HV9910CLG-G

HV9910CLG-G is a high-voltage, constant-current LED driver IC from the HV9910 family. It is designed to drive series-connected LED strings (backlights, signage, etc.) with a regulated current using an external switch (MOSFET) and a flyback/buck-type power stage. Key features typically include open-LED protection, overcurrent protection, undervoltage lockout, and PWM or analog dimming for brightness control. The LED current is set by an external sense resistor, providing flexibility for different string requirements. It supports high-voltage input (from tens to hundreds of volts, suitable for rectified mains applications). The LG-G suffix generally denotes a RoHS-compliant, lead-free package variant. Typical applications include LCD TV/monitor backlights, signage lighting, and LED lighting where precise current regulation and high-voltage input handling are needed.

Closest equivalent: Renesas/Intersil ISL9910. There aren’t many exact substitutes from other vendors. For BOM replacement, use distributor cross-reference tools to find a 3-channel high-voltage LED driver with matching current/voltage specs as HV9910.

HV9910CLG-G features (concisely):
- High-voltage, constant-current LED driver designed for direct-drive LED strings (backlight/applications)
- Wide input voltage range with a stable high-side current regulator
- PWM dimming input for fast, flicker-free brightness control; supports analog dimming via control pins
- Open-circuit and short-circuit LED protection with auto-recovery
- Overcurrent and overtemperature protection
- Soft-start and EMI-friendly operation for smooth startup
- High current regulation accuracy over operating conditions
- RoHS-compliant (Pb-free) package (G suffix indicates lead-free)

Pin count: 16 pins (16‑pin package).
Function: HV9910CLG-G is a high‑voltage, four‑channel constant‑current LED driver. It provides four independent current‑regulated outputs for LED strings, with PWM/dimming control, external current setting, and protection features (open/load, overvoltage, etc.).

- Manufacturer: Microchip Technology Inc. (originally Supertex, Inc.).
- What kind of company: A semiconductor company that designs and manufactures high-voltage analog/mixed-signal integrated circuits, including LED driver ICs.

HV9910CLG-G is a high-voltage, constant-current LED driver IC (RoHS lead-free, CLG package). It is used to drive high-voltage LED strings in lighting/display applications. Typical uses include:
- LCD TV/monitor backlighting
- LED signage and large-format displays
- Architectural and decorative lighting
- Automotive lighting (interior/exterior)
- General high-voltage LED-string driver modules
These applications benefit from reliable constant-current regulation for series-connected LEDs.

HV9910CLG-G is in an 8-pin SOIC (SOP-8) package; CLG indicates the RoHS lead-free variant.