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Product Detailed Parameters
- Description：IC LED DRIVER OFFL PWM 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：15V
- Voltage - Supply (Max)：450V
- Voltage - Output：7.5V
- Current - Output / Channel：-
- Frequency：1.2kHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The HV9801ALG-G is a single-output LED lighting driver IC manufactured by Microchip Technology, housed in an SOIC-8 package. It utilizes a Buck topology with a fixed output voltage of 7.5 V and supports an input voltage range from 15 V to 450 V. The device delivers an output current of 165 mA at a switching frequency of 1.2 kHz. It operates within a temperature range of -40°C to +150°C, features PWM dimming capability, and includes short circuit and thermal protection mechanisms.
Feature Summary
- Supports wide input voltage ranges suitable for offline applications
- Integrates PWM dimming functionality for brightness control
- Includes built-in short circuit and thermal protection
Applications
- LED lighting systems requiring switchable dimming
- Offline Buck converter designs for LED drivers
- General-purpose LED illumination circuits
Procurement Notes
Verify the specific suffix 'LG' against official Microchip documentation to confirm package type and RoHS compliance status. Ensure the ordering part number matches the exact datasheet revision required for your design. Confirm availability through authorized distributors as stock levels fluctuate. Cross-reference the manufacturer part number with any legacy equivalents if migrating existing designs.
Selection Notes
Select this component for applications requiring a simple Buck topology with high input voltage tolerance. The fixed 7.5 V output limits flexibility compared to adjustable variants. Consider the low switching frequency of 1.2 kHz when designing passive components. Verify that the SOIC-8 package fits the PCB layout constraints and thermal requirements of the target enclosure.
Part Context
This device belongs to the HV9801 family of LED drivers from Microchip Technology. It is designed specifically for AC/DC offline applications using a step-down configuration. The series focuses on providing reliable constant current or voltage regulation for LED loads with integrated safety features.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult Microchip's official cross-reference tools or datasheets for potential alternatives.
