PT6311_10 Datasheet, PDF (18/22 Pages) Princeton Technology Corp – VFD Driver/Controller IC

PT6311
ABSOLUTE MAXIMUM RATINGS
(Unless otherwise stated, Ta=25℃, GND=0V)
Parameter
Symbol
Ratings
Unit
Logic supply voltage
VDD
-0.3 to +7
V
Driver supply voltage
VEE
VDD +0.3 to VDD -40
V
Logic input voltage
VI
-0.3 to VDD +0.3
V
VFD driver output voltage
VO
VEE -0.3 to VDD +0.3
V
LED driver output current
IOLED
+25
mA
Oscillation frequency
fosc
3M(Max.)
Hz
Operating temperature
Topr
-40 to +85
℃
Storage temperature
Tstg
-65 to +150
℃
VFD driver output current
IOVFD
-40 (Grid)
-15 (Segment)
mA
RECOMMENDED OPERATING RANGE
(Unless otherwise stated, Ta=25℃, GND=0V)
Parameter
Symbol
Min.
Typ.
Logic supply voltage
VDD
3
5
High-Level input voltage
VIH
0.7VDD
-
Low-Level input voltage
VIL
0
-
Driver supply voltage
VEE
VDD -35
-
POWER SUPPLY SEQUENCE
Max.
Unit
5.5
V
VDD
V
0.3VDD
V
0
V
Note: The power on/off sequence suggestion:
Applications must observe the following sequence when turning the power on or off.
• At power on: First turn on the logic system power (VDD), and then turn on the driver power (VEE).
• At power off: First turn off the driver power (VEE), and then turn off the logic system power (VDD).
V3.2
18
November 2009