TPS65167A
- 6 V to 14 V Input Voltage Range
- Vs Output Voltage Range up to 19 V
- Boost Converter With 3.5-A Switch Current
- Boost Converter Overvoltage Protection
- 2.5-A Step-Down Converter With 3.3-V Fixed or Adjustable Output
- 750 kHz Fixed Switching Frequency
- 150 mA Negative Charge Pump Driver for VGL
- 50 mA Positive Charge Pump for VGH
- LDO Controller for Logic Supply
- Gate Voltage Shaping for VGH
- Temperature Sensor Output
- TPS65167 - High Voltage Stress Test Vs
and VGH - TPS65167A - High Voltage Stress Test Vs only
- Adjustable Sequencing
- Gate Drive Signal for Isolation Switch
- Short-Circuit Protection
- Internal Soft-start
- Thermal Shutdown
- Available in 6 × 6 mm 40 Pin QFN Package
- APPLICATIONS
- LCD TV Panel
- LCD Monitor
The TPS65167 offers a compact power supply solution to provide all voltages required by a LCD panel for large size monitor and TV panel applications running from a 12-V supply rail.
The device generates all 3 voltage rails for the TFT LCD bias (Vs, VGL and VGH). In addition to that it includes a step-down converter and a LDO controller to provide two logic voltage rails. The device incorporates a high voltage switch that can be controlled by a logic signal from the external timing controller (TCON). This function allows gate voltage shaping for VGH. The device also features a high voltage stress test where the output voltage of VGH is set to typically 30 V and the output voltage of Vs is programmable to any higher voltage. The high voltage stress test is enabled by pulling the HVS pin high. The device consists of a boost converter to provide the source voltage Vs operating at a fixed switching frequency of 750 kHz. A fully integrated positive charge pump, switching automatically between doubler and tripler mode provides an adjustable regulated TFT gate on voltage VGH. A negative charge pump driver provides adjustable regulated output voltages VGL. To minimize external components the charge pumps for VGH and VGL operate at a fixed switching frequency of 1.5 MHz. The device includes safety features like overvoltage protection of the boost converter, short-circuit protection of VGH and VGL as well as thermal shutdown.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Compact LCD Bias Supply for TFT-LCD TV Panels datasheet (Rev. C) | 2008年 3月 10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 | ||
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 | ||
Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 2006年 9月 15日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 引腳 | 下載 |
---|---|---|
VQFN (RHA) | 40 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點