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MAX6920
12-Output, 76V, Serial-Interfaced VFD Tube Driver
76V, 12- and 20-Output, Serial-Interfaced VFD Drivers Continuously Source 40mA with Slew-Rate Limiting to Reduce EMI
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Status
Active: In Production.
Description
The MAX6920 is a 12-output, 76V, vacuum fluorescent display (VFD) tube driver that interfaces a multiplexed VFD tube to a VFD controller such as the MAX6850-MAX6853 or to a microcontroller. The 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 compatibility with both industry-standard drivers and Maxim's VFD controllers.
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.
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 package. Maxim also offers VFD drivers with either 20 (MAX6921/MAX6931) or 32 outputs (MAX6922 and MAX6932).
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Data Sheet
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Key Features
- 5MHz Industry-Standard 4-Wire Serial Interface
- 3V to 5.5V Logic Supply Range
- 8V to 76V Grid/Anode Supply Range
- 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
- Any Output can be Used as a Grid or an Anode Driver
- Blank Input Simplifies PWM Intensity Control
- Small 20-Pin SO Package
- -40°C to +125°C Temperature Range
- Underwriters Laboratories (UL) Recognized
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Applications/Uses
- Automotive
- Avionics
- Gaming Machines
- Industrial Weighing
- Security
- Telecom
- White Goods
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Key Specifications:
| VFD Display Drivers |
| Part Number |
Controller/ Drvr. |
Display Type |
Interface |
Cursor Control |
Blink Cntrl. |
VSUPPLY
(V) |
Budgetary Price |
| See Notes |
| MAX6920 |
Driver |
Any type |
Serial 4-Wire |
No |
No |
8.0 to 76.0 |
$1.84 @1k |
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See All VFD Display Drivers (7)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX6920ATP+
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Active |
TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0009 (PDF)
Use pkgcode/variation: T2055+4*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6920ATP+T
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Active |
QFN;20 pin
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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| MAX6920AWP
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Active |
SOIC(W);20 pin;138.5 mm²
Outline Drawing:21-0042 (PDF)
Land Pattern: 90-0108 (PDF)
Use pkgcode/variation: W20-2*
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-40°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX6920AWP+
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Active |
SOIC(W);20 pin;138.5 mm²
Outline Drawing:21-0042 (PDF)
Land Pattern: 90-0108 (PDF)
Use pkgcode/variation: W20+2*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6920AWP+T
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Active |
SOIC(W);20 pin;138.5 mm²
Outline Drawing:21-0042 (PDF)
Land Pattern: 90-0108 (PDF)
Use pkgcode/variation: W20+2*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6920AWP-T
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Active |
W.SO;20 pin
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-3061
Rev 0;
2003-11-14
This page last modified: 2009-10-08
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