Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
PT6904 is a constant-current LED driver IC utilized constant frequency, controls buck, boost or buck-boost switch converter. In each control mode, PT6904 adopts the inductance current continuous conduction, peak current control mode and the feedback of the output current. It’s controlled by the internal transconductance operational amplifier and external adj.
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• >90% Efficiency Operating voltage: 9V~36V Constant-current driver Switch control mode: Buck, Boost, Buck-Boost Stable operation frequency Slope compensation Output current closed loop control Input current limit, output over voltage protection, output short-circuit protection Linear dimming & PWM dimming Synchronization Soft start
APPLICATIONS
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• LED backlight Automotive LED lighting Other DC/DC LED
PT6904 V1.1
-1-
October, 2008
Free Datasheet http://www.Datasheet4U.com
High Power LED Driver
PT6904
BLOCK DIAGRAM
PT6904 V1.1
-2-
October, 2008
Free Datasheet .
PT6904 - PTC
PT6904 is a constant-current LED driver IC utilized constant frequency, controls buck, boost or buck-boost switch conver.
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|---|---|---|---|---|
| 1 | PT6903 |
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| 2 | PT6913 |
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| 3 | PT6913A |
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| 4 | PT6913B |
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| 5 | PT6923 |
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| 6 | PT6923DB1 |
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| 7 | PT6923DB2 |
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| 8 | PT6955 |
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| 9 | PT6956 |
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| 10 | PT6957 |
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| 11 | PT6958 |
Princeton Technology Corp |
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|
| 12 | PT6959 |
Princeton Lightwave |
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|