Motorola MC34161D, MC34161P Datasheet

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The MC34161/MC33161 are universal voltage monitors intended for use in a wide variety of voltage sensing applications. These devices offer the circuit designer an economical solution for positive and negative voltage detection. The circuit consists of two comparator channels each with hysteresis, a unique Mode Select Input for channel programming, a pinned out 2.54 V reference, and two open collector outputs capable of sinking in excess of 10 mA. Each comparator channel can be configured as either inverting or noninverting by the Mode Select Input. This allows over, under, and window detection of positive and negative voltages. The minimum supply voltage needed for these devices to be fully functional is 2.0 V for positive voltage sensing and 4.0 V for negative voltage sensing.

Applications include direct monitoring of positive and negative voltages used in appliance, automotive, consumer, and industrial equipment.

• Unique Mode Select Input Allows Channel Programming

• Over, Under, and Window Voltage Detection

• Positive and Negative Voltage Detection

• Fully Functional at 2.0 V for Positve Voltage Sensing and 4.0 V for

Negative Voltage Sensing

• Pinned Out 2.54 V Reference with Current Limit Protection

• Low Standby Current

• Open Collector Outputs for Enhanced Device Flexibility

Order this document by MC34161/D

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UNIVERSAL VOLTAGE

MONITORS

SEMICONDUCTOR

TECHNICAL DATA

P SUFFIX

PLASTIC PACKAGE

8

1

8

1

CASE 626

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

Simplified Block Diagram

(Positive Voltage Window Detector Application)

V

CC

8

1

V

S

7

2

3

+ –

+

1.27V

+ –

+

1.27V

2.54V

Reference

– +

+

2.8V

– +

+

0.6V

4

PIN CONNECTIONS

1

V

ref

2

Input 1

3

Input 2

4

Gnd

(TOP VIEW)

6

5

MC34161D MC34161P Plastic DIP

MC33161D SO–8 MC33161P Plastic DIP

ORDERING INFORMATION

Operating

Device

Temperature Range

TA = 0° to +70°C

TA = –40° to +85°C

8

V

CC

7

Mode Select

6

Output 1

5

Output 2

Package

SO–8

MOTOROLA ANALOG IC DEVICE DATA

 Motorola, Inc. 1998 Rev 1.1

1

MC34161 MC33161

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Input Voltage V Comparator Input Voltage Range V Comparator Output Sink Current (Pins 5 and 6) (Note 1) I Comparator Output Voltage V Power Dissipation and Thermal Characteristics (Note 1)

P Suffix, Plastic Package, Case 626

Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction–to–Air

D Suffix, Plastic Package, Case 751

Maximum Power Dissipation @ TA = 70°C

Thermal Resistance, Junction–to–Air Operating Junction Temperature T Operating Ambient Temperature (Note 3)

MC34161 MC33161

Storage Temperature Range T

Sink

P

R

P

R

CC

in

out

D

θJA

D

θJA

T

A

stg

J

ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, for typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.)

Characteristics Symbol Min Typ Max Unit

COMPARATOR INPUTS

Threshold Voltage, Vin Increasing (TA = 25°C)

Threshold Voltage, Vin Increasing (TA = T

Threshold Voltage Variation (VCC = 2.0 V to 40 V) ∆V Threshold Hysteresis, Vin Decreasing V Threshold Difference |V Reference to Threshold Difference (V Input Bias Current (Vin = 1.0 V)

Input Bias Current (Vin = 1.5 V)

MODE SELECT INPUT

Mode Select Threshold Voltage (Figure 5) Channel 1

Mode Select Threshold Voltage (Figure 5) Channel 2

COMPARATOR OUTPUTS

Output Sink Saturation Voltage (I

Output Sink Saturation Voltage (I Output Sink Saturation Voltage (I

Off–State Leakage Current (VOH = 40 V) I

REFERENCE OUTPUT

Output Voltage (IO = 0 mA, TA = 25°C) V Load Regulation (IO = 0 mA to 2.0 mA) Reg Line Regulation (VCC = 4.0 V to 40 V) Reg Total Output Variation over Line, Load, and Temperature ∆V Short Circuit Current I

TOTAL DEVICE

Power Supply Current (V

Operating Voltage Range (Positive Sensing)

Operating Voltage Range (Negative Sensing)

NOTES: 1. Maximum package power dissipation must be observed.

2.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

3.T

=0°C for MC34161 T

low

–40°C for MC33161 +85°C for MC33161

– V

th1

Mode

| V

th2

ref

= 2.0 mA)

Sink

= 10 mA)

Sink

= 0.25 mA, VCC = 1.0 V)

Sink

, V

in1

, Vin 1, Vin 2 = Gd) (VCC = 40 V)

to T

min

– V

), (V

in1

= Gnd) (VCC = 5.0 V)

in2

= +70°C for MC34161

high

max

ref

)

– V

) V

in2

40 V

– 1.0 to +40 V

20 mA 40 V

800 100

450 178

+150 °C

0 to +70

– 40 to +85

– 55 to +150 °C

V V

V

th

th H D

RTD

I

IB

th(CH 1) th(CH 2)

V

OL

OH

ref

load

line

ref

SC

I

CC

V

CC

mW

°C/W

mW

°C/W

°C

1.245

1.235 – 7.0 15 mV

15 25 35 mV

– 1.0 15 mV

1.20 1.27 1.32 V –

–

V

+0.15

ref

0.3

– – –

– 0 1.0 µA

2.48 2.54 2.60 V – 0.6 15 mV – 5.0 15 mV

2.45 – 2.60 V – 8.5 30 mA

– –

2.0

4.0

1.27 –

40 85

V

+0.23

ref

0.63

0.05

0.22

0.02

450 560

– –

V

1.295

200 400

+0.30

ref

0.9

0.3

0.6

0.2

700 900

40 40

V

nA

V

µA

V

2

MOTOROLA ANALOG IC DEVICE DATA

Figure 1. Comparator Input Threshold Voltage

6.0 VCC = 5.0 V

RL = 10 k to V

5.0

TA =

4.0

3.0

2.0

, OUTPUT VOL TAGE (V)

TA = 85°C

out

TA = 25°C

V

1.0

TA = –40°C

0

1.22 1.281.23 1.24 1.25 1.26 1.27 1.29

CC

25°C

TA = 85°C TA = 25 TA = –40

Vin, INPUT VOLTAGE (V)

Figure 3. Output Propagation Delay Time

versus Percent Overdrive

3600

3000

2400

1800

1200

, OUTPUT PROP AGATION DELAY TIME (ns)

PHL

t

600

VCC = 5.0 V

°

C

TA = 25

1

4.0 6.00 2.0

PERCENT OVERDRIVE (%)

1. V

= Gnd, Output Falling

Mode

2. V

= VCC, Output Rising

Mode

3. V

= VCC, Output Falling

Mode

4. V

= Gnd, Output Rising

Mode

2

3

4

8.0 10

MC34161 MC33161

500

400

300

200

°

C

°

C

IB

100

I , INPUT BIAS CURRENT (nA)

0

0 4.0 5.0

Figure 4. Output V oltage versus Supply Voltage

8.0

6.0

4.0

, OUTPUT VOL TAGE (V)

out

2.0

V

0

0 2.0 4.0 6.0 8.0

Figure 2. Comparator Input Bias Current

versus Input V oltage

VCC = 5.0 V V

= Gnd

Mode

°

C

TA = 25

1.0 3.02.0 Vin, INPUT VOLTAGE (V)

Undervoltage Detector Programmed to trip at 4.5 V R1 = 1.8 k, R2 = 4.7 k RL = 10 k to V Refer to Figure 16

CC

TA = –40°C

°

C

TA = –25

°

TA = –85

C

VCC, SUPPLY VOLTAGE (V)

Figure 5. Mode Select Thresholds

6.0 Channel 2 Threshold Channel 1 Threshold

5.0

VCC = 5.0 V RL = 10 k to V

TA = 85°C

TA = 25°C TA = –40°C

1.0 3.00 0.5 1.5 2.52.0 3.5 , MODE SELECT INPUT VOLTAGE (V)

CC

TA = –40°C

, CHANNEL OUTPUT VOLTAGE (V)

out

V

4.0

3.0

2.0

1.0

0

V

Mode

MOTOROLA ANALOG IC DEVICE DATA

°

TA = 85 TA = 25°C

Figure 6. Mode Select Input Current

versus Input V oltage

40

µ

VCC = 5.0 V

35 30 25 20 15

C

10

, MODE SELECT INPUT CURRENT ( A)

5.0

Mode

0

I

°

C

TA = 25

1.0 3.02.00 4.0 5.0

V

, MODE SELECT INPUT VOLTAGE (V)

Mode

3

MC34161 MC33161

2.8

2.4

2.0

1.6

1.2

0.8

ref

V , REFERENCE VOLTAGE (V)

0.4 0

0

–2.0

Figure 7. Reference V oltage

versus Supply V oltage

V

Mode

TA = 25

10 3020 40

VCC, SUPPLY VOLTAGE (V)

Figure 9. Reference V oltage Change

versus Source Current

= Gnd

°

C

Figure 8. Reference V oltage

versus Ambient T emperature

2.610 V

Max = 2.60 V

V

Typ = 2.54 V

ref

VCC = 5.0 V V

°C)

2.578

2.546

2.514

2.482

, REFERENCE OUTPUT VOLTAGE (V)

ref

V

2.450

V

Min = 2.48 V

ref

–55 –25 0 25 50 75 100 125

TA, AMBIENT TEMPERATURE (

Figure 10. Output Saturation Voltage

versus Output Sink Current

0.5 VCC = 5.0 V

V

= Gnd

Mode

0.4

TA = 85°C

Mode

= Gnd

–4.0

VCC = 5.0 V V

= Gnd

Mode

–6.0

–8.0

, REFERENCE VOLTAGE CHANGE (mV)

ref

V

–10

1.00 I

ref

Figure 11. Supply Current versus

0.8

V

= Gnd

Mode

0.6

Pins 2, 3 = 1.5 V

0.4

, SUPPLY CURRENT (mA)

0.2

CC

I

0

C

°

= 85 T

C

°

= –40

A

T

2.0 3.0 4.0 5.0 6.0 7.0 8.0

, REFERENCE SOURCE CURRENT (mA)

C

°

= 25

A

T

Supply V oltage

V

= V

Mode

Pins 2, 3 = Gnd

100

VCC, SUPPLY VOLTAGE (V)

20 30 40

CC

V

= V

Mode

Pin 1 = 1.5 V Pin 2 = Gnd

ICC measured at Pin 8 TA = 25

ref

°

C

0.3

0.2

0.1

, OUTPUT SA TURATION VOLTAGE (V)

out

V

1.6

1.2

0.8

, INPUT SUPPL Y CURRENT (mA)

0.4

CC

I

TA = 25°C

TA = –40°C

0

4.00 I

, OUTPUT SINK CURRENT (mA)

out

8.0 12 16

Figure 12. Supply Current

versus Output Sink Current

VCC = 5.0 V V

= Gnd

Mode

°

C

TA = 25

0

4.00 I

, OUTPUT SINK CURRENT (mA)

out

8.0 12 16

4

MOTOROLA ANALOG IC DEVICE DATA

MC34161 MC33161

Figure 13. MC34161 Representative Block Diagram

V

CC

8

V

ref

Mode Select

Input 1

Input 2

2.54V

1

7

+

2

3

–

+

1.27V

+ –

+

1.27V

Reference

+

2.8V

+

0.6V

Gnd

– +

4

Channel 1

Output 1

6

Channel 2

Output 2

5

Figure 14. Truth Table

Mode Select

Pin 7

GND 0

V

ref

VCC (>2.0 V) 0

Input 1

Pin 2

Output 1

Pin 6

1 0

1

0 1

1 0

Input 2

Pin 3

0 1

Output 2

Pin 5

0 1

1 0

Comments

Channels 1 & 2: Noninverting

Channel 1: Noninverting Channel 2: Inverting

Channels 1 & 2: Inverting

MOTOROLA ANALOG IC DEVICE DATA

5