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Product Detailed Parameters
- Description：IC LED DRV OFFL TRIAC TO92-3
- Series：-
- Mfr：Microchip Technology
- Package：Bag
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：20V
- Voltage - Supply (Max)：400V
- Voltage - Output：-
- Current - Output / Channel：50mA
- Frequency：-
- Dimming：Triac
- Applications：Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The HV9922N3-G is a single-channel, switch-mode LED lamp driver IC manufactured by Microchip Technology. It utilizes a Buck topology to regulate constant current for LED loads. The device operates within an input voltage range of 20 V to 400 V and supports an output current of 50 mA. It functions at a fixed switching frequency of 170 kHz with adjustable output voltage capabilities. The component is housed in a TO-92-3 package designed for through-hole mounting. It ensures reliable operation across a temperature range of -40°C to +85°C, with a maximum power dissipation of 740 mW and a typical supply current of 350 µA.
Feature Summary
- Provides constant current regulation for LED applications using a buck converter topology.
- Operates with high input voltage tolerance up to 400 V.
- Features low quiescent current consumption for energy efficiency.
- Designed for robust performance in industrial and commercial lighting environments.
Applications
- LED lamp drivers
- General solid-state lighting systems
- Commercial lighting fixtures
Procurement Notes
Verify the specific suffix 'N3' confirms the TO-92-3 through-hole package variant, as other suffixes like 'N8' indicate different packaging such as SOT-89. Confirm RoHS compliance status via the manufacturer's official documentation before integration. Ensure the selected component matches the required 50 mA output current specification for the target LED load design.
Selection Notes
Select this component when a through-hole solution is required for high-voltage LED driving applications. The TO-92-3 package facilitates easy prototyping and manual assembly compared to surface-mount alternatives. Consider the 170 kHz switching frequency for EMI management and the 50 mA output limit to ensure compatibility with the intended LED string configuration without exceeding thermal limits.
Part Context
This part belongs to the HV9922 family of 3-pin switch-mode LED lamp driver ICs from Microchip Technology. The family includes variants with different packaging options, such as the HV9922N8-G in an SOT-89 package. These devices are engineered specifically for cost-effective and compact LED lighting solutions requiring simple external component counts.
Replacement Considerations
The HV9922N8-G serves as a functional substitute offering identical electrical specifications but in an SOT-89 surface-mount package. Designers must adjust PCB layout and footprint requirements when transitioning between the TO-92-3 and SOT-89 form factors while maintaining circuit functionality.
FAQ
What is the switching frequency of the HV9922N3-G?
The HV9922N3-G operates at a fixed switching frequency of 170 kHz.
Does the HV9922N3-G support dimming?
The provided documentation does not specify integrated dimming control features for this specific part number; it is primarily described as a constant current driver.
