NCP4307: Secondary Side Synchronous Rectification Driver with Dual Supply

Datasheet: Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies
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Product Overview
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 The NCP4307 is high performance driver tailored to control a synchronous rectification MOSFET in switch mode power supplies. Thanks to its high performance drivers and versatility, it can be used in various topologies such as DCM or CCM flyback, quasi resonant flyback, active clamp flyback and forward.  Self-supply capability and dual VCC pin option optimizes designs for wide VOUT range applications, such as USB PD, and can be configured for high side or low side operation.
Features   Benefits
     
  • Precise True Secondary Zero Current Detection
 
  • Allows for proper timing of SR MOSFET turn on and turn off
  • Dual Supply Pins
 
  • Selects optimal Vcc source to minimize power loss
  • Self Supply
 
  • Allows to use in high side configuration and low output voltage without AUX supply source
  • Positive dV/dt detection
 
  • For Active Clamp Flyback Designs, detects proper conduction phase during transition from DCM to ACF mode
  • Light load detection
 
  • Improves light load efficiency
Applications   End Products
  • USB PD
  • High Density SMPS
 
  • USB PD Adapters
  • SMPS
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (2)
Package Drawings (1)  
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP4307AASNT1G Active 
Pb-free
Halide free
NCP4307, ACF optimal configuration, 4.7 V VCCL_SB_A TSOP-6 318G-02 1 260 Tape and Reel 3000 $0.292
NCP4307FASNT1G Active 
Pb-free
Halide free
NCP4307, Flyback optimal configuration, 4.7 V VCCL_SB_A TSOP-6 318G-02 1 260 Tape and Reel 3000 $0.292
NCP4307FBSNT1G Active 
Pb-free
Halide free
NCP4307, Flyback optimal configuration, 8.9 V VCCL_SB_A TSOP-6 318G-02 1 260 Tape and Reel 3000 $0.292
NCP4307WASNT1G Active 
Pb-free
Halide free
NCP4307, Forward optimal configuration, 4.7 V VCCL_SB_A TSOP-6 318G-02 1 260 Tape and Reel 3000 $0.292
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
VCC Max (V)
Vref Typ (V)
ICC Max (A)
TA Min (°C)
TA Max (°C)
Package Type
NCP4307AASNT1G  
 $0.292 
Pb
H
 Active   
35
4.7
1.6
-40
125
TSOP-6
NCP4307FASNT1G  
 $0.292 
Pb
H
 Active   
35
4.7
1.6
-40
125
TSOP-6
NCP4307FBSNT1G  
 $0.292 
Pb
H
 Active   
35
8.9
1.6
-40
125
TSOP-6
NCP4307WASNT1G  
 $0.292 
Pb
H
 Active   
35
4.7
1.6
-40
125
TSOP-6
Case Outlines
318G-02   
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