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| 型号： | TPS40193DRCR |
| 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： | 3/38页 |
| 文件大小： | 707K |
| 代理商： | TPS40193DRCR |
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www.ti.com
SLUS719C – MARCH 2007 – REVISED AUGUST 2010
APPLICATION INFORMATION
Introduction
The TPS40192 and TPS40193 are cost optimized controllers providing all the necessary features to construct a
high performance DC/DC converter while keeping costs to a minimum. Support for pre-biased outputs eliminates
concerns about damaging sensitive loads during startup. Strong gate drivers for the high side and rectifier
N-channel MOSFETs decrease switching losses for increased efficiency. Adaptive gate drive timing prevents
shoot through and minimizes body diode conduction in the rectifier MOSFET, also increasing efficiency.
Selectable short circuit protection thresholds and hiccup recovery from a short circuit increase design flexibility
and minimize power dissipation in the event of a prolonged output fault. The dedicated ENABLE pin allows the
converter to be placed in a very low quiescent current shutdown mode. Internally fixed switching frequency and
soft-start time reduce external component count, simplifying design and layout, as well as reducing footprint and
cost. The 3 mm × 3 mm package size also contributes to a reduced overall converter footprint.
Voltage Reference
The band gap cell is designed with a trimmed 591-mV output. The 0.5% tolerance on the reference voltage
allows the user to design a very accurate power-supply.
Oscillator
The TPS40192 has a fixed internal switching frequency of 600 kHz. Tthe TPS40193 operates at a switching
frequency of 300 kHz.
UVLO
When the input voltage is below the UVLO threshold, the device holds all gate drive outputs in the low (OFF)
state. When the input rises above the UVLO threshold, and the ENABLE pin is above the turn ON threshold, the
oscillator begins to operate and the start-up sequence is allowed to begin. The UVLO level is internally fixed at
4.2 V.
Copyright 2007–2010, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40193DRCRG4 | 功能描述:DC/DC 开关控制器 4.5V-18V Input 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 |
| TPS40193DRCT | 功能描述:DC/DC 开关控制器 4.5V-8V Input Synch Buck Contr 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 |
| TPS40193DRCT | 制造商:Texas Instruments 功能描述:; Leaded Process Compatible:Yes; Peak Re 制造商:Texas Instruments 功能描述:IC, SYNC BUCK CONTROLLER, SON-10 |
| TPS40193DRCTG4 | 功能描述:DC/DC 开关控制器 4.5V-18V Input 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 |
| TPS40193EVM-001 | 功能描述:电源管理IC开发工具 TPS40193 Evaluation Module 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 |
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