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NCP4305ADR2G Datasheet PDF - ON Semiconductor

Manufacturer:

ON Semiconductor

Case Package:

SOIC-8

Description:

The NCP434 and NCP435 are very low Ron MOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy. Indeed, thanks to a current consumption optimization with PMOS structure, leakage currents are eliminated by isolating connected IC on the battery when not used. Output discharge path is availabale in NCP435 version.

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Documentation:

NCP4305ADR2G Datasheet (52 Pages)

Package Outline Dimension on50 Page 51 Page 52 Page

Package Footprint Pad Layout on50 Page 51 Page 52 Page

Part Numbering System on1 Page 49 Page 52 Page

NCP4305ADR2G User Reference Manual Guide (13 Pages)

NCP4305ADR2G Datasheet PDF (52 Pages)

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NCP4305ADR2G Specifications

TYPE

DESCRIPTION

Mounting Style

Surface Mount

Number of Pins

8 Pin

Case/Package

SOIC-8

Number of Positions

8 Position

Switching Frequency

1000 kHz

Operating Temperature (Max)

125 ℃

Operating Temperature (Min)

-40 ℃

Supply Voltage

35 V

Supply Voltage (Max)

35 V

Input Voltage

1V ~ 3.6V

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NCP4305ADR2G Size & Package

TYPE

DESCRIPTION

Product Lifecycle Status

Active

Packaging

Tape & Reel (TR)

Operating Temperature

-40℃ ~ 125℃

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NCP4305ADR2G Environmental

NCP4305ADR2G Export Classifications

NCP4305ADR2G Function Overview

●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. The NCP4305 also utilizes Kelvin connection of the driver to the MOSFET to achieve high efficiency operation at full load and utilizes a light load detection architecture to achieve high efficiency at light load. The precise turn−off threshold, extremely low turn−off delay time and high sink current capability of the driver allow the maximum synchronous rectification MOSFET conduction time and enables maximum SMPS efficiency. The high accuracy driver and 5 V gate clamp enables the use of GaN MOSFETs.

●Features | | Benefits

●---|---|---

● | | | | |

● Precise True Secondary Zero Current Detection with Adjustable Threshold

●| |

● Allows for proper timing of SR MOSFET turn on and turn off

● Typically 20 ns Turn off Delay from Current Sense Input to Driver

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● Maximizes conduction time of the MOSFET to increase efficiency

● Zero Current Detection Pin Capability up to 200 V

●| |

● Allows direct connection of CS input to MOSFET drain in flyback applications