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MXHV9910BETR

P1-P3P4-P6P7-P9P10-P12
I
NTEGRATED
C
IRCUITS
D
IVISION
DS-MXHV9910-R04 www.ixysic.com 1
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
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.
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
MXHV9910 Block Diagram
Part Description
MXHV9910B SOIC-8 (100/Tube)
MXHV9910BTR SOIC-8 Tape & Reel (2000/Reel)
MXHV9910BE
SOIC-8 EP (100/Tube)
With Exposed Thermal Pad
MXHV9910BETR
SOIC-8 EP Tape & Reel (2000/Reel)
With Exposed Thermal Pad
V
DD
V
IN
R
T
LD
GND
PWMD
GATE
CS
6
1
8
7
5
3
+
-
+
-
4
2
OSC
Voltage
Regulator
Voltage
Reference
PWM
Control
250mV
I
NTEGRATED
C
IRCUITS
D
IVISION
MXHV9910
2 www.ixysic.com R04
1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 LED Driver Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.1 Input Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.2 Current Sense Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.3 Current Sense Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.4 Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.5 Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.6 Inductor Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.7 Gate Output Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.8 Linear Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.9 PWM Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.10 Combination Linear and PWM Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 ESD Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Board Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5 Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.1 MXHV9910B: SOIC-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.2 MXHV9910BE: SOIC-8 With Exposed Thermal Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.6 Packaging Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6.1 Tape & Reel Information for both 8-Pin Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
I
NTEGRATED
C
IRCUITS
D
IVISION
MXHV9910
R04 www.ixysic.com 3
1. Specifications
1.1 Package Pinout 1.2 Pin Description
1.3 Absolute Maximum Ratings
Electrical absolute maximum ratings are at 25°C.
Absolute maximum ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
V
IN
CS
GND
GATE
R
T
LD
V
DD
PWMD
1
2
3
4
8
7
6
5
Pin# Name Description
1
V
IN
Input voltage
2CS
LED Current Sense input. Internal current
sense threshold is set at 250mV. The external
sense resistor sets the maximum LED current.
3 GND Device Ground
4 GATE External MOSFET gate driver output
5PWMD
Low-frequency PWM dimming control input with
internal pull-down resistor.
6
V
DD
Regulated supply voltage output. Requires a
storage capacitor to GND. Can be overdriven by
external voltage applied to V
DD
.
7LD
Linear Dimming. Apply a voltage less than
V
CS(high)
to dim the LED(s).
8
R
T
Resistor to GND sets the oscillator/primary
PWM frequency.
EP -
Electrical and thermal conductive pad on the
bottom of the MXHV9910BE. Connect this pad
to ground, and provide sufficient thermal
coupling to remove heat from the package.
Parameter Symbol Maximum Unit
Input Voltage to GND
V
IN
-0.5 to +460 V
Inputs & Outputs Voltage to GND CS, LD, PWMD, GATE
-0.3 to V
DD
+0.3
V
V
DD
, Externally Applied V
DD.EXT
15 V
Power Dissipation
SOIC-8 With Thermal Tab
P
D
2.5 W
SOIC-8 W/O Thermal Tab 0.975 W
Maximum Junction Temperature
T
Jmax
150 °C
Operating Temperature
T
A
-40 to +85 °C
Junction Temperature (Operating)
T
J
-40 to +150 °C
Storage Temperature
T
STG
-55 to +150 °C
P1-P3P4-P6P7-P9P10-P12

MXHV9910BETR

Mfr. #:
Buy MXHV9910BETR
Manufacturer:
IXYS Integrated Circuits
Description:
LED Lighting Drivers Off-Line High Bright LED Driver
Lifecycle:
New from this manufacturer.
Delivery:
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