Datasheet MC34064DM-5, MC34064DM-5R2, MC34064P-005, MC34064P-5, MC34064D-005 Datasheet (Motorola)

  

The MC34064 is an undervoltage sensing circuit specifically designed for
use as a reset controller in microprocessor-based systems. It offers the
designer an economical solution for low voltage detection with a single
external resistor. The MC34064 features a trimmed-in-package bandgap
reference, and a comparator with precise thresholds and built-in hysteresis
to prevent erratic reset operation. The open collector reset output is capable
of sinking in excess of 10 mA, and operation is guaranteed down to 1.0 V
input with low standby current. These devices are packaged in 3-pin
TO-226AA, 8-pin SO–8 and Micro–8 surface mount packages.

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

• Trimmed-In-Package Temperature Compensated Reference

• Comparator Threshold of 4.6 V at 25°C

• Precise Comparator Thresholds Guaranteed Over Temperature

• Comparator Hysteresis Prevents Erratic Reset

• Reset Output Capable of Sinking in Excess of 10 mA

• Internal Clamp Diode for Discharging Delay Capacitor

• Guaranteed Reset Operation with 1.0 V Input

• Low Standby Current

• Economical TO–226AA, SO–8 and Micro–8 Surface Mount Packages

Order this document by MC34064/D

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UNDERVOLTAGE

SENSING CIRCUIT

SEMICONDUCTOR

TECHNICAL DATA

P SUFFIX

PLASTIC PACKAGE

CASE 29

(TO–226AA)

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

Pin 1. Reset

2. Input

1

2

3

3. Ground

8

1

Representative Block Diagram

Input

Pin numbers adjacent to terminals are for the 3–pin TO–226AA package.
Pin numbers in parenthesis are for the 8–lead packages.

2 (2)

1.2 V

ref

3 (4)

Gnd

=

This device contains 21 active transistors.

Reset

1 (1)

Sink Only
Positive True Logic

DM SUFFIX

PLASTIC PACKAGE

CASE 846A

(Micro–8)

1

Reset

2

Input

3

N.C.

4

Ground

(Top View)

8

1

8

N.C.

7

N.C.

6

N.C.

5

N.C.

ORDERING INFORMATION

Operating

Device

MC34064D–5
MC34064DM–5 Micro–8

MC34064P–5 TO–226AA
MC33064D–5 SO–8
MC33064DM–5 Micro–8
MC33064P–5 TO–226AA

Temperature Range

TA = 0° to +70°C

TA = – 40° to +85°C

Package

SO–8

MOTOROLA ANALOG IC DEVICE DATA

 Motorola, Inc. 1996 Rev 2

1

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Input Supply Voltage V
Reset Output Voltage V
Reset Output Sink Current (Note 1) I

Clamp Diode Forward Current, Pin 1 to 2 (Note 1) I
Power Dissipation and Thermal Characteristics

P Suffix, Plastic Package

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

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

MC34064
MC33064

Storage Temperature Range T

NOTE: ESD data available upon request.

MC34064 MC33064

–1.0 to 10 V

10 V

Internally

Limited

100 mA

625
200

625
200

520
240

+150 °C

0 to +70

–40 to +85

–65 to +150 °C

Sink

P

R

P

R

P

R

F

θJA

θJA

θJA

T

stg

in
O

D

D

D

J

A

mA

mW

°C/W

mW

°C/W

mW

°C/W

°C

ELECTRICAL CHARACTERISTICS (For typical values T

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

A

that applies [Notes 2 and 3] unless otherwise noted.)

Characteristics Symbol Min Typ Max Unit

COMPARATOR

Threshold Voltage

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

V

IH

V

IL

V

H

0.01

RESET OUTPUT

Output Sink Saturation

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

Sink
Sink
Sink

= 8.0 mA)
= 2.0 mA)

= 0.1 mA)
Output Sink Current (Vin, Reset = 4.0 V) I
Output Off-State Leakage (Vin, Reset = 5.0 V) I
Clamp Diode Forward Voltage, Pin 1 to 2 (IF = 10 mA) V

V

OL

Sink

OH

F

TOTAL DEVICE

Operating Input Voltage Range V
Quiescent Input Current (Vin = 5.0 V) I

NOTES: 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 MC34064 T

low

–40°C for MC33064 +85°C for MC33064

= +70°C for MC34064

high

in

in

1.0 to 6.5 – – V

4.5

4.5

4.61

4.59

0.02

4.7

4.7

0.05

V

V

–
–
–

0.46

0.15
–

1.0

0.4

0.1

10 27 60 mA

– 0.02 0.5 µA

0.6 0.9 1.2 V

– 390 500 µA

2

MOTOROLA ANALOG IC DEVICE DATA

MC34064 MC33064

Figure 1. Reset Output Voltage versus

Input Voltage

1

RL = 10 k to V

0

TA = 25

8.0

6.0

4.0

, OUTPUT VOL TAGE (V)

O

2.0

V

0

0 2.0 4.0 6.0 8.0 1

in

°

C

Vin, INPUT VOLTAGE (V)

Figure 3. Comparator Threshold V oltage

versus T emperature

4.630

4.620

4.610

4.600

4.590

, THRESHOLD VOLTAGE (V)

th

4.580

V

RL = 10 k to V

in

Upper Threshold

High State Output

Lower Threshold

Low State Output

Figure 2. Reset Output Voltage versus

Input Voltage

5.0
RL = 10 k to V
TA = 25

4.0

3.0

2.0

, OUTPUT VOL TAGE (V)

O

1.0

V

0

0

4.56
0

in

°

C

4.58
0

Vin, INPUT VOLTAGE (V)

4.60
0

4.62
0

4.64
0

Figure 4. Input Current versus Input Voltage

1.0

0.8

0.6

0.4

, INPUT CURRENT (mA)

0.2

in

I

TA = +25

°

C

+85

°

C

TA = +25°C

–40°C

°

C

–40

+85°C

4.570
–55 –25 0 25 50 75 100 125

TA, AMBIENT TEMPERATURE (

Figure 5. Reset

Output Saturation versus

°

C)

Sink Current

2.0
V

= 4.0 V

in

1.5

1.0

, OUTPUT SA TURATION (V)

0.5

OL

V

0

010203040

TA = 85

°

C

I

, SINK CURRENT (mA)

Sink

TA = 25

°

C

TA = –40

°

C

90%

5.0 V –

4.0 V –

10%

0

0 2.0 4.0 6.0 8.0 10

Vin, INPUT VOLTAGE (V)

Delay Time

10k

Reset

200 ns/DIV

Vin = 5.0 V to 4.0 V
RL = 10 k

°

C

TA = 25

5.0V

4.0V

Figure 6. Reset

Reset

V

in

V

in

REF

MOTOROLA ANALOG IC DEVICE DATA

3

MC34064 MC33064

Figure 7. Clamp Diode Forward Current

versus V oltage

80

Vin = 0 V

°

C

TA = 25

60

40

20

, FORWARD CURRENT (mA)

F

I

0

0 0.4 0.8 1.2 1.6

VF, FORWARD VOLTAGE (V)

Figure 8. Low V oltage Microprocessor Reset

+

2 (2)

Power

Supply

–

–
+

1.2 V

ref

3 (4)

Figure 9. Low V oltage Microprocessor Reset with Additional Hysteresis

R

H

+

Power

Supply

–

Comparator hysteresis can be increased with the addition of resistor R
simplified and does not account for the change of input current I
(Figure 4). An increase of the lower threshold

4.59 V. The equations are accurate to

I

in

2 (2)

1 (1)

R

L

Reset

–

+

1.2V

ref

3 (4)

as VCC crosses the comparator threshold

∆

V

th(lower)

±

10% with RH less than 150 Ω and RL between 1.5 kΩ and 10 k

in

will be observed due to Iin which is typically 340 µA at

4.6 R

VH

≈

∆

V

th(lower)

Where: RH ≤ 150

Where: RL ≥ 1.5 Ω, ≤ 10 k

. The hysteresis equation has been

H

R

1 (1)

C

Reset

DLY

Microprocessor

Circuit

A time delayed reset can be accomplished with the
addition of C
power supply rise times (<500 ns) it is recommended
that the RC
V

th(MPU)

. For systems with extremely fast

DLY

time constant be greater than 5.0

DLY

is the microprocessor reset input threshold.

1

V

th(MPU)

1 –

V

in

V

H

(mV)

20 0 0 0
51 3.4 10 1.5
40 6.8 20 4.7
81 6.8 20 1.5
71 10 30 2.7

112 10 30 1.5
100 16 47 2.7
164 16 47 1.5
190 34 100 2.7
327 34 100 1.5
276 51 150 2.7
480 51 150 1.5

H

+ 0.02

R

L

≈ 340 RH x 10

t

= RC

DLY

Microprocessor

Circuit

–6

Ω

Ω

DLY

In

Ω.

µ

s.

Test Data

∆V

th

(mV)

R
(Ω)

R

H

(kΩ)

L

4

MOTOROLA ANALOG IC DEVICE DATA

MC34064 MC33064

Figure 10. V oltage Monitor Figure 11. Solar Powered Battery Charger

+

Power

Supply

–

Vin = 11.5

to 14.5V

4.7k

2 (2)

470

1.2V

2 (2)

–
+

ref

3 (4)

+

1.2V

ref

1.0k

1 (1)

+
–

2 (2)

1.2V

–
+

ref

3 (4)

1 (1)

Solar
Cells

Figure 12. Low Power Switching Regulator

25

µ

H

MPSW51A

470

68022

+

330

1 (1)
–
+

1N5819

1.2k

1N756

VO = 5.0 V

IO = 50 mA

+

Test Conditions Results

Line Regulation Vin = 11.5 V to 14.5 V, IO = 50 mA 35 mV
Load Regulation Vin = 12.6 V, IO = 0 mA to 50 mA 12 mV
Output Ripple Vin = 12.6 V, IO = 50 mA 60 mVpp
Efficiency Vin = 12.6 V, IO = 50 mA 77%

3 (4)

Figure 13. MOSFET Low Voltage Gate Drive Protection

V

CC

R

L

4.6V

2 (2)

–
+

1.2V

ref

3 (4)

Overheating of the logic level power MOSFET due to insufficient gate voltage can be prevented with the above
circuit. When the input signal is below the 4.6 V threshold of the MC34064, its output grounds the gate of the L
MOSFET .

270

1 (1)

MTP3055EL

2

MOTOROLA ANALOG IC DEVICE DATA

5

SEATING
PLANE

MC34064 MC33064

OUTLINE DIMENSIONS

P SUFFIX

PLASTIC PACKAGE

CASE 29–04

A

B

(TO–226AA)

ISSUE AD

R

P

L

XX

H

V

1

F

G

K

D

J

C

SECTION X–X

N

N

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.

4. DIMENSION F APPLIES BETWEEN P AND L.
DIMENSION D AND J APPLY BETWEEN L AND K
MINIMUM. LEAD DIMENSION IS UNCONTROLLED
IN P AND BEYOND DIMENSION K MINIMUM.

DIM MIN MAX MIN MAX

A 0.175 0.205 4.45 5.20
B 0.170 0.210 4.32 5.33
C 0.125 0.165 3.18 4.19
D 0.016 0.022 0.41 0.55
F 0.016 0.019 0.41 0.48

G 0.045 0.055 1.15 1.39

H 0.095 0.105 2.42 2.66
J 0.015 0.020 0.39 0.50
K 0.500 ––– 12.70 –––
L 0.250 ––– 6.35 –––
N 0.080 0.105 2.04 2.66
P ––– 0.100 ––– 2.54
R 0.115 ––– 2.93 –––
V 0.135 ––– 3.43 –––

MILLIMETERSINCHES

–T–

–B–

D SUFFIX

PLASTIC PACKAGE

CASE 751–05

(SO–8)

ISSUE P

–A–

58

1

4

M

B

M

4X P

0.25 (0.010)

J

_

X 45

R

G

_

M

C

SEATING

K

8X D

PLANE

SS

A0.25 (0.010)MTB

F

NOTES:

1. DIMENSIONS A AND B ARE DATUMS AND T IS A
DATUM SURFACE.

2. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

3. DIMENSIONS ARE IN MILLIMETER.

4. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.

5. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

6. DIMENSION D DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE D DIMENSION AT MAXIMUM MATERIAL
CONDITION.

MILLIMETERS

DIM MIN MAX

A 4.80 5.00
B 3.80 4.00
C 1.35 1.75
D 0.35 0.49

F 0.40 1.25
G 1.27 BSC
J 0.18 0.25
K 0.10 0.25
M 0 7
P 5.80 6.20
R 0.25 0.50

__

6

MOTOROLA ANALOG IC DEVICE DATA

PIN 1 ID

SEATING
PLANE

–T–

0.038 (0.0015)

MC34064 MC33064

OUTLINE DIMENSIONS

DM SUFFIX

PLASTIC PACKAGE

CASE 846A–02

(Micro–8)

–A–

K

G

–B–

8 PL

D

0.08 (0.003) A

M

C

H

J

ISSUE B

S

B

T

S

L

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSION A DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS. MOLD FLASH,
PROTRUSIONS OR GATE BURRS SHALL NOT
EXCEED 0.15 (0.006) PER SIDE.

4. DIMENSION D DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.25 (0.010)
PER SIDE.

DIM MIN MAX MIN MAX

A 2.90 3.10 0.114 0.122
B 2.90 3.10 0.114 0.122
C ––– 1.10 ––– 0.043
D 0.25 0.40 0.010 0.016
G 0.65 BSC 0.026 BSC
H 0.05 0.15 0.002 0.006

J 0.13 0.23 0.005 0.009

K 4.75 5.05 0.187 0.199

L 0.40 0.70 0.016 0.028

INCHESMILLIMETERS

MOTOROLA ANALOG IC DEVICE DATA

7

MC34064 MC33064

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
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Opportunity/Affirmative Action Employer.

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8

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MOTOROLA ANALOG IC DEVICE DATA

MC34064/D

*MC34064/D*