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Part Number
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LD7921 |
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Manufacturer
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Leadtrend Technology |
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Description
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Primary-Side PWM Power Switch |
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Published
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Jul 5, 2015 |
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Detailed Description
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LD7921
02/02/2012
Primary-Side PWM Power Switch with CV/CC Operation
Ver. 00
General Description
The LD7921 integrated ...
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Datasheet
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LD7921
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Overview
LD7921
02/02/2012
Primary-Side PWM Power Switch with CV/CC Operation
Ver.
00
General Description
The LD7921 integrated a 700V power MOSFET and a primary-side feedback PWM controller with CV/CC operation in a SOP-6/DIP-7 package.
The LD7921 is designed for low power adapter/charger and LED lighting applications.
It minimizes the components counts and is available in tiny packages.
Those make it an ideal design for low cost applications.
The LD7921 provides constant voltage, constant current (CV/CC) operation requiring neither photo-coupler nor secondary control circuit.
Also, the LD7921 features OTP (Over Temperature Protection) and OVP (Over Voltage Protection) to prevent the circuit from b...
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