NCP4328: Secondary Side Controller, Constant Voltage / Constant Current (CV / CC)

Datasheet: Secondary Side CV/CC Controller
Rev. 2 (90kB)
Product Overview
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Product Change Notification
The NCP4328 is a secondary side SMPS controller designed for use in applications which requires constant current and/or constant current regulation. The NCP4328x consists of two OTA amplifiers for voltage and current loop regulation with precise internal voltage references. Outputs of OTAs are open drain type (OTAs sink current only). The NCP4328B includes a LED driver pin implemented with an open drain MOSFET driven by a 1 kHz square wave with a 12.5% duty cycle working when VCC is above UVLO for indication purpose. The NCP4328A is available in TSOP5 package while the NCP4328B is available in TSOP6 package.
Features   Benefits
     
  • Operating Input Voltage Range: 2.5 V to 36.0 V
  
  • Wide application use
  • Supply current < 100 uA
  
  • Low Standby/No Load power
  • 0.5% Reference Voltage Accuracy (TJ = 25C)
  
  • Tight Voltage & Current Regulation
  • Constant Voltage and Constant Current Control Loop
  
  • Both CV and CC Regulation
  • Indication LED PWM Modulated Driver (NCP4328B)
  
  • Low power Indicator Light
Applications   End Products
  • CC CV Charging
  • LED Lighting
  
  • LED Lighting
  • LCD TV
Technical Documentation & Design Resources
Design Notes (1) Evaluation Board Documents (7)
Data Sheets (1) FAQ (1)
Package Drawings (2)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1568PD60WGEVB Active
Pb-free
NCP1568 USB-PD 60W Evaluation board
Availability & Samples
Specifications
Application Diagram
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP4328ASNT1G Active
Pb-free
Halide free
NCP4328 TSOP-5 / SOT-23-5 483 1 260 Tape and Reel 3000 $0.1569
NCP4328BSNT1G Active
Pb-free
Halide free
NCP4328, with LED driver TSOP-6 318G-02 1 260 Tape and Reel 3000 $0.1569
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
V(BR) Typ (V)
Tolerance (%)
IQ Typ (mA)
IR Min (mA)
VF Max (V)
TA Min (°C)
TA Max (°C)
Package Type
NCP4328ASNT1G  
 NCP4328 
 $0.1569 
Pb
H
 Active   
Adjustable
1.25
0.48
0.105
0.105
1.256
-40
125
TSOP-5 / SOT-23-5
NCP4328BSNT1G  
 NCP4328, with LED driver 
 $0.1569 
Pb
H
 Active   
Adjustable
1.25
0.48
0.115
0.115
1.256
-40
125
TSOP-6
Case Outlines
483    318G-02   
NCP4328: Secondary Side Controller, Constant Voltage / Constant Current (CV / CC)
Application
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