RV5VH Datasheet, PDF (35/47 Pages) RICOH electronics devices division – DC/DC CONVERTER CONTROLLER

RV5VH3××
PIN DESCRIPTION
Pin No. Symbol
Description
1
CSW Control Switch for DC/DC1, 2
2
FB1 Input for DC/DC1 Error Amplifier
3
VDD Power Supply for Device Itself. Sensing Pin for Reset.
4
EXT1 External Transistor Drive Pin for DC/DC1 (CMOS Output)
5
GND Ground Pin
6
EXT2 External Transistor Drive Pin for DC/DC2 (CMOS Output)
7
FB2 Input for DC/DC2 Error Amplifier
8
DOUT Output for Voltage Detector
ABSOLUTE MAXIMUM RATINGS
Symbol
VDD
DOUT
VCSW
VEXT1, 2
VFB
IEXT1, 2
PD
Topt
Tstg
Item
VDD Pin Voltage
DOUT Pin Voltage
CSW Pin Voltage
EXT1, 2 Pin Voltage
FB1,2 Pin Voltage
EXT1, 2 Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Tsolder Lead Temperature (Soldering)
Ratings
12
12
–0.3 to VDD+0.3
–0.3 to VDD+0.3
–0.3 to VDD+0.3
±50
300
–40 to +85
–55 to +125
260˚C 10sec
GND=0V
Unit
V
V
V
V
V
mA
mΩ
˚C
˚C
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under
any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation
above these absolute maximum ratings may cause degradation or permanent damage to the device. These
are stress ratings only and do not necessarily imply functional operation below these limits.
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