TPS1HA08-Q1 Texas instruments

TPS1HA08-Q1

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TPS1HA08-Q1

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Описание

The device is a single-channel smart high-side switch intended for use with 12-V automotive systems. The device integrates robust protection and diagnostic features to ensure output port protection even during harmful events like short circuits. The device protects against faults through a reliable current limit, which, depending on device variant, is available at both 80 A and 20 A and can be configured to react to an overcurrent event by either instantly turning the switch off or by regulating the output current at the set point. The high current limit option allows for usage in loads that require large transient currents, while the low current limit option provides improved protection for loads that do not require high peak current.The also provides a high accuracy analog current sense that allows for improved diagnostics when driving varied load profiles. By reporting load current, device temperature, and supply voltage to a system MCU, the device enables predictive maintenance and load diagnostics that lengthen the system lifetime.The is available in a small 16-pin HTSSOP package which allows for reduced PCB footprint.

Single-channel smart high-side switch with 8-mΩ R_ON (T_J = 25°C)
Qualified for automotive applications:
- AEC Q-100 Qualified
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Withstands 40-V load dump
Functional safety capable
- Documentation available to aid functional safety system design
Improve reliability through selectable current limiting
- Current limit set-point at 20 A or 80 A
- Overcurrent response of current clamping or instant shutdown
Robust integrated output protection:
- Integrated thermal protection
- Protection against short to ground and battery
- Automatic switch-on during reverse battery
- Automatic shut off if loss of battery and ground occurs
- Integrated output clamp to demagnetize inductive loads
- Configurable fault handling
Analog sense output can be configured to accurately measure:
- Load current
- Supply voltage
- Device temperature
Provides FLT indication back to MCU
- Detection of open load and short-to-battery

Number of channels	1
Operating voltage (max) (V)	18
Operating voltage (min) (V)	8
Ron (typ) (mΩ)	8
Imax (A)	10
Current limit (min) (A)	20
Current limit (max) (A)	80
Current limit type	Adjustable
TI functional safety category	Functional Safety-Capable
Current sense accuracy	+13%/-5% @ 1A
FET	Internal
Features	Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out
Operating temperature range (°C)	-40 to 125
Function	Automotive load dump compatibility, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown
Rating	Automotive