Rainbow Electronics MAX6920 User Manual
Page 2
MAX6920
12-Output, 76V, Serial-Interfaced
VFD Tube Driver
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, V
BB
= 8V to 76V, V
CC
= 3V to 5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage (with respect to GND)
V
BB .................................................................................
-0.3V to +80V
V
CC
.......................................................................-0.3V to +6V
OUT_.......................................................-0.3V to (V
BB
+ 0.3V)
All Other Pins..........................................-0.3V to (V
CC
+ 0.3V)
OUT_ Continuous Source Current ....................................-45mA
OUT_ Pulsed (1ms max, 1/4 max duty) Source Current ...-80mA
Total OUT_ Continuous Source Current .........................-540mA
Total OUT_ Continuous Sink Current .................................60mA
Total OUT_ Pulsed (1ms max, 1/4 max duty)
Source Current ............................................................-960mA
OUT_ Sink Current ..............................................................15mA
CLK, DIN, LOAD, BLANK, DOUT Current .......................±10mA
Continuous Power Dissipation
20-Pin Wide SO (derate 10mW/°C over T
A
= +70°C) ..800mW
Operating Temperature Range (T
MIN
to T
MAX
) .-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Logic Supply Voltage
V
CC
3
5.5
V
Tube Supply Voltage
V
BB
8
76
V
T
A
= +25°C
72
170
All outputs OUT_
low, CLK = idle
T
A
= -40°C to +125°C
200
T
A
= +25°C
350
650
Logic Supply Operating Current
I
CC
All outputs OUT_
high, CLK = idle
T
A
= -40°C to +125°C
700
µA
T
A
= +25°C
1
2
All outputs OUT_
low
T
A
= -40°C to +125°C
4.2
T
A
= +25°C
0.53
0.85
Tube Supply Operating Current
I
BB
All outputs OUT_
high
T
A
= -40°C to +125°C
0.9
mA
T
A
= +25°C
V
BB
- 1.1
T
A
= -40°C to +85°C
V
BB
- 2
V
BB
≥ 15V,
I
OUT
= -25mA
T
A
= -40°C to +125°C
V
BB
- 2.5
T
A
= -40°C to +85°C
V
BB
- 3.5
V
BB
≥ 15V,
I
OUT
= -40mA
T
A
= -40°C to +125°C
V
BB
- 4.0
T
A
= +25°C
V
BB
- 1.2
T
A
= -40°C to +85°C
V
BB
- 2.5
High-Voltage OUT_
V
H
8V < V
BB
< 15V,
I
OUT
= -25mA
T
A
= -40°C to +125°C
V
BB
- 3.0
V
T
A
= +25°C
0.75
1
T
A
= -40°C to +85°C
1.5
V
BB
≥ 15V,
I
OUT
= 1mA
T
A
= -40°C to +125°C
1.9
T
A
= +25°C
0.8
1.1
T
A
= -40°C to +85°C
1.6
Low-Voltage OUT_
V
L
8V < V
BB
< 15V,
I
OUT
= 1mA
T
A
= -40°C to +125°C
2.0
V