HomedatasheetIRS27951SPBF

IRS27951SPBF Datasheet

Power Driver ICs
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Description

The IRS27951SPBF is a self oscillating half-bridge driver IC for DC-DC resonant converter applications, especially the LLC resonant half-bridge converter. The frequency and dead time can be programmed externally using two external components. The IC offers over current protection using the on state resistance of the low-side MOSFET. The IC can be disabled by externally pulling the voltage at the CT/SD pin below its enable voltage threshold IRS27951SPBF Features • Simple primary-side control solution for fixed and variable frequency DC-DC resonant converters.• Max 500kHz per channel output with 50% duty cycle• Floating channel bootstrap operation up to +600Vdc• Programmable minimum and maximum switching frequency• Programmable soft start frequency and soft start time • Programmable dead time• Micropower start-up & ultra low quiescent current• Over-current protection using low side MOSFET Rds(on)• User initiated micropower “Sleep mode” • Under-voltage Lockout• Simple design with minimal component count.• Lead-free IRS27951SPBF Applications • LCD & PDP TV• Telecom SMPS, PC SMPS• Home Audio Systems
Features

Parameters

[{"Name":"Rise Time","Value":"200 ns"},{"Name":"Fall Time","Value":"65 ns"},{"Name":"Output Current","Value":"900 mA"},{"Name":"Supply Voltage - Max","Value":"20 V"},{"Name":"Supply Voltage - Min","Value":"10 V"},{"Name":"Supply Current","Value":"300 mA"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SEIKO INSTRUMENTS

Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.


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