Allegro UGQ5140K Datasheet

5140

PROTECTED POWERHALL

®

SENSOR:
LAMP/SOLENOID DRIVER

5140

Data Sheet

27695*

X

V

CC

1

Pinning is shown viewed from branded side.

234

SUPPLY

OUTPUT

DIODE

GROUND

Dwg. PH-001

ABSOLUTE MAXIMUM RATINGS

at T

= +25°C

A

PROTECTED POWERHALL

®

SENSOR

— LAMP/SOLENOID DRIVER

The UGQ5140K unipolar Hall effect switch is a monolithic
integrated circuit designed for magnetic actuation of low-power
incandescent lamps or inductive loads such as relays or solenoids.
Included on chip is a Darlington power output that is capable of con­tinuously sinking in excess of 300 mA. Internal protection circuitry
limits surge (lamp turn-ON) or fault currents to approximately 900 mA.
A sensitive magnetic threshold allows the device to be used in con­junction with inexpensive magnets or in applications that require
relatively large operating distances.

Each sensor/driver includes a magnetic sensing Hall voltage
generator, operational amplifier, Schmitt trigger, voltage regulator, and
an open-collector, high-gain Darlington power output stage. The
regulator allows use of the device with supply voltages of 4.5 V to
28 V. On-chip compensation circuitry stabilizes switch-point perfor­mance over temperature. The magnetic operation of this device is
similar to that of the A3141E— Hall-effect switch.

The sensitive magnetic switch point coupled with the power output,
current limiting, and thermal limiting circuitry allow the UGQ5140K to
magnetically actuate various loads without requiring any external
components.

The UGQ5140K is rated for operation over an extended tempera­ture range of -40°C to +85°C. It is supplied in a four-pin mini-SIP
plastic package, 0.200" (5.08 mm) wide, 0.130" (3.30 mm) high, and

0.060" (1.54 mm) thick.

Supply Voltage, VCC . . . . . . . . . . . . . . 28 V

Reverse Battery Voltage, V
Output OFF Voltage, V
Over-Current Protected Output Voltage,

V

. . . . . . . . . . . . . . . . . . . . . . . . 25 V

OUT

Output ON Current, I

Magnetic Flux Density, B . . . . . . Unlimited

Package Power Dissipation,

P

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

D

Operating Temperature Range,

T

. . . . . . . . . . . . . . . . . -40°C to +85°C

A

Storage Temperature Range,

T

. . . . . . . . . . . . . . . . -65°C to +150°C

S

* Output is current limited at approximately 900
mA and junction temperature limited if current in
excess of 900 mA is attempted. See Circuit
Description and Applications for further
information.

OUT

OUT

. . . . . -45 V

RCC

. . . . . . . . . . 45 V

. . . . . . . 900 mA*

FEATURES

■ Magnetically Actuated Power Switch

■ Temperature-Compensated Switch Points

■ High Current-Sink Capability

300 mA Continuous
900 mA Peak Current Limit

■ Output Short-Circuit Protection

■ Low Quiescent Standby Current

■ Linear Thermal Limiting

■ Automotive Temperature Range

-40°C to +85°C, Operating

■ Internal Inductive Flyback/Clamp Diode Protection

■ Reverse Battery Protection

■ Low-Profile 4-Pin Mini-SIP

Always order by complete part number: UGQ5140K .

5140

ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS

1

3

2

4

PROTECTED POWERHALL

®

SENSOR:
LAMP/SOLENOID DRIVER

FUNCTIONAL BLOCK DIAGRAM

V

CC

REV. BATTERY
PROTECTION

REG.

X

THERMAL

LIMIT

CURRENT

LIMIT

ELECTRICAL CHARACTERISTICS at T

DIODE

OUTPUT

<<1Ω

GROUND

Dwg. FH-001

= -40°C to +85°C, V

A

1.0

0.8

0.6

0.4

0.2

0

-50

= 4.5 V to 24 V

CC

FREE AIR, R = 177°C/W

θJA

25

0-25

AMBIENT TEMPERATURE IN °C

50 75 100 125 150

(unless otherwise noted).

Limits

Characteristic Symbol Test Conditions Min. Typ. Max. Units

Supply Voltage Range V
Output Leakage Current I
Output Sustaining Voltage V
Output Saturation Voltage V

OUT(SUS)

OUT(SAT)

Over-Current Limit I
Output Rise Time t
Output Fall Time t
Supply Current I
Diode Forward Voltage V
Diode Leakage Current I
Thermal Limit T

CC

OUT

LIMIT

r

f

CC

F

R

LIMIT

Operating 4.5 12 24 V
V

= 24 V — <1.0 10 µA

OUT

I

= 100 mA 35 — — V

OUT

I

= 300 mA, VCC = 24 V — 0.84 1.2 V

OUT

VCC = V

= 12 V, B ≥ 500 G — 900 — mA

OUT

VCC = 12 V, VBB = 18 V, — 0.04 2.0 µs
RL = 1.1 kΩ, CL = 20 pF — 0.04 2.0 µs
Output OFF — 5.5 10 mA
IF = 300 mA — 1.1 1.5 V
VR = 35 V — <1.0 50 µA
VCC = V
I

OUT

= 12 V, B ≥ 500 G,

OUT

= 10 mA — 165 — °C

Dwg. GH-001

Typical Data is at TA = +25°C and is for design information only.

MAGNETIC CHARACTERISTICS at VCC = 4.5 V to 24 V.

Characteristic Symbol Min. Typ. Max. Min. Typ. Max. Units

Magnetic Operate Point B
Magnetic Release point B
Hysteresis B

OP

RP

hys

TA = +25°CT

= -40°C to +85°C

A

70 155 200 45 — 240 G
50 100 180 25 — 220 G
20 55 — 20 — — G

115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]

W
Copyright © 1991, 1995 Allegro MicroSystems, Inc.

5140

PROTECTED POWERHALL

®

SENSOR:
LAMP/SOLENOID DRIVER

TYPICAL OPERATING CHARACTERISTICS

1000

950

900

850

PEAK CURRENT LIMIT IN mA

800

750

-20-40

0

AMBIENT TEMPERATURE IN °C

25 85 105 125

55

Dwg. GH-004

1.0

0.9

0.8

0.7

SATURATION VOLTAGE IN VOLTS

0.6

-40

-20 0 25 55

AMBIENT TEMPERATURE IN °C

I = 300 mA

OUT

Dwg. GH-002A

85

180

160

OPERATE POINT

140

120

SWITCH POINT IN GAUSS

100

80

-40

-20 0 25 55

AMBIENT TEMPERATURE IN °C

I = 10 mA

OUT

RELEASE POINT

85

Dwg. GH-006A

9.0

8.0

7.0

6.0

SUPPLY CURRENT IN mA

5.0

-40

-20 0 25 55

AMBIENT TEMPERATURE IN °C

OUTPUT ON
I = 10 mA

OUT

OUTPUT OFF

V = 12 V

CC

85

Dwg. GH-003A