Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX6931 User Manual
Page 4
Typical Operating Characteristics
(V
CC
= 5.0V, V
BB
= 76V, and T
A
= +25°C, unless otherwise noted.)
MAX6921/MAX6931
20-Output, 76V, Serial-Interfaced
VFD Tube Drivers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V
BB
= 8V to 76V, V
CC
= 3V to 5.5V, V
SS
= -11V to 0V, V
BB
- V
SS
≤ 76V, T
A
= T
MIN
to T
MAX
, unless other-
wise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
3V to 4.5V
60
100
Rise and Fall Time DOUT
C
DOUT
= 10pF
(Note 2)
4.5V to 5.5V
30
80
ns
CLK Clock Period
t
CP
200
ns
CLK Pulse-Width High
t
CH
90
ns
CLK Pulse-Width Low
t
CL
90
ns
CLK Rise to LOAD Rise Hold
t
CSH
(Note 2)
100
ns
DIN Setup Time
t
DS
5
ns
3.0V to 4.5V
20
DIN Hold Time
t
DH
4.5V to 5.5V
15
ns
3.0V to 4.5V
25
120
240
DOUT Propagation Delay
t
DO
C
DOUT
= 10pF
4.5V to 5.5V
20
75
150
ns
LOAD Pulse High
t
CSW
55
ns
Note 1: All parameters are tested at T
A
= +25°C. Specifications over temperature are guaranteed by design.
Note 2: Guaranteed by design.
Note 3: Delay measured from control edge to when output OUT_ changes by 1V.
TUBE SUPPLY CURRENT (I
BB
)
vs. TEMPERATURE (OUTPUTS LOW)
MAX6921/31 toc01
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
100
80
40
60
0
20
-20
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
-40
120
V
BB
= 76V
V
BB
= 40V
V
BB
= 8V
TUBE SUPPLY CURRENT (I
BB
)
vs. TEMPERATURE (OUTPUTS HIGH)
MAX6921/31 toc02
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
100
80
40
60
0
20
-20
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
-40
120
V
BB
= 76V
V
BB
= 40V
V
BB
= 8V
LOGIC SUPPLY CURRENT (I
CC
)
vs. TEMPERATURE (OUTPUTS LOW)
MAX6921/31 toc03
TEMPERATURE (
°C)
SUPPLY CURRENT (
µ
A)
100
80
40
60
0
20
-20
50
100
150
200
250
300
350
400
0
-40
120
V
CC
= 5V, CLK = 5MHz
V
CC
= 3.3V, CLK = 5MHz
V
CC
= 5V, CLK = IDLE
V
CC
= 3.3V, CLK = IDLE