Data Sheet
R2A20111SP
Power Factor Correction Controller IC
Description
R03DS0092EJ0401
Rev.4.01
Jan 08, 2016
The R2A20111 is a power-factor correction (PFC) controller IC.
This IC adopts continuous conduction mode as PFC operation.
Various functions such as constant power limit, overvoltage detection, overcurrent detection, soft start, feedback-loop
disconnection detection, and holding function of PFC operation through momentary outage (PFC hold function) are
incorporated in a single chip. These functions reduce external circuitry.
The constant power limit function allows to eliminate a significant amount of coil noise which is generated due to
overcurrent detection operation in case of conventional overload.
The PFC hold function enables quick recovery by continuing PFC operation after momentary outage. The hold time
can be adjusted by an external capacitance.
Overcurrent detection pin is separately provided.
Latch mode shutdown function is incorporated.
A soft-start control pin provides for the easy adjustment of soft-start operation, and can be used to prevent overshooting
of the output voltage.
Features
•
Maximum ratings
⎯
Power-supply voltage Vcc: 24 V
⎯
Junction temperature Tj: – 40 to 125°C
•
Electrical characteristics
⎯
VREF output voltage VREF: 5.0 V ± 3%
⎯
UVLO operation start voltage VH: 10.5 ± 0.9 V
⎯
UVLO operation stop voltage VL: 9.0 ± 0.7 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
⎯
Package lineup: SOP-16
Applications
•
•
•
•
Flat panel display
Projector
Desktop PC
White goods
Ordering Information
Part No.
R2A20111SPW0
Package Name
FP-16DAV
Package Code
PRSP0016DH-B
Taping Spec.
2000 pcs./one taping product
R03DS0092EJ0401 Rev.4.01
Jan 08, 2016
Page 1 of 7
R2A20111SP
System Diagram
Rec+
150
μH
B+
680k
To FB
680k
B+ OUT
(385V dc)
T1
Q1
Rec–
From OUT
470μF
×2
(450V)
from
auxiliary
24V
4.7μ
VRB1
GND
VCC
16
62k
RT
9
VREF
5V Internal Bias
3.6V
0.65V
27.5V
H
L
10.5V
UVLO
9.0V
5V VREF
Generator
6
VREF In
GOOD Out
VREF
0.1μ
CT
10
390p
UVL
VREF
CAO
6800p 2.2k
7
470p
Logic
Gate Driver
+/– 1.0A (PEAK)
To
Q1 gate
1
VREF
OUT
82k
IAC
C
AMP
12
1.28M
1000p
Multiplier
SS
CAI
2.4k
VREF
22k
100
5
CLIMIT
10k
0.0165
(5W)
2.4k
100p
C
LIMIT
8
1.3V
CGND
EO
4
820k
14
2.5V
VREF
VREF
0.033μ
V
AMP
FB
13
2.688V
2.638V
15
B+OVP
25μA
0.47μ
SS
From
VRB1(B+ monitor1)
720k
0.52V
AC-Det
2
GND
PFC-ON
1μ
11
0.1μ
Circuit Ground
14k
0.82V
0.79V
3
DELAY
0.22μ
R03DS0092EJ0401 Rev.4.01
Jan 08, 2016
Page 2 of 7
R2A20111SP
Pin Arrangement
OUT 1
GND 2
DELAY 3
CGND 4
CAI 5
VREF 6
CAO 7
CLIMIT 8
(Top view)
16 VCC
15 SS
14 EO
13 FB
12 IAC
11 PFC-ON
10 CT
9 RT
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
OUT
GND
DELAY
CGND
CAI
VREF
CAO
CLIMIT
RT
CT
PFC-ON
IAC
FB
EO
SS
VCC
I/O
Output
—
Input/Output
Input
Input/Output
Output
Output
Input
Input/Output
Output
Input
Input
Input
Output
Output
Input
Function
Power MOS FET gate driver output
Ground
Hold time adjust and IC shutdown
Non-inverting input of current amplifier
Inverting input of current amplifier and Current output for PFC control
Reference voltage output
Current amplifier output
Overcurrent detection
Timing resistor for settings of operational frequency, and the maximum CAI pin
and DELAY pin current
Timing capacitor for operational frequency adjust
Detection of input AC voltage level
Detection of input AC waveform
Voltage amplifier input
Voltage amplifier output
Timing capacitor for soft-start time adjust
Power supply voltage input
R03DS0092EJ0401 Rev.4.01
Jan 08, 2016
Page 3 of 7
R2A20111SP
Absolute Maximum Ratings
(Ta = 25°C)
Item
Supply voltage
OUT peak current
OUT DC current
Terminal voltage
CAO voltage
EO voltage
DELAY voltage
CAI voltage
RT current
IAC current
VREF current
Power dissipation
Operating ambient temperature
Junction temperature
Storage temperature
Notes: 1.
2.
3.
4.
Symbol
VCC
Ipk-out
Idc-out
Vi-group1
Vi-group2
Vcao
Veo
Vdelay
Vi-cs
Irt
Iiac
Io-ref
Pt
Ta-opr
Tj
Tstg
Ratings
24
±1.0
±0.1
–0.3 to Vcc
–0.3 to Vref
–0.3 to Vcaoh
–0.3 to Veoh
–0.3 to +6.5
–1.5 to +0.3
–200
0.6
–5
1
–40 to +105
–40 to +125
–55 to +150
Unit
V
A
A
V
V
V
V
V
V
μA
mA
mA
W
°C
°C
°C
Note
3
4
5
6
7
Rated voltages are with reference to the GND pin.
For rated currents, inflow to the IC is indicated by (+), and outflow by (–).
The transient current when driving capacitive load.
This is the rated voltage for the following pin:
OUT.
5. This is the rated voltage for the following pins:
CGND, VREF, CLIMIT, RT, CT, PFC-ON, IAC, FB, SS
6. Thermal resistance of packages
Package
θja
θjc
Note
SOP16
120°C/W
—
40
×
40
×
1.6 [mm],
Mounted on a glass epoxy printed board with 10% wiring density
—
35°C/W
Infinite heat sink
7. Stresses exceeding the absolute maximum ratings may damage the device.
These are stress ratings only. Functional operation above the recommended operating ambient temperature
range is not implied.
Extended exposure to stresses above the absolute maximum ratings may affect device reliability.
R03DS0092EJ0401 Rev.4.01
Jan 08, 2016
Page 4 of 7
R2A20111SP
Electrical Characteristics
(Ta = 25°C, VCC = 12 V, RT = 27 kΩ, CT = 1000 pF)
Supply
Item
Start threshold
Shutdown threshold
UVLO hysteresis
Startup current
Is temperature
stability
Operating current
Output voltage
Line regulation
Load regulation
Temperature
stability
Initial accuracy
fout temperature
stability
fout voltage stability
CT peak voltage
Ramp valley voltage
RT voltage
Sink current
Threshold voltage
Delay to output
Feedback voltage
Input bias current
Open loop gain
High voltage
Low voltage
Source current
Sink current
Transconductance
Input offset voltage
Open loop gain
High voltage
Low voltage
Source current
Sink current
Transconductance
Symbol
VH
VL
dVUVL
Is
dIs/dTa
Icc
Vref
Vref-line
Vref-load
dVref
fout
dfout/dTa
fout-line
Vct-H
Vct-L
Vrt
Iss
VCL
td-CL
Vfb
Ifb
Av-v
Veoh
Veol
Isrc-eo
Isnk-eo
Gm-v
Vio-ca
Av-ca
Vcaoh
Vcaol
Isrc-ca
Isnk-ca
Gm-c
Min
9.6
8.3
1.0
140
—
3.45
4.85
—
—
—
58.5
—
–1.5
—
—
1.17
15.0
1.222
—
2.40
–0.3
—
5.2
—
–180
90
150
—
—
5.2
—
–135
67
530
Typ
10.5
9.0
1.5
200
–0.3
4.5
5.00
5
5
±80
65
±0.1
0.5
3.6
0.65
1.25
25.0
1.3
100
2.50
0
53
5.7
0.1
–120
120
200
(–10)
68
5.7
0.1
–90
90
700
Max
11.4
9.7
2.0
260
—
6.45
5.15
20
20
—
71.5
—
1.5
4.0
—
1.33
35.0
1.378
200
2.60
0.3
—
6.2
0.3
–90
180
290
0
—
6.2
0.3
–67
135
1000
Unit
V
V
V
μA
%/°C
mA
V
mV
mV
ppm/°C
kHz
%/°C
%
V
V
V
μA
V
ns
V
μA
dB
V
V
μA
μA
μA/V
mV
dB
V
V
μA
μA
μA/V
Test Conditions
VCC = 9.5 V
*
1
IAC = 0 A, CL = 0 F
Isource = 1 mA
Isource = 1 mA,
VCC = 12 V to 23 V
Isource = 1 mA to 5 mA
Ta = –40 to 125°C *
1
Measured pin: OUT
Ta = –40 to 125°C *
1
VCC = 12 V to 18 V
*
1
*
1
SS = 2 V
CLIMIT = 2 to 0 V
FB-EO Short
Measured pin: FB
*
1
FB = 2.3 V, EO: Open
FB = 2.7 V, EO: Open
FB = 1.0 V, EO = 2.5 V
FB = 4.0 V, EO = 2.5 V
FB = 2.5 V, EO = 2.5 V
*
1
*
1
VREF
Oscillator
Soft start
Current
limit
V
AMP
C
AMP
CAO = 2.5 V
CAO = 2.5 V
*
1
Note:
1. Design spec.
R03DS0092EJ0401 Rev.4.01
Jan 08, 2016
Page 5 of 7
stm32/stm8
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