Infineon BTS428L2ATMA1 Smart High-Side Power Switch 1 Channel 16V
Infineon BTS428L2ATMA1 one-channel smart high-side power switch, 16 V, 7 A nominal load current, for grounded loads in 5 V, 12 V and 24 V systems.
The Infineon BTS428L2ATMA1 Smart High-Side Power Switch is a one-channel device with a 7 A nominal load current and a 16 V rating. Built using Smart SIPMOS technology, it provides a highly integrated solution for switching power to grounded loads.
Overview
The switch features an N-channel vertical power MOSFET, a built-in charge pump, and a ground-referenced CMOS-compatible input with diagnostic feedback. It is designed for microcontroller (µC) compatible control and is suited to switching grounded loads in 5 V, 12 V, and 24 V systems. It can drive resistive, inductive, and capacitive loads, and is particularly suited to loads with high inrush currents, such as lamps. It can be used as an alternative to bulkier electromechanical relays, fuses, and discrete circuits.
Key Features
- Very low standby current
- 7 A nominal load current with 17 A current limitation
- Improved electromagnetic compatibility
- Fast demagnetisation of inductive loads
- Stable operation during undervoltage conditions across a wide operating voltage range
- Logic ground independent from load ground
Protection and Diagnostics
The device includes short circuit, overload, and thermal shutdown protection, along with overvoltage protection and reverse battery protection, both used with an external resistor. Additional safeguards include loss of ground and loss of Vbb protection, and electrostatic discharge (ESD) protection. Diagnostic feedback is provided via an open-drain output, which is capable of open-load detection in the ON state and signals a thermal shutdown event.
Dimensions and Weight
The product measures 3.3 (width), 1.5 (depth), and 4.3 (height), and weighs 2.268 g.
- Switching grounded loads in 5 V, 12 V, and 24 V systems
- Switching resistive, inductive, and capacitive loads
- Switching lamps and other loads with high inrush currents
- Microcontroller (µC) compatible power switching
- Channels: 1
- Voltage Rating: 16 V
- Nominal Load Current: 7 A
- Current Limitation: 17 A
- Special Feature: Smart SIPMOS technology
- Special Feature: Open-drain diagnostic feedback with open-load detection in the ON state
- Special Feature: Overvoltage and reverse battery protection (external resistor required)
- Special Feature: Loss of ground and loss of Vbb protection
- Special Feature: Electrostatic discharge (ESD) protection
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 2.268 g
Documents
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