Infineon Technologies TLE52052SAKSA1

Overview

TLE52052SAKSA1 from Infineon is a monolithic power H-bridge IC for bidirectional DC motor control, featuring DMOS output stages, integrated freewheeling diodes, TTL/CMOS-compatible dual-input logic, and real-time fault diagnosis via open-drain EF pin. It delivers 5 A continuous / 6 A peak current per channel, supports 40 V supply, exhibits 200 mΩ typical R_DS(ON) per switch at 25 °C, and operates across −40 °C to 150 °C junction temperature - deployed in automotive seat/mirror actuators and industrial valve drivers.

For engineers reviewing the TLE52052SAKSA1 datasheet, TLE52052SAKSA1 pinout, TLE52052SAKSA1 application, or TLE52052SAKSA1 equivalent, key selection criteria include its dual-channel short-circuit protection with 50 µs fault response, undervoltage lockout thresholds (V_{S_ON}/V_{S_OFF}), open-load detection using internal 10 kΩ pull-up/pull-down resistors, and thermal shutdown hysteresis at 150 °C.

Technical Context

The device integrates bipolar/CMOS control logic and DMOS power transistors on a single SPT® die, enabling precise H-bridge switching without external flyback components. Its Schmitt-trigger inputs provide noise immunity, while independent diagnosis circuits monitor each output for short-to-ground, short-to-VS, overload (I_SDL trippoint), and open-load conditions.

Operation modes - forward (IN1=L, IN2=H), reverse (IN1=H, IN2=L), brake (IN1=H, IN2=H), and high-impedance (IN1=L, IN2=L) - are implemented via complementary gate drive with crossover-current prevention. Fault detection sets EF low after 50 µs delay and disables all outputs; toggling inputs resets EF unless OUT1–OUT2 short persists.

Key Specifications

Pinout & Package

Package: PG-TO220-7-11 (thermally enhanced through-hole power package with tab-connected GND).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar H-bridge motor driver applications.

Compared with VNH2SP30-E and BTS7960B, TLE52052SAKSA1 uniquely combines dual-channel integration, embedded diagnostics (EF flag + open-load detection), and thermally optimized TO220 packaging - making it optimal for space-constrained, safety-aware automotive and industrial motion control where reliability and fault transparency are mandatory.

Availability

TLE52052SAKSA1 is available at Aetrix Electronics and suitable for automotive seat modules, industrial linear actuators, and medical infusion pump drives requiring stable component supply, AEC-Q100-compliant sourcing, and long-term lifecycle support.

Supply support for TLE52052SAKSA1 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 qualification infrastructure.

TLE52052SAKSA1 belongs to Infineon's PROFET+ family of smart power switches and H-bridges, designed specifically for robust, diagnostic-rich DC motor control in harsh automotive and industrial environments.

FAQ

What is the purpose of the S pin on TLE52052SAKSA1?

The S pin is a no-connect (NC) terminal in the TLE52052SAKSA1 variant. While other versions of the TLE5205-2 family use S for current-sense enable, this specific part number does not implement internal current sensing. Datasheet pin mapping confirms S has no internal connection and must be left unconnected or tied to GND per layout guidelines.

How does open-load detection work without external components?

Open-load detection uses internal 10 kΩ pull-up resistor on OUT1 and 10 kΩ pull-down on OUT2. When no motor is connected, OUT1 rises to V_S and OUT2 falls to GND, creating a differential voltage sensed by on-die comparators. A 50 µs delay triggers EF low, signaling open-circuit condition - no external resistors or ADC required.

Can TLE52052SAKSA1 drive inductive loads without external flyback diodes?

Yes. The device integrates bidirectional freewheeling diodes across both OUT1 and OUT2 outputs, enabling safe commutation of DC motors and solenoids. Only a bulk supply decoupling capacitor between V and GND is required - no external diodes needed for standard inductive load operation.

What happens to the error flag (EF) after a fault is cleared?

The EF pin remains low until the control inputs (IN1/IN2) are toggled to a non-fault state - for example, changing from brake (H,H) to forward (L,H). This input-based reset ensures intentional recovery and avoids spurious re-enabling. Persistent OUT1–OUT2 shorts are the only fault not cleared by input toggle.