Allegro UDN2962W Datasheet

GROUND

SENSE

SINK

SOURCE

THS

V

SOURCE

SINK

SENSE

THS

2962

DUAL SOLENOID/MOTOR DRIVER

—PULSE-WIDTH MODULATED CURRENT CONTROL

Using PWM to minimize power dissipation and maximize load
efficiency, the UDN2962W dual driver is recommended for impact
printer solenoids and stepper motors. It is comprised of two source/

1

2

IN

A

A

43

A

5

A

6

A

7

CC

8

B

9

B

10

B

11

IN

B

12

B

LOGIC

LOGIC

Dwg. No. D-1001

sink driver pairs rated for continuous operation to ±3 A. It can be
connected to drive two independent loads or a single load in the full­bridge configuration. Both drivers include output clamp/flyback
diodes, input gain and level shifting, a voltage regulator for single­supply operation, and pulse-width modulated output-current control
circuitry. Inputs are compatible with most TTL, DTL, LSTTL, and
low-voltage CMOS or PMOS logic.

The peak output current and hysteresis for each source/sink pair is
set independently. Output current, threshold voltage, and hysteresis are
set by the user’s selection of external resistors. At the specified output­current trip level, the source driver turns off. The internal clamp diode
then allows current to flow without additional input from the power
supply. When the lower current trip point is reached, the source driver
turns back on.

The UDN2962W is in a 12-pin single in-line power-tab package.
The tab is at ground potential and needs no insulation. For high­current or high-frequency applications, external heat sinking may be
required.

29319.12A†

Data Sheet

ABSOLUTE MAXIMUM RATINGS

at TJ ≤ +150°C

Supply Voltage, VCC. . . . . . . . . . . . . . 45 V

Peak Output Current, I
Input Voltage Range,

. . . . . . . . . . . . . . . - 0.3 V to +7.0 V

V

IN

Package Power Dissipation,

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

P

D

Operating Temperature Range,

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

T

A

Storage Temperature Range,

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

T

S

NOTE: Output current rating may be limited by
duty cycle, ambient temperature, and heat
sinking. Under any set of conditions, do not
exceed the specified peak current and a junction
temperature of +150°C.

. . . . . . . . . ±4 A

OUT

FEATURES

■ 4 A Peak Output

■ 45 V Min. Sustaining Voltage

■ Internal Clamp Diodes

■ TTL/PMOS/CMOS Compatible Inputs

■ High-Speed Chopper

Always order by complete part number: UDN2962W .

2962

DUAL PWM
SOLENOID/MOTOR DRIVER

FUNCTIONAL BLOCK DIAGRAM

(ONE OF TWO DRIVERS)

IN

GND

+

_

-10

V

CC

SOURCE

SINK

SENSE

R

S

(TYP.0.1 )

THS

LOAD

V

REF

R

H

R

T

Dwg. No. D-1002

10

R = 2.0°C/W

θJT

8

3.0°C/W HEAT SINK
R = 5.0°C/W

θJA

V

IN

High NA Off Off

Low <V
Low >V

6

12°C/W HEAT SINK

R = 14°C/W

4

2

FREE AIR, R = 38°C/W

θJA

θJA

TRUTH TABLE

SOURCE SINK

V

SENSE

/10 On On

THS

/10 Off On

THS

DRIVER DRIVER

0

ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS

25

50 75 100 125 150

TEMPERATURE IN °C

Dwg. GP-012B

115 Northeast Cutoff, Box 15036
W

Worcester, Massachusetts 01615-0036 [phone]
Copyright © 1986, 2000 Allegro MicroSystems, Inc.

2962

DUAL PWM

SOLENOID/MOTOR DRIVER

ELECTRICAL CHARACTERISTICS at TA = +25°C, TJ ≤ +150°C, VCC = 45 V, V
otherwise noted).

= 0 V (unless

SENSE

Limits

Characteristic Symbol Test Conditions Min. Typ. Max. Units

Supply Voltage Range V

CC

Operating 20 — 45 V

Output Drivers

Output Leakage Current I

Output Saturation Voltage V

Output Sustaining Voltage V

CE(SAT)

CE(sus)

Output Current Regulation ∆I

Clamp Diode Forward Voltage V

Output Rise Time t

Output Fall Time t

CEX

OUT

F

r

f

V

= 2.4 V, V

IN

V

= 2.4 V, V

IN

Source Drivers, I

Source Drivers, I

Sink Drivers, I

Sink Drivers, I

I

= ±3.0 A, L = 3.5 mH 45 — — V

OUT

V

= 0.6 V to 1.0 V, L = 3.5 mH — — ±25 %

THS

V

= 1.0 V to 2.0 V, L = 3.5 mH — — ±10 %

THS

V

= 2.0 V to 5.0 V, L = 3.5 mH — — ±5.0 %

THS

= 0 V — <-1.0 -100 µA

SOURCE

= 45 V — <1.0 100 µA

SINK

= 3.0 A — 2.1 2.3 V

LOAD

= 1.0 A — 1.7 2.0 V

LOAD

= 3.0 A — 1.7 2.0 V

LOAD

= 1.0 A — 1.1 1.3 V

LOAD

IF = 3.0 A — 1.7 2.0 V

I

= 3.0 A, 10% to 90%, Resistive Load — 0.5 1.0 µs

LOAD

I

= 3.0 A, 90% to 10%, Resistive Load — 0.5 1.0 µs

LOAD

Control Logic

Logic Input Voltage V

Logic Input Current I

V

THS/VSENSE

Ratio — At Trip Point, V

Supply Current l
(Total Device)

Propagation Delay Time t
(Resistive Load)

* Where V

SENSE

≥ V

THS

/9.5

IN(1)

V

IN(0)

IN(1)

I

IN(0)

I

THS(ON)

I

THS(HYS)

CC

pd

VIN = 2.4 V — 1.0 10 µA

VIN = 0.8 V — -20 -100 µA

V

≥ 500 mV, V

THS

V

SENSE

≥ V

THS

/9.5, V

THS

≤ V

SENSE

THS

/10.5 — -2.0 — µA

THS

= 0.6 V to 5.0 V 140 200 260 µA

= 2.0 V to 5.0 V 9.5 10 10.5 —

VIN = 2.4 V, Outputs Off — 8.0 12 mA

V

= 0.8 V, Outputs Open — 25 40 mA

IN

50% VIN to 50% V

50% V

100% V

to 50% V

IN

SENSE

to 50% V

, Turn Off — — 2.5 µs

OUT

, Turn On — — 3.0 µs

OUT

* — — 3.0 µs

OUT

NOTE: Negative current is defined as coming out of (sourcing) the specified device pin.

2.4 — — V

— — 0.8 V

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