TPS4811-Q1
- AEC-Q100 qualified with the following results
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Functional Safety-Capable
- 3.5V to 80V input range (100V absolute maximum)
- Output reverse polarity protection down to –30V
- Integrated 12V charge pump with 100µA capacity
- Low 1.6µA shutdown current (EN/UVLO = Low)
- Strong pull up (3.7A) and pull down (4A) gate driver
- Drives external back-to-back N-channel MOSFETs
- Variant with integrated pre-charge switch driver (TPS48111Q1) to drive capacitive loads
- Two-level adjustable overcurrent protection (IWRN, ISCP) with adjustable circuit breaker timer (TMR) and fault flag output (FLT_I)
- Fast short-circuit protection: 1.2µs (TPS48111Q1), 4µs (TPS48110Q1)
- Accurate analog current monitor output (IMON): ±2% at 30mV VSNS
- Accurate, adjustable undervoltage lockout (UVLO) and overvoltage protection (OV): < ±2%
- Remote overtemperature sensing (DIODE) and protection with fault flag output (FLT_T)
The TPS4811x-Q1 family is a 100V smart high side driver with protection and diagnostics. With wide operating voltage range from 3.5V to 80V, the device is an excellent choice for 12V, 24V, and 48V system designs.
The device has a strong 3.7A peak source (PU) and 4A peak sink (PD) GATE driver that enables power switching using parallel FETs in high current system designs. Use INP as the gate driver control input.
The device has accurate current sensing (±2%) output (IMON) enabling system designs for energy management. The device has integrated two-level overcurrent protection with FLT_I output with complete adjustability of thresholds and response times. Auto-retry and latch-off fault behavior can be configured. The device features remote overtemperature protection with FLT_T output.
The TPS48111Q1 integrates a pre-charge driver (G) with control input (INP_G). This features enables designs that must drive large capacitive loads. In shutdown mode, the controller draws a total shutdown current of 1.6µA at 48V supply input.
The TPS4811x-Q1 is available in a 19-pin VSSOP package with a pin removed between adjacent high voltage and low voltage pins, providing 0.8mm clearance.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS4811Q1 100V Automotive Smart High-Side Driver With Protection and Diagnostics datasheet (Rev. E) | PDF | HTML | 2026/4/24 | ||
| 應用說明 | Basics of High-Side Switches and Controllers | PDF | HTML | 2026/3/31 | |||
| 應用說明 | Achieving Reverse Battery Protection Using TI High Side Switch Controllers (Rev. A) | PDF | HTML | 2024/11/21 | |||
| Application brief | Realizing Remote Temperature Sensing and Protection Using TI High-Side Switch Controllers | PDF | HTML | 2024/10/17 | |||
| 功能安全資訊 | TPS4811x-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2022/5/27 |
設計與開發
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SLURB09 — TPS4811-Q1 Design Calculator
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGX) | 19 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。