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| 型号： | TPS40197RGYR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | PLASTIC, MO-241BB, VQFN-16 |
| 文件页数： | 1/30页 |
| 文件大小： | 931K |
| 代理商： | TPS40197RGYR |
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2
3
4
5
15
14
13
12
VID3
HDRV
SW
BOOT
VID0
REF
EN
FB
TPS40197
6
11
LDRV
COMP
1
16
7
10
BP
VDD
VID1
VID2
8
9
PGOOD
GND
VID3
VID2
VID1
VID0
SD
V
OUT
V
OUT
V
IN
UDG-08100
HOST
V
IN
TI Information — Selective Disclosure
www.ti.com
SLUS886 – NOVEMBER 2008
SYNCHRONOUS BUCK CONTROLLER WITH 4-BIT VID INTERFACE
FOR SMART-REFLEX DSPs
1
FEATURES
CONTENTS
2
Input Voltage Range: 4.5 V to 14 V
2
4-Bit Dynamic VID-On-The-Fly Support
4
VID Programmable Output Voltage with
6
Programmable Transition Rate
10
Fixed Switching Frequency of 520 kHz
12
Selectable Low-Side (Three Settings) and
18
Fixed High-Side Thermally Compensated
20
Overcurrent Protection
Power Good Indicator
DESCRIPTION
Internal 5-V Regulator
The TPS40197 is a synchronous buck controller that
Voltage Mode Control
operates from 4.5 V to 14 V input supply nominally.
Internally Fixed 5.5-ms Soft-Start Time
The
controller
implements
voltage-mode
control
architecture with the switching frequency fixed at
Pre-Bias Output Safe
520 kHz. The higher switching frequency facilitates
Thermal Shutdown at 140°C
the use of smaller inductor and output capacitors,
16-Pin QFN Package
thereby providing a compact power-supply solution.
An adaptive anti-cross conduction scheme is used to
APPLICATIONS
prevent shoot through current in the power FETs.
Smart-Reflex DSPs
The TPS40197 integrates the PWM control and 4-bit
POL Modules
VID interface in a single chip to allow seamless
on-the-fly VID changes with programmable transition
Telecom
rate.
It
provides
a
simple
power
solution
for
Smart-Reflex DSP cores.
TYPICAL APPLICATION CIRCUIT
1
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.
2
SMART-REFLEX, Smart-Reflex, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40197RGYT | 功能描述:DC/DC 开关控制器 4.5-14V Inp Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS40-20 | 制造商:TOTAL-POWER 制造商全称:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40200 | 制造商:TI 制造商全称:Texas Instruments 功能描述:WIDE INPUT RANGE NON-SYNCHRONOUS VOLTAGE MODE CONTROLLER |
| TPS40200_08 | 制造商:TI 制造商全称:Texas Instruments 功能描述:WIDE INPUT RANGE NON-SYNCHRONOUS VOLTAGE MODE CONTROLLER |
| TPS40200_081 | 制造商:TI 制造商全称:Texas Instruments 功能描述:WIDE INPUT RANGE NON-SYNCHRONOUS VOLTAGE MODE CONTROLLER |
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