TI TPS48111LQDGXRQ1

The TPS4811x-Q1 family is a 100-V smart high side driver with protection and diagnostics. With wide operating voltage range of 3.5 V - 80 V, the device is suitable for 12-V, 24-V and 48-V system designs. It has a strong 3.7-A peak source (PU) and 4-A 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 time. Auto-retry and latch-off fault behavior can be configured. The device features remote overtemperature protection with FLT_T output. The TPS48111-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, the controller draws a total shutdown current of 1.6 μA at 48-V 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 0.8 - mm clearance.

• AEC-Q100 qualified with the following results
  • Device temperature grade 1: -40°C to +125°C ambient operating temperature range
• Functional Safety-Capable Documentation available to aid functional safety system design
• 3.5-V to 80-V input range (100-V absolute maximum)
• Output reverse polarity protection down to -30 V
• Integrated 12-V charge pump with 100-μA capacity
• Low 1.6-μA shutdown current (EN/UVLO = Low)
• Strong pull up (3.7 A) and pull down (4 A) gate driver
• Drives external back-to-back N-Channel MOSFETs
• Variant with Integrated pre-charge switch driver (TPS48111-Q1) 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: 1.2 μs (TPS48111-Q1), 4 μs (TPS48110-Q1)
• Accurate analog current monitor output (IMON) – ±2 % at 30 mV VSNS
• Accurate, Adjustable undervoltage lockout (UVLO) and overvoltage protection (OV) – <±2 %
• Remote overtemperature sensing (DIODE) and protection with fault flag output (FLT_T)

• Power distribution box
• Body control module
• DC/DC converter
• Battery management system