ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：MC642 - PWM FAN MOTOR SPEED CONT
- Series：*
- Mfr：Motorola
- Package：Bulk
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Download product information
Overview
The MC642P is a brush DC motor controller manufactured by Motorola, designed for PWM fan and motor speed control applications. It operates within a supply voltage range of up to 5.5V and functions reliably across a temperature range of 0°C to 75°C. The component is housed in an 8-pin PDIP package with a standard DIP footprint. It is classified as a power management integrated circuit (PMIC) and logic device, suitable for precise rotational speed regulation in cooling systems.
Feature Summary
- Provides pulse-width modulation (PWM) output for precise brush DC motor speed regulation
- Integrated design simplifies implementation in fan control circuits
- Operates within standard industrial temperature ranges for reliable performance
Applications
- PWM fan motor speed control systems
- Brush DC motor regulation in electronic equipment
- Thermal management units requiring variable speed fans
Procurement Notes
Verify the manufacturer origin, as the part is associated with both Motorola and onsemi/Rochester Electronics. Confirm the package type matches the required 8-pin DIP configuration. Check lifecycle status, as sources indicate varying availability between active and obsolete classifications. Ensure compatibility with existing 5.5V supply rails and thermal requirements before procurement.
Selection Notes
Select this component when a dedicated PWM controller for brush DC motors is required. It is suitable for applications needing simple, low-voltage speed control without complex external circuitry. Consider the PDIP8 package constraints for PCB layout. Verify that the operating temperature range meets the specific environmental conditions of the target assembly.
Part Context
The MC642 series belongs to Motorola's legacy line of power management and logic devices. The MC642P specifically denotes the plastic DIP variant of the MC642 brush DC motor controller. This family was widely used in computer and peripheral cooling solutions during the era of through-hole mounting standards.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with generic PWM motor controllers only if pin compatibility and electrical specifications are verified against official datasheets.
