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TPS2835DR PDF预览

TPS2835DR

更新时间: 2024-11-20 23:37:19
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页数 文件大小 规格书
16页 218K
描述
SINGLE MOSFET DRIVER|SOP|14PIN|PLASTIC

TPS2835DR 数据手册

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TPS2834, TPS2835  
SYNCHRONOUS-BUCK MOSFET DRIVERS  
WITH DEAD-TIME CONTROL  
SLVS223A – NOVEMBER 1999 – REVISED JANUARY 2001  
D PACKAGE  
(TOP VIEW)  
Floating Bootstrap or Ground-Reference  
High-Side Driver  
Adaptive Dead-Time Control  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
ENABLE  
IN  
CROWBAR  
NC  
BOOT  
NC  
HIGHDR  
BOOTLO  
LOWDR  
NC  
50-ns Max Rise/Fall Times With 3.3-nF Load  
2.4-A Typical Output Current  
4.5-V to 15-V Supply Voltage Range  
TTL-Compatible Inputs  
SYNC  
DT  
PGND  
8
V
Internal Schottky Bootstrap Diode  
CC  
SYNC Control for Synchronous or  
Nonsynchronous Operation  
PWP PACKAGE  
(TOP VIEW)  
CROWBAR for OVP, Protects Against  
Faulted High-Side Power FETs  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
ENABLE  
IN  
CROWBAR  
NC  
BOOT  
NC  
HIGHDR  
BOOTLO  
LOWDR  
NC  
Low Supply Current....3 mA Typical  
Ideal for High-Current Single or Multiphase  
Power Supplies  
Thermal  
Pad  
SYNC  
DT  
PGND  
40°C to 125°C Operating Virtual Junction  
Temperature Range  
8
V
CC  
Available in SOIC and TSSOP PowerPAD  
Packages  
NC – No internal connection  
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-chipMOSFET  
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  
isconfiguredasanonsynchronous-buckdriverdisablingthelow-sidedriverwhenSYNCislow. TheCROWBAR  
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  
TPS2830  
TPS2831  
TPS2832  
TPS2833  
TPS2836  
TPS2837  
ADDITIONAL FEATURES  
INPUTS  
Noninverted  
ENABLE, SYNC, and CROWBAR  
CMOS  
CMOS  
TTL  
Inverted  
Noninverted  
Inverted  
W/O ENABLE, SYNC, and CROWBAR  
W/O ENABLE, SYNC, and CROWBAR  
Noninverted  
Inverted  
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.  
PowerPAD is a trademark of Texas Instruments Incorporated.  
Copyright 2001, 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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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