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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 150C * 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 Package Code PRSP0016DH-B Taping Spec. 2000 pcs./one taping product
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 1 of 7
R2A20115SP
System Diagram
Rec+
150 H
B+
680k To FB 680k B+ OUT (385V dc)
T1
Q1 Rec-
From OUT 470F x2 (450V)
from auxiliary
24V 4.7
VRB1
GND
VCC
16
68k
RT 9
VREF
5V Internal Bias
3.6V 0.65V
27.5V
H L
10.4V
UVLO
8.9V
5V VREF Generator
VREF In GOOD Out
6
VREF
0.1
CT 10
390p
DELAY
Shut down
UVL
VREF CAO 6800p 2.2k
7
470p
Logic
Gate Driver +/- 1.0A (PEAK)
To Q1 gate
1
VREF
OUT
2M 915k
1000p
IAC
CAMP
12
Multiplier
SS
CAI
2.4k VREF 22k 100
5
CLIMIT
1.5k 0.0165 (5W) 2.4k 110k 0.33 100p
CLIMIT
8
CGND EO
51k
4
14
2.48V
EO Discharge
OUT Disable
VREF
VREF
1 0.1
47k
VAMP FB 13
FB
OVP Block
15
28A
0.47
SS
From VRB1(B+ monitor1)
720k
0.52V
2
AC-Det
GND
PFC-ON
1
11
0.1
Circuit Ground
14k
0.81V 0.79V
3
DELAY
0.22
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 2 of 7
R2A20115SP
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
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 3 of 7
R2A20115SP
Absolute Maximum Ratings
(Ta = 25C)
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 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 Tj-opr 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 +150 -55 to +150 Unit V A A V V V V V V A mA mA W C C Note 3 4 5
6
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 ja jc Note SOP16 120C/W -- -- 35C/W 40 x 40 x 1.6 [mm], Mounted on a glass epoxy printed board with 10% wiring density Infinite heat sink
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 4 of 7
R2A20115SP
Electrical Characteristics
(Ta = 25C, VCC = 12 V, RT = 27 k, CT = 1000 pF)
Supply Item Start threshold Shutdown threshold UVLO hysteresis Startup current Is temperature stability Operating current VREF Output voltage Line regulation Load regulation Temperature stability Initial accuracy fout temperature stability fout voltage stability CT peak voltage Ramp valley voltage RT voltage Soft start Current limit VAMP 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 1. Design spec. 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 9.7 8.4 1.0 75 -- 2.4 4.92 -- -- -- 55.0 -- -1.5 -- -- 1.18 17.0 -15 -- 2.44 -0.3 -- 4.75 -- -180 -- 120 -10 -- 4 -- -150 67 420 Typ 10.4 8.9 1.5 100 -0.3 3.4 5.00 5 5 80 61.0 0.1 0.5 3.6 0.65 1.22 28.0 0 200 2.48 -0.15 53 4.9 0.1 -120 350 180 -- 55 4.5 0.1 -105 105 660 Max 11.1 9.4 2.0 145 -- 4.4 5.08 20 20 -- 67.0 -- 1.5 4.0 -- 1.26 39.0 15 300 2.52 0 -- 5.05 0.3 -80 -- 240 0 -- 5 0.3 -67 150 890 Unit V V V A %/C mA V mV mV ppm/C kHz %/C % V V V A mV ns V A dB V V A A A/V mV dB V V A A A/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 125C * Measured pin: OUT Ta = -40 to 125C * VCC = 12 V to 18 V *1 *1 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
1 1
Oscillator
CAMP
CAO = 2.5 V CAO = 2.5 V *1
Note:
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 5 of 7
R2A20115SP
Electrical Characteristics (cont.)
(Ta = 25C, VCC = 12 V, RT = 27 k, CT = 1000 pF)
IAC/ Multiplier Item IAC pin voltage Imo current 1 Imo current 2 Imo current 3 Imo current 4 OUT Minimum duty cycle Maximum duty cycle Rise time Fall time Low voltage Symbol Viac Imo1 Imo2 Imo3 Imo4 Dmin-out Dmax-out tr-out tf-out Vol1-out Vol2-out Vol3-out Voh1-out Voh2-out Vshut Vres Ishut Von-pfc Voff-pfc Vd-pfc Ipfc-on dVovps dVovpr dVdovp Vfbls Isrc-delay Isnk-delay Min 0.4 -57 -158 -35.5 -98.5 -- 90 -- -- -- -- -- 11.5 10.0 3.30 -- 45 0.73 0.71 1.10 -1.0 0.125 0.010 0.045 0.47 -50.5 -- Typ 1.4 -47 -125 -30 -80 -- 95 30 30 0.08 0.5 0.07 11.9 11.0 4.00 -- 95 0.81 0.79 1.20 -0.2 0.188 0.050 0.065 0.52 -45.5 815 Max 2.0 -37 -91.5 -24.5 -61.5 0 98 100 100 0.2 2.0 0.7 -- -- 4.70 4.0 190 0.89 0.86 1.30 1 0.250 0.100 0.085 0.57 -40.5 -- Unit V A A A A % % ns ns V V V V V V V A V V V A V V V V A A Test Conditions IAC = 100 A EO = 2.5 V, IAC = 150 A PFC-ON = 1.2 V EO = Vcaoh, IAC = 150 A PFC-ON = 1.2 V EO = 2.5 V, IAC = 375 A PFC-ON = 2.5 V EO = Vcaoh, IAC = 375 A 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) Input: DELAY Input: Vcc VCC = 9 V Input pin: PFC-ON Input pin: PFC-ON Input pin: DELAY PFC-ON = 2 V Input pin: FB *2 Input pin: FB * Input pin: FB * Input pin: FB DELAY = 1 V RT = 27 k DELAY = 1 V 1 RT = 27 k *
2
High voltage Shut down Shut down voltage Reset voltage Shut down current PFC enable voltage PFC disable voltage PFC disable delay threshold voltage Input current B+ OVP set voltage B+ OVP reset voltage Dynamic OVP set/reset voltage FB low set voltage DELAY source current DELAY sink current
Supervisor
2
Notes: 1. Design spec. 2. dVovps = Vovps - Vref x 0.5 dVovpr = Vovpr - Vref x 0.5 dVdovp = Vdovp - Vref x 0.5
Vdovp Vovps FB Vfbls Vovpr Vref x 0.5
OUT Isnk-eo EO Current 0 A Isrc-eo
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 6 of 7
R2A20115SP
Package Dimensions
JEITA Package Code P-SOP16-5.5x10.06-1.27 RENESAS Code PRSP0016DH-B Previous Code FP-16DAV MASS[Typ.] 0.24g
*1
D F 9
16
NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET.
bp
HE
E
Index mark
*2
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
8 bp x M L1
Reference Dimension in Millimeters Symbol
c
A1
y
L
Detail F
D E A2 A1 A bp b1 c c1 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
REJ03D0923-0100 Rev.1.00 Oct 06, 2009 Page 7 of 7
A
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