Datasheet MIC4467, MIC4468, MIC4469 Datasheet (MICREL)

MIC4467/4468/4469 Micrel

MIC4467/4468/4469

Quad 1.2A-Peak Low-Side MOSFET Driver

Bipolar/CMOS/DMOS

General Description

The MIC4467/8/9 family of 4-output CMOS buffer/drivers is an expansion from the earlier single- and dual-output drivers, to which they are functionally closely related. Because package pin count permitted it, each driver has been equipped with a 2-input logic gate for added flexibility. Placing four highpower drivers in a single package also improves system reliability and reduces total system cost. In some applications, one of these drivers can replace not only two packages of single-input drivers, but some of the associated logic as well.

Although primarily intended for driving power MOSFETs, and similar highly capacitive loads, these drivers are equally well suited to driving any other load (capacitive, resistive, or inductive), which requires a high-efficiency, low-impedance driver capable of high peak currents, rail-to-rail voltage swings, and fast switching times. For example, heavily loaded clock lines, coaxial cables, and piezoelectric transducers can all be

Logic Diagrams

Features

• Built using reliable, low power CMOS processes

• Latchproof. Withstands 500mA Inductive Kickback

• 3 Input Logic Choices

• Symmetrical Rise and Fall Times .......................... 25ns

• Short, Equal Delay Times ...................................... 75ns

• High Peak Output Current ......................................1.2A

• Wide Operating Range .................................. 4.5 to 18V

• Low Equivalent Input Capacitance (typ) .................. 6pF

• Inputs = Logic 1 for Any Input From 2.4V to V

S

• ESD Protected

Applications

• General-Purpose CMOS Logic Buffer

• Driving All 4 MOSFETs in an H-Bridge

• Direct Small-Motor Driver

• Relay or Peripheral Drivers

• Dual Differential Output Power Drivers

• CCD Driver

• Pin-Switching Network Driver

1A 1B

2A 2B

3A 3B

4A 4B

MIC4467

1 2

3 4

5 6

8 9

V

S

14

7

GND

13

12

11

10

1Y

2Y

3Y

4Y

1A 1B

2A 2B

3A 3B

4A 4B

MIC4468

1 2

3 4

5 6

8 9

V

S

14

7

GND

13

12

11

10

1Y

2Y

3Y

4Y

1A 1B

2A 2B

3A 3B

4A 4B

MIC4469

1 2

3 4

5 6

8 9

V

S

14

7

GND

13

12

11

10

1Y

2Y

3Y

4Y

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MIC4467/4468/4469 Micrel

driven easily with MIC446X series drivers. The only limitation on loading is that total power dissipation in the IC must be kept within the power dissipation limits of the package.

The MIC446X series drivers are built using a BCD process. They will not latch under any conditions within their power and

Ordering Information

Part No. Package Temp. Range

MIC44xxCN* 14-Pin Plastic DIP 0° to +70°C MIC44xxCWM* 16-Pin Wide SOIC 0° to +70°C MIC44xxBN* 14-Pin Plastic DIP –40° to +85°C MIC44xxBWM* 16-Pin Wide SOIC –40° to +85°C

* xx identifies input logic:

67 — NAND 68 — AND

69 — AND with 1 inverting input

voltage ratings. They are not subject to damage when up to 5V of noise spiking (either polarity) occurs on the ground line. They can accept up to half an amp of inductive kickback current (either polarity) into their outputs without damage or logic upset.

T ruth Tab le

Inputs

Part No. A B Y

MIC4467 L X H (Each Driver) X L H

HH L

MIC4468 H H H (Each Driver) L X L

XL L

MIC4469 L X L (Each Driver) X H L

HL H

Output

Pin Configurations

1A

1

1B

2

2A

3

2B

4

3A

5

3B

6

GND

7

14-Pin DIP (N)

TOP VIEW

14 13 12 11 10

5

16-Pin Wide SOIC (WM)

V

S

1Y 2Y 3Y 4Y 4B

9

4A

8

1A 1B 2A 2B 3A 3B

GND GND

1 2 3 4 5 6 7 8

TOP VIEW

16 15 14 13 12 11 10 9

V V 1Y 2Y 3Y 4Y 4B 4A

S

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MIC4467/4468/4469 Micrel

Block Diagrams

V

S

MIC4467

5V

Regulator

N A

Level

Shifter

N B

GND

Functional Diagram for One Driver (Four Drivers per Package–Ground Unused Inputs)

V

S

MIC4468

Y OUT

5V

Regulator

IN A

Level

Shifter

IN B

GND

unctional Diagram for One Driver (Four Drivers per Package–Ground Unused Inputs)

V

S

MIC4469

5V

Regulator

N A

Level

Shifter

N B

Y OUT

GND

Functional Diagram for One Driver (Four Drivers per Package–Ground Unused Inputs)

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MIC4467/4468/4469 Micrel

Absolute Maximum Ratings (Notes 1 and 2)

Supply Voltage 22V Input Voltage (GND – 5V) to (VS + 0.3V) Maximum Chip Temperature

Power Dissipation

N Package (14-Pin Plastic DIP) 1.5W

WM Package (16-Pin Wide SOIC) 1W Operating 150°C Storage –65° to +150°C

Maximum Load Temperature

(10 sec, for soldering) 300°C

Package Thermal Resistance

N Package (14-Pin Plastic DIP) θ

WM Package (16-Pin Wide SOIC) θ

JA

120°C/W

Operating Ambient Temperature

C Version 0° to +70°C B Version –40° to +85°C

Electrical Characteristics: Measured at T

Symbol Parameter Conditions Min Typ Max Units

INPUT

V

IH

V

IL

I

IN

Logic 1 Input Voltage 2.4 1.3 V Logic 0 Input Voltage 1.2 0.8 V Input Current 0 ≤ VIN ≤ V

= 25°C with 4.5V ≤ VS ≤ 18V unless otherwise specified.

A

S

–1 1 µA

80°C/W

OUTPUT

V

OH

V

OL

R

O

I

PK

I Latch-Up Protection >500 mA

SWITCHING TIME

t

R

t

F

t

D1

t

D2

POWER SUPPLY

I

S

High Output Voltage I Low Output Voltage I Output Resistance I Peak Output Current 1.2 A

Withstand Reverse Current

Rise Time Test Figure 1 14 25 ns Fall Time Test Figure 1 13 25 ns Delay Time Test Figure 1 30 75 ns Delay Time Test Figure 1 45 75 ns

Power Supply Current 0.2 4 mA Supply

= 10mA VS-0.15 V

LOAD

= 10mA 0.15 V

LOAD

= 10mA, VS = 18V 5 15 Ω

OUT

5

April 1998 5-83

MIC4467/4468/4469 Micrel

Electrical Characteristics:

Measured over operating temperature range with 4.5V ≤ VS ≤ 18V unless otherwise specified.

Symbol Parameter Conditions Min Typ Max Units

INPUT

V

IH

V

IL

I

IN

Logic 1 Input Voltage 2.4 1.4 V Logic 0 Input Voltage 1.0 0.8 V Input Current 0 ≤ VIN ≤ V

S

–1 1 µA

OUTPUT

V V R I

OH

OL

O

PK

High Output Voltage I Low Output Voltage I Output Resistance I

= 10 mA VS-0.3 V

LOAD

= 10 mA 0.3 V

LOAD

= 10 mA, VS = 18V 7 30 Ω

OUT

Peak Output Current 1.2 A

I Latch-Up Protection 500 mA

Withstand Reverse Current

SWITCHING TIME

t

R

t

F

t

D1

Rise Time Test Figure 1 17 50 ns Fall Time Test Figure 1 16 50 ns Delay Time Test Figure 1 35 100 ns

t

D2

Delay Time Test Figure 1 55 100 ns

POWER SUPPLY

I

S

Power Supply Current 0.4 8 mA Supply

NOTE 1: Functional operation above the absolute maximum stress ratings is not implied. NOTE 2: Static sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to

prevent static damage.

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MIC4467/4468/4469 Micrel

Typical Characteristics

Rise and Fall Time vs. Supply Voltage

70

C = 1000pF

L

T = 25°C

60

A

50 40 30

Time (ns)

20

T

10

F

0

05 2010 15

SUPPLY VOLTAGE (V)

Delay Time vs. Temperature

35

C = 1000pF

L

V = 18V

30

S

25 20 15

Time (ns)

10

5 0

-50

-25 0 15025 50

-75 TEMPERATURE (°C)

T

R

75 100125

Delay Time vs. Supply Voltage

35 30

25 20

Time (ns)

15 10

T

D1

5 0

05 2010 15

SUPPLY VOLTAGE (V)

C = 1000pF

L

T = 25°C

A

T

D2

Supply Current vs. Capacitive Load

80

T = 25°C

A

70

V = 18V

T

D2

S

60 50

T

D1

40 30 20

SUPPLY CURRENT (mA)

10

0

10 10000100

CAPACITIVE LOAD (pF)

1000

400kHz

20kHz

200 kHz

vs. Temperature

40

C = 1000pF

L

V = 18V

S

30

T

20

R

Time (ns)

10

-25 0 150

-50

-75 TEMPERATURE (°C)

Rise and Fall Time vs. Capacitive Load

1k

T = 25°C

A

V = 18V

S

100

Time (ns)

10

1

10 10000100

CAPACITIVE LOAD (pF)

25 50

75

1000

T

100

F

125

T

R

T

F

5

Rise and Fall Time

Supply Current vs. Frequency

30

T = 25°C

A

C = 1000pF

L

20

10

SUPPLY CURRENT (mA)

0

1 100010

FREQUENCY (kHz)

5 V

100

V = 18V

S

10 V

High Output vs. Current

1.20 T = 25°C

A

.96

.72

S OUT

.48

| V – V | (V)

.24

.00

0 102030405060708090100

CURRENT SOURCED (mA)

V = 5V

C

15 V

10 V

Low Output vs. Current

1.20 T = 25°C

A

.96

.72

.48

.24

OUTPUT VOLTAGE (V)

.00

010

20 30 40 50 60 70 80 90 100 CURRENT SUNK (mA)

V = 5V

S

15 V

10 V

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MIC4467/4468/4469 Micrel

Test Figure 1

1 µF FILM

IN

1

IN

1

IN

2

IN

2

IN

3

IN

3

IN

4

IN

4

Quiescent Power Supply Current vs. Supply Voltage

2.5

2.0

1.5

1.0

0.5

SUPPLY CURRENT (mA)

0

V

S

NO LOAD BOTH INPUTS LOGIC "1" T = 25°C

A

10

SUPPLY VOLTAGE (V)

0.1 µF CERAMIC

V

OUT

470 pF

Quiescent Power Supply Current vs. Supply Voltage

400

300

200

150

NO LOAD

100

SUPPLY CURRENT (µA)

50

201550

0

BOTH INPUTS LOGIC "0" T = 25°C

A

SUPPLY VOLTAGE (V)

INVERTING INPUT

+5V

V

INPUT

10%

t

V

OUTPUT

18V

0V

D1

90%

t

F

NON-INVERTING INPUT

+5V

V

INPUT

10%

18V V

OUTPUT 0V

90%

t

D1

10%

151005

10%

t

R

90%

t

D2

90%

t

D2

20

t

R

10%

90%

t

F

Package Power Dissipation

1500

1250

1000

750

D

P (mW)

500

16-PIN WIDE SOIC

250

SLOPE = –8 mW/°C

0

25 50 75 100 125 150

AMBIENT TEMPERATURE (°C)

14-PIN PDIP SLOPE = –12 mW/°C

Quad Driver Drives H Bridge to Control Motor Speed and Direction

+5V TO +15V

MIC4467

CW

CCW

DC BRUSH MOTOR

PWM SPEED

GND

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