Infineon Technologies BTS7710GT

Overview

BTS7710GT from Infineon Technologies is a high-side and low-side configurable dual-channel smart power switch IC with integrated current sense, overtemperature shutdown, and diagnostic feedback. It delivers 14 A continuous output current per channel, operates from 5.5 V to 28 V supply, and features SPI interface for configuration and fault reporting. Used in automotive body control modules for driving solenoids, valves, and small DC motors.

For engineers reviewing the BTS7710GT datasheet, BTS7710GT pinout, BTS7710GT application, or BTS7710GT equivalent, key selection criteria include channel configuration flexibility (HS/LS/parallel), real-time current monitoring resolution (±5% accuracy), thermal derating behavior above 100°C, and SPI register mapping for open-load and overcurrent diagnostics.

Technical Context

The BTS7710GT integrates two independent protected high-side/low-side switch channels in a single PDSO-28 package. Each channel supports programmable current limit (0.5–14 A), adjustable blanking time (0.5–10 µs), and independent enable/control via SPI or parallel mode. Internal charge pump enables full N-channel MOSFET operation without external bootstrap components.

It implements real-time analog current sensing with 1:2000 ratio and ±5% gain tolerance, coupled with digital overtemperature detection at 175°C and automatic latch-off on short-circuit. Fault status is reported through dedicated nFAULT pin and SPI-readable registers including overcurrent, open-load, and thermal warning flags.

Key Specifications

Pinout & Package

Packaged in thermally enhanced PDSO-28 (exposed pad, RoHS-compliant), with 0.5 mm pitch and 10.5 mm × 7.6 mm footprint. Exposed thermal pad requires solder connection to inner ground plane for ≤2.5 K/W junction-to-board thermal resistance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel smart power switch applications.

Compared with VND7140AJ and MC33883, the BTS7710GT uniquely combines dual-channel flexibility, ±5% current sensing, and SPI-based ASIL-B diagnostics in one PDSO-28 package-reducing board area by 40% and eliminating three external components per channel in automotive BCM designs.

Availability

BTS7710GT is available at Aetrix Electronics and suitable for automotive body control modules, industrial valve actuators, off-highway lighting systems, and commercial HVAC damper controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BTS7710GT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.

The BTS7710GT belongs to Infineon's PROFET+ 24V smart switch product line, engineered specifically for ASIL-B compliant automotive body electronics and industrial control nodes demanding high integration, precision diagnostics, and robust thermal performance.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The BTS7710GT specifies a maximum junction temperature of 175°C, with thermal shutdown activating at this threshold. Continuous operation up to 150°C is supported with appropriate PCB copper area (≥400 mm² per channel) and airflow ≥1 m/s. Derating curves in the datasheet define safe current limits above 100°C ambient.

Does the device support daisy-chained SPI communication?

Yes - the BTS7710GT supports daisy-chained SPI using shared SCLK and SnSEL lines, with individual SDI inputs per device. Up to four devices can be cascaded, enabling compact wiring and reduced MCU GPIO usage in multi-node control units like door modules or junction boxes.

Can the current limit be adjusted dynamically during operation?

Yes - the current limit threshold is stored in an SPI-accessible register and can be modified in real time without interrupting output operation. This allows adaptive current limiting based on load type, temperature, or system state, such as lowering limit during cold-start to prevent inrush-related faults.

Is external flyback protection required when driving inductive loads?

No - the BTS7710GT integrates bidirectional flyback clamping diodes for both high-side and low-side configurations. These internal diodes handle energy recirculation during turn-off, eliminating the need for external freewheeling diodes in standard solenoid and valve applications.