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MXHV9910
Off-Line, High Brightness
I NTEGRATED C IRCUITS D IVISION
Features
? 8V DC to 450V DC Input Voltage Range
? >90% Efficiency
? Drives Multiple LEDs in Series/Parallel
Combinations
? Regulated LED Drive Current
? Linear or PWM Brightness Control
? Resistor-Programmable Oscillator Frequency
LED Driver
Description
The MXHV9910 is a low-cost, high-brightness (HB)
LED driver manufactured using IXYS IC Division’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 DC to 450V DC . This highly
versatile input operating voltage enables this IC to be
used in a broad range of HB LED applications.
? RoHS Compliant
The driver features a fixed-frequency, peak-current
Applications
? Flat-Panel Display RGB Backlighting
? Signage and Decorative LED Lighting
? DC/DC or AC/DC LED Driver Applications
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.
Pb
e 3
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
MXHV9910B
SOIC-8 (100/Tube)
MXHV9910BTR
SOIC-8 Tape & Reel (2000/Reel)
SOIC-8 EP (100/Tube)
MXHV9910BE
With Exposed Thermal Pad
SOIC-8 EP Tape & Reel (2000/Reel)
MXHV9910BETR
With Exposed Thermal Pad
MXHV9910 Block Diagram
V DD
V IN
R T
6
1
8
Voltage
Reference
250mV
Voltage
Regulator
OSC
LD
7
-
+
-
PWM
Control
4
GATE
+
PWMD
5
DS-MXHV9910-R03
GND
3
www.ixysic.com
2
CS
1
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