RENESAS R2A20115SP

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.
R2A20115SPW0
Package Name
FP-16DAV
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 1 of 7
Package Code
PRSP0016DH-B
Taping Spec.
2000 pcs./one taping product
R2A20115SP
System Diagram
150 μH
Rec+
B+
T1
680k
To FB
B+ OUT
(385V dc)
680k
Q1
Rec–
From OUT
470μF
×2
(450V)
from
auxiliary
24V
VRB1
GND
4.7μ
VCC
16
VREF
RT
68k
5V Internal Bias
3.6V
0.65V
9
10.4V
H
27.5V
5V VREF
Generator
UVLO
L
6
0.1μ
8.9V
VREF In
GOOD Out
CT
DELAY
10
Shut down
390p
UVL
VREF CAO
6800p 2.2k
Logic
7
To
Q1 gate
Gate Driver
+/– 1.0A (PEAK)
1
470p
OUT
VREF
IAC
2M
VREF
CAMP
SS
12
915k
Multiplier
1000p
CAI
2.4k
VREF
22k
5
100
CLIMIT
1.5k
CLIMIT
8
0.0165
(5W)
100p
2.4k
CGND
EO
110k
0.33μ
14
51k
1μ
4
VAMP
47k
0.1μ
EO
Discharge
2.48V
FB
OUT
Disable
VREF
VREF
OVP Block
15
13
0.47μ
SS
FB
28μA
From
VRB1(B+ monitor1)
720k
2
0.52V
GND
AC-Det
PFC-ON
1μ
14k
11
Circuit Ground
0.1μ
0.81V
0.79V
3
DELAY
0.22μ
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 2 of 7
R2A20115SP
Pin Arrangement
OUT 1
16 VCC
GND 2
15 SS
DELAY 3
14 EO
CGND 4
13 FB
CAI 5
12 IAC
VREF 6
11 PFC-ON
CAO 7
10 CT
CLIMIT 8
9 RT
(Top view)
Pin Description
Pin No.
Pin Name
I/O
1
2
3
4
5
6
7
8
9
OUT
GND
DELAY
CGND
CAI
VREF
CAO
CLIMIT
RT
Output
—
Input/Output
Input
Input/Output
Output
Output
Input
Input/Output
10
11
12
13
14
15
16
CT
PFC-ON
IAC
FB
EO
SS
VCC
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
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 3 of 7
R2A20115SP
Absolute Maximum Ratings
(Ta = 25°C)
Item
Symbol
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 junction temperature
Storage temperature
VCC
Ipk-out
Idc-out
Vi-group1
Vi-group2
Vcao
Veo
Vdelay
Vi-cs
Irt
Iiac
Io-ref
Pt
Tj-opr
Tstg
Ratings
Unit
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 +150
–55 to +150
V
A
A
V
V
V
V
V
V
μA
mA
mA
W
°C
°C
Note
3
4
5
6
Notes: 1.
2.
3.
4.
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
—
—
35°C/W
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 4 of 7
40 × 40 × 1.6 [mm],
Mounted on a glass epoxy printed board with 10% wiring density
Infinite heat sink
R2A20115SP
Electrical Characteristics
(Ta = 25°C, VCC = 12 V, RT = 27 kΩ, CT = 1000 pF)
Supply
VREF
Oscillator
Soft start
Current
limit
VAMP
CAMP
Note:
Item
Start threshold
Shutdown threshold
UVLO hysteresis
Startup current
Symbol
VH
VL
dVUVL
Is
Is temperature
stability
Operating current
dIs/dTa
Icc
2.4
Output voltage
Line regulation
Vref
Vref-line
4.92
—
Load regulation
Vref-load
—
5
20
mV
Temperature
stability
Initial accuracy
dVref
—
±80
—
ppm/°C
55.0
61.0
67.0
kHz
Measured pin: OUT
—
±0.1
—
%/°C
Ta = –40 to 125°C *
fout
dfout/dTa
Min
9.7
8.4
1.0
75
Typ
10.4
8.9
1.5
100
Max
11.1
9.4
2.0
145
Unit
V
V
V
μA
Test Conditions
VCC = 9.5 V
—
–0.3
—
%/°C
*
3.4
4.4
mA
5.00
5
5.08
20
V
mV
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
1
Ta = –40 to 125°C *
1
fout temperature
stability
fout voltage stability
fout-line
–1.5
0.5
1.5
%
VCC = 12 V to 18 V
CT peak voltage
Ramp valley voltage
RT voltage
Vct-H
Vct-L
Vrt
—
—
1.18
3.6
0.65
1.22
4.0
—
1.26
V
V
V
*1
*1
Sink current
Threshold voltage
Iss
VCL
17.0
–15
28.0
0
39.0
15
μA
mV
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
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
—
2.44
–0.3
—
4.75
—
–180
—
120
–10
—
4
—
–150
67
420
200
2.48
–0.15
53
4.9
0.1
–120
350
180
—
55
4.5
0.1
–105
105
660
300
2.52
0
—
5.05
0.3
–80
—
240
0
—
5
0.3
–67
150
890
ns
V
μA
dB
V
V
μA
μA
μA/V
mV
dB
V
V
μA
μA
μA/V
1. Design spec.
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 5 of 7
SS = 2 V
CLIMIT = 1 to –0.3 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 *1
FB = 4.0 V, EO = 2.5 V *1
FB = 2.5 V, EO = 2.5 V
*1
*1
CAO = 2.5 V
CAO = 2.5 V
*1
R2A20115SP
Electrical Characteristics (cont.)
(Ta = 25°C, VCC = 12 V, RT = 27 kΩ, CT = 1000 pF)
IAC/
Multiplier
OUT
Item
IAC pin voltage
Imo current 1
Symbol
Viac
Imo1
Min
0.4
–57
Typ
1.4
–47
Max
2.0
–37
Unit
V
μA
Imo current 2
Imo2
–158
–125
–91.5
μA
EO = Vcaoh, IAC = 150 μA
PFC-ON = 1.2 V
Imo current 3
Imo3
–35.5
–30
–24.5
μA
EO = 2.5 V, IAC = 375 μA
PFC-ON = 2.5 V
Imo current 4
Imo4
–98.5
–80
–61.5
μA
Minimum duty cycle
Maximum duty cycle
Rise time
Fall time
Low voltage
Dmin-out
Dmax-out
tr-out
tf-out
Vol1-out
Vol2-out
Vol3-out
Voh1-out
Voh2-out
—
90
—
—
—
—
—
11.5
10.0
—
95
30
30
0.08
0.5
0.07
11.9
11.0
0
98
100
100
0.2
2.0
0.7
—
—
%
%
ns
ns
V
V
V
V
V
EO = Vcaoh, IAC = 375 μA
PFC-ON = 2.5 V
CAO = 4.0 V
CAO = 0 V
CL = 1000 pF
CL = 1000 pF
Iout = 20 mA
Iout = 200 mA (Pulse test)
Iout = 10 mA, VCC = 5 V
Iout = –20 mA
Iout = –200 mA (Pulse test)
Shut down voltage
Reset voltage
Shut down current
PFC enable voltage
PFC disable voltage
Vshut
Vres
Ishut
Von-pfc
Voff-pfc
3.30
—
45
0.73
0.71
4.00
—
95
0.81
0.79
4.70
4.0
190
0.89
0.86
V
V
μA
V
V
Input: DELAY
Input: Vcc
VCC = 9 V
Input pin: PFC-ON
Input pin: PFC-ON
PFC disable delay
threshold voltage
Input current
B+ OVP set voltage
Vd-pfc
1.10
1.20
1.30
V
Input pin: DELAY
Ipfc-on
dVovps
–1.0
0.125
–0.2
0.188
1
0.250
μA
V
PFC-ON = 2 V
Input pin: FB *2
B+ OVP reset
voltage
dVovpr
0.010
0.050
0.100
V
Input pin: FB *
Dynamic OVP
set/reset voltage
FB low set voltage
dVdovp
0.045
0.065
0.085
V
Input pin: FB *
Vfbls
0.47
0.52
0.57
V
Input pin: FB
DELAY source
current
DELAY sink current
Isrc-delay
–50.5
–45.5
–40.5
μA
DELAY = 1 V
RT = 27 kΩ
Isnk-delay
—
815
—
μA
DELAY = 1 V
1
RT = 27 kΩ *
High voltage
Shut down
Supervisor
Notes: 1. Design spec.
2. dVovps = Vovps – Vref × 0.5
dVovpr = Vovpr – Vref × 0.5
dVdovp = Vdovp – Vref × 0.5
Vdovp
Vovps
Vovpr
FB
Vref × 0.5
Vfbls
OUT
Isnk-eo
EO Current
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 6 of 7
0 μA
Isrc-eo
Test Conditions
IAC = 100 μA
EO = 2.5 V, IAC = 150 μA
PFC-ON = 1.2 V
2
2
R2A20115SP
Package Dimensions
JEITA Package Code
P-SOP16-5.5x10.06-1.27
RENESAS Code
PRSP0016DH-B
*1
Previous Code
FP-16DAV
MASS[Typ.]
0.24g
D
F
16
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
9
c
HE
*2
E
bp
Index mark
Terminal cross section
( Ni/Pd/Au plating )
1
Z
8
e
*3
bp
x
Reference Dimension in Millimeters
Symbol
M
A
L1
A1
θ
y
L
Detail F
REJ03D0923-0100 Rev.1.00 Oct 06, 2009
Page 7 of 7
D
E
A2
A1
A
bp
b1
c
c1
θ
HE
e
x
y
Z
L
L1
Min Nom Max
10.06 10.5
5.50
0.00 0.10 0.20
2.20
0.34 0.40 0.46
0.15 0.20 0.25
0°
8°
7.50 7.80 8.00
1.27
0.12
0.15
0.80
0.50 0.70 0.90
1.15
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