TPS22919-Q1
TPS22919-Q1 is Self-Protected Load Switch manufactured by Texas Instruments.
Features
- 1 Qualified for automotive applications
- AEC-Q100 Qualified:
- Device temperature grade 1:
- 40°C to 125°C ambient operating temperature range
- Input operating voltage range (VIN): 1.6 V to 5.5 V
- Maximum continuous current (IMAX): 1.5 A
- On-Resistance (RON):
- 5-V VIN: 89 mΩ (typical)
- 3.6-V VIN: 90 mΩ (typical)
- 1.8-V VIN: 105 mΩ (typical)
- Output short protection (ISC): 3 A (typical)
- Low power consumption:
- ON state (IQ): 8 µA (typical)
- OFF state (ISD): 2 n A (typical)
- Smart ON pin pull down (RPD):
- ON ≥ VIH (ION): 100 n A (maximum)
- ON ≤ VIL (RPD): 530 kΩ (typical)
- Slow Turn ON timing to limit inrush current (t ON):
- 5.0 V Turn ON time (t ON):
1.95 ms at 3.2 m V/μs
- 3.6 V Turn ON time (t ON): 1.75 ms at 2.7 m V/μs
- 1.8 V Turn ON time (t ON): 1.5 ms at 1.8 m V/μs
- Adjustable output discharge and fall time:
- Internal QOD resistance = 24 Ω (typical)
2 Applications
- Infotainment and cluster head unit
- Automotive cluster display
- ADAS Surround view system ECU
- Body control module and gateway
3 Description
The TPS22919-Q1 device is a small, single channel load switch with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.5 A.
The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is plete. Once the pin is deliberately driven High (>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss.
The TPS22919-Q1 load switch is also self-protected, meaning that it will protect itself from short circuit events on the output of the device. It also has thermal shutdown to prevent any damage from overheating.
TPS22919-Q1 is available in a standard SC-70 package characterized for operation over a junction temperature range of...
