ON Semiconductor MC34164, MC33164, NCV33164 Technical data

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MC34164, MC33164, NCV33164

Micropower Undervoltage Sensing Circuits

The MC34164 series are undervoltage sensing circuits specifically designed for use as reset controllers in portable microprocessor based systems where extended battery life is required. These devices offer the designer an economical solution for low voltage detection with a single external resistor. The MC34164 series features a bandgap reference, a comparator with precise thresholds and built−in hysteresis to prevent erratic reset operation, an open collector reset output capable of sinking in excess of 6.0 mA, and guaranteed operation down to 1.0 V input with extremely low standby current. The MC devices are packaged in 3−pin TO−226AA, micro size TSOP−5, 8−pin SOIC−8 and Micro8™ surface mount packages. The NCV device is packaged in SOIC−8.

Applications include direct monitoring of the 3.0 V or 5.0 V MPU/logic power supply used in appliance, automotive, consumer, and industrial equipment.

• Temperature Compensated Reference

• Monitors 3.0 V (MC34164−3) or 5.0 V (MC34164−5) Power Supplies

• Precise Comparator Thresholds Guaranteed Over Temperature

• Comparator Hysteresis Prevents Erratic Reset

• Reset Output Capable of Sinking in Excess of 6.0 mA

• Internal Clamp Diode for Discharging Delay Capacitor

• Guaranteed Reset Operation With 1.0 V Input

• Extremely Low Standby Current: As Low as 9.0 A

• Economical TO−226AA, TSOP−5, SOIC−8 and Micro8 Surface

Mount Packages

• NCV Prefix for Automotive and Other Applications Requiring Site

and Control Changes

• Pb−Free Packages are Available

Input

Reset

1

2

3

TO−226AA

P SUFFIX

CASE 29

8

1

Micro8 DM SUFFIX CASE 846A

TSOP−5

Pin 1. Ground

2. Input

3. Reset

4. NC

5. NC

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5

PIN CONNECTIONS

Reset

Input

N.C.

Ground

1

2

3

4

(Top View)

8

7

6

5

8

1

SOIC−8 D SUFFIX CASE 751

1

TSOP−5

SN SUFFIX

CASE 483

N.C.

TO−226AA

Pin 1. Reset

2. Input

3. Ground

1.2 V

ref

GND

Figure 1. Representative Block Diagram

This device contains 28 active transistors.

August, 2005 − Rev. 16

See detailed ordering and shipping information in the package

ORDERING INFORMATION

dimensions section on page 7 of this data sheet.

Sink Only

=

Positive True Logic

1 Publication Order Number:

DEVICE MARKING INFORMATION

See general marking information in the device marking section on page 9 of this data sheet.

MC34164/D

MC34164, MC33164, NCV33164

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Input Supply Voltage V Reset Output Voltage V Reset Output Sink Current I

in O

Sink

Clamp Diode Forward Current, Reset to Input Pin (Note 1) IF 100 mA Power Dissipation and Thermal Characteristics

P Suffix, Plastic Package

Maximum Power Dissipation @ TA = 25°C Thermal Resistance, Junction−to−Air

P

D

R



JA

D Suffix, Plastic Package

Maximum Power Dissipation @ TA = 25°C Thermal Resistance, Junction−to−Air

DM Suffix, Plastic Package

Maximum Power Dissipation @ TA = 25°C Thermal Resistance, Junction−to−Air

Operating Junction Temperature T Operating Ambient Temperature Range

P

D

R



JA

P

D

R



JA J

T

A

MC34164 Series MC33164 Series, NCV33164

Storage Temperature Range T

Electrostatic Discharge Sensitivity (ESD)

stg

ESD Human Body Model (HBM) Machine Model (MM)

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.

MC34164−3, MC33164−3 SERIES, NCV33164−3 ELECTRICAL CHARACTERISTICS

(For typical values T

range that applies [Notes 2 & 3], unless otherwise noted.)

Characteristic Symbol Min Typ Max Unit

COMPARATOR

Threshold Voltage

High State Output (Vin Increasing) Low State Output (Vin Decreasing) Hysteresis (I

= 100 A)

Sink

RESET OUTPUT

Output Sink Saturation

(Vin = 2.4 V, I (Vin = 1.0 V, I

= 1.0 mA)

Sink

= 0.25 mA)

Sink

Output Sink Current (Vin, Reset = 2.4 V) I Output Off−State Leakage

(Vin, Reset = 3.0 V) (Vin, Reset = 10 V)

Clamp Diode Forward Voltage, Reset to Input Pin (IF = 5.0 mA) V

TOTAL DEVICE

Operating Input Voltage Range V Quiescent Input Current

V

= 3.0 V

in

Vin = 6.0 V

1. Maximum package power dissipation limits 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 MC34164 T

low

=−40°C for MC33164, NCV33164 = +125°C for MC33164, NCV33164

= +70°C for MC34164

high

= 25°C, for min/max values TA is the operating ambient temperature

A

V

IH

V

IL

V

H

V

OL

2.55

0.03

−

Sink

I

R(leak)

6.0 12 30 mA

−

F

in

I

in

0.6 0.9 1.2 V

1.0 to 10 − − V

−

−1.0 to 12 V

−1.0 to 12 V Internally

mA

Limited

700 178

520 240

mW

°C/W

mW

°C/W

mW

°C/W

+150 °C

°C

0 to +70

− 40 to +125

− 65 to +150 °C

4000

200

2.71

2.65

0.06

0.14

0.1

0.02

9.0 24

2.80

−

0.4

0.3

0.5

1.0

15 40

V

A

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2

MC34164, MC33164, NCV33164

MC34164−5, MC33164−5 SERIES, NCV33164−5 ELECTRICAL CHARACTERISTICS

(For typical values T

range that applies [Notes 5 & 6], unless otherwise noted.)

Characteristic Symbol Min Typ Max Unit

COMPARATOR

Threshold Voltage

High State Output (V

Increasing)

in

Low State Output (Vin Decreasing) Hysteresis (I

= 100 A)

Sink

RESET OUTPUT

Output Sink Saturation

(Vin = 4.0 V, I (Vin = 1.0 V, I

= 1.0 mA)

Sink

= 0.25 mA)

Sink

Output Sink Current (Vin, Reset = 4.0 V) I Output Off−State Leakage

(Vin, Reset = 5.0 V) (Vin, Reset = 10 V)

Clamp Diode Forward Voltage, Reset to Input Pin (IF = 5.0 mA) V

TOTAL DEVICE

Operating Input Voltage Range V Quiescent Input Current

Vin = 5.0 V Vin = 10 V

4. Maximum package power dissipation limits must be observed.

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

6. T

= 0°C for MC34164 T

low

=−40°C for MC33164, NCV33164 = +125°C for MC33164, NCV33164

high

7. NCV prefix is for automotive and other applications requiring site and change control.

= 25°C, for min/max values TA is the operating ambient temperature

A

= +70°C for MC34164

V

IH

V

IL

V

H

V

OL

Sink

I

R(leak)

F

in

I

in

4.15

0.02

−

4.33

4.27

0.09

0.14

0.1

4.45

7.0 20 50 mA

−

0.02

0.6 0.9 1.2 V

1.0 to 10 − − V

−

12 32

V

−

V

0.4

0.3

A

0.5

2.0

A

20 50

10

8.0

6.0

4.0

, OUTPUT VOLTAGE (V)

O

2.0

V

0

RL = 82 k to V TA = 25°C

0

2.0 4.0 6.0 8.0 10

in

Vin, INPUT VOLTAGE (V)

Figure 2. MC3X164−3 Reset Output

Voltage versus Input Voltage

10

8.0

6.0

4.0

, OUTPUT VOLTAGE (V)

O

2.0

V

0

RL = 82 k to V TA = 25°C

2.0 4.0 6.0 8.0 10

in

Vin, INPUT VOLTAGE (V)

Figure 3. MC3X164−5 Reset Output

Voltage versus Input Voltage

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3

MC34164, MC33164, NCV33164

O

G

(

)

, OUTPUT VOLTAGE (V) V

5.0

4.0

3.0

2.0

O

1.0

0

4.22

RL = 82 k to V TA = 25°C

4.26 4.30 4.34 4.38

Vin, INPUT VOLTAGE (V)

in

Figure 5. MC3X164−5 Reset Output

Voltage versus Input Voltage

4.36

4.32

4.28

Upper Threshold

High State Output

5.0

4.0

V E

LTA

3.0

2.0

UTPUT V ,

O

1.0

V

0

2.62

2.66 2.70 2.74 2.78

Vin, INPUT VOLTAGE (V)

RL = 82 k to V TA = 25°C

in

Figure 4. MC3X164−3 Reset Output

2.76

2.72

2.68

Voltage versus Input Voltage

Upper Threshold

High State Output

, THRESHOLD VOLTAGE (V) V

μ

, INPUT CURRENT ( A) I

2.64

in

2.60

−50

−25 0 25 50 75 100 125

TA, AMBIENT TEMPERATURE (°C)

Lower Threshold

Low State Output

Figure 6. MC3X164−3 Comparator Threshold

Voltage versus Temperature

50

40

30

20

in

10

0

TA = 0°C

2.0 4.0 6.0 8.0 10

Vin, INPUT VOLTAGE (V)

TA = 25°C

TA = 70°C

, THRESHOLD VOLTAGE (V) V

4.24

in

4.20

−50

Lower Threshold

Low State Output

−25 0 25 50 75 100 125

TA, AMBIENT TEMPERATURE (°C)

Figure 7. MC3X164−5 Comparator Threshold

Voltage versus Temperature

50

40

μ

30

20

, INPUT CURRENT ( A)

in

I

10

0

2.0 4.0 6.0 8.0 10

TA = 0°C

Vin, INPUT VOLTAGE (V)

TA = 25°C

TA = 70°C

Figure 8. MC3X164−3 Input Current

versus Input Voltage

Figure 9. MC3X164−5 Input Current

versus Input Voltage

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4

MC34164, MC33164, NCV33164

, OUTPUT SATURATION (V)

OL

V

, FORWARD CURRENT (mA)

F

I

4.0

Vin = 2.4 V

3.0

2.0

1.0

0

TA = 25°C

TA = 0°C

TA = 70°C

4.0 8.0 12 16

V

, SINK CURRENT (mA)

Sink

TA = 70°C

Figure 10. MC3X164−3 Reset Output

Saturation versus Sink Current

32

Vin = 0 V TA = 25°C

0.4 0.8 1.2 1.6

, FORWARD VOLTAGE (V)

V

F

8.0

24

16

0

Figure 12. Clamp Diode Forward Current

versus Voltage

TA = 0°C

TA = 25°C

4.0

Vin, Reset = 4 V

3.0

TA = 25°C

2.0

1.0

0

TA = 0°C

TA = 70°C

4.0 8.0 12 16 20

I

, SINK CURRENT (mA)

Sink

, OUTPUT SATURATION (V)

OL

V

20

TA = 25°C

TA = 70°C

TA = 0°C

Figure 11. MC3X164−5 Reset Output

Saturation versus Sink Current

Vin = 5.0 V to 4.0 V RL = 43 k TA = 25°C

90%

5.0 V

4.0 V

Reset

V

in

V

in

5.0V

4.0V

10

%

Ref

43k

Reset

5.0 s/DIV

Figure 13. Reset Delay Time

(MC3X164−5 Shown)

Input

Power

Supply

1.2 V

ref

GND

A time delayed reset can be accomplished with the addition of C supply rise times (<500 ns) it is recommended that the RCDLY time constant be greater than 5.0 s. V the microprocessor reset input threshold.

Reset

R

Reset

C

DLY

t

= R

DLY

CDLY

. For systems with extremely fast power

DLY

Microprocessor

Circuit

In

ǒǓ

1 −

Figure 14. Low Voltage Microprocessor Reset

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5

1

V

th(MPU)

V

th(MPU)

in

is