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Product Detailed Parameters
- Description：IC LED DRIVER OFFL PWM 8SOIC
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Type：AC DC Offline Switcher
- 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：64kHz
- Dimming：PWM
- Applications：Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
- Grade：-
- Qualification：-
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Overview
The Littelfuse MXHV9910BE is a high-brightness LED driver manufactured using IXYS IC Division's high-voltage BCDMOS on SOI process. It operates from a universal AC line or 8VDC to 450VDC input. The device features an output current of 0.9 A and supports PWM dimming applications. It is housed in an 8-SOIC package with an exposed pad, measuring 0.154 inches (3.90mm) width. The switching frequency maximum is 77kHz, and the operating temperature range spans -40°C to +85°C.
Feature Summary
- Integrated internal circuitry enabling operation from universal AC lines or wide DC voltage ranges
- Supports PWM dimming for high-brightness LED applications
- Manufactured using high-voltage BCDMOS on SOI process technology
Applications
- Off-line high-brightness LED drivers
- PWM dimming application circuits
- Typical buck driver configurations for LED lighting
Procurement Notes
Verify the specific suffix BE indicates tube packaging when ordering. Confirm the manufacturer source is Littelfuse or authorized IXYS IC Division channels. Ensure the component matches the 8-SOIC exposed pad physical dimensions. Check RoHS compliance status if required by your manufacturing standards. Validate the part number against official Littelfuse databases before purchase.
Selection Notes
Select this component for designs requiring a low-cost solution for high-brightness LEDs. It is suitable for applications needing input voltages between 8VDC and 450VDC. Consider the 0.9A output current capability for load requirements. The 77kHz switching frequency should be evaluated for EMI constraints. Ensure thermal management accommodates the SOIC-8 EP package within the specified temperature range.
Part Context
The MXHV9910 series includes variants such as the MXHV9910BETR, which shares similar electrical characteristics but differs in packaging. The BE suffix typically denotes tube packaging, while TR indicates tape and reel. This family is designed for offline LED driving, simplifying power management by integrating regulators and control circuits onto a single chip.
Replacement Considerations
Check for direct substitutes within the MXHV9910 series, such as MXHV9910BETR, noting packaging differences. Verify pin compatibility and electrical specifications match before substitution. Consult Littelfuse documentation for approved replacement lists. Ensure any alternative maintains the same SOI BCDMOS process advantages.
