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PAM99700

Part Number	PAM99700
Manufacturer	Diodes
Description	UNIVERSAL HIGH BRIGHTNESS LED DRIVER
Published	Feb 27, 2016
Detailed Description	A Product Line of Diodes Incorporated PAM99700 UNIVERSAL HIGH BRIGHTNESS LED DRIVER Description The PAM99700 is an open...
Datasheet	PAM99700 PDF File

Overview

A Product Line of Diodes Incorporated PAM99700 UNIVERSAL HIGH BRIGHTNESS LED DRIVER Description The PAM99700 is an open loop current mode control LED driver IC.
The PAM99700 can be programmed to operate in either a constant frequency or constant off-time mode.
It includes a 12 - 500V regulator which allows it to work from a wide range of input voltages without the need for an external low voltage supply.
The PAM99700 includes a PWM dimming input that can accept an external control signal with a duty ratio of 0 - 100% and a frequency of up to a few kilohertz.
It also includes a 0 - 250mV linear dimming input which can be used for linear dimming of the LED current.
The PAM99700 is ideally suited for buck LED drivers.
Since the PAM99700 operates in open loop current mode control, the controller achieves good output current regulation without the need for any loop compensation.
PWM dimming response is limited only by the rate of rise and fall of the inductor current, enabling very fast rise and fall times.
The PAM99700 requires only three external components (apart from the power stage) to produce a controlled LED current making it an ideal solution for low cost LED drivers.
Pin Assignments Features • Switch Mode Controller for Single Switch LED Drivers • Open Loop Peak Current Controller • Constant Frequency or Constant Off-Time Operation • Linear and PWM Dimming Capability • Requires Few External Components for Operation • Application From a Few mA to More than 1A Output Applications • DC/DC or AC/DC LED Driver Applications • RGB Backlighting LED Driver • Back Lighting of Flat Panel Displays • General Purpose Constant Current Source • Signage and Decorative LED Lighting PAM99700 Document number: DSxxxxx Rev.
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diodes.
com October 2012 © Diodes Incorporated Typical Applications Circuit A Product Line of Diodes Incorporated PAM99700 Pin Descriptions Pin Name VIN CS GND GATE PWMD VDD LD RT NC Pin Number SOP-8 SOP-16 11 24 35 48 59 6 12 7 1...

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