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PDF R2A20113SP Data sheet ( Hoja de datos )
| Número de pieza | R2A20113SP | |
| Descripción | Critical Conduction Mode PFC Control IC | |
| Fabricantes | Renesas Technology | |
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R2A20113DD/SP
Critical Conduction Mode PFC Control IC
REJ03F0279-0100
Rev.1.00
Oct 10, 2008
Description
The R2A20113 controls a boost converter to provide a active power factor correction.
The R2A20113 adopts critical conduction mode for power factor correction and realizes high efficiency and a low
switching noise by zero current switching.
Because the zero current is detected by using the GND current, the ZCD Auxiliary winding is unnecessary.
The feedback loop open detection, two mode overvoltage protection, overcurrent protection are built in the R2A20113,
and can constitute a power supply system of high reliability with few external parts.
Features
• Absolute Maximum Ratings
Supply voltage Vcc: 24 V
Operating junction temperature Tjopr: –40 to +150°C
• Electrical characteristics
UVLO operation start voltage VH: 12 V ± 0.8 V
UVLO operation shutdown voltage VL: 9.2 V ± 0.7 V
UVLO hysteresis voltage Hysuvl: 2.8 V ± 0.7 V
• Functions
Boost converter control with critical conduction mode
Two mode overvoltage protection
Mode1: Dynamic OVP corresponding to a voltage rise by load change
Mode2: Static OVP corresponding to overvoltage in stable
Feedback loop open detection
Overcurrent protection
Package lineup: Pb-free SOP-8 (JEDEC)/DILP-8
REJ03F0279-0100 Rev.1.00 Oct 10, 2008
Page 1 of 6
1 page  
R2A20113DD/SP
www.DaEtalSehceettr4iUc.caolmCharacteristics
Supply
VREF
Item
UVLO turn-on threshold
UVLO turn-off threshold
UVLO hysteresis
Standby current
Operating current
Reference voltage
Line regulation
Error
amplifier
Load regulation
Temperature stability
Feedback voltage
Input bias current
Open loop gain
Upper clamp voltage
Low voltage
Source current
Sink current 1
Sink current 2
Transconductance
RT
Zero
current
detector
Restart
OUT
RAMP offset voltage
RT voltage
ZCD threshold voltage
Input bias current
Restart time delay
Rise time
Fall time
OUT low voltage
OUT high voltage
Over
OCP threshold voltage
current
protection
Over
Dynamic OVP threshold
voltage voltage
protection Static OVP threshold
voltage
Static OVP hysteresis
FB open detect threshold
voltage
FB open detect hysteresis
Note: 1. Design spec.
(Ta = 25°C, Vcc = 12 V, CS = GND, FB = COMP, RRT = 200 kΩ)
Symbol
Min Typ Max Unit
Test Conditions
Vuvlh
11.2 12 12.8
V
Vuvll
8.5 9.2 9.9
V
Hysuvl
2.1 2.8 3.5
V
Istby
— 95 180 µA Vcc = Vuvlh – 0.2 V
Icc — 2.6 4 mA
Vref
4.85 5.00 5.15
V Isource = 0 mA
Vref-line
— 5 20 mV Isource = 0 mA,
Vcc = 10 V to 24 V
Vref-load
dVref
— 5 20 mV Isource = 0 mA to –5 mA
— ±80 — ppm/°C Ta = –40 to 125°C *1
Vfb
2.41 2.51 2.61
V FB-COMP short
Ifb
0.1 0.25 0.75
µA Measured pin: FB
Av — 55 — dB *1
Vclamp-comp 3.75 4.0 4.25
V FB = 2.0 V, COMP: Open
Vl-comp
— 0.1 0.3
V FB = 3.0 V, COMP: Open
Isrc-comp
–185
–120
–40
µA FB = 1 V, COMP = 2.5 V
Isnkcomp1
— 120 —
µA *1
Isnkcomp2
180 300 450
µA FB = 3.5 V, COMP = 2.5 V
gm 90 150 220 µS FB = 2.5 V,
COMP = 2.5 V
Voff-ramp
— 1.0 —
V *1
V-rt
1.8 2.0 2.2
V RT = 200 kΩ
Vzcd
–8 –2 0 mV
Ics
–80 –47 –20
µA Vcs = 0 V
Tstart
tr-out
tf-out
Vol1-out
Vol2-out
Voh-out
Vocp
65 130 280
— 30 100
— 30 100
— 0.08 0.2
— 0.05 0.7
11.5 11.9
—
–0.44 –0.4 –0.36
µs FB = 2.0 V, COMP = 2.5 V
ns CL = 1000 pF, FB = 2.0 V,
COMP = 2.5 V
ns CL = 1000 pF, FB = 2.0 V,
COMP = 2.5 V
V Isink = 20 mA
V Isink = 10 mA, Vcc = 5 V
V Isource = –20 mA *1
V
Vdovp
Vsovp
Hys-sovp
Vfbopen
Hysfbopen
VFB×
1.035
VFB×
1.075
50
0.45
VFB×
1.050
VFB×
1.090
100
0.50
VFB×
1.065
VFB×
1.105
150
0.55
0.16 0.20 0.24
V
V COMP = Open
mV COMP = Open
V COMP = Open
V COMP = Open
REJ03F0279-0100 Rev.1.00 Oct 10, 2008
Page 5 of 6
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet R2A20113SP.PDF ] | |
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