MAX6920ATP+T [MAXIM]
Vacuum Fluorescent Driver, 12-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220-WHHC, TQFN-20;
| 型号： | MAX6920ATP+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Vacuum Fluorescent Driver, 12-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220-WHHC, TQFN-20 驱动 信息通信管理 接口集成电路 |
| 文件： | 总10页 (文件大小：1061K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
General Description
The MAX6920 is a 12-output, 76V, vacuum fluo-
rescent display (VFD) tube driver that interfaces a
multiplexed VFD tube to a VFD controller such as the
Features
● 5MHz Industry-Standard 4-Wire Serial Interface
● 3V to 5.5V Logic Supply Range
● 8V to 76V Grid/Anode Supply Range
MAX6850–MAX6853 or to
a microcontroller. The
● Push-Pull CMOS High-Voltage Outputs
● Outputs can Source 40mA, Sink 4mA Continuously
● Outputs can Source 75mA Repetitive Pulses
● Outputs can be Paralleled for Higher Current Drive
MAX6920 is also ideal for driving either static VFD tubes
or telecom relays.
Data is inputted using an industry-standard 4-wire serial
interface (CLOCK, DATA, LOAD, BLANK) for compatibil-
ity with both industry-standard drivers and Maxim’s VFD
controllers.
● Any Output can be Used as a Grid or an Anode
Driver
For easy display control, the active-high BLANK input
forces all driver outputs low, turning the display off, and
automatically puts the MAX6920 into shutdown mode.
Display intensity may also be controlled by pulse-width
modulating the BLANK input.
● Blank Input Simplifies PWM Intensity Control
● Small 20-Pin SO Package
● -40°C to +125°C Temperature Range
The MAX6920 has a serial interface data output pin,
DOUT, allowing any number of devices to be cascaded
on the same serial interface.
The MAX6920 is available in a 20-pin SO pack-
age. Maxim also offers VFD drivers with either 20
(MAX6921/MAX6931) or 32 outputs (MAX6922 and
MAX6932).
Applications
● White Goods
● Gaming Machines
● Avionics
Ordering Information
● Industrial Weighing
● Security
● Telecom
PART
TEMP RANGE
PIN-PACKAGE
MAX6920AWP
-40°C to +125°C
20 Wide SO
Pin Configuration
Typical Operating Circuit
+5V
+60V
TOP VIEW
C1
100nF
C2
100nF
V
1
2
3
4
5
6
7
8
9
20 V
CC
BB
DOUT
OUT11
OUT10
OUT9
19 DIN
20
1
18 OUT0
17 OUT1
16 OUT2
15 OUT3
14 OUT4
13 OUT5
12 LOAD
11 CLK
V
V
BB
CC
µC
MAX6920
OUT0 – OUT11
12
MAX6920AWP
19
11
12
9
VFDOUT
VFCLK
DIN
OUT8
CLK
OUT7
VFLOAD
LOAD
BLANK
OUT6
VFBLANK
BLANK
GND
10
GND 10
19-3061; Rev 1; 8/14
MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Absolute Maximum Ratings
Voltage (with respect to GND)
OUT_ Sink Current.............................................................15mA
V
V
....................................................................-0.3V to +80V
......................................................................-0.3V to +6V
CLK, DIN, LOAD, BLANK, DOUT Current ......................±10mA
Continuous Power Dissipation
BB
CC
OUT_.....................................................-0.3V to (V + 0.3V)
20-Pin Wide SO (derate 10mW/°C over T = +70°C)....800mW
A
BB
All Other Pins....................................... -0.3V to (V
+ 0.3V)
Operating Temperature Range (T
to T
)-40°C to +125°C
MAX
CC
MIN
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)
Junction Temperature......................................................+150°C
Storage Temperature Range............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Source Current ...........................................................-960mA
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, V = 8V to 76V, V
= 3V to 5.5V, T = T
to T
, unless otherwise noted.) (Note 1)
MAX
BB
CC
A
MIN
PARAMETER
Logic Supply Voltage
SYMBOL
CONDITIONS
MIN
3
TYP
MAX
5.5
76
UNITS
V
V
V
CC
Tube Supply Voltage
V
8
BB
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
= +25°C
72
350
1
170
200
650
700
2
All outputs OUT_
low, CLK = idle
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
= -40°C to +125°C
= +25°C
Logic Supply Operating Current
I
µA
mA
CC
All outputs OUT_
high, CLK = idle
= -40°C to +125°C
= +25°C
_
All outputs OUT low
= -40°C to +125°C
= +25°C
4.2
0.85
0.9
I
Tube Supply Operating Current
BB
0.53
All outputs OUT_
high
= -40°C to +125°C
= +25°C
V
- 1.1
BB
V
≥ 15V,
BB
= -40°C to +85°C
= -40°C to +125°C
= -40°C to +85°C
= -40°C to +125°C
= +25°C
V
V
V
V
- 2
BB
BB
BB
BB
I
= -25mA
OUT
- 2.5
- 3.5
- 4.0
V
V
I
≥ 15V,
BB
High-Voltage OUT_
V
V
H
= -40mA
OUT
- 1.2
BB
8V < V < 15V,
BB
= -40°C to +85°C
= -40°C to +125°C
= +25°C
V
V
- 2.5
- 3.0
BB
I
= -25mA
OUT
BB
0.75
1
V
≥ 15V,
BB
= -40°C to +85°C
= -40°C to +125°C
= +25°C
1.5
1.9
1.1
1.6
2.0
I
= 1mA
OUT
Low-Voltage OUT_
V
V
L
0.8
8V < V < 15V,
BB
= -40°C to +85°C
= -40°C to +125°C
I
= 1mA
OUT
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Electrical Characteristics (continued)
(Typical Operating Circuit, V = 8V to 76V, V
= 3V to 5.5V, T = T
to T
, unless otherwise noted.) (Note 1)
MAX
BB
CC
A
MIN
PARAMETER
SYMBOL
CONDITIONS
= 60V, C = 50pF, R = 2.3kW
MIN
TYP
0.9
MAX
2
UNITS
µs
Rise Time OUT_ (20% to 80%)
Fall Time OUT_ (80% to 20%)
t
V
V
R
BB
L
L
t
= 60V, C = 50pF, R = 2.3kW
0.6
1.5
µs
F
BB
L
L
SERIAL INTERFACE TIMING CHARACTERISTICS
LOAD Rising to OUT_ Falling
(Notes 2, 3)
(Notes 2, 3)
(Notes 2, 3)
(Notes 2, 3)
0.9
1.2
1.8
2.4
1.8
2.5
10
µs
µs
µs
µs
µA
V
Delay
LOAD Rising to OUT_ Rising Delay
BLANK Rising to OUT_ Falling
Delay
0.9
BLANK Falling to OUT_ Rising
Delay
1.3
Input Leakage Current
I
, I
0.05
IH IL
CLK, DIN, LOAD, BLANK
Logic-High Input Voltage
CLK, DIN, LOAD, BLANK
0.8 x
V
IH
V
CC
Logic-Low Input Voltage
CLK, DIN, LOAD, BLANK
0.3 x
V
V
IL
V
CC
Hysteresis Voltage
DV
0.6
V
I
DIN, CLK, LOAD, BLANK
V
–
CC
0.5
High-Voltage DOUT
Low-Voltage DOUT
V
I
I
= -1.0mA
SOURCE
V
V
OH
V
= 1.0mA
SINK
0.5
100
80
OL
3V to 4.5V
60
30
C
= 10pF
DOUT
Rise and Fall Time DOUT
ns
(Note 2)
4.5V to 5.5V
CLK Clock Period
t
200
90
90
100
5
ns
ns
ns
ns
ns
CP
CLK Pulse-Width High
CLK Pulse-Width Low
CLK Rise to LOAD Rise Hold Time
DIN Setup Time
t
CH
t
CL
t
(Note 2)
CSH
t
DS
3V to 4.5V
20
15
25
20
55
DIN Hold Time
t
ns
DH
4.5V to 5.5V
3.0V to 4.5V
4.5V to 5.5V
120
75
240
150
DOUT Propagation Delay
LOAD Pulse High
t
C
= 10pF
ns
ns
DO
DOUT
t
CSW
Note 1: All parameters are tested at T = +25°C. Specifications over temperature are guaranteed by design.
A
Note 2: Guaranteed by design.
Note 3: Delay measured from control edge to when output OUT_ changes by 1V.
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Typical Operating Characteristics
(V
= 5.0V, V = 76V, and T = +25°C, unless otherwise noted.)
BB A
CC
TUBE SUPPLY CURRENT (I
)
BB
TUBE SUPPLY CURRENT (I
)
BB
LOGIC SUPPLY CURRENT (I
)
CC
vs. TEMPERATURE (OUTPUTS LOW)
vs. TEMPERATURE (OUTPUTS HIGH)
vs. TEMPERATURE (OUTPUTS LOW)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
400
350
300
250
200
150
100
50
V
= 5V, CLK = 5MHz
CC
CC
V
= 3.3V, CLK = 5MHz
V
= 76V
BB
V
BB
= 76V
V
= 40V
V
= 8V
BB
BB
V
= 5V, CLK = IDLE
CC
V
= 3.3V, CLK = IDLE
CC
V
BB
= 40V
V
= 8V
BB
0
-40 -15
10
35
60
85 110
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY CURRENT (I
)
CC
OUTPUT VOLTAGE (V - V )
BB H
vs. TEMPERATURE (OUTPUTS HIGH)
vs. TEMPERATURE (OUTPUT HIGH)
600
550
500
450
400
350
300
250
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
= 5V, CLK = 5MHz
CC
I
= -40mA
OUT
V
BB
= 8V
V
V
= 3.3V, CLK = 5MHz
CC
= 40V
BB
V
= 5V, CLK = IDLE
V
= 76V
BB
CC
V
= 3.3V, CLK = IDLE
CC
-40
10
60
110
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT VOLTAGE
vs. TEMPERATURE (OUTPUT LOW)
OUTPUT RISE AND
FALL WAVEFORM
MAX6920 toc11
14
12
10
8
I
= 4mA
OUT
V
= 76V
BB
BLANK
2V/div
V
= 40V
BB
OUT_
20V/div
6
V
BB
= 8V
4
2
0
1µs/div
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Pin Description
PIN
1
NAME
FUNCTION
V
VFD Tube Supply Voltage
Serial-Clock Output. Data is clocked out of the internal shift register to DOUT on CLK’s rising edge.
BB
2
DOUT
OUT0 to
OUT11
3–8, 13–18
9
VFD Anode and Grid Drivers. OUT0 to OUT11 are push-pull outputs swinging from V to GND.
BB
Blanking Input. High forces outputs OUT0 to OUT11 low, without altering the contents of the output
latches. Low enables outputs OUT0 to OUT11 to follow the state of the output latches.
BLANK
10
11
GND
CLK
Ground
Serial-Clock Input. Data is loaded into the internal shift register on CLK’s rising edge.
Load Input. Data is loaded transparently from the internal shift register to the output latch while LOAD
is high. Data is latched into the output latch on LOAD’s rising edge, and retained while LOAD is low.
12
LOAD
DIN
19
20
Serial-Data Input. Data is loaded into the internal shift register on CLK’s rising edge.
Logic Supply Voltage
V
CC
CLK
SERIAL-TO-PARALLEL SHIFT REGISTER
LATCHES
DIN
LOAD
DOUT
BLANK
MAX6920
OUT0 OUT1 OUT2
OUT11
Figure 1. MAX6920 Functional Diagram
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
the shift register outputs when LOAD is high, and latches
the current state on the falling edge of LOAD.
V
BB
Each driver output is a slew-rated controlled CMOS push-
pull switch driving between V and GND. The output rise
BB
40Ω
TYPICAL
time is always slower than the output fall time to avoid
shoot-through currents during output transitions. The
output slew rates are slow enough to minimize EMI, yet
are fast enough so as not to impact the typical 100µs digit
multiplex period and affect the display intensity.
SLEW- RATE
CONTROL
OUT_
750Ω
TYPICAL
Initial Power-Up and Operation
An internal reset circuit clears the internal registers of
the MAX6920 on power-up. All outputs OUT0 to OUT11
and the interface output DOUT initialize low regardless
of the initial logic levels of the CLK, DIN, BLANK, and
LOAD inputs.
Figure 2. MAX6920 CMOS Output Driver Structure
Detailed Description
The MAX6920 is a VFD tube driver comprising a
4-wire serial interface driving 12 high-voltage rail-to-rail
output ports. The driver is suitable for both static and
multiplexed displays.
4-Wire Serial Interface
The MAX6920 uses a 4-wire serial interface with three
inputs (DIN, CLK, LOAD) and a data output (DOUT).
This interface is used to write output data to the
MAX6920 (Figure 3) (Table 1). The serial interface data
word length is 12 bits, D0–D11.
The output ports feature high current-sourcing capabili-
ty to drive current into grids and anodes of static or
multiplex VFDs. The ports also have active current sink-
ing for fast discharge of capacitive display electrodes
in multiplexing applications.
The functions of the four serial interface pins are:
● CLK input is the interface clock, which shifts data into
The 4-wire serial interface comprises a 12-bit shift reg-
ister and a 12-bit transparent latch. The shift register is
written through a clock input CLK and a data input DIN
and the data propagates to a data output DOUT. The
data output allows multiple drivers to be cascaded and
operated together. The output latch is transparent to
the MAX6920’s 12-bit shift register on its rising edge.
● LOAD input passes data from the MAX6920’s 12-bit
shift register to the 12-bit output latch when LOAD
is high (transparent latch), and latches the data on
LOAD’s falling edge.
t
CSW
LOAD
t
CSH
t
CL
t
CH
t
CP
CLK
DIN
t
DH
t
DS
D11
D10
D1
D0
t
DO
DOUT
D11
Figure 3. 4-Wire Serial Interface Timing Diagram
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Table 1. 4-Wire Serial Interface Truth Table
CLOCK
LOAD
BLANKING
INPUT
SERIAL
DATA
INPUT
DIN
SHIFT REGISTER CONTENTS
LATCH CONTENTS
OUTPUT CONTENTS
INPUT
INPUT
CLK D0 D1 D2
…
Dn-1 Dn LOAD D0 D1 D2 … Dn-1 Dn
BLANK
D0 D1 D2
…
Dn-1 Dn
H
L
H
L
R0 R1
R0 R1
…
…
…
…
…
Rn-2 Rn-1
Rn-2 Rn-1
X
R0 R1 R2
Rn-1
X
Rn
X
X
X
X
L
R0 R1 R2 … Rn-1 Rn
P0 P1 P2
Pn-1
Pn
H
P0 P1 P2
…
…
Pn-1 Pn
L
P0 P1 P2
…
…
Pn-1 Pn
X
X
X
X
X
H
L
L
L
L
L
L = Low logic level.
H = High logic level.
X = Don’t care.
P = Present state (shift register).
R = Previous state (latched).
● DIN is the interface data input, and must be stable
LOAD may be high or low during a transmission. If
LOAD is high, then the data shifted into the shift regis-
ter at DIN appears at the OUT0 to OUT11 outputs.
when it is sampled on the rising edge of CLK.
● DOUT is the interface data output, which shifts data
out from the MAX6920’ 12-bit shift register on the fall-
ing edge of CLK. Data at DIN is propagated through
the shift register and appears at DOUT (20 CLK cycles
CLK and DIN may be used to transmit data to other
peripherals. Activity on CLK always shifts data into the
MAX6920’s shift register. However, the MAX6920 only
updates its output latch on the rising edge of LOAD,
and the last 12 bits of data are loaded. Therefore, multi-
ple devices can share CLK and DIN as long as they
have unique LOAD controls.
+ t ) later.
DO
A fifth input pin, BLANK, can be taken high to force out-
puts OUT0 to OUT11 low, without altering the contents of
the output latches. When the BLANK input is low, outputs
OUT0 to OUT11 follow the state of the output latches. A
common use of the BLANK input is PWM intensity control.
Determining Driver Output Voltage Drop
The outputs are CMOS drivers, and have a resis-
tive characteristic. The typical and maximum sink and
source output resistances can be calculated from the
The BLANK input’s function is independent of the oper-
ation of the serial interface. Data can be shifted into the
serial interface shift register and latched regardless of the
state of BLANK.
V
and V electrical characteristics. Use this calculated
H
L
resistance to determine the output voltage drop at dif-
ferent output currents.
Writing Device Registers Using the 4-Wire
Serial Interface
The MAX6920 is written using the following sequence:
Output Current Ratings
The continuous current source capability is 40mA per
output. Outputs may drive up to 75mA as a repetitive
peak current, subject to the on time (output high) being
no longer than 1ms, and the duty cycle being such that
the output power dissipation is no more than the dissipa-
tion for the continuous case. The repetitive peak rating
allows outputs to drive a higher current in multiplex grid
driver applications, where only one grid is on at a time,
and the multiplex time per grid is no more than 1ms.
1) Take CLK low.
2) Clock 12 bits of data in order D11 first to D0 last
into DIN, observing the data setup and hold times.
3) Load the 12 output latches with a falling edge
on LOAD.
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Since dissipation is proportional to current squared, the
maximum current that can be delivered for a given mul-
tiplex ratio is given by:
higher for multiplexed tubes. When using multiple dri-
ver devices, try to share the average dissipation evenly
between the drivers.
1/2
I
= (grids x 1600) mA
Determine the power dissipation (P ) for the MAX6920
D
PEAK
for static tube drivers with the following equation:
where grids is the number of grids in a multiplexed display.
P
= (V
x I ) + (V x I ) + ((V - V ) x
D
CC CC BB BB BB H
This means that a duplex application (two grids) can use
a repetitive peak current of 56.5mA, a triplex application
(three grids) can use a repetitive peak current of 69.2mA,
and higher multiplex ratios are limited to 75mA.
I
x A))
ANODE
where:
A = number of anodes driven (a MAX6920 can drive a
maximum of 12).
Paralleling Outputs
I
= maximum anode current.
ANODE
Any number of outputs within the same package may be
paralleled in order to raise the current drive or reduce the
output resistance. Only parallel outputs directly (by short-
ing outputs together) if the interface control can be guar-
anteed to set the outputs to the same level. Although the
sink output is relatively weak (typically 750W), that resis-
tance is low enough to dissipate 530mW when shorted to
(V
- V ) is the output voltage drop at the given maxi-
H
BB
mum anode current I
.
OUT
A static tube dissipation example follows:
= 5V ±5%, V = 10V to 18V, A = 12, I = 2mA
OUT
V
CC
BB
P
= (5.25V x 0.7mA) + (18V x 0.9mA) + ((2.5V x
2mA/25mA) x 2mA x 12) = 24.7mW
D
an opposite level output at a V
voltage of only 20V. A
BB
Determine the power dissipation (P ) for the MAX6920
D
for multiplex tube drivers with the following equation:
safe way to parallel outputs is to use diodes to prevent the
outputs from sinking current (Figure 4). Because the out-
puts cannot sink current from the VFD tube, an external
discharge resistor, R, is required. For static tubes, R can
be a large value such as 100kW. For multiplexed tubes,
the value of the resistor can be determined by the load
capacitance and timing characteristics required. Resistor
Rl discharges tube capacitance C to 10% of the initial volt-
age in 2.3 x RC seconds. So, for example, a 15kW value
for R discharges 100pF tube grid or anode from 40V to
4V in 3.5µs, but draws an additional 2.7mA from the driver
when either output is high.
P
= (V x I ) + (V x I ) + ((V - V ) x I
CC CC BB BB BB H ANODE
D
x A) + ((V - V ) x I ))
GRID
BB
H
where:
A = number of anodes driven
G = number of grids driven
I
I
= maximum anode current
ANODE
= maximum grid current
GRID
The calculation presumes all anodes are on but only
one grid is on. The calculated P is the worst case,
D
presuming one digit is always being driven with all its
Power Dissipation
anodes lit. Actual P can be estimated by multiplying
D
Take care to ensure that the maximum package dissi-
pation ratings for the chosen package are not exceed-
ed. Over dissipation is unlikely to be an issue when
driving static tubes, but the peak currents are usually
this P figure by the actual tube drive duty cycle, taking
D
into account interdigit blanking and any PWM intensity
control.
A multiplexed tube dissipation example follows:
V
= 5V ±5%, V
= 36V to 42V, A = 6, G = 6,
= 24mA
CC
BB
I
= 0.4mA, I
ANODE
GRID
P
= (5.25V x 0.7mA)+ (42V x 0.9mA) + ((2.5V x
0.4mA/25mA) x 0.4mA x 6) +
D
MAX6920
D1
OUT0
OUTPUT
((2.5V x 24mA/25mA) x 24mA) = 99mW
D2
Thus, for a 20-pin wide SO package (T
= 1/0.01 =
OUT1
JA
+100°C/W from Absolute Maximum Ratings), the maxi-
mum allowed ambient temperature T is given by:
R
A
T
= T + (PD x T ) = +150°C = T + (0.099 x
J(MAX)
A
JA
A
+100°C/W)
Figure 4. Paralleling Outputs
So T = +140°C.
A
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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
This means that the driver can be operated in this
application up to the MAX6920’s +125°C maximum
operating temperature.
Typical Application Circuit
MAX685x
MAX6920
Power-Supply Considerations
VFDOUT
DIN
The MAX6920 operates with multiple power-supply volt-
VFCLK
VFLOAD
VFBLANK
CLK
ages. Bypass the V
and V
power-supply pins to
CC
BB
LOAD
GND with a 0.1µF capacitor close to the device. For
multiplex applications, it may be necessary to add an
additional 1µF bulk electrolytic capacitor, or greater, to
BLANK
DOUT
DOUT
DOUT
the V supply.
BB
MAX6920
Power-Supply Sequencing
The order of the power-supply sequencing is not import-
ant. The MAX6920 will not be damaged if either V
DIN
CLK
CC
LOAD
BLANK
or V
is grounded (or maintained at any other voltage
BB
below the data sheet minimum), while the other supply
is maintained up to its maximum rating. However, as with
any CMOS device, do not drive the MAX6920’s logic
inputs if the logic supply V
the input protection diodes clamp the signals.
is not operational because
CC
MAX6920
DIN
CLK
LOAD
BLANK
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character,
but the drawing pertains to the package regardless of RoHS
status.
PACKAGE
TYPE
PACKAGE
CODE
DOCUMENT
NO.
LAND
PATTERN NO.
20 SO
W20-2
21-0042
90-0108
Maxim Integrated
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www.maximintegrated.com
MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
DESCRIPTION
CHANGED
0
1
10/03
8/14
Initial Release
Removed automotive reference from data sheet
—
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2014 Maxim Integrated Products, Inc.
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