TPS65161
- 8-V to 14.7-V Input Voltage Range
- VS Output Voltage Range up to 19 V
- TPS65161 has a 2.8-A Switch Current Limit
- TPS65161A has a 3.7-A Switch Current Limit
- TPS65161B has a 3.7-A Switch Current Limit and 100-mA
Charge Pump Output Current - 1.5% Accurate 2.3-A Step-Down Converter
- 500-kHz/750-kHz Fixed Switching Frequency
- Negative Charge Pump Driver for VGL
- Positive Charge Pump Driver for VGH
- Adjustable Sequencing for VGL, VGH
- Gate Drive Signal to Drive External MOSFET
- Internal and Adjustable Soft Start
- Short-Circuit Protection
- Overvoltage Protection
- Thermal Shutdown
- Available in HTSSOP-28 Package
The TPS65161 family offers a compact power supply solution to provide all four voltages required by thin-film transistor (TFT) LCD panels. With their high current capabilities, the devices are ideal for large screen monitor panels and LCD TV applications.
Compared to the TPS65160 and TPS65160A the TPS65161/A/B family of devices offer increased step-down converter output current. The TPS65161B also offers increased charge pump output current, and a higher undervoltage lockout threshold. The devices can be powered from a 12-V input supply and generate the four main supply voltages required by TFT LCD display panels.
Each device comprises a boost converter to generate the source voltage VS, a step-down converter to generate the logic supply V(LOGIC), and regulated positive and negative charge pumps to generate the TFT bias voltages VGH and VGL. Both switching converters and both charge pumps operate from a central clock that can be set to either 750-kHz or 500-kHz by tying the FREQ pin high or low.
The TPS65161/A/B devices feature adjustable power supply sequencing, plus a number of safety features such as boost converter overvoltage protection, buck converter short-circuit protection, and thermal shutdown. The devices also incorporate a gate drive signal to control an external MOSFET isolation switch connected in series with VS or VGH (see the application section at the end of this data sheet for more information).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Bias Power Supply for TV and Monitor TFT LCD Panels. datasheet (Rev. E) | 2013年 3月 5日 | |
| Application note | Basic Calculation of a Boost Converter's Power Stage (Rev. D) | PDF | HTML | 2022年 10月 28日 | |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018年 9月 19日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Generation of a VCOM buffer input using PWM signal | 2015年 12月 21日 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015年 8月 17日 | ||
| EVM User's guide | TPS65161EVM-194 (Rev. A) | 2008年 4月 22日 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 2006年 9月 15日 |
設計與開發
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TPS65161EVM-194 — TPS65161 評估模組
The TPS65161EVM-194 is an evaluation tool for the TPS65161 Bias Power Supply for TV and Monitor TFT LCD Panels.
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | 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