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TPS4816-Q1-CALC — TPS4816-Q1 design calculator
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TPS4816-Q1
Automotive 100V low IQ high-side driver with I2t, short circuit protection, and diagnostics
Data sheet
TPS4816-Q1
- AEC-Q100 automotive qualified for grade 1 temperature
- 3.5V to 95V input range (100V absolute maximum)
- Reverse input and output protection down to –60V
- Integrated 12V charge pump
- Low 1µA shutdown current (EN/UVLO = Low)
- Dual gate drive: GATE = 0.5A src/2A sink, G = 100µA src/0.39A sink
- Integrated pre-charge switch driver (INP_G) to drive capacitive loads
- Accurate I2t overcurrent protection (IOC) with adjustable circuit breaker timer (I2t)
- Accurate (±5%) and fast (5µs) short-circuit protection
- Accurate analog bi-directional current monitor output (IMON, I_DIR): ±2% at 30mV VSNS
- NTC based overtemperature sensing (TMP) and monitoring output (ITMPO)
- Fault indication (FLT) during short circuit fault, I2t, charge pump UVLO, OV, overtemperature
- TPS48160-Q1 (I2t enabled), TPS48161-Q1 (I2t disabled)
- Accurate (±2%) and adjustable undervoltage lockout (UVLO) and overvoltage protection (OV)
TPS4816-Q1 is a family of low IQ smart high side drivers with protection and diagnostics. With wide operating voltage range of 3.5V to 95V, (100V absolute-maximum rating) the device is suitable for 12V, 24V, and 48V automotive system designs.
The device has a strong 0.5A peak source and 2A peak sink GATE driver that enables power switching using parallel FETs in high current system designs. Use INP as the gate driver control input. MOSFET slew rate control (ON and OFF) is possible by placing external R-C components.
It also 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 1µA at 48V supply input.
The device has accurate bi-directional current sensing (±2%) output (IMON, I_DIR) with adjustable I2t based overcurrent and short circuit protection (±5%) using an external RSNS resistor and FLT indication. Auto-retry and latch-off fault behavior can be configured. The device also has NTC based temperature sensing (TMP) and monitoring output (ITMPO) output for overtemperature detection of external FETs.
TPS4816-Q1 is available in a 23-pin VQFN package.
Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS4816-Q1 100V Low IQ Automotive High-Side Switch Controller With Bi-directional IMON, I2t, OV, and Diagnostics datasheet | PDF | HTML | 27 May 2025 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGE) | 23 | Ultra Librarian |
Ordering & quality
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