現在提供此產品的更新版本
功能與所比較的裝置相似
TPS40192
- Input Operating Voltage Range: 4.5 V to 18 V
- Up to 20-A Output Currents
- Supports Pre-Biased Outputs
- 0.5%, 591-mV Reference
- Switching Frequency
- TPS40192: 600 kHz
- TPS40193: 300 kHz
- Three Selectable Thermally Compensated Short-Circuit Protection Levels
- Hiccup Restart from Faults
- Internal 5-V Regulator
- High-Side and Low-Side MOSFET ON-resistance (RDS(on)) Current Sensing
- 10-Pin 3 mm × 3 mm SON Package
- Internal 4-ms Soft-Start Time
- Thermal Shutdown Protection at 145°C
TPS40192 and TPS40193 are cost-optimized synchronous buck controllers that operate from 4.5 V to 18 V input. These controllers implement a voltage-mode control architecture with the switching frequency fixed at either 600 kHz (TPS40192) or 300 kHz (TPS40193). The higher switching frequency facilitates the use of smaller inductor and output capacitors, thereby providing a compact power-supply solution. An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs.
Short circuit detection is done by sensing the voltage drop across the low-side MOSFET when it is on and comparing it with a user selected threshold of 100 mV, 200 mV or 280 mV. The threshold is set with a single external resistor connected from COMP to GND. This resistor is sensed at startup and the selected threshold is latched. Pulse-by-pulse limiting (to prevent current runaway) is provided by sensing the voltage across the high-side MOSFET when it is on and terminating the cycle when the voltage drop rises above a fixed threshold of 550 mV. When the controller senses an output short circuit, both MOSFETs are turned off and a timeout period is observed before attempting to restart. This behavior provides limited power dissipation in the event of a sustained fault.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS4019x 4.5-V to 18-V Input, Voltage-Mode, Synchronous Buck Controller With Power Good datasheet (Rev. H) | PDF | HTML | 2019年 5月 23日 |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
Selection guide | DC/DC Buck Controller Solutions Selection Guide | 2018年 2月 6日 | ||
Application note | Not All Jitter Is Created Equal (Rev. A) | 2015年 7月 4日 | ||
Application note | Enabling Multiple TPS4019x Devices | 2012年 3月 29日 | ||
Application note | 'C6472 12Vin Flexible Pwr Design Using DCDC Controllers and LDOs (8x C6472) | 2010年 3月 26日 | ||
Application note | Power Reference Design for the 'C6472, 12V DCDC Controllers, and LDOs | 2010年 3月 26日 | ||
Application note | TMS320C6472 5V Input Pwr Design, Integrated FET DC/DC Converters and Controllers | 2010年 3月 26日 | ||
EVM User's guide | Using the TPS40192EVM-525 | 2009年 11月 20日 | ||
Application note | 5Vin DM643x Power using DC/DC Controllers and LDO | 2008年 10月 9日 | ||
EVM User's guide | Using the TPS40192EVM-001 | 2007年 1月 29日 |
設計與開發
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TPS40192 TINA-TI Average Reference Design (Rev. A)
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VSON (DRC) | 10 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點