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UCN5811

Allegro
Part Number UCN5811
Manufacturer Allegro
Description BiMOS II 12-BIT SERIAL-INPUT / LATCHED SOURCE DRIVERS
Published Jul 6, 2005
Detailed Description 581 1 BiMOS II 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVERS Designed primarily for use with vacuum-fluorescent displays,...
Datasheet PDF File UCN5811 PDF File

UCN5811
UCN5811

Overview
581 1 BiMOS II 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVERS Designed primarily for use with vacuum-fluorescent displays, the UCN5811A smart power BiMOS II driver features low-output saturation voltages and high output switching speed.
These devices contain CMOS shift registers, data latches, and control circuitry, and bipolar high-speed sourcing outputs with DMOS active pull-down circuitry.
The high-speed shift register and data latches allow direct interface with microprocessor-based systems.
A CMOS serial data output enables cascade connections in applications requiring additional drive lines.
The UCN5811A features 60 V and -40 mA output ratings, allowing it to be used in many other peripheral power driver applications.
It can be used as an improved replacement tor the SN75512B.
The Allegro devices do not require special power-up sequencing.
The UCN5811A has been designed with BiMOS II logic for improved data entry rates.
With a 5 V supply, it will operate to at least 3.
3 MHz.
At 12 V, higher speeds are possible.
Use of this device with TTL may require the use of appropriate pull-up resistors to ensure a proper input logic high.
This device is supplied in a 20-pin plastic dual in-line package.
It can be operated over the ambient temperature range of -20°C to +85°C.
Copper lead frames and low output saturation voltages allow all outputs to be operated at 25 mA continuously at ambient temperatures of up to 76°C.
Data Sheet 26182.
20B OUT 11 OUT 12 BLANKING SERIAL DATA OUT SERIAL DATA IN LOGIC SUPPLY CLOCK STROBE OUT 1 OUT 2 1 2 3 4 BLNK 20 19 18 17 OUT 10 OUT 9 OUT 8 OUT 7 LOAD SUPPLY GROUND OUT 6 OUT 5 OUT 4 OUT 3 REGISTER LATCHES 5 6 7 8 9 10 VDD CLK ST VBB 16 15 14 13 12 11 Dwg.
PP-029-5 FEATURES ABSOLUTE MAXIMUM RATINGS at TA = 25°C Logic Supply Voltage,VDD .
15 V Driver Supply Voltage, VBB .
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60 V Continuous Output Current, IOUT -40 mA to +25 mA Input Voltage Range, VIN .
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