AD6311
1/8- to 1/16 Duty VFD Controller/Driver
Absolute Maximum Ratings
Parameter
Logic supply voltage
Driver supply voltage
Logic input voltage
VFD driver output voltage
LED driver output current
VFD driver output current
Operating ambient temperature
Storage temperature
(T
A
=25℃,V
SS
=0V )
Symbol
V
DD
V
EE
V
I1
V
O2
I
O1
I
O2
T
OPT
T
STG
Rating
-0.5 to +7.0
V
DD
+0.5 to V
DD
-40
-0.5 to V
DD
+0.5
V
EE
-0.5 to V
DD
+0.5
+15
-40(grid) –15 (segment)
-25 to +85
-50 to +125
Unit
V
V
V
V
mA
mA
℃
℃
Operating Conditions
Parameter
Logic supply voltage
High-level input voltage
Low-level input voltage
Driver supply voltage
Symbol
V
DD
V
IH
V
IL
V
EE
(T
A
=0 to +70℃,V
SS
=0V)
Conditions
Min.
4.5
0.7·V
DD
0
0
Typ.
5
Max.
5.5
V
DD
0.3xV
DD
V
DD
-35
Unit
V
V
V
V
DC Characteristics
Parameter
High-level output voltage
Low-level output voltage
Low-level output voltage
High-level output current
High-level output current
Driver leakage current
Output pull-down resistor
High-level input voltage
Low-level input voltage
(T
a
=0 to 70℃, V
DD
=4.5 to 5.5V, V
SS
=0V, V
EE
=V
DD
-35V)
Symbol
V
OH1
V
OL1
V
OL2
I
OH21
I
OH22
I
OLEAK
R
L
V
IH
V
IL
Conditions
LED
1
-LED
5
,I
OH1
=-1mA
LED
1
-LED
5
,I
OL1
=12mA
D
OUT
,I
OL2
=2mA
V
O
=V
DD
-2V,Seg
1
to Seg
12
V
O
=V
DD
-2V,Grid
1
to Grid
8,
Seg
13
/Grid
16
to Seg
20
/Grid
9
V
O
=V
DD
-35V, driver off
Driver output
Min.
0.9V
DD
-3
-15
50
0.7V
DD
100
-10
150
0.3V
DD
Typ.
Max.
1
0.4
Unit
V
V
V
mA
mA
μA
kΩ
V
V
AC Characteristics
Parameter
Oscillation frequency
Maximum clock frequency
Clock pulse width
Strobe pulse width
Data setup time
Data hold time
Clock-strobe time
Wait time
Note: Refer to page 8.
(T
a
=0 to +70℃,V
DD
=4.5 to 5.5 V)
Symbol
f
OSC
f
max.
PW
CLK
PW
STB
t
SETUP
t
HOLD
t
CLK-STB
t
WAIT
Conditions
R=51 kΩ
Duty=50%
Min.
350
500
1
100
100
1
1
Typ.
500
Max.
650
1
Unit
KH
Z
MH
Z
ns
µs
ns
ns
µs
µs
CLK↑→STB↑
CLK↑→CLk↓(Note)
Anachip Corp.
www.anachip.com.tw
4/11
Rev. A5 Dec 29, 2003
ANACHIP [ ANACHIP CORP ]
