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PF7900 Powerforest

The PF7900 is a boost controller that can operate from 9V to 27V and provides current mode control, over current and temperature protection, and input/output over voltage protection. It integrates a current mode PWM controller and high driving MOSFET driver into a small SOP-8 package. The adjustable switching frequency and PWM dimming input make it suitable for applications such as LED backlights and lighting. A typical application diagram shows it boosting an input voltage to power multiple LED strings.

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Ermand Yap
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2K views1 page

PF7900 Powerforest

The PF7900 is a boost controller that can operate from 9V to 27V and provides current mode control, over current and temperature protection, and input/output over voltage protection. It integrates a current mode PWM controller and high driving MOSFET driver into a small SOP-8 package. The adjustable switching frequency and PWM dimming input make it suitable for applications such as LED backlights and lighting. A typical application diagram shows it boosting an input voltage to power multiple LED strings.

Uploaded by

Ermand Yap
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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PF7900

9V to 27V Input Current Mode


Boost Controller
Specification Rev. 1.4       

FEATURES GENERAL DESCRIPTION


 Wide Input Range: 9V to 27V The PF7900 is a wide-input voltage boost controller
 Adjustable Switching Frequency Setting which can be operated from 9V to 27V. The special
 Current Mode Control dimming input helps to synchronize this device with
 300mV Current Sensing Reference multi-channel current matching ICs or MOSFETs for
 Over Current Protection LED applications such as LED backlight or LED
 Over Temperature Protection lighting. PF7900 integrated the current mode PWM
 Output Over Voltage Protection controller with a high driving capability MOSFET
 Input Over Voltage Protection driver, over current protection, and input/output over
 PWM Dimming Input voltage protection in a SOP-8 package to minimize
the PCB size as well as the component counts. The
APPLICATIONS adjustable frequency setting helps users to select the
 Front-End Stage of LED Backlight optimized operation frequency.
 LED Lighting

TYPICAL APPLICATION

Vbus

VCC
OUT
Dimming
Signal
PF7900 CS
DIM
FB
RT GND GM

LED8 LED7 LED6 LED5 LED4 LED3 LED2 LED1

COMP
PF7004/8
DIM
GND

www.powerforest.com 1
PF7900_DS_14
Jan, 2014

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