SS6952T-ET-TP

SS6952T provides a high-current single-channel integrated motor drive solution for motor integration applications. It features one H-bridge driver capable of delivering a maximum peak current of 7A, suitable for driving one brushed DC motor, solenoid, or other inductive loads. The power output stage consists of an N-type power MOSFET H-bridge circuit with integrated rectification and current limiting circuitry. A simple parallel digital control interface supports selectable decay modes: fast decay, slow decay, and mixed decay. A low-power sleep mode is provided to shut down internal circuitry, achieving very low quiescent current. This sleep mode is activated by setting the nSLEEP pin. Internal protection features include overcurrent protection, short-circuit protection, UVLO, and over-temperature protection, with a fault output pin nFAULT provided. An eTSSOP28 package with an exposed pad is available for improved thermal performance. The product is lead-free with 100% matte tin-plated leadframe. SS6952T is an integrated motor driver solution for bipolar stepper motors or brushed DC motors. It integrates an NMOS H-bridge, current sensing, regulation circuitry, and comprehensive fault detection. A simple PWM interface enables easy connection to an external digital controller with minimal interface resources. The fault indicator pin (nFAULT) provides a flag when the device enters a fault condition. Winding current control allows an external controller to adjust the current delivered to the motor. Current regulation is highly configurable, with three selectable decay modes based on application requirements: fast, slow, and mixed decay. Two-bit current level control allows switching between four different current levels. A low-power sleep mode enables system power savings when the motor is not in operation.

Applications

• Printers
• Office automation equipment
• Robotic industrial sewing machines

Key features

• Single-channel H-bridge current-control motor driver – Single brushed DC motor – One stepper motor single phase – PWM control interface
• Current control selectable at fixed frequency – 2-bit current control providing 4 current steps
• Low on-resistance MOSFETs – 7.0A maximum drive current at 24V, Ta = 25°C (with adequate heat dissipation) – RDS(HS + LS) of 150mΩ (typical HS + LS) at 24V, Ta = 25°C
• Maximum supply voltage 50V
• Low-current sleep mode
• Built-in 3.3V reference voltage
• Surface-mount package with heatsink pad
• Protection features – Overcurrent Protection (OCP) – Thermal Shutdown (TSD) – Undervoltage Lockout (UVLO) – Fault indicator pin (nFAULT)