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R7732RGE
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Product Detailed Parameters
- Description：IC POWER MANAGEMENT
- Series：-
- Mfr：Richtek USA Inc.
- Package：Bulk
- Output Type：PWM
- Function：Step-Up, Step-Down
- Output Configuration：Positive
- Topology：Flyback
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：12V ~ 25V
- Frequency - Switching：65kHz
- Duty Cycle (Max)：75%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-23-6
- Grade：-
- Qualification：-
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Overview
The R7732RGE is an offline flyback switching controller manufactured by Richtek USA Inc. It operates at a fixed switching frequency of 65kHz and supports a maximum duty cycle of 75%. The device features internal startup circuitry requiring a 14V start voltage and accepts a supply voltage range of 12V to 25V. It is housed in a SOT-23-6 surface-mount package. The component provides comprehensive protection against current limits, overloads, overheating, and overvoltage conditions. It is rated for operation within an ambient temperature range of -40°C to 85°C.
Feature Summary
- Integrated flyback controller topology for isolated power conversion
- Built-in hardware protection mechanisms for system safety
- Fixed frequency operation for simplified filter design
Applications
- Offline AC-DC power supplies
- Flyback converter designs
- General purpose isolated power regulation
Procurement Notes
Verify the specific suffix 'RGE' against the manufacturer's official datasheet to confirm pinout and electrical characteristics. Confirm RoHS compliance status as indicated in the latest environmental declaration. Check for End-of-Life (EOL) notifications or last-time buy dates from authorized distributors. Ensure the source document matches the exact part number to avoid substitution errors with similar variants.
Selection Notes
Select this component for applications requiring a simple, cost-effective offline flyback solution. The fixed 65kHz frequency reduces electromagnetic interference filtering requirements compared to higher-frequency alternatives. Verify that the required output isolation and power levels align with the controller's capabilities. Ensure the input voltage range fits within the 12V to 25V Vcc specification during startup and operation.
Part Context
The R7732 series belongs to Richtek's portfolio of offline switching controllers designed for low-power isolated applications. These devices typically integrate the control logic necessary for managing transformer-based topologies without requiring external complex driver circuits. The R7732 variant specifically targets standard flyback configurations common in consumer and industrial adapters.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's PCN or replacement guide for verified cross-references.
