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PDF R2A20133DSP Data sheet ( Hoja de datos )

Número de pieza R2A20133DSP
Descripción Critical Conduction Mode PFC Control IC
Fabricantes Renesas Technology 
Logotipo Renesas Technology Logotipo



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Preliminary Datasheet
R2A20133DSP
Critical Conduction Mode PFC Control IC
R03DS0052EJ0300
Rev.3.00
Feb 27, 2013
Description
The R2A20133D controls a boost converter to provide an active power factor correction.
The R2A20133D 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 R2A20133D,
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: 9.5 V 0.7 V
UVLO operation shutdown voltage VL: 8.5 V 0.4 V
UVLO hysteresis voltage Hysuvl: 1.0 V 0.4 V
Functions
Boost converter control with critical conduction mode
Two mode overvoltage protection and OVP2
Mode 1: Dynamic OVP corresponding to a voltage rise by load change
Mode 2: Static OVP corresponding to overvoltage in stable.
OVP2: OVP2 senses the PFC output voltage by independence pin.
Feedback loop, open detection
Overcurrent protection
Dynamic UVP corresponding to a voltage fall by load change
Frequency limiter, adjustable
Zero Current Detect (ZCD) delay time, adjustable
CS pin's open detection
Package lineup: Pb-free SOP-8 (JEDEC)
Ordering Information
Part No.
R2A20133DSP#W5
Package Name
Package Code
PRSP0008DJ-A
Package
Abbreviation
SP
Taping Abbreviation
(Quantity)
W (2,500 pcs/reel)
R03DS0052EJ0300 Rev.3.00
Feb 27, 2013
Page 1 of 13

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R2A20133DSP pdf
R2A20133DSP
Preliminary
Electrical Characteristics
(Ta = 25°C, VCC = 12 V, CS = 0.04 V, FB = 2 V, COMP: Open, OVP2 = 1 V, RRT = 200 k)
Item
Symbol Min Typ Max Unit Test Conditions
Supply
UVLO turn-on threshold Vuvlh
8.8 9.5 10.2 V
UVLO turn-off threshold Vuvll
8.1 8.5 8.9 V
UVLO hysteresis
Hysuvl
0.6 1.0 1.4 V
Standby current
Istby
— 100 200 A VCC = Vuvlh – 0.2 V
Operating current
Icc
— 1.8 2.6 mA
Error
amplifier
Feedback voltage
Temperature stability
Vfb
dVfb
2.472
2.510
80
2.548
V FB-COMP short
ppm/°C Ta = –40 to +125°C *1
Input bias current
Open loop gain
Ifb
Av
–0.40
–0.15
65
–0.05
A Measured pin: FB
dB *1
Upper clamp voltage
Vclamp-comp
3.75
4.10
4.35
V FB = 2.45 V
COMP: Open
Low voltage
Vl-comp
— 0.1 0.3 V FB = 3.0 V
COMP: Open
Source current1
Isrc-comp1
–13.5
–10
–6 A FB = 1.7 V
COMP = 2.5 V
Source current2
Isrc-comp2
Isrc-comp1 Isrc-comp1 Isrc-comp1 A FB = 1.5 V
3.3 3.0 2.7
COMP = 2.5 V
Sink current
Isnk-comp
6 10 13.5 A FB = 3.5 V
COMP = 2.5 V
Transconductance
gm
RT
RAMP offset voltage
Voff_ramp
RAMP amplitude
dVramp
25 46
— 1.0
2.90 3.1
75 S FB = 2.45V 2.55 V
COMP = 2.5 V
— V *1
3.3 V *2
RT voltage
ZCD delay time
Maximum frequency
V-rt
Zcd-delay
fmax
2.5 2.6 2.7 V
— 0.87 — s RRT = 200 k*1
— 500 — kHz RRT = 200 k*1
Zero
current
detector
ZCD threshold voltage
Input bias current
CS open detect
threshold voltage
Vzcd
Ics
Vcs-open
1 3 6 mV
–58 –42 –25 A Vcs = 0 V
45 72.5 130 mV
Restart Restart time delay
Tstart
75 150 330 s FB = 2.0 V
COMP = 2.5 V
Notes: *1 Design spec
*2 dVramp = Vclamp_comp – Voff_ramp
R03DS0052EJ0300 Rev.3.00
Feb 27, 2013
Page 5 of 13

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R2A20133DSP arduino
R2A20133DSP
8. Overvoltage Protection 2 (OVP2)
OVP2
Vfb × 1.2V (Vovp2-high)
OVP2_HIGH
(Internal signal)
Preliminary
OUT
9. OVP2 Low Detection
OVP2
OVP2_LOW
(Internal signal)
COMP
OUT
0.2V (Vovp2-low)
R03DS0052EJ0300 Rev.3.00
Feb 27, 2013
Page 11 of 13

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