SDB9HB datasheet(2/9 Pages) SHOUDING

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PIN DESCRIPTION

PACKAGE/ORDER INFORMATION

ABSOLUTE MAXIMUM RATINGS

The SDB9HB

SDB9HB

(Note 1)

Input Supply Voltage………………-0.3V to 25V

EN,FB Voltages……………………..-0.3V to 6V

SW Voltage………………………..-0.3V to 30V

Power Dissipation………………………...0.6W

Thermal Resistance

θJC……………….130°C/W

Thermal Resistance

θJA……………….250°C/W

Junction Temperature(Note2)……….........160°C

Operating Temperature Range…….-40°C to 85°C

Lead Temperature(Soldering,10s)………...300°C

Storage Temperature Range……..-65°C to 150°C

ESD HBM(Human Body Mode)……………...2kV

ESD MM(Machine Mode)………………….200V

GND

VIN

TOP VIEW

6-LEAD PLASTIC SOT-23

TJMAX = 160°C,

θJA = 250°C/ W, θJC = 130°C/W

Order Part Number

Package

SOT23-6

Pin Name

Pin Number

Description

Inductor Connection. Connect to the switched side of the external

inductor as well as the anode of the external diode. SW is high

impedance during shutdown.

GND

Ground Pin.

Current-Sense Feedback Input. Connect a resistor from FB to GND to set

the LED current: I

LED=0.2V/RCS

Enable and LED Brightness Control Input. Pull high to turn on IC.Drive EN

with a 20kHz to 1MHz unfiltered PWM dimming signal for DC LED

current that is proportional to the signal’s duty cycle.

Over Voltage Input.

turn off the N-channel MOSFET when

OUT exceeds 28V .Connect OV to the output at the top of the LED string.

VIN

Power Supply Input. Must be closely decoupled to GND with a 1µF or

greater ceramic capacitor.

SDB9HB

Shouding

SDB9HB Rev1.0

SDB9HB Datasheet(PDF) 2 Page - SHOUDING Shouding Semiconductor

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