Allegro UCN5842SLW, UCQ5841ELW, UCQ5841LW, UCN5842LW, UCN5842A Datasheet

The merging of low-power CMOS logic and bipolar output power
drivers permit the UCN5841/42A, UCN5841/42LW, and A5841/42SLW
integrated circuits to be used in a wide variety of peripheral power
driver applications. Each device has an eight-bit CMOS shift register
and CMOS control circuitry, eight CMOS data latches, and eight bipolar
current-sinking Darlington output drivers. The 500 mA npn Darlington
outputs, with integral transient-suppression diodes, are suitable for use
with relays, solenoids, and other inductive loads. Except for packaging
and the maximum driver output voltage ratings, the UCN5841A,
UCN5841LW, A5841SLW, UCN5842A, UCN5842LW, and A5842SLW
are identical. All package variations of the 5842 offer premium perfor­mance with a minimum output-breakdown voltage rating of 80 V (50 V
sustaining). All drivers can be operated with a split supply where the
negative supply is up to -20 V.

BiMOS II devices have higher data-input rates than the earlier
BiMOS circuits. With a 5 V logic supply, they will typically operate at
better than 5 MHz. With a 12 V supply, significantly higher speeds are
obtained. The CMOS inputs are compatible with standard CMOS and
NMOS logic levels. TTL circuits may require the use of appropriate
pull-up resistors. By using the serial data output, drivers can be
cascaded for interface applications requiring additional drive lines.

The UCN584xA devices are furnished in a standard 18-pin plastic
DIP; the UCN584xLW devices are in an 18-lead surface-mountable
wide-body SOIC package; the A584xSLW devices are provided in a 20­lead wide-body SOIC package with improved thermal characteristics.

The A5841SLW and UCN5841LW drivers are also available for
operation to a temperature of -40°C. To order, change the suffix from
‘SLW’ to ‘ELW’, or change the prefix from ‘UCN’ to ‘UCQ’.

FEATURES

■ To 3.3 MHz Data-Input Rate

■ CMOS, NMOS, TTL Compatible Inputs

■ Internal Pull-Up/Pull-Down Resistors

■ Low-Power CMOS Logic and Latches,

■ High-Voltage Current-Sink Outputs

■ Output Transient-Protection Diodes

■ Single or Split Supply Operation

■ DIP or SOIC Packaging

■ Automotive Capable

BiMOS II 8-BIT SERIAL-INPUT,

LATCHED DRIVERS

Always order by complete part number, e.g., A5841SLW .

Data Sheet

26185.14F

5841

AND

5842

SUB

V

EE

2

3

4

5

6

7

8

SERIAL

DATA OUT

SERIAL

DATA IN

OUTPUT

ENABLE

LOGIC

SUPPLY

STROBE

LOGIC

GROUND

CLOCK CLK

V

DD

ST

OE

1

SHIFT REGISTER

LATCHES

12

13

14

15

16

17

18 OUT

1

OUT

2

OUT

3

OUT

8

OUT

7

OUT

6

OUT

5

OUT

4

9

SUB

10

11

Dwg. PP-026-1

K

V

EE

UCN5841A & UCN5842A

Note that the UCN584xA (dual in-line package) and
UCN584xLW (small-outline IC package) are electrically
identical and share a common terminal number assignment.

ABSOLUTE MAXIMUM RATINGS

at 25°C Free-Air Temperature

Output Voltage, V

CE

(5841). . . . . . . . . . . . . . . . . . . . . . 50 V

(5842). . . . . . . . . . . . . . . . . . . . . . 80 V

Output Voltage, V

CE(sus)

(5841). . . . . . . . . . . . . . . . . . . . . 35 V†

(5842). . . . . . . . . . . . . . . . . . . . . 50 V†

Logic Supply Voltage Range,

V

DD

. . . . . . . . . . . . . . . . 4.5 V to 15 V

V

DD

with Reference to VEE. . . . . 25 V

Emitter Supply Voltage, V

EE

. . . . . . . -20 V

Input Voltage Range,

VIN. . . . . . . . . . . -0.3 V to VDD + 0.3 V

Continuous Output Current,

I

OUT

. . . . . . . . . . . . . . . . . . . . 500 mA

Package Power Dissipation,

P

D

. . . . . . . . . . . . . . . . . . . See Graph

Operating Temperature Range,

TA. . . . . . . . . . . . . . . . -20°C to +85°C

Storage Temperature Range,

TS. . . . . . . . . . . . . . . -55°C to +150°C

†For inductive load applications.

Caution: CMOS devices have input static protection
but are susceptible to damage when exposed to
extremely high static electrical charges.

5841

AND

5842

8-BIT SERIAL-INPUT,
LATCHED DRIVERS

115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
Copyright © 1985, 2000 Allegro MicroSystems, Inc.

FUNCTIONAL BLOCK DIAGRAM

(‘A’ Package Shown)

MOS

BIPOLAR

OUT1OUT

2

LOGIC

GROUND

STROBE

OUTPUT ENABLE
(ACTIVE LOW)

SERIAL
DATA OUT

6

8

7

Dwg. FP-013-2

9

POWER
GROUND

SUB

OUT

3

CLOCK

SERIAL

DATA IN

SERIAL-PARALLEL SHIFT REGISTER

LATCHES

V

DD

LOGIC
SUPPLY

2

3

4

18

OUT6OUT7OUT

8

17 16 13 12 11

OUT4OUT

5

15

14

5

K

10

1

50 75 100 125 150

2.5

0.5

0

ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS

AMBIENT TEMPERATURE IN °C

2.0

1.5

1.0

25

Dwg. GP-022-4

18-LEAD SOIC, R

θJA

= 80°C/W

20-LEAD SOIC, R

θJA

= 70°C/W

18-PIN DIP, R

θJA

= 60°C/W

SERIAL

DATA OUT

POWER

GROUND

SERIAL

DATA IN

OUTPUT
ENABLE

OUT

1

OUT

2

OUT

3

NO
CONNECT.

NO

CONNECT.

NC

NC

LOGIC SUPPLY

STROBE

GROUND

CLOCK

OUT

6

OUT

7

OUT

8

OUT

5

OUT

4

Dwg. PP-029-3

13

14

15

16

17

19

12

18

20

11

1

2

3

8

9

4

5

6

7

10

SUB

CLK

SUB

V

DD

ST

OE

POWER

GROUND

K

LATCHES

SHIFT REGISTER

A5841SLW

& A5842SLW

5841

AND

5842

8-BIT SERIAL-INPUT,

LATCHED DRIVERS

www.allegromicro.com

ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5 V, VEE = 0 V
(unless otherwise specified).

Applicable Limits

Characteristic Symbol Devices Test Conditions Min. Max. Unit

Output Leakage Current I

CEX

5841* V

OUT

= 50 V — 50 µA

V

OUT

= 50 V, TA = +70°C — 100 µA

5842* V

OUT

= 80 V — 50 µA

V

OUT

= 80 V, TA = +70°C — 100 µA

Collector-Emitter V

CE(SAT)

All I

OUT

= 100 mA — 1.1 V

I

OUT

= 200 mA — 1.3 V

I

OUT

= 350 mA, VDD = 7.0 V — 1.6 V

Collector-Emitter V

CE(sus)

5841* I

OUT

= 350 mA, L = 2 mH 35 — V

5842* I

OUT

= 350 mA, L = 2 mH 50 — V

Input Voltage V

IN(0)

All — 0.8 V

V

IN(1)

All VDD = 12 V 10.5 — V

V

DD

= 10 V 8.5 — V

V

DD

= 5.0 V 3.5 — V

Input Resistance R

IN

All VDD = 12 V 50 — kΩ

V

DD

= 10 V 50 — kΩ

V

DD

= 5.0 V 50 — kΩ

Supply Current I

DD(ON)

All All Drivers ON, VDD = 12 V — 16 mA

All Drivers ON, V

DD

= 10 V — 14 mA

All Drivers ON, V

DD

= 5.0 V — 8.0 mA

I

DD(OFF)

All All Drivers OFF, VDD = 12 V — 2.9 mA

All Drivers OFF, V

DD

= 10 V — 2.5 mA

All Drivers OFF, V

DD

= 5.0 V — 1.6 mA

Clamp Diode I

R

5841* VR = 50 V — 50 µA

5842* V

R

= 80 V — 50 µA

Clamp Diode V

F

All IF = 350 mA — 2.0 V

Saturation Voltage

Sustaining Voltage

Leakage Current

Forward Voltage

* Complete part number includes a prefix (A or UCN) and a suffix (A, LW, or SLW) as follows:
UCN5841A, UCN5841LW, or A5841SLW,
UCN5842A, UCN5842LW, or A5842SLW.