MXHV9910
Off-Line, High Brightness LED Driver
Features
Description
• 8V to 450V Input Voltage Range
• >90% Efficiency
The MXHV9910 is a low-cost, high-brightness (HB)
LED driver manufactured using Clare’s high-voltage
BCDMOS on SOI process. This driver has internal
circuitry that allows it to operate from a universal AC
line or from 8V to 450V . This highly versatile
DC
DC
• Drives Multiple LEDs in Series/Parallel
Combinations
• Regulated LED Drive Current
• Linear or PWM Brightness Control
• Resistor-Programmable Oscillator Frequency
• RoHS Compliant
DC
DC
input operating voltage enables this IC to be used in a
broad range of HB LED applications.
The driver features a fixed-frequency, peak-current
control method, which provides an ideal solution for
driving multiple LEDs in series and in parallel. In
addition, LED dimming can be implemented by
applying a small DC voltage to the LD pin, or by
applying a low-frequency digital PWM signal to the
PWMD pin.
Applications
• Flat-Panel Display RGB Backlighting
• Signage and Decorative LED Lighting
• DC/DC or AC/DC LED Driver Applications
The MXHV9910 is available in a standard 8-lead SOIC
package and a thermally enhanced 8-lead SOIC
package with an Exposed Thermal Pad (EP)
Ordering Information
Part
Description
SOIC-8 (100/Tube)
MXHV9910B
RoHS
2002/95/EC
MXHV9910BTR
SOIC-8 Tape & Reel (2000/Reel)
Pb
e3
SOIC-8 EP (100/Tube)
With Exposed Thermal Pad
MXHV9910BE
SOIC-8 EP Tape & Reel (2000/Reel)
With Exposed Thermal Pad
MXHV9910BETR
Block Diagram
6
VDD
1
Voltage
VIN
Regulator
Voltage
Reference
250mV
8
OSC
RT
-
+
PWM
4
Control
GATE
7
-
LD
+
5
3
PWMD
GND
2
CS
DS-MXHV9910-R01
www.clare.com
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