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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 40QFN
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：SEPIC, Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：3
- Voltage - Supply (Min)：10V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：500kHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：40-VFQFN Exposed Pad
- Supplier Device Package：40-QFN (6x6)
- Grade：-
- Qualification：-
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Overview
The HV9989K6-G-M935 is a three-channel constant current LED driver IC designed for boost converter topologies. It operates in both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). The device supports sub-microsecond PWM dimming for precise brightness control. It features a supply voltage range of 10 V to 40 V and utilizes a 40-pin QFN package measuring 6x6x1.0 mm. The component is rated for an operating temperature range from 0°C to +85°C with a maximum power dissipation of 4 W.
Feature Summary
- Three-channel peak current mode PWM controller architecture
- Supports single switch boost converter configurations
- Enables sub-microsecond PWM dimming capabilities
- Operates in both CCM and DCM modes
Applications
- LED lighting systems requiring multi-channel drive
- Boost converter based LED drivers
- General illumination applications
Procurement Notes
Verify the complete part number including the M935 suffix, as it denotes specific packaging or tape-and-reel specifications distinct from the base HV9989K6-G. Confirm RoHS compliance status through official Microchip documentation prior to procurement. Ensure the supplier provides valid traceability for this specific variant.
Selection Notes
Select this component for designs requiring independent control of three LED channels via a single switching element. It is suitable for applications needing high-frequency PWM dimming resolution. Verify that the input voltage remains within the 10 V to 40 V range and that thermal management supports the 4 W dissipation limit in the QFN-40 package.
Part Context
This part belongs to the HV9989 series of LED drivers from Microchip Technology. It is functionally equivalent to the HV9989K6-G but includes the M935 suffix indicating specific manufacturing or packaging attributes. The series targets efficient, compact LED lighting solutions using boost topology.
Replacement Considerations
The HV9989K6-G is the base model. Verify if the M935 suffix indicates a specific reel configuration rather than a functional change. Cross-reference with other HV9989 variants only if pinout and electrical characteristics match exactly.
