Texas Instruments TPS1200-Q1 Smart High Side Driver
Texas Instruments TPS1200-Q1 Smart High Side Driver is a 45V low IQ device that can withstand and protect the loads from negative supply voltages down to -40V. This driver includes a (2A) gate drive that enables power switching using parallel MOSFETs in high-current system designs. The TPS1200-Q1 driver features a low 1.5µA shutdown current (EN/UVLO = Low) and diagnosis of the internal short circuit comparator using external control on SCP_TEST input. This driver also features a quiescent current of 43µA (typical), enabling always ON system designs. The TPS1200-Q1 driver is AEC-Q100 qualified for automotive applications.
The TPS1200-Q1 driver offers protection functions such as adjustable input Undervoltage Lockout (UVLO), Overvoltage protection (OV), and adjustable short circuit protection. This driver is available in a 19-pin VSSOP package (5.1mm x 3mm). The TPS1200-Q1 driver is used in applications such as automotive 12V BMS, DC-DC converters, and power tools.
Features
- AEC-Q100 automotive qualified for automotive applications:
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- 3.5V to 40V input voltage range (45V absolute maximum)
- Reverse input protection down to -40V
- Integrated 11V charge pump
- Low quiescent current, 43µA in operation
- Low 1.5µA shutdown current (EN/UVLO = Low)
- Strong gate driver (2A source and sink)
- Adjustable short circuit protection (ISCP) using external Rsense or MOSFET VDS sensing with adjustable delay (TMR)
- High or low-side current sense configuration (CS_SEL)
- Fault indication (FLT) during short-circuit fault, input under voltage, and short-circuit comparator diagnosis (SCP_TEST)
- Fault indication (FLT_GD) for gate drive UVLO
- Adjustable input Undervoltage Lockout (UVLO) and Overvoltage protection (OV)
- Available in a 19-pin VSSOP package (5.1mm x 3mm)
Applications
- Automotive 12V BMS
- DC-DC converters
- Power tools
Functional Block Diagram
Application Circuit with External Supply to BST
Published: 2025-01-15
| Updated: 2025-03-09