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TPS2835PWPRG4 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS2835PWPRG4
Description  SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEAD-TIME CONTROL
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS2835PWPRG4 Datasheet(HTML) 1 Page - Texas Instruments

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TPS2834, TPS2835
SYNCHRONOUSBUCK MOSFET DRIVERS
WITH DEADTIME CONTROL
SLVS223B − NOVEMBER 1999 − REVISED AUGUST 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Floating Bootstrap or Ground-Reference
High-Side Driver
D Adaptive Dead-Time Control
D 50-ns Max Rise/Fall Times With 3.3-nF Load
D 2.4-A Typical Output Current
D 4.5-V to 15-V Supply Voltage Range
D TTL-Compatible Inputs
D Internal Schottky Bootstrap Diode
D SYNC Control for Synchronous or
Nonsynchronous Operation
D CROWBAR for OVP, Protects Against
Faulted High-Side Power FETs
D Low Supply Current....3 mA Typical
D Ideal for High-Current Single or Multiphase
Power Supplies
D −40°C to 125°C Operating Virtual Junction
Temperature Range
D Available in SOIC and TSSOP PowerPAD
Packages
description
The TPS2834 and TPS2835 are MOSFET drivers for synchronous-buck power stages. These devices are ideal
for designing a high-performance power supply using switching controllers that do not include on-chip MOSFET
drivers. The drivers are designed to deliver minimum 2-A peak currents into large capacitive loads. The
high-side driver can be configured as ground-reference or as floating-bootstrap. An adaptive dead-time control
circuit eliminates shoot-through currents through the main power FETs during switching transitions, and
provides high efficiency for the buck regulator. The TPS2834 and TPS2835 have additional control functions:
ENABLE, SYNC, and CROWBAR. Both high-side and low-side drivers are off when ENABLE is low. The driver
is configured as a nonsynchronous-buck driver disabling the low-side driver when SYNC is low. The CROWBAR
function turns on the low-side power FET, overriding the IN signal, for overvoltage protection against faulted
high-side power FETs.
The TPS2834 has a noninverting input, while the TPS2835 has an inverting input. These drivers are available
in 14-terminal SOIC and thermally enhanced TSSOP PowerPAD
 packages and operate over a junction
temperature range of − 40
°C to 125°C.
Related Synchronous MOSFET Drivers
DEVICE NAME
ADDITIONAL FEATURES
INPUTS
TPS2830
ENABLE, SYNC, and CROWBAR
CMOS
Noninverted
TPS2831
ENABLE, SYNC, and CROWBAR
CMOS
Inverted
TPS2832
W/O ENABLE, SYNC, and CROWBAR
CMOS
Noninverted
TPS2833
W/O ENABLE, SYNC, and CROWBAR
CMOS
Inverted
TPS2836
W/O ENABLE, SYNC, and CROWBAR
TTL
Noninverted
TPS2837
W/O ENABLE, SYNC, and CROWBAR
TTL
Inverted
Copyright
 2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
PowerPAD is a trademark of Texas Instruments Incorporated.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PWP PACKAGE
(TOP VIEW)
NC − No internal connection
ENABLE
IN
CROWBAR
NC
SYNC
DT
PGND
BOOT
NC
HIGHDR
BOOTLO
LOWDR
NC
VCC
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ENABLE
IN
CROWBAR
NC
SYNC
DT
PGND
BOOT
NC
HIGHDR
BOOTLO
LOWDR
NC
VCC
D PACKAGE
(TOP VIEW)
Thermal
Pad


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TPS2835PWPRG4 TI1-TPS2835PWPRG4 Datasheet
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[Old version datasheet]   SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEAD-TIME CONTROL
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