TPS40070
- Operation Over 4.5-V to 28-V Input Range
- Programmable Fixed-Frequency up to 1-MHz Voltage-Mode Controller
- Predictive Gate Drive™ With Anti-Cross Conduction Circuitry
- <1% Internal 700-mV Reference
- Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
- 16-Pin PowerPAD™ Package
- Thermal Shutdown Protection
- TPS40070: Source Only
- TPS40071: Source/Sink
- Programmable High-Side Sense Short Circuit Protection
- APPLICATIONS
- Power Modules
- Networking/Telecom
- PCI Express
- Industrial
- Servers
Predictive Gate Drive and PowerPAD are a trademarks of Texas Instruments.
The TPS4007x is a mid voltage, wide input (4.5 V to 28 V), synchronous, step-down converter.
The TPS4007x offers design flexibility with a variety of user programmable functions, including; soft-start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection.
The TPS4007x incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates predictive anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction, while minimizing to eliminating current flow in the body diode of the SR FET. The TPS40071 allows the supply output to sink current at all times. The TPS40070 implements a source-only power supply.
The TPS4007x uses voltage feed-forward control techniques to provide good line regulation over a wide-input voltage range, and fast response to input line transients with near constant gain with input variation to ease loop compensation. The externally programmable short circuit protection provides fault current limiting, as well as hiccup mode operation for thermal protection in the presence of a shorted output.The TPS4007x is packaged in a 16-pin PowerPAD package for better thermal performance at higher voltages and frequencies. See SLMA002 for information on board layout for the PowerPAD package. The pcb pad that the PowerPAD solders to should be connected to GND. Due to the die attach method, the PowerPAD itself cannot be used as the device ground connection. The two device grounds must be connected as well.
技術資料
種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
---|---|---|---|---|---|---|
* | データシート | High Efficiency Midrange Input Synchronous Buck Controller w/Voltage Feedforward データシート (Rev. J) | 2009年 4月 3日 | |||
* | エラッタ | TPS40070/71 Errata | 2006年 7月 7日 |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点