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R2A20124AFP

更新时间： 2024-11-21 06:06:23
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瑞萨 - RENESAS /
页数 文件大小 规格书
13页 141K
描述
Synchronous Phase Shift Full-Bridge Control IC Series

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Preliminary Datasheet  
R2A20124AFP/R2A20124ASP  
Synchronous Phase Shift Full-Bridge Control IC Series  
REJ03D0928-0200  
Rev.2.00  
Aug 03, 2010  
Description  
The R2A20124AFP/R2A20124ASP controls a full-bridge phase shift circuit and secondary synchronous rectification.  
The R2A20124AFP/R2A20124ASP has adjustable delay time functions which make ZVS of primary side and make  
loss of body diode of primary switching device minimal.  
The R2A20124AFP/R2A20124ASP is based on HA16163/R2A20121. And RAMP slope compensation circuit is built-  
in as an additional function. Also its output driver circuits are improved to enlarge gate drive output voltage swing from  
VREF to VCC.  
In addition R2A20124AFP has ON/OFF function of synchronous rectification and includes amplifier which detect input  
current signal.  
Features  
Maximum ratings  
Supply voltage Vcc: 20 V  
Operating junction temperature Tj-opr: –40 to +125°C  
Electrical characteristics  
VFB feedback voltage VFB(–): 1.25 V 2.0%  
UVLO (Under Voltage Lockout) operation start voltage VH: 8.4 V 0.7 V  
UVLO operation shutdown voltage VL: 8.0 V 0.6 V  
UVLO hysteresis voltage dVUVL: 0.4 V 0.1 V  
Output voltage swing of OUT-A, B, C, D, and E for gate drive: GND to VCC  
Functions  
R2A20124AFP/R2A20124ASP  
Full-bridge phase-shift switching circuit with adjustable delay times  
Pulse by pulse current limit  
Synchronization I/O for the oscillator  
Ramp sloping adjustor  
Error amplifier built-in  
Soft start function  
R2A20124AFP  
Synchronous rectification on/off control  
Remote on/off control  
Amplified output of current sense input voltage: CS  
Package lineup  
Pb-free LQFP-40: R2A20124AFP  
Pb-free SOP-20: R2A20124ASP  
Ordering Information  
Part No.  
R2A20124AFP-W0  
R2A20124AFP-W5  
R2A20124AFP-U0  
R2A20124AFP-U5  
R2A20124ASP-W0  
R2A20124ASP-W5  
R2A20124ASP-U0  
R2A20124ASP-U5  
Package Name  
FP-40EV  
Package Code  
PLQP0040JB-C  
Taping Spec.  
2000 pcs./one taping product  
2000 pcs./one taping product  
—
—
FP-20DAV  
PRSP0020DD-B  
2000 pcs./one taping product  
2000 pcs./one taping product  
—
—
REJ03D0928-0200 Rev.2.00  
Aug 03, 2010  
Page 1 of 12  
1234567...13

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