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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：8V
- Voltage - Supply (Max)：450V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Analog, PWM
- Applications：Backlight, Lighting, Signage
- 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 HV9961LG-G is an LED driver IC from Microchip Technology featuring average-current mode constant-current control. It operates in a constant off-time mode to eliminate peak-to-average current errors, thereby improving accuracy and regulation without requiring loop compensation or high-side current sensing. The device supports Boost and Buck topologies for single-channel output. It is housed in an SOIC-8 package and includes PWM dimming capabilities.
Feature Summary
- Average-current mode control eliminates peak-to-average error for improved LED current accuracy
- Constant off-time operation simplifies design by removing the need for loop compensation
- Supports both Boost and Buck converter topologies for flexible LED driving applications
Applications
- LED backlighting systems
- General LED lighting fixtures
- Signage applications
Procurement Notes
Verify the specific suffix 'LG-G' against the official Microchip datasheet to confirm package type and environmental compliance. Ensure the ordering part number matches the required pinout and thermal characteristics. Cross-reference with authorized distributors to validate authenticity and supply chain integrity before finalizing procurement decisions.
Selection Notes
Select this component when precise average current regulation is required without complex compensation networks. It is suitable for designs utilizing either Buck or Boost architectures. Consider the SOIC-8 package constraints and thermal dissipation requirements relative to the target LED load and operating environment.
Part Context
This part belongs to the HV9961 family of LED drivers designed for high-performance constant current applications. It distinguishes itself from predecessors like the HV9910B by offering superior regulation through average-mode control rather than peak-mode sensing, reducing component count and design complexity.
Replacement Considerations
Direct substitutes may include other Microchip average-mode LED drivers such as the HV9963 series, though topology and pinout compatibility must be verified. Generic replacements are not recommended due to specific control algorithm differences.
