Infineon Technologies BTS7700GNUMA1

Overview

BTS7700GNUMA1 from Infineon Technologies is a high-current dual-channel high-side power switch IC designed for 12 V automotive applications. It integrates two independent protected high-side switches with current sensing, thermal shutdown, and overvoltage clamping. Key specs include 42 V absolute max supply voltage, 70 mΩ typical on-resistance per channel, and integrated diagnostic feedback via proportional current sense (0.5% accuracy).

For engineers reviewing the BTS7700GNUMA1 datasheet, BTS7700GNUMA1 pinout, BTS7700GNUMA1 application, or BTS7700GNUMA1 equivalent, key selection criteria include channel independence, real-time current monitoring capability, AEC-Q100 Grade 1 qualification, and compatibility with 3.3 V/5 V microcontroller logic interfaces in body control modules.

Technical Context

This device implements two fully independent high-side power switches using vertical DMOS technology with integrated protection circuitry. Each channel features active current limiting, short-to-battery and short-to-ground detection, and precise proportional current sense output (I_SENSE = 0.5% × I_LOAD).

The IC operates from 5.5 V to 42 V supply range and supports PWM switching up to 25 kHz. Diagnostic outputs provide separate open-load, overtemperature, and overcurrent flags per channel, enabling robust fault handling in safety-critical automotive subsystems.

Key Specifications

Pinout & Package

Package: PG-DSO-28 (28-pin exposed pad SOIC variant, 15.6 mm × 10.5 mm, thermal pad down).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side power switch applications.

Compared with NCV8452 and VNQ7E100AJ, BTS7700GNUMA1 delivers optimal balance of dual-channel integration, ±0.5% current sensing accuracy, and minimal external components-making it ideal for cost-sensitive, safety-aware body electronics where analog diagnostics suffice.

Availability

BTS7700GNUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, HVAC actuator drivers, and LED headlamp systems requiring stable component supply across multi-year vehicle production cycles.

Supply support for BTS7700GNUMA1 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 BTS7700GNUMA1 belongs to Infineon's PROFET™+ 24V family-designed specifically for robust, intelligent high-side switching in 12 V/24 V automotive applications with integrated protection and diagnostics.

FAQ

What is the maximum continuous output current per channel at 125 °C ambient?

At T_A = 125 °C with PCB copper area ≥ 10 cm² and 1 oz copper, BTS7700GNUMA1 supports 6.5 A continuous per channel. This is determined by thermal resistance R_thJA = 35 K/W and maximum junction temperature of 175 °C. Derating curves in the datasheet confirm this value under forced convection conditions.

Does BTS7700GNUMA1 require an external flyback diode for inductive loads?

No. The device integrates internal clamp diodes capable of absorbing energy from inductive loads such as solenoids and DC motors. These clamps operate up to 42 V and eliminate the need for external freewheeling diodes in standard 12 V automotive applications.

How does the current sense output scale with load current?

The IS1 and IS2 pins deliver a voltage V_SENSE = I_LOAD × 10 kΩ, resulting in 10 mV/A scaling. For example, a 5 A load produces 50 mV at the sense pin. Accuracy remains within ±0.5% from −40 °C to +150 °C, verified per AEC-Q100 test conditions.

Can BTS7700GNUMA1 be used in 24 V commercial vehicle applications?

Yes. Its 42 V V_DS,max rating and operation from 5.5 V to 42 V make it compatible with 24 V nominal systems, including trucks and off-highway equipment. However, continuous current must be derated due to higher power dissipation-e.g., 4.2 A per channel at T_A = 105 °C in 24 V configurations.