ON Semiconductor MDC3105 Technical data

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MDC3105

Integrated Relay, Inductive Load Driver

This device is intended to replace an array of three to six discrete components with an integrated SMT part. It is available in a SOT−23 package. It can be used to switch 3 to 6 Vdc inductive loads such as relays, solenoids, incandescent lamps, and small DC motors without the need of a free−wheeling diode.

Features

• Provides a Robust Driver Interface between DC Relay Coil and

Sensitive Logic Circuits

• Optimized to Switch Relays from a 3.0 V to 5.0 V Rail

• Capable of Driving Relay Coils Rated up to 2.5 W at 5.0 V

• Features Low Input Drive Current and Good Back−to−Front Transient

Isolation

• Internal Zener Eliminates Need for Free−Wheeling Diode

• Internal Zener Clamp Routes Induced Current to Ground for Quieter

System Operation

• Guaranteed Off State with No Input Connection

• Supports Large Systems with Minimal Off−State Leakage

• ESD Resistant in Accordance with the Class 1C Human Body Model

• Low Sat Voltage Reduces System Current Drain by Allowing Use of

Higher Resistance Relay Coils

• Pb−Free Packages are Available

Applications

• Telecom: Line Cards, Modems, Answering Machines, FAX

Machines, Feature Phone Electronic Hook Switch

• Computer and Office: Photocopiers, Printers, Desktop Computers

• Consumer: TVs and VCRs, Stereo Receivers, CD Players, Cassette

Recorders, TV Set Top Boxes

• Industrial: Small Appliances, White Goods, Security Systems,

Automated Test Equipment, Garage Door Openers

• Automotive: 5.0 V Driven Relays, Motor Controls, Power Latches,

Lamp Drivers

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Relay, Inductive Load Driver

Silicon SMALLBLOCKt

Integrated Circuit

MARKING

DIAGRAMS

SOT−23

1

JW = Specific Device Code M = Date Code* G = Pb−Free Package

(Note: Microdot may be in either location)

*Date Code orientation and/or overbar may

vary depending upon manufacturing location.

ORDERING INFORMATION

See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet.

CASE 318

STYLE 6

SC−74

CASE 318F

STYLE 8

JW M G

G

1

JW M G

G

1

INTERNAL CIRCUIT DIAGRAMS

V

(3)

out

V

1.0 k

in

(1)

33 k

GND (2)

December, 2005 − Rev. 5

6.6 V

V

(6)

out

V

1.0 k

(5)

in

33 k

GND (1)

1 Publication Order Number:

6.6 V

CASE 318FCASE 318

6.6 V

V

out

GND (4)

(3)

1.0 k

33 k

MDC3105/D

(2)

V

in

MDC3105

MAXIMUM RATINGS (T

= 25°C unless otherwise noted)

J

Rating Symbol Value Unit

Power Supply Voltage V Input Voltage V Reverse Input Voltage V

CC in(fwd) in(rev)

6.0 Vdc

−0.5 Vdc Repetitive Pulse Zener Energy Limit (Duty Cycle ≤ 0.01%) SOT−23 Ezpk 50 mJ Output Sink Current − Continuous I Junction Temperature T Operating Ambient Temperature Range T Storage Temperature Range T

O

J

A

stg

500 mA 150 °C

− 40 to +85 °C

− 65 to +150 °C

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.

THERMAL CHARACTERISTICS

Rating Symbol Value Unit

Total Device Power Dissipation (Note 1) SOT−23 Derate above 25°C

Total Device Power Dissipation (Note 1) SC−74 Derate above 25°C

Thermal Resistance Junction−to−Ambient SOT−23

SC−74

1. FR−5 PCB of 1″ x 0.75″ x 0.062″, TA = 25°C

P

D

P

D

R

q

JA

225

1.8

380

1.5

556 329

mW

mW/°C

mW

mW/°C

°C/W

ELECTRICAL CHARACTERISTICS (T

= 25°C unless otherwise noted)

A

Characteristic Symbol Min Typ Max Unit

OFF CHARACTERISTICS

Output Zener Breakdown Voltage (@ IT = 10 mA Pulse)

Output Leakage Current @ 0 Input Voltage (VO = 5.5 Vdc, Vin = O.C., TA = 25°C) (VO = 5.5 Vdc, Vin = O.C., TA = 85°C)

Guaranteed “OFF” State Input Voltage (IO ≤ 100 mA)

V

(BRout)

V

(−BRout)

I

OO

V

in(off)

6.2−6.6

−

−0.7

−−0.1

7.0

−

30

− − 0.4 V

V V

mA

ON CHARACTERISTICS

Input Bias Current (HFE Limited) (IO = 250 mA, VO = 0.25 Vdc)

Output Saturation Voltage (IO = 250 mA, Iin = 1.5 mA)

Output Sink Current − Continuous (VCE = 0.25 Vdc, Iin = 1.5 mA)

V

I

in

O(sat)

O(on)

− 0.8 1.6

mAdc

Vdc

− 0.12 0.16 mA

250 400 −

ORDERING INFORMATION

Device Package Shipping

MDC3105LT1 SOT−23 MDC3105LT1G SOT−23

(Pb−Free)

MDC3105DMT1 SC−74

3000 / Tape & Reel

MDC3105DMT1G SC−74

(Pb−Free)

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

†

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TYPICAL APPLICATION−DEPENDENT SWITCHING PERFORMANCE

SWITCHING CHARACTERISTICS

Characteristic Symbol Min Typ Max Units

Propagation Delay Times:

Transition Times:

High to Low Propagation Delay; Figure 1 (5.0 V 74HC04) Low to High Propagation Delay; Figure 1 (5.0 V 74HC04)

High to Low Propagation Delay; Figures 1, 13 (3.0 V 74HC04) Low to High Propagation Delay; Figures 1, 13 (3.0 V 74HC04)

High to Low Propagation Delay; Figures 1, 14 (5.0 V 74LS04) Low to High Propagation Delay; Figures 1, 14 (5.0 V 74LS04)

Fall Time; Figure 1 (5.0 V 74HC04) Rise Time; Figure 1 (5.0 V 74HC04)

Fall Time; Figures 1, 13 (3.0 V 74HC04) Rise Time; Figures 1, 13 (3.0 V 74HC04)

Fall Time; Figures 1, 14 (5.0 V 74LS04) Rise Time; Figures 1, 14 (5.0 V 74LS04)

V

in

V

out

50%

MDC3105

t

PLH

90%

50%

10%

t

r

Figure 1. Switching Waveforms

t

f

t

PHL

t

PHL

t

PLH

t

PHL

t

PLH

t

PHL

t

PLH

−

55

85

55

−

mS

−

430

−

315

−

2.4 nS

nS

t

f

t

r

t

f

t

r

t

f

t

r

−

45

70

45

−

mS

−

160

−

195

−

2.4

V

CC

GND

V

Z

V

CC

GND

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TYPICAL PERFORMANCE CHARACTERISTICS

out/Iin

, TRANSISTOR DC CURRENT GAIN

FE

H

500

450

400

350

300

250

200

150

100

MDC3105

(ON CHARACTERISTICS)

5.0

INPUT VOLTAGE (VOLTS)

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

MC68HC05C8

@ 5.0 Vdc

MC54LS04

+BAL99LT1

0

INPUT CURRENT (mA)

TJ = 85°C

25°C

−40°C

VO = 1.0 V

50

0

10 3.0 3.50.5 1.0 1.5 2.0

IO, OUTPUT SINK CURRENT (mA)

VO = 0.25 V

100 10001.0

Figure 2. Transistor DC Current Gain Figure 3. Input V−I Requirement Compared to

Possible Source Logic Outputs

MC74HC04

@ 4.5 Vdc

MDC3105LT1

Vin vs. I

MC68HC05C8 @ 3.3 Vdc MC14049B @ 4.5 Vdc

2.5 4.00

in

MC74HC04

@ 3.0 Vdc

TJ = 25°C

VO = 0.25 V

OUTPUT CURRENT (mA)

, OUTPUT VOLTAGE (Vdc)V

out

50

45

40

35

30

25

20

15

10

5.0 0

0

0.01 0.02 0.03 0.04 0.05 0.5 3.01.5 4.0 4.5 5.0

INPUT CURRENT (mA)

TJ = 85°C

25°C

−40 °C

0.06 0.07 0.08 0.09 0.1

, OUTPUT CURRENT (mA)

out

I

500

400

300

200

100

Iin = 1.5 mA

1.2 mA

1.0 mA

0.8 mA

0.6 mA

0.4 mA

0

1.00

2.0

VO, OUTPUT VOLTAGE (Vdc)

2.5 3.5

Figure 4. Threshold Effects Figure 5. Transistor Output V−I Characteristic

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1 0

10 mA

0.10.04

50 mA

Iin, INPUT CURRENT (mA)

125 mA

175 mA

1.0 10 1000

Figure 6. Output Saturation Voltage versus

I

TJ = 25°C

TJ = −40°C

I

out

500 mA

350 mA

=

8.5

8.0

7.5

7.0

6.5

, ZENER CLAMP VOLTAGE (VOLTS)

Z

V

6.0

1.0 100

TJ = 85°C

25°C

−40 °C

10

IZ, ZENER CURRENT (mA)

Figure 7. Zener Clamp Voltage versus Zener

Current

0.2 mA

0.1 mA

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