UCN5812EPF Allegro Micro Systems, Inc., UCN5812EPF Datasheet

UCN5812EPF

Manufacturer Part Number

UCN5812EPF

Description

BiMOS II 20-Bit serial-input, latched source drivers with active-DMOS pull-down

Manufacturer

Allegro Micro Systems, Inc.

Datasheet

1.UCN5812EPF.pdf (8 pages)

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OUT

Logic Supply Voltage, V

Driver Supply Voltage, V

Continuous Output Current Range,

Input Voltage Range,

Package Power Dissipation, P

Operating Temperature Range,

Storage Temperature Range,

* Derate at rate of 25 mW/°C above T

† Derate at rate of 15 mW/°C above T

Caution: Allegro CMOS devices have input static

protection but are susceptible to damage when

exposed to extremely high static electrical

charges.

Note that the UCN5812AF (dual in-line package)

and UCN5812EPF (PLCC package) are electri-

cally identical and share a common terminal

number assignment.

(UCN5812AF) ........................... 3.12 W*

(UCN5812EPF) ........................ 1.92 W†

OUT

.................................. -20

................................ -55

SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS

........................ -0.3 V to V

................................. -40 to +15 mA

..................... 15 V

.................... 60 V

C to +150

C to +85

= +25°C

BiMOS II 20-BIT SERIAL-INPUT, LATCHED

+ 0.3 V

Dwg. PP-059-1

OUT

5812-F

latches, and control circuitry with high-voltage bipolar source drivers and

active DMOS pull-downs for reduced supply current requirements. Although

designed primarily for vacuum-fluorescent displays, the high-voltage, high-

current outputs also allow them to be used in other peripheral power driver

applications. They are improved versions of the original UCN5812A/EP.

microprocessor-based systems. With a 5 V supply, they will operate to at

least 3.3 MHz. At 12 V, higher speeds are possible. Especially useful for

inter-digit blanking, the BLANKING input disables the output source drives

and turns on the DMOS sink drivers. Use with TTL may require the use of

appropriate pull-up resistors to ensure an input logic high.

requiring additional drive lines. Similar devices are available as the

UCN5810AF/LWF (10 bits), UCN5811A (12 bits), and UCN5818AF/EPF

(32 bits).

minimum breakdown of 60 V and are capable of sourcing up to 40 mA. The

DMOS active pull-downs are capable of sinking up to 15 mA.

0.600" (15.24 mm) row spacing. For surface mounting, the UCN5812EPF is

furnished in 28-lead plastic chip carrier (quad pack) with 0.050"(1.22 mm)

centers. Copper lead-frames, reduced supply current requirements and lower

output saturation voltages, allow continuous operation, with all outputs

sourcing 25 mA, of the UCN5812AF over the operating temperature range,

and the UCN5812EPF up to +75°C. All devices are also available for opera-

tion between -40°C and +85°C. To order, change the prefix from ‘UCN’ to

‘UCQ’.

I High-Speed Source Drivers

I 60 V Source Outputs

I To 3.3 MHz Data Input Rate

I Low Output-Saturation Voltages

I Low-Power CMOS Logic and Latches

Always order by complete part number, e.g., UCN5812AF .

The UCN5812AF/EPF combine a 20-bit CMOS shift register, data

The CMOS shift register and latches allow direct interfacing with

A CMOS serial data output enables cascade connections in applications

The output source drivers are high-voltage pnp-npn Darlingtons with a

The UCN5812AF is supplied in a 28-pin dual in-line plastic package with

I Active DMOS Pull-Downs

I Reduced Supply Current

I Improved Replacement

Requirements

for TL5812

Related parts for UCN5812EPF

UCN5812EPF Summary of contents

Page 1

... V sourcing 25 mA, of the UCN5812AF over the operating temperature range, and the UCN5812EPF up to +75°C. All devices are also available for opera- tion between -40°C and +85°C. To order, change the prefix from ‘UCN’ to ‘UCQ’. ...

Page 2

SERIAL-INPUT, LATCHED SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS LOAD SUPPLY SERIAL 2 DATA OUT OUT 3 20 OUT OUT OUT 17 OUT OUT ...

Page 3

Characteristic Symbol Output Leakage Current I CEX Output Voltage V V Output Pull-Down Current I OUT(0) Input Voltage V V Input Current I IN(1) I IN(0) Serial Data V V Maximum Clock Frequency f clk Supply Current I DD(1) I ...

Page 4

SERIAL-INPUT, LATCHED SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS CLOCK DATA STROBE BLANKING OUT N ° A. Minimum Data Active Time Before Clock Pulse (Data Set-Up Time ...

Page 5

MAX 0.015 MIN 28 14.73 12.32 1 6.35 MAX 0.39 MIN NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead spacing tolerance is non-cumulative. 3. Lead thickness is measured ...

Page 6

SERIAL-INPUT, LATCHED SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS 0.013 0.021 0.219 0.191 0.050 BSC 0.219 0.191 0.331 0.533 5.56 4.85 1.27 BSC 5.56 4.85 NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead ...

Page 7

SERIAL-INPUT, LATCHED SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from ...

Page 8

SERIAL-INPUT, LATCHED SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS * Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits. Negative current is defined as coming out of (sourcing) the output. † Complete part ...

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