Ricoh RV5VH Power Supply User Manual


 
RV5VH3××
34
PIN DESCRIPTION
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.
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 D
OUT
Output for Voltage Detector
Symbol Item Ratings Unit
VDD VDD Pin Voltage 12 V
DOUT D
OUT Pin Voltage 12 V
VCSW CSW Pin Voltage –0.3 to VDD+0.3 V
VEXT1, 2 EXT1, 2 Pin Voltage –0.3 to VDD+0.3 V
VFB FB1,2 Pin Voltage –0.3 to VDD+0.3 V
IEXT1, 2 EXT1, 2 Output Current ±50 mA
PD Power Dissipation 300 m
Topt Operating Temperature –40 to +85 ˚C
Tstg Storage Temperature –55 to +125 ˚C
Tsolder Lead Temperature (Soldering) 260˚C 10sec
ABSOLUTE MAXIMUM RATINGS
GND=0V