MXHV9910

R04

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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

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

Regulated supply voltage output. Requires a

storage capacitor to GND. Can be overdriven by

7LD

Linear Dimming. Apply a voltage less than

8

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

-0.5 to +460

V

Inputs & Outputs Voltage to GND

CS, LD, PWMD, GATE

V

15

V

Power Dissipation

SOIC-8 With Thermal Tab

2.5

W

SOIC-8 W/O Thermal Tab

0.975

W

Maximum Junction Temperature

150

°C

Operating Temperature

-40 to +85

°C

Junction Temperature (Operating)

-40 to +150

°C

Storage Temperature

-55 to +150

°C