R2A20132SP Datasheet, PDF (1/9 Pages) Renesas Technology Corp – Critical Conduction Mode Interleave PFC Control IC

Preliminary
R2A20132SP
Critical Conduction Mode Interleave PFC Control IC
REJ03D0921-0100
Rev.1.00
Oct 02, 2009
Description
The R2A20132SP controls two boost converters to provide a active power factor correction.
The R2A20132SP is based on R2A20112 and additional functions are Slave drop function at light load, Off time control,
Brownout, Double OVP, Dynamic under voltage protection, and ZCD signal open detection.
Also the reference voltage tolerance is improved.
The R2A20132SP adopts critical conduction mode for power factor correction and realizes high efficiency and a low
switching noise by zero current switching.
Interleaving function improve ripple current on input or output capacitor by 180 degrees phase shift.
The feedback loop open detection, over current protection are built in the R2A20132SP, and can constitute a power
supply system of high reliability with few external parts.
Features
• Maximum ratings
⎯ Supply voltage Vcc: 24 V
⎯ Operating junction temperature Tj-opr: –40 to +150°C
• Electrical characteristics
⎯ VREF output voltage VREF: 5.0 V ± 1.5%
⎯ UVLO operation start voltage Vuvlh: 10.5 V ± 0.7 V
⎯ UVLO operation shutdown voltage Vuvll: 9.3 V ± 0.5 V
⎯ UVLO hysteresis voltage Hysuvl: 1.2 V ± 0.5 V
• Functions
⎯ Boost converter control with critical conduction mode
⎯ Interleaving control with slave drop (SD) function at light load
⎯ Off time control (OTC) function: Switching loss is decreased at light load.
⎯ Brownout function
⎯ Double OVP: Two line sense for over voltage protection
⎯ Dynamic under voltage protection (DUVP): Sense for under voltage protection
⎯ AC Hi voltage detection (ACDET)
⎯ Feedback loop open detection
⎯ ZCD signal open detection
⎯ Master and Slave independenced over current protection
⎯ 140 μs restart timer
⎯ Package lineup: Pb-free SOP-20
Ordering Information
Part No.
R2A20132SPW0
Package Name
FP-20DAV
Package Code
PRSP0020DD-B
Taping Spec.
2000 pcs./one taping product
REJ03D0921-0100 Rev.1.00 Oct 02, 2009
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