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Product Detailed Parameters
- Description：IC MOTOR DRIVER BLDC 20V 28SOIC
- Series：-
- Mfr：LSI/CSI
- Package：Tube
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Controller - Commutation, Direction Management
- Output Configuration：Half Bridge (6)
- Interface：PWM
- Technology：CMOS
- Step Resolution：-
- Applications：General Purpose
- Current - Output：75mA
- Voltage - Supply：20V
- Voltage - Load：-
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Grade：-
- Qualification：-
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Overview
The LS7561F-S is a monolithic CMOS integrated circuit designed for brushless DC motor control applications. It supports both open-loop and closed-loop configurations for three or four-phase motors. The device features a built-in decoder, tachometer output, error amplifier, and PWM speed comparator with full accessibility. It operates at a maximum voltage of 20V and provides an output current of 75mA. The component is housed in a 28-SOIC surface-mount package.
Feature Summary
- Supports open-loop and closed-loop control for three or four-phase BLDC motors
- Integrates a decoder, tachometer output, error amplifier, and PWM speed comparator
- Provides full accessibility to internal control functions
Applications
- Three-phase brushless DC motor control systems
- Four-phase brushless DC motor control systems
- Closed-loop motor positioning applications
- Open-loop motor speed regulation
Procurement Notes
Verify the specific suffix 'S' against the manufacturer's official datasheet to confirm RoHS3 compliance and package dimensions. Ensure the ordering part number matches the exact electrical specifications required for your design, as suffixes may indicate variations in temperature range or packaging format that affect compatibility.
Selection Notes
Select this component when designing systems requiring integrated BLDC control for three or four-phase motors. It is suitable for applications needing accessible error amplifiers and PWM comparators for precise speed regulation. Consider the 20V operating limit and 75mA output current capability when matching the motor specifications to ensure proper performance within the device's operational envelope.
Part Context
The LS7561F-S belongs to the LS7560F/LS7561F family from LSI/CSI, which are specialized ICs for brushless DC motor management. This family enables efficient control strategies for multi-phase motors, integrating essential decoding and feedback mechanisms into a single chip to simplify system architecture and reduce external component count.
Replacement Considerations
The LS7560F is a related part within the same family offering similar control capabilities. Verify pinout compatibility and specific electrical parameter differences before substitution.
