MXHV9910 Datasheet, PDF (1/11 Pages) Clare, Inc. – Off-Line, High Brightness LED Driver

MXHV9910
Off-Line, High Brightness LED Driver
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
• RoHS Compliant
Applications
• Flat-Panel Display RGB Backlighting
• Signage and Decorative LED Lighting
• DC/DC or AC/DC LED Driver Applications
Pb
RoHS
2002/95/EC
e3
Block Diagram
6
V_{DD 1}
V_IN
R_T ⁸
Voltage
Reference
250mV
7
LD
PWMD ⁵
3
GND
Voltage
Regulator
OSC
-
+
-
+
Description
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_DC to 450V_DC. This highly versatile
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.
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
MXHV9910B
MXHV9910BTR
MXHV9910BE
MXHV9910BETR
Description
SOIC-8 (100/Tube)
SOIC-8 Tape & Reel (2000/Reel)
SOIC-8 EP (100/Tube)
With Exposed Thermal Pad
SOIC-8 EP Tape & Reel (2000/Reel)
With Exposed Thermal Pad
PWM
Control
4 _GATE
2
CS
DS-MXHV9910-R01
www.clare.com
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