ON Semiconductor NCP4305DDR2G Secondary Side Controller 500 kHz 8-Pin, SOIC

Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The NCP4305 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, forward and half bridge resonant LLC. The combination of externally adjustable minimum off-time and on-time blanking periods helps to fight the ringing induced by the PCB layout and other parasitic elements. A reliable and noise less operation of the SR system is insured due to the Self Synchronization feature.

Precise True Secondary Zero Current Detection with Adjustable Threshold
Typically 20 ns Turn off Delay from Current Sense Input to Driver
Zero Current Detection Pin Capability
Adjustable Minimum ON Time and Minimum OFF Time
Self Synchronization
Light Load Detection with Modulated Gate Drive
Improves performance for applications working in deep CCM
Enters the IC into a low consumption standby mode

Attribute Value
Controller Type Synchronous Rectifier Controller
Number of Outputs 1
Maximum Switching Frequency 500 kHz
Width 4mm
Mounting Type Surface Mount
Package Type SOIC
Pin Count 8
Dimensions 5 x 4 x 1.5mm
Length 5mm
Height 1.5mm
Maximum Input Voltage 9.4 V
Maximum Operating Temperature 125 °C
Maximum Output Voltage 17 V
Minimum Operating Temperature -40 °C
Output Voltage Range -0.3 → 17 V
Operating Temperature Range -40 → +125 °C
Output Current Range 4 A, 8 A
Input Voltage Range 7.3 → 9.4 V
Minimum Output Voltage -0.3 V
Minimum Input Voltage 7.3 V
On back order for despatch 24/12/2019, delivery within 3 working days
Price Each (On a Reel of 2500)
HK$ 5.311
(exc. GST)
Per unit
Per Reel*
2500 +
*price indicative
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