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SC3053 Fast Turn-Off Synchronous Rectifier Controller SOT23-6 New And Original
Classification:
Product
High frequency transformer
- Product Detail
-
- Commodity name: SC3053 Fast Turn-Off Synchronous Rectifier Controller SOT23-6 New And Original
- Commodity ID: 1342449579240083456
1 Description
SC3503 is a smart secondary-side driver IC designed to
drive N-Channel power MOSFET used as synchronous
rectifiers in isolated flyback converters. The MOSFET can
replace Schottky diode so the system can achieve higher
efficiency and superior heat dissipation performance.
The SR MOSFET is turned on when VDS falls below turn-on
threshold, and turned off when VDS exceeds turn-off
threshold. The SR conduction voltage drop is continuously
monitored to minimize the conduction loss. The extremely
fast turn-off comparator and driving circuitry ensures the
safety of the SR MOSFET, even in current continuous mode
(CCM) condition.
The IC can work well in wide output voltage range, even in
short circuit conditions. The patented turn on detection
circuity prevents SR turn on when Vds rings severely. The
wide VDD range and gate driver technology make the
controller ideal for wide output voltage range applications,
such as adapters, chargers, USB Power Delivery (USB-PD),
etc.
This chip supports both high side rectification and low side
rectification.2 Features
Wide output range, even down to 0V.
No need of auxiliary winding for power supply.
Patented programmable turn on detection circuitry
prevents MOSFET from mistake turn-on.
Compliant with multiple types of MOSFETs
High efficiency can meet CoC V5 and DoE VI.
10nS turn off propagation delay
High switching frequency up to 1MHz.
Extremely low quiescent current leads to low stand by
power.
Supports DCM, CCM, and Quasi-Resonant mode
converters.
Supports both high and low side synchronous
rectification.
SOT23-6 package available3 Applications
Universal AC-DC Adaptors
USB PD and QC Chargers
Flyback Power Supplies with Variable Output Voltage
AC-DC auxiliary supplies
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