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TPS2834DR PDF预览

TPS2834DR

更新时间： 2024-11-18 12:16:11
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
23页 988K
描述
SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEAD-TIME CONTROL

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中文翻译

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TPS2834DR 数据手册

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SLVS223B − NOVEMBER 1999 − REVISED AUGUST 2002  
D PACKAGE  
(TOP VIEW)  
D
Floating Bootstrap or Ground-Reference  
High-Side Driver  
D
D
D
D
D
D
D
Adaptive Dead-Time Control  
1
2
3
4
5
6
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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)  
D
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  
D
Low Supply Current....3 mA Typical  
D
Ideal for High-Current Single or Multiphase  
Power Supplies  
Thermal  
Pad  
SYNC  
DT  
PGND  
D
D
−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-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 PowerPADpackages 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.  
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Copyright 2002, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...23

中文翻译

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TPS2834DR 替代型号

型号 品牌 替代类型 描述 数据表
TPS2834DRG4 TI

完全替代

 SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEAD-TIME CONTROL
TPS2834DG4 TI

完全替代

 SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEAD-TIME CONTROL
TPS2834D TI

类似代替

 SYNCHRONOUS-BUCK MOSFET DRIVERS WITH DEADTIME CONTROL

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TPS2835 TI

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TPS2835D TI

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TPS2835DR ETC

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