PFC Controller. R2A20112ASP Datasheet

R2A20112ASP Controller. Datasheet pdf. Equivalent

R2A20112ASP Datasheet
Recommendation R2A20112ASP Datasheet
Part R2A20112ASP
Description Critical Conduction Mode Interleaved PFC Controller
Feature R2A20112ASP; Preliminary Data Sheet R2A20112ASP R03DS0047EJ0201 Critical Conduction Mode Interleaved PFC Contr.
Manufacture Renesas
Datasheet
Download R2A20112ASP Datasheet




Renesas R2A20112ASP
Preliminary Data Sheet
R2A20112ASP
R03DS0047EJ0201
Critical Conduction Mode Interleaved PFC Control IC
Rev.2.01
Jan 08, 2016
Description
The R2A20112A controls a boost converter to provide an active power factor correction.
The R2A20112A adopts critical conduction mode for power factor correction and realizes high efficiency and a low
switching noise by zero current switching.
Interleaving function improves ripple current on input or output capacitor by 180 degrees phase shift.
Soft-star, the feedback loop short detection, two mode over-voltage-protection, over-current-protection, Over current
ON/OFF timer protection for boost Diode short and slave ZCD open detection are built in the R2A20112A, and can
constitute a power supply system of high reliability with few external parts.
Features
Absolute Maximum Ratings
Supply voltage Vcc: 24 V
Junction temperature Tj: –40 to +150°C
Electrical Characteristics
VREF output voltage Vref: 5.0 V ± 1.5%
UVLO operation start voltage Vuvlh: 10.5 V ± 0.7 V
UVLO operation shutdown voltage Vuvll: 9.3 V ± 0.5 V
UVLO hysteresis voltage Hysuvl: 1.2 V ± 0.5 V
Functions
Boost converter control with critical conduction mode
Interleaving control
Soft start function for the reference voltage of Error Amp
Two mode PFC output Over-voltage-protection
Mode1: Dynamic OVP corresponding to a voltage rise by dynamic load change.
Mode2: Static OVP corresponding to over-voltage in stable.
PFC output Dynamic-under-voltage-protection (DUVP)
Feedback loop open/short detection
Master and Slave independence over-current-protection
280 μs restart timer
Slave ZCD signal open detection
Over current ON/OFF timer protection for boost Diode short
Package
Pb-free SOP-16
Ordering Information
Part No.
R2A20112ASPW0
Package Name
FP-16DAV
Package Code
PRSP0016DH-B
Package
Abbreviation
SP
Taping Abbreviation
(Quantity)
W (2,000 pcs/reel)
R03DS0047EJ0201 Rev.2.01
Jan 08, 2016
Page 1 of 8



Renesas R2A20112ASP
R2A20112ASP
Pin Arrangement
ZCD-M 1
ZCD-S 2
TM 3
VREF 4
SGND 5
RAMP 6
RT 7
COMP 8
(Top view)
16 VCC
15 GD-M
14 PGND
13 GD-S
12 OCP-M
11 OCP-S
10 SS
9 FB
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
ZCD-M
ZCD-S
TM
VREF
SGND
RAMP
RT
COMP
FB
SS
OCP-S
OCP-M
GD-S
PGND
GD-M
VCC
Function
Master converter zero current detection input terminal
Slave converter zero current detection input terminal
Over current ON/OFF timer protection terminal
Reference voltage output terminal
Signal Ground
Ramp waveform setting terminal
Oscillator frequency setting terminal
Error amplifier output terminal
Error amplifier input terminal
Soft start time setting terminal
Slave converter overcurrent detection terminal
Master converter overcurrent detection terminal
Slave converter Power MOSFET drive terminal
Power Ground
Master converter Power MOSFET drive terminal
Supply voltage terminal
Preliminary
R03DS0047EJ0201 Rev.2.01
Jan 08, 2016
Page 2 of 8



Renesas R2A20112ASP
R2A20112ASP
Block Diagram
Preliminary
ZCD-M
ZCD-S
10μA 10μA
Vref
ZCD COMP1
Clamp
-0.1V ~ 4.5V +
Vzcd_lo=1.3V
300mVhys ZCD COMP2
Clamp
-0.1V ~ 4.5V +
Vref
50μA
Hi: ON
TM +
Vtm=3.6V
2.2Vhys
VREF
40μA 5μA
VREF: 5V
SGND
RT Iramp
Tstart
Vref
Iramp
VREF: 5V
UVLO
ON: 10.5V
OFF: 9.3V
VCC
VCC
GD-M
GD-S
Logic
Vref
5μA
OCP COMP1
M-OCP
+
OCP COMP2
S-OCP
+
5μA
Stop GD
SW COMP
0.3V
GD Disable
OVP BLOCK
COMP
Discharge
FB
+
OCP-M
OCP-S
Dynamic UVP
+
Vfb
×0.93V
Error Amp
+
Vfb=2.49V
FB
Vref
10μA
SS
RAMP
COMP
RAMP Level shift
0.9V (Design SPEC)
UVL
FBLOW
4.3V
PGND
R03DS0047EJ0201 Rev.2.01
Jan 08, 2016
Page 3 of 8







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