Calculation tool
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TPS1211-Q1
Automotive, 3.5V to 45V high-side driver with protection and diagnostics
Data sheet
TPS1211-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 40V input range (45V absolute maximum)
- Output reverse polarity protection down to –30V
- Integrated 12V charge pump with 100µA capacity
- Low 0.9µA shutdown current (EN/UVLO = Low)
- Strong pullup (3.7A) and pulldown (4A) gate driver
- Drives external back-to-back N-channel MOSFETs
- Variant with integrated pre-charge switch driver (TPS12111-Q1) to drive capacitive loads
- Two-level adjustable overcurrent protection (IWRN, ISCP) with adjustable response time (TMR) and fault flag output (FLT_I)
- Fast short-circuit protection: 1.2µs (TPS12111-Q1, TPS12112-Q1), 4µs (TPS12110-Q1)
- 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)
- Pin-to-pin compatible with TPS4811-Q1
The TPS1211-Q1 family is a 45V, smart high-side driver with protection and diagnostics. With wide operating voltage range of 3.5V–40V, the device is suitable for 12V 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% at 30mV) 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 time. Auto-retry and latch-off fault behavior can be configured. The device features remote overtemperature protection with FLT_T output.
The TPS12111-Q1 integrates a pre-charge driver (G) with control input (INP_G). This features enables designs that must drive large capacitive loads. In shutdown mode (EN/UVLO < 0.3V), the controller draws a total shutdown current of 0.9µA (typical).
The TPS1211-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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Technical documentation
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View all 8 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS1211-Q1 45V Automotive Smart High-Side Driver With Protection and Diagnostics datasheet (Rev. E) | PDF | HTML | 08 Apr 2025 |
| Application note | Achieving Reverse Battery Protection Using TI High Side Switch Controllers (Rev. A) | PDF | HTML | 21 Nov 2024 | |
| Analog Design Journal | 為汽車區域式配電系統的車外電容負載供電 | PDF | HTML | 16 Sep 2024 | |
| Analog Design Journal | 오토모티브 영역 기반 전력 분배 시스템의 오프보드 정전식 부하에 전원 공급 | PDF | HTML | 16 Sep 2024 | |
| Analog Design Journal | Powering an offboard capacitive load in automotive zone-based power distribution systems | PDF | HTML | 23 Aug 2024 | |
| EVM User's guide | TPS1211-Q1 Smart High-Side Driver Evaluation Module | PDF | HTML | 23 Feb 2023 | |
| Certificate | TPS1211Q1EVM EU RoHS Declaration of Conformity (DoC) | 04 Nov 2022 | ||
| Functional safety information | TPS1211x-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 14 Jul 2022 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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Calculation tool
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Supported products & hardware
Products
High-side switch controllers
Simulation tool
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSSOP (DGX) | 19 | Ultra Librarian |
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