Description

Key Features of the M57959L-01R

Galvanic Isolation: Like the M57962AL, it provides optical isolation (typically 2500 Vrms) between the input control circuit and the output power stage.

Integrated Functions: It includes essential functions like:

Undervoltage Lockout (UVLO): Protects the IGBT by preventing turn-on if the gate drive supply voltages are too low.

Short-Circuit Protection: However, this is typically implemented through an external desaturation detection circuit that feeds a signal back to the driver’s fault detection input. It does not have the fully integrated Vce(sat) monitoring of the M57962AL.

Wide Operating Voltage Range: The output side can typically operate with a positive supply (Vcc) of +15V to +18V and a negative supply (Vee) of -10V to -15V to ensure reliable turn-on and turn-off.

Pin Configuration (Typical)

The module is in a similar Single-In-Line (SIL) package. The pin functions are analogous but have a key difference related to the protection scheme.

Input Side (Control):

Pin 13, 14: Signal Input (In+, In-).

Pin 1, 2: Control Ground (GND1).

Output Side (Power – Connects to IGBT):

Pin 6, 7: Gate Drive Output (G).

Pin 8: Fault Detection Input / Alarm (ALM) or (FLT). This is a critical difference. Instead of a direct collector monitor (like the M57962AL’s “C” pin), this pin is often used as an input to receive a signal from an external protection circuit.

Pin 9, 10: Power Return / Emitter (E).

Pin 3, 4, 5: Positive Gate Supply Voltage (Vcc).

Pin 11, 12: Negative Gate Supply Voltage (Vee).

Crucial: The function of Pin 8 can vary. It is essential to consult the official M57959L datasheet to confirm if it is an input for an external fault signal or an output to indicate a fault status.
Typical Applications

The M57959L-01R is used in medium-power applications, such as:

Small to Medium Power Motor Drives

Power Supplies

Inverters for Appliances

Any application using IGBTs that do not require the very high peak current of the M57962 series.