Infineon Technologies BTS7960P

Overview

BTS7960P from Infineon Technologies is a fully integrated high-current PN half-bridge IC for automotive motor drive applications, combining one p-channel high-side MOSFET (7 mΩ), one n-channel low-side MOSFET (9 mΩ), and an integrated driver IC in a single P-TO-220-7 package. It delivers 43 A typical current limiting, supports PWM up to 25 kHz, and features logic-level inputs, adjustable slew rate, dead-time generation, and real-time current sense with status flag diagnosis.

For engineers reviewing the BTS7960P datasheet, BTS7960P pinout, BTS7960P application, or BTS7960P equivalent, key selection considerations include its charge-pump-free p-channel high-side architecture, integrated overtemperature latching shutdown, overvoltage lockout, undervoltage shutdown, short-circuit protection, and compatibility with microcontroller-based motor control systems requiring robust fault diagnostics and EMI-optimized switching.

Technical Context

The BTS7960P implements a monolithic NovalithIC™ architecture with three die-HS p-MOSFET, LS n-MOSFET, and driver IC-mounted on a common leadframe using chip-on-chip and chip-by-chip technology. Its p-channel high-side eliminates external charge pump circuitry, reducing board area and EMI emissions.

Control logic includes dual-input interface (IN/INH), programmable slew rate via external resistor at SR pin, automatic dead-time insertion between HS/LS transitions, and analog current-sense output (IS) proportional to load current. Protection functions operate autonomously without host intervention: overtemperature latch, overvoltage lockout (>45 V), undervoltage shutdown (<5.5 V), and switched-mode current limitation.

Key Specifications

Pinout & Package

Package: P-TO-220-7 (7-pin through-hole, isolated tab, thermally enhanced). Pin 4 and Pin 8 are internally connected to the power output node (OUT); Pin 7 is VS (supply input); Pin 1 is GND; Pin 2 is IN (logic input); Pin 3 is INH (inhibit); Pin 5 is SR (slew rate adjust); Pin 6 is IS (current sense/diagnostic output).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current half-bridge motor drive applications.

Compared with BTS7960B and L99H02, the BTS7960P offers the lowest combined R_DS(on), highest current limit, and simplest analog diagnostic interface - making it optimal for cost-sensitive, thermally demanding, and MCU-resource-limited motor control applications.

Availability

BTS7960P is available at Aetrix Electronics and suitable for automotive power seat modules, industrial conveyor drives, electric power steering subassemblies, and medical infusion pump actuation requiring stable component supply across extended product lifecycles.

Supply support for BTS7960P 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 industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q100 standards.

The BTS7960P belongs to Infineon's NovalithIC™ family - engineered specifically for protected, high-current DC motor drives in automotive and industrial environments where integration, reliability, and autonomous fault handling are mandatory.

FAQ

What is the thermal resistance R_th(j-a) for BTS7960P in P-TO-220-7 package?

The datasheet specifies R_th(j-a) = 60 K/W for the P-TO-220-7 variant under standard JEDEC test conditions (1-inch² 2-oz copper pad). This value assumes no heatsink; actual thermal performance improves significantly with bolted aluminum heatsink (R_th(j-hs) ≈ 1.5 K/W) and proper thermal interface material.

Can BTS7960P drive inductive loads without external freewheeling diodes?

Yes - the device integrates body diodes in both MOSFETs and supports active freewheeling via internal control logic. When IN = low and INH = high, the low-side MOSFET conducts during off-time, eliminating need for external diodes while maintaining low-loss recirculation.

How does the current sense output (IS pin) scale with load current?

The IS pin delivers a proportional analog voltage: V_IS = 0.25 × I_LOAD (typ.) referenced to GND, with ±10% gain tolerance. At 40 A load, expect ~10 V output; saturation occurs above 43 A due to current limiting activation, causing IS to drop to ~0.5 V as fault flag asserts.

Is dead time fixed or configurable in BTS7960P?

Dead time is fixed and internally generated - approximately 1.2 µs minimum - to prevent shoot-through during HS/LS transition. It is not user-adjustable; timing is embedded in the driver IC logic and independent of external components or supply voltage within operating range.