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| 型号： | TPS40190DRCRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件页数： | 1/25页 |
| 文件大小： | 615K |
| 代理商： | TPS40190DRCRG4 |
1
FEATURES
DESCRIPTION
APPLICATIONS
1
2
3
9
8
SW
BOOT
ENABLE
FB
COMP
TPS40190
10
HDRV
4
5
6
BP5
VDD
GND
7
LDRV
SHUTDOWN
VDD
UDG05059
VOUT
SLUS658B – JULY 2005 – REVISED AUGUST 2007
www.ti.com
LOW PIN COUNT SYNCHRONOUS BUCK CONTROLLER
Input Operating Voltage Range: 4.5 V to 15 V
Reference 0.591 V ±1%
The TPS40190 is a cost-optimized synchronous buck
controller that operates from 4.5 V to 15 V nominally,
Voltage Mode Control
and implements a fixed frequency voltage mode
Internal 5-V Regulator For Internal
power supply. The controller uses an adaptive
Housekeeping, Driver Power and Light
anti-cross conduction scheme to prevent both the
External Loads
high-side and the rectifier MOSFET to be turned on at
the same time, preventing shoot through current in
Selectable Short-Circuit Protection Thresholds
the two MOSFETs.
Pre-Bias Ouput Safe
The controller also provides a short circuit protection
Fixed Switching Frequency of 300 kHz
threshold that is user selectable between one of three
Internal Soft-Start
values. The protection level is set with a single
Small 3 mm × 3 mm, 10-Pin SON Package
external resistor connected from COMP to GND.
During start-up, the impedance connected to COMP
Bootstrapped Drivers for N-Channel MOSFET
is sensed, and the information is decoded to select
Adaptive Anti-Cross Conduction
one of the three thresholds. When the controller
Internal Bootstrap Diode
senses an output short circuit, both MOSFETs are
turned off and a timeout period is observed before
1.2-A Drivers for Decreased Switching Loss
attempting to restart. This provides limited power
dissipation in the event of a sustained fault.
Cable modem CPE
The TPS40190 provides strong drivers to minimize
switching losses in the power stage, reducing heat
Digital Set Top Box
build up in the MOSFETs and allowing larger
Graphics/Audio Cards
MOSFETs to be used without undue switching time
Entry-level and Mid-Range Servers
penalty.
SIMPLIFIED APPLICATION DIAGRAM
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2005–2007, 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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| TPS40190DRCTG4 | SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO10 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40190DRCT | 功能描述:DC/DC 开关控制器 Low Pin Count Sync Buck DC/DC 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 |
| TPS40190DRCTG4 | 功能描述:DC/DC 开关控制器 Low Pin Count Sync Buck DC/DC 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 |
| TPS40190EVM-001 | 功能描述:电源管理IC开发工具 Sync Buck Converter Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS40192 | 制造商:TI 制造商全称:Texas Instruments 功能描述:4.5-V TO 18-V INPUT 10-PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD |
| TPS40192_1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:4.5-V TO 18-V INPUT 10-PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD |
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