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PDF PAM99700 Data sheet ( Hoja de datos )
| Número de pieza | PAM99700 | |
| Descripción | UNIVERSAL HIGH BRIGHTNESS LED DRIVER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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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. 1 - 1
1 of 12
www.diodes.com
October 2012
© Diodes Incorporated
1 page  
A Product Line of
Diodes Incorporated
PAM99700
Typical Performance Characteristics
(@TA = +25°C, VIN = 60V, 1WLED, RT = 510KΩ, L = 5.2mH, unless otherwise specified.)
PAM99700
Document number: DSxxxxx Rev. 1 - 1
5 of 12
www.diodes.com
October 2012
© Diodes Incorporated
5 Page 
Package Outline Dimensions (cont.) (All dimensions in mm.)
SOP-16
A Product Line of
Diodes Incorporated
PAM99700
PAM99700
Document number: DSxxxxx Rev. 1 - 1
11 of 12
www.diodes.com
October 2012
© Diodes Incorporated
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet PAM99700.PDF ] | |
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