IRS27951S_15 Datasheet, PDF (1/28 Pages) International Rectifier – RESONANT HALF-BRIDGE CONVERTER CONTROL IC

IRS27951S
IRS27952(4)S
RESONANT HALF-BRIDGE CONVERTER CONTROL IC
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
Product Summary
Topology
V_OFFSET
V_OUT
I_O+ & I_O- (typical)
Dead-time
(programmable)
Package Options
Typical Application
• LCD & PDP TV
• Telecom SMPS, PC SMPS
• Home Audio Systems
IRS27951S/IRS27952S
Half-Bridge
600 V
V_CC
300 mA & 900 mA
200ns~2us
14-lead SOIC
IRS279524S
Ordering Information
Base Part Number
Package Type
IRS27951
SOIC8N
IRS27952
SOIC8N
IRS279524
SOIC14N
Standard Pack
Form
Quantity
Tube/Bulk
95
Tape and Reel
2500
Tube/Bulk
95
Tape and Reel
2500
Tube/Bulk
55
Tape and Reel
2500
Complete Part Number
IRS27951SPBF
IRS27951STRPBF
IRS27952SPBF
IRS27952STRPBF
IRS279524SPBF
IRS279524STRPBF
1 www.irf.com © 2012 International Rectifier
November 8^th, 2012