MAX6921AQI(2003) 查看數據表（PDF） - Maxim Integrated
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MAX6921AQI Datasheet PDF : 14 Pages
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20-Output, 76V, Serial-Interfaced
VFD Tube Drivers
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND)
VBB .........................................................................-0.3V to +80V
VCC ...........................................................................-0.3V to +6V
VSS (MAX6931 only) ...............................................-12V to +0.3V
VBB - VSS (MAX6931 only) .....................................-0.3V to +80V
OUT_ (MAX6921 only) ..................(GND - -0.3V) to (VBB + 0.3V)
OUT_ (MAX6931 only) ....................(VSS - -0.3V) to (VBB + 0.3V)
All Other Pins..............................................-0.3V to (VCC + 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 .................................90mA
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 (TA = +70°C)
28-Pin TSSOP (derate 12.8mW/°C
over +70°C)................................................................1025mW
28-Pin Wide SO (derate 12.5mW/°C
over +70°C)................................................................1000mW
28-Pin PLCC (derate 10.5mW/°C
over +70°C)..................................................................842mW
Operating Temperature Range
(TMIN to TMAX) ...............................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, VBB = 8V to 76V, VCC = 3V to 5.5V, VSS = -11V to 0V, VBB - VSS ≤ 76V, TA = TMIN to TMAX, unless other-
wise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Logic Supply Voltage
VCC
Tube Supply Voltage
VBB
3
5.5
V
8
76
V
Bias Supply Voltage
(MAX6931 Only)
VSS
-11
0
V
Total Supply Voltage
(MAX6931 Only)
VBB - VSS
76
V
All outputs OUT_ low, TA = +25°C
78
170
Logic Supply Operating Current
ICC
CLK = idle
TA = -40°C to +125°C
All outputs OUT_ high, TA = +25°C
200
µA
540
900
CLK = idle
TA = -40°C to +125°C
1000
Tube Supply Operating Current
All outputs OUT_ low TA = +25°C
IBB
TA = -40°C to +125°C
All outputs OUT_ high TA = +25°C
TA = -40°C to +125°C
1.65
3.0
6.9
mA
0.85
1.3
1.4
All outputs OUT_ low TA = +25°C
-0.8 -0.38
Bias Supply Operating Current
(MAX6931 Only)
ISS
TA = -40°C to +125°C
All outputs OUT_ high TA = +25°C
-1.9
-1.4 -0.87
mA
TA = -40°C to +125°C -1.5
VBB ≥ 15V
IOUT = -25mA
TA = +25°C
TA = -40°C to +85°C
TA = -40°C to +125°C
VBB - 1.1
VBB - 2
VBB - 2.5
High-Voltage OUT_
VH
VBB ≥ 15V
IOUT = -40mA
TA = -40°C to +85°C
TA = -40°C to +125°C
VBB - 3.5
VBB - 4.0
V
8V < VBB < 15V
IOUT = -25mA
TA = +25°C
TA = -40°C to +85°C
TA = -40°C to +125°C
VBB - 1.2
VBB - 2.5
VBB - 3.0
2 _______________________________________________________________________________________
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