|
|
PDF R2A20124ASP Data sheet ( Hoja de datos )
| Número de pieza | R2A20124ASP | |
| Descripción | (R2A20124AFP / R2A20124ASP) Synchronous Phase Shift Full-Bridge Control IC | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de R2A20124ASP (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
Preliminary Datasheet
R2A20124AFP/R2A20124ASP
REJ03D0928-0200
Synchronous Phase Shift Full-Bridge Control IC Series
Rev.2.00
Aug 03, 2010
Description
The R2A20124AFP/R2A20124ASP controls a full-bridge phase shift circuit and secondary synchronous rectification.
The R2A20124AFP/R2A20124ASP has adjustable delay time functions which make ZVS of primary side and make
loss of body diode of primary switching device minimal.
The R2A20124AFP/R2A20124ASP is based on HA16163/R2A20121. And RAMP slope compensation circuit is built-
in as an additional function. Also its output driver circuits are improved to enlarge gate drive output voltage swing from
VREF to VCC.
In addition R2A20124AFP has ON/OFF function of synchronous rectification and includes amplifier which detect input
current signal.
Features
Maximum ratings
Supply voltage Vcc: 20 V
Operating junction temperature Tj-opr: –40 to +125°C
Electrical characteristics
VFB feedback voltage VFB(–): 1.25 V 2.0%
UVLO (Under Voltage Lockout) operation start voltage VH: 8.4 V 0.7 V
UVLO operation shutdown voltage VL: 8.0 V 0.6 V
UVLO hysteresis voltage dVUVL: 0.4 V 0.1 V
Output voltage swing of OUT-A, B, C, D, and E for gate drive: GND to VCC
Functions
R2A20124AFP/R2A20124ASP
Full-bridge phase-shift switching circuit with adjustable delay times
Pulse by pulse current limit
Synchronization I/O for the oscillator
Ramp sloping adjustor
Error amplifier built-in
Soft start function
R2A20124AFP
Synchronous rectification on/off control
Remote on/off control
Amplified output of current sense input voltage: CS
Package lineup
Pb-free LQFP-40: R2A20124AFP
Pb-free SOP-20: R2A20124ASP
Ordering Information
Part No.
R2A20124AFP-W0
R2A20124AFP-W5
R2A20124AFP-U0
R2A20124AFP-U5
R2A20124ASP-W0
R2A20124ASP-W5
R2A20124ASP-U0
R2A20124ASP-U5
Package Name
FP-40EV
FP-20DAV
Package Code
PLQP0040JB-C
PRSP0020DD-B
Taping Spec.
2000 pcs./one taping product
2000 pcs./one taping product
—
—
2000 pcs./one taping product
2000 pcs./one taping product
—
—
REJ03D0928-0200 Rev.2.00
Aug 03, 2010
www.DataSheet.in
Page 1 of 12
1 page  
R2A20124AFP/R2A20124ASP
Block Diagram
R2A20124AFP
VCC
Preliminary
REMOTE
RT
VREF
40 μA
ON: 1.32 V
OFF: 1.23 V
VREF
H
UVLO
L
SYNC
SYNC I/O
OSCILLATOR
RES
Q
5V
GENERATOR
VREF H
GOOD L
START-UP
COUNTER
32 CLOCK
VREF GOOD
FB(–)
ERROR VREF
AMP
500 μA
1.25 V
VREF GOOD
DELAY
Control
Circuit
VREF
CIRCUIT
BIAS
VCC
OUT-A
VCC
DELAY-1
OUT-B
VCC
OUT-C
COMP
RAMP
RAMP-SLP
SS
COMPARATOR
VREF
1.135 V
CLAMP CIRCUIT
VREF
4V
10 μA
VREF GOOD
RES
Phase Shift
Control
Logic
Zero Delay
DELAY
Control
Circuit
VCC
DELAY-2
OUT-D
VCC
Synchronous
Rectification
Control
Logic
VCC
DELAY-3
OUT-E
OUT-F
CS-OUT
CS
×3.0
1.15 V
PULSE
BY PULSE
1.4 V
RES
SEC-CONT
2.5 kΩ
185 kΩ
10 μA
heavy load
SGND
PGND
REJ03D0928-0200 Rev.2.00
Aug 03, 2010
www.DataSheet.in
Page 5 of 12
5 Page 
R2A20124AFP/R2A20124ASP
Timing Diagram
Note: All voltage, current, time shown in the diagram is typical value.
• Full Bridge and Secondary Control: R2A20124AFP/ASP
OUT-A
OUT-B
OUT-C
OUT-D
OUT-E
OUT-F
TD1
TD2
TD3
TD1
TD2
TD3
• Full Bridge and Secondary Control: R2A20124AFP (SEC-CONT > 4.6 V)
OUT-A
TD1
OUT-B
OUT-C
TD2
OUT-D
OUT-E Low-fixed
OUT-F Low-fixed
TD1
TD2
VIN
OUT-A
DRIVE
MA
MC DRIVE OUT-C
Preliminary
OUT-B
DRIVE
RAMP
MB
MD DRIVE OUT-D
DRIVE
ME MF
DRIVE
OUT-E
External Power Stage
OUT-F
REJ03D0928-0200 Rev.2.00
Aug 03, 2010
www.DataSheet.in
Page 11 of 12
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet R2A20124ASP.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| R2A20124ASP | (R2A20124AFP / R2A20124ASP) Synchronous Phase Shift Full-Bridge 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 |