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HM1465 Datasheet - HMSEMI

Part Name
Description
MFG CO.
HM1465
HMSEMI
Shenzhen Huazhimei Semiconductor Co., Ltd HMSEMI
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Description
HM1465 is a DC/DC Buck Synchronous with four current limit pins suitable for many multi‐output applications. It is designed to allow for operating a wide supply voltage range from 9V to 40V. It has both high‐side and low‐side drivers allowing synchronous configuration using two external power‐NMOS. This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes.
HM1465 operates as a DC‐DC Buck Controller providing a wide range of outputs at Constant Current (CV) from 1.2V to 28V and the output current as high as 10A or above. It has a Constant Current(CC) mode so that output current can be set externally and at a accuracy of +/‐7%. The current mode control and external compensation makes feedback control have good line and load regulation with flexible external design.
There are four independent current limit control pins for four separate loads. Each of the current limit can be set by a resistor(RCS) at 108mV across it. Of course, output peak current limit is working during normal operation

Features
● Vin: 8.5V to 40V
● Vout: 1.2V to 28V; typical at 5V
● CC/CV Mode Control
● PFM Mode for Increased Light Load Efficiency
● 4 outputs current precision OCP: Adjustable Current‐Limit Protection
● Burst mode when OCP/SCP occur
● Protection
    NMOS peak current limit: accuracy: ~30%
    Output short protection: reduce input current to
    less than 20mA(RMS)
    Temperature shut down(OTP)
● Adjustable Output Cable Resistance Compensation
● Duty: 0~95%
● Switching Frequency: 100kHz to 300KHz
● Integrated MOSFET Drivers
● QFN20 Package

Applications
● Car Charger
● High‐Brightness Lighting
● General‐Purpose DC/DC Controller

 

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