|
|
PDF R2A20118ASP Data sheet ( Hoja de datos )
| Número de pieza | R2A20118ASP | |
| Descripción | Critical Conduction Mode Interleaved PFC Control IC | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de R2A20118ASP (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
Preliminary Datasheet
R2A20118ASP
R03DS0002EJ0100
Critical Conduction Mode Interleaved PFC Control IC
Rev.1.00
Jul 14, 2010
Description
The R2A20118A controls a boost converter to provide an active power factor correction.
The R2A20118A is based on R2A20117, and additional functions are OVP2 and Brownout.
The R2A20118A 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.
The feedback loop short detection, two modes overvoltage protection and OVP2, overcurrent protection, overcurrent
timer latch protection, and ZCD open detection are built in the R2A20118A, 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
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
Brownout function
Two mode overvoltage protection and OVP2
Mode1: Dynamic OVP corresponding to a voltage rise by dynamic load change
Mode2: Static OVP corresponding to overvoltage in stable.
OVP2: OVP2 sense the PFC output voltage by independenced pin.
Feedback loop short detection
Slave ZCD signal open detection
RAMP charge current selectable function
Master and Slave independenced overcurrent protection
Overcurrent timer latch protection at abnormal operation
280 s restart timer
Soft start function for the reference voltage of Error Amp
Package: Pb-free SOP-20
Ordering Information
Part No.
Package Name
R2A20118ASPW0 FP-20DAV
Package Code
PRSP0020DD-B
Package
Abbreviation
SP
Taping Abbreviation (Quantity)
W (2,000 pcs/reel)
R03DS0002EJ0100 Rev.1.00
Jul 14, 2010
www.DataSheet.in
Page 1 of 9
1 page  
R2A20118ASP
Preliminary
Electrical Characteristics
(Ta = 25°C, VCC = 12 V, RT = 33 k, BO = 5 V, OCP = TL = OVP2 = GND, CRAMP = 820 pF, FB = COMP,
RAMP-GAIN = OPEN)
Item
Symbol
Min Typ Max Unit
Test Conditions
Supply
UVLO turn-on threshold
Vuvlh
9.8 10.5 11.2
V
UVLO turn-off threshold
Vuvll
8.8 9.3 9.8
V
UVLO hysteresis
Hysuvl
0.7 1.2 1.7
V
Standby current
Istby
— 85 170 A VCC = 8.9 V
Operating current Icc — 4.2 6.3 mA FB: Open
Brownout BO threshold voltage
Vbo
1.33 1.40 1.47
V
BO pin hysteresis current
Ibo
6.7 7.5 8.3
A BO = 1 V
VREF
Output voltage
Vref
4.925 5.00 5.075
V Isource = –1 mA
Line regulation
Vref-line
— 5 20 mV Isource = –1 mA
Vcc = 10 V to 24 V
Load regulation
Temperature stability
Vref-load
dVref
— 5 20 mV Isource = –1 mA to –5 mA
— 80 — ppm/°C Ta = –40 to 125°C *1
Error
amplifier
Feedback voltage
Input bias current
Open loop gain
Vfb
2.452 2.49 2.528
V FB-COMP short
Ifb
–0.5 –0.3 –0.1
A Measured pin: FB
FB = 3 V *1
Av
— 60 —
dB *1
Upper clamp voltage
Vclamp-comp
4.0
4.3
—
V FB = 2.0 V
COMP: Open
Low voltage
Vl-comp
— 0.1 0.3
V FB = 3.0 V
COMP: Open
Source current
Isrc-comp
— –120 —
A FB = 1.5 V
COMP = 2.5 V
Sink current
Isnk-comp
— 330 —
A FB = 3.5 V
COMP = 2.5 V
Transconductance
gm
120 200 290
s FB = 2.45V 2.55 V
COMP = 2.5 V
RAMP
RAMP charge current 1
Ic-ramp1
72 80 88
A RAMP = 0 V to 3 V
RAMP-GAIN = GND
RAMP charge current 2
Ic-ramp2
288 320 352
A RAMP = 0 V to 3 V
RAMP discharge current
Id-ramp
7 15 29 mA FB = 3 V
RAMP = 1 V
Low voltage
Vl-ramp
— 17 200 mV FB = 3 V
Isink = 100 A
RAMP
gain
control
Threshold voltage
Vth-ramp_gain 1.5 2.5 3.5
Input bias current
Iramp_gain
–14 –10
–6
AC detect low threshold voltage Vac-lo
2.9 3.2 3.5
V Measured pin RAMP-GAIN
A RAMP-GAIN = 3.5 V
V Measured pin BO
AC detect hysteresis
Hys-ac
350 390 430
mV Measured pin BO
Note: *1 Design spec.
R03DS0002EJ0100 Rev.1.00
Jul 14, 2010
www.DataSheet.in
Page 5 of 9
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet R2A20118ASP.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| R2A20118ASP | Critical Conduction Mode Interleaved PFC Control IC | Renesas Technology |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |