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參數(shù)資料
| 型號： | R2A20115SPW0 |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 67 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 5.50 X 10.06 MM, 1.27 MM PITCH, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 122K |
| 代理商： | R2A20115SPW0 |
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 1 of 7
R2A20115SP
Power Factor Correction Controller IC
REJ03D0923-0100
Rev.1.00
Oct 06, 2009
Description
R2A20115 is a power-factor correction (PFC) controller IC, which employs continuous conduction mode as PFC
control mode. Various kinds of functions such as constant power limit, overvoltage detection, overcurrent detection,
soft start function, feedback-loop open detection, and the function holding its operation through momentary outage
(PFC hold function) are incorporated in a single chip. These functions reduce external circuitry.
The constant power limit function significantly reduces "coil vibration", which is caused by the operation of a
conventional overcurrent detection circuit when the system is overloaded.
The PFC hold function enables quick recovery by keeping PFC operation active for a certain duration (hold time)
during momentary outage/power failure. The hold time can be adjusted by an external capacitor.
This IC provides the separated pin used for detecting overcurrent, so that, the preset current value range for overcurrent
detection becomes wider than before.
The shutdown function with latch mode is also implemented.
A soft-start control pin is provided for the easy adjustment of soft-start operation.
And also the dynamic over voltage protection function integrated in this IC reduces overshooting of the output voltage,
which might occur for the duration of startup, recovery after momentary power failure and just after a sudden variation
of a load.
Features
Maximum ratings
Power-supply voltage Vcc: 24 V
Operating junction temperature Tjopr: – 40 to 150°C
Electrical characteristics
VREF output voltage VREF: 5.0 V ± 1.6%
UVLO operation start voltage VH: 10.4 ± 0.7 V
UVLO operation stop voltage VL: 8.9 ± 0.5 V
PFC output maximum ON duty Dmax-out: 95% (typ.)
Functions
Constant power limit function
Continuous conduction mode
Hold function of PFC operation on momentary outage (PFC hold function)
Overvoltage detection
Overcurrent detection
Soft start
Feedback loop disconnection detection
IC shutdown function
Dynamic OVP (Over Voltage Protection)
Package lineup: SOP-16
Applications
Flat panel display
Projector
Desktop PC
White goods
Ordering Information
Part No.
Package Name
FP-16DAV
Package Code
PRSP0016DH-B
Taping Spec.
R2A20115SPW0
2000 pcs./one taping product
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