MAX157/MAX1577Z charger-pump drive white light LED

Published:2011/9/14 21:07:00 Author:leo | Keyword: charger-pump, white light LED | From:SeekIC

MAX157/MAX1577Z charger-pump is used to drive high power white light LED, for example, camera flash. Its maximum current is 1.2A and minimum current is 800 mA. Even if its input voltage and current are super low, its low resistance will allow it has a high brightness of flash. It adopts outer resistance set system to control the current. Max1577Z has a fixed output voltage of 5.1 V and MAX1577Y can output voltage of 3.4 V, 4.6 V or 5.1 V.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/LED_and_Light_Circuit/MAX157_MAX1577Z_charger_pump_drive_white_light_LED.html

Print this Page | Comments | Reading(3)