECTION
IILIM
Overcurrent threshold set current
9.3
10.0
10.7
µA
GATE DRIVERS
IHDHI
High-side driver pull-up current(1)
BOOT to HDRV voltage is 5 V
1.5
A
RHDLO
High-side driver pull-down resistance
VVDD = 12 V; IDRV = –100 mA
1.4
Ω
ILDHI
Low-side driver pull-up current(1)
VDD to LDRV voltage is 5 V
1.5
A
RLDLO
Low-side driver pull-down resistance
VVDD = 12 V
0.8
Ω
(1)
Ensured by design. Not production tested.
4
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s) :TPS51113 TPS51163



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