Document:
Semiconductor Components Industries, LLC, 2003
March, 2003 - Rev. 10
40
Publication Order Number:
MC34164/D
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, 8-pin SO-8 and Micro8
TM
surface mount packages. The NCV device is packaged in SO-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
mA
Economical TO- 226AA, SO- 8 and Micro8 Surface Mount Packages
This device contains 28 active transistors.
Figure 1. Representative Block Diagram
1.2 V
ref
2 (2)
1 (1)
3 (4)
Reset
Gnd
Input
=
Sink Only
Positive True Logic
Pin numbers adjacent to terminals are for the 3-pin TO-226AA package.
Pin numbers in parenthesis are for the 8-lead packages.
See detailed ordering and shipping information in the package
dimensions section on page 46 of this data sheet.
ORDERING INFORMATION
SO-8
D SUFFIX
CASE 751
8
1
Micro8
DM SUFFIX
CASE 846A
8
1
See general marking information in the device marking
section on page 46 of this data sheet.
DEVICE MARKING INFORMATION
(Top View)
3
1
N.C.
Ground
N.C.
N.C.
2
4
8
7
6
5 N.C.
N.C.
Input
Reset
PIN CONNECTIONS
1
2
3
TO-226AA
P SUFFIX
CASE 29
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MC34164, MC33164, NCV33164
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41
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Input Supply Voltage
V
in
-1.0 to 12
V
Reset Output Voltage
V
O
-1.0 to 12
V
Reset Output Sink Current
I
Sink
Internally
Limited
mA
Clamp Diode Forward Current, Pin 1 to 2 (Note 1)
IF
100
mA
Power Dissipation and Thermal Characteristics
P Suffix, Plastic Package
Maximum Power Dissipation @ T
A
= 25
C
Thermal Resistance, Junction-to-Air
D Suffix, Plastic Package
Maximum Power Dissipation @ T
A
= 25
C
Thermal Resistance, Junction-to-Air
DM Suffix, Plastic Package
Maximum Power Dissipation @ T
A
= 25
C
Thermal Resistance, Junction-to-Air
P
D
R
q
JA
P
D
R
q
JA
P
D
R
q
JA
700
178
700
178
520
240
mW
C/W
mW
C/W
mW
C/W
Operating Junction Temperature
T
J
+150
C
Operating Ambient Temperature Range
MC34164 Series
MC33164 Series, NCV33164
T
A
0 to +70
- 40 to +125
C
Storage Temperature Range
T
stg
- 65 to +150
C
NOTE:
ESD data available upon request.
MC34164-3, MC33164-3 SERIES, NCV33164-3
ELECTRICAL CHARACTERISTICS
(For typical values T
A
= 25
C, for min/max values T
A
is the operating ambient temperature
range that applies [Notes 2 & 3], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
COMPARATOR
Threshold Voltage
High State Output (V
in
Increasing)
Low State Output (V
in
Decreasing)
Hysteresis (I
Sink
= 100
m
A)
V
IH
V
IL
V
H
2.55
2.55
0.03
2.71
2.65
0.06
2.80
2.80
-
V
RESET OUTPUT
Output Sink Saturation
(V
in
= 2.4 V, I
Sink
= 1.0 mA)
(V
in
= 1.0 V, I
Sink
= 0.25 mA)
V
OL
-
-
0.14
0.1
0.4
0.3
V
Output Sink Current (V
in
, Reset = 2.4 V)
I
Sink
6.0
12
30
mA
Output Off-State Leakage
(V
in
, Reset = 3.0 V)
(V
in
, Reset = 10 V)
I
R(leak)
-
-
0.02
0.02
0.5
1.0
m
A
Clamp Diode Forward Voltage, Pin 1 to 2 (I
F
= 5.0 mA)
V
F
0.6
0.9
1.2
V
TOTAL DEVICE
Operating Input Voltage Range
V
in
1.0 to 10
-
-
V
Quiescent Input Current
V
in
= 3.0 V
V
in
= 6.0 V
I
in
-
-
9.0
24
15
40
m
A
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
low
= 0
C for MC34164
T
high
= +70
C for MC34164
= - 40
C for MC33164, NCV33164
= +125
C for MC33164, NCV33164
MC34164, MC33164, NCV33164
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42
MC34164-5, MC33164-5 SERIES, NCV33164-5
ELECTRICAL CHARACTERISTICS
(For typical values T
A
= 25
C, for min/max values T
A
is the operating ambient temperature
range that applies [Notes 5 & 6], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
COMPARATOR
Threshold Voltage
High State Output (V
in
Increasing)
Low State Output (V
in
Decreasing)
Hysteresis (I
Sink
= 100
m
A)
V
IH
V
IL
V
H
4.15
4.15
0.02
4.33
4.27
0.09
4.45
4.45
-
V
RESET OUTPUT
Output Sink Saturation
(V
in
= 4.0 V, I
Sink
= 1.0 mA)
(V
in
= 1.0 V, I
Sink
= 0.25 mA)
V
OL
-
-
0.14
0.1
0.4
0.3
V
Output Sink Current (V
in
, Reset = 4.0 V)
I
Sink
7.0
20
50
mA
Output Off-State Leakage
(V
in
, Reset = 5.0 V)
(V
in
, Reset = 10 V)
I
R(leak)
-
-
0.02
0.02
0.5
2.0
m
A
Clamp Diode Forward Voltage, Pin 1 to 2 (I
F
= 5.0 mA)
V
F
0.6
0.9
1.2
V
TOTAL DEVICE
Operating Input Voltage Range
V
in
1.0 to 10
-
-
V
Quiescent Input Current
V
in
= 5.0 V
V
in
= 10 V
I
in
-
-
12
32
20
50
m
A
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
low
= 0
C for MC34164
T
high
= +70
C for MC34164
= - 40
C for MC33164, NCV33164
= +125
C for MC33164, NCV33164
7. NCV prefix is for automotive and other applications requiring site and change control.
0
V
in
, INPUT VOLTAGE (V)
R
L
= 82 k to V
in
T
A
= 25
C
2.0
4.0
6.0
8.0
10
V
O
, OUTPUT
VOL
T
AGE (V)
Figure 2. MC3X164-3 Reset Output
Voltage versus Input Voltage
0
V
in
, INPUT VOLTAGE (V)
Figure 3. MC3X164-5 Reset Output
Voltage versus Input Voltage
R
L
= 82 k to V
in
T
A
= 25
C
2.0
4.0
6.0
8.0
10
V
O
, OUTPUT
VOL
T
AGE (V)
10
8.0
6.0
4.0
2.0
0
10
8.0
6.0
4.0
2.0
0
MC34164, MC33164, NCV33164
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43
I in
, INPUT
CURRENT
(
A)
V
in
,
THRESHOLD VOL
T
AGE (V)
V
O
, OUTPUT
VOL
T
AGE (V)
Figure 4. MC3X164-3 Reset Output
Voltage versus Input Voltage
- 50
T
A
, AMBIENT TEMPERATURE (
C)
- 25
0
25
50
75
100
125
V
in
,
THRESHOLD VOL
T
AGE (V)
Upper Threshold
High State Output
Lower Threshold
Low State Output
Figure 5. MC3X164-5 Reset Output
Voltage versus Input Voltage
4.22
V
in
, INPUT VOLTAGE (V)
4.26
4.30
4.34
4.38
Figure 6. MC3X164-3 Comparator Threshold
Voltage versus Temperature
Figure 7. MC3X164-5 Comparator Threshold
Voltage versus Temperature
Figure 8. MC3X164-3 Input Current
versus Input Voltage
V
O
,
O
UTPUT
V
O
LT
A
G
E
(
V
)
Figure 9. MC3X164-5 Input Current
versus Input Voltage
2.62
V
in
, INPUT VOLTAGE (V)
R
L
= 82 k to V
in
T
A
= 25
C
2.66
2.70
2.74
2.78
- 50
T
A
, AMBIENT TEMPERATURE (
C)
- 25
0
25
50
75
100
125
Upper Threshold
High State Output
Lower Threshold
Low State Output
V
in
, INPUT VOLTAGE (V)
2.0
4.0
6.0
8.0
10
T
A
= 0
C
T
A
= 70
C
I in
, INPUT
CURRENT
(
A)
0
V
in
, INPUT VOLTAGE (V)
2.0
4.0
6.0
8.0
10
R
L
= 82 k to V
in
T
A
= 25
C
4.36
4.32
4.28
4.24
4.20
5.0
4.0
3.0
2.0
1.0
0
5.0
4.0
3.0
2.0
1.0
0
2.76
2.72
2.68
2.64
2.60
50
40
30
20
10
0
0
50
40
30
20
10
0
T
A
= 25
C
T
A
= 0
C
T
A
= 70
C
T
A
= 25
C
MC34164, MC33164, NCV33164
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44
T
A
= 0
C
V
OL
, OUTPUT
SA
TURA
TION (V)
0
I
Sink
, SINK CURRENT (mA)
4.0
8.0
12
16
20
T
A
= 70
C
T
A
= 0
C
V
in
, Reset = 4 V
Figure 10. MC3X164-3 Reset Output
Saturation versus Sink Current
Figure 11. MC3X164-5 Reset Output
Saturation versus Sink Current
Figure 12. Clamp Diode Forward Current
versus Voltage
V
OL
, OUTPUT
SA
TURA
TION (V)
Figure 13. Reset Delay Time
(MC3X164-5 Shown)
0
V
Sink
, SINK CURRENT (mA)
4.0
8.0
12
16
, FORWARD VOLTAGE (V)
0.4
0.8
1.2
1.6
I F
, FOR
W
ARD CURRENT
(mA)
20
T
A
= 25
C
Figure 14. Low Voltage Microprocessor Reset
Power
Supply
1.2 V
ref
Microprocessor
Circuit
2 (2)
R
1 (1)
3 (4)
Reset
C
DLY
A time delayed reset can be accomplished with the addition of C
DLY
. For systems with extremely fast power
supply rise times (< 500 ns) it is recommended that the RCDLY time constant be greater than 5.0
ms. V
th(MPU)
is
the microprocessor reset input threshold.
t
DLY
= R
CDLY
In
1 -
V
th(MPU)
1
V
in
T
A
= 25
C
T
A
= 0
C
T
A
= 70
C
T
A
= 25
C
V
in
= 0 V
T
A
= 25
C
V
F
V
in
= 2.4 V
T
A
= 70
C
T
A
= 0
C
T
A
= 25
C
Reset
V
in
V
in
= 5.0 V to 4.0 V
R
L
= 43 k
T
A
= 25
C
Reset
V
in
5.0V
4.0V
Ref
43k
90%
5.0 V
4.0 V
5.0
ms/DIV
10
%
4.0
3.0
2.0
1.0
0
4.0
3.0
2.0
1.0
0
32
24
16
8.0
0
0
T
A
= 70
C
MC34164, MC33164, NCV33164
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45
Figure 15. Low Voltage Microprocessor Reset With Additional Hysteresis
(MC3X164-5 Shown)
Power
Supply
1.2 V
ref
Microprocessor
Circuit
2 (2)
R
L
1 (1)
3 (4)
Reset
Comparator hysteresis can be increased with the addition of resistor R
H
. The hysteresis equation has been simplified and does not account for the change of input current
I
in
as V
in
crosses the comparator threshold (Figure 8). An increase of the lower threshold
DV
th(lower)
will be observed due to I
in
which is typically 10
mA at 4.3 V. The
equations are accurate to
10% with R
H
less than 1.0 k
W and R
L
between 4.3 k
W and 43 kW.
V
H
4.3 R
H
R
H
MC3X164-5
I
in
V
in
Test Data
V
H
(mV)
D
V
th
(mV)
R
H
(
W
)
R
L
(k
W
)
60
103
123
160
155
199
280
262
306
357
421
530
0
1.0
1.0
1.0
2.2
2.2
2.2
4.7
4.7
4.7
4.7
4.7
0
100
100
100
220
220
220
470
470
470
470
470
43
10
6.8
4.3
10
6.8
4.3
10
8.2
6.8
5.6
4.3
R
L
+ 0.06
DV
th(lower)
10 R
H
x 10
- 6
where: R
H
1.0 k
W
43 k
W
R
L
4.3 k
W
Figure 16. Voltage Monitor
Figure 17. Solar Powered Battery Charger
Figure 18. MOSFET Low Voltage Gate Drive Protection Using the MC3X164-5
1.2 V
ref
2 (2)
270
1 (1)
3 (4)
Power
Supply
1.2 V
ref
2 (2)
1.0 k
1 (1)
3 (4)
1.2 V
ref
2 (2)
1 (1)
3 (4)
Solar
Cells
R
L
MTP3055EL
MC3X164-5
V
CC
4.3V
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 4.3 V threshold of the MC3X164-5, its
output grounds the gate of the L
2
MOSFET.
MC34164, MC33164, NCV33164
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46
ORDERING INFORMATION
Device
Package
Shipping
MC33164D-3
SO-8
98 Units / Rail
MC33164D-3R2
SO-8
2500 Units / Tape & Reel
NCV33164D-3R2*
SO-8
2500 Units / Tape & Reel
MC33164DM-3R2
Micro8
4000 Units / Tape & Reel
MC33164P-3
TO-92
2000 Units / Box
MC33164P-3RA
TO-92
2000 Units / Tape & Reel
MC33164P-3RP
TO-92
2000 Units / Pack
MC33164D-5
SO-8
98 Units / Rail
MC33164D-5R2
SO-8
2500 Units / Tape & Reel
NCV33164D-5R2*
SO-8
2500 Units / Tape & Reel
MC33164DM-5R2
Micro8
4000 Units / Tape & Reel
MC33164P-5
TO-92
2000 Units / Box
MC33164P-5RA
TO-92
2000 Units / Tape & Reel
MC33164P-5RP
TO-92
2000 Units / Pack
MC34164D-3
SO-8
98 Units / Rail
MC34164D-3R2
SO-8
2500 Units / Tape & Reel
MC34164DM-3R2
Micro8
4000 Units / Tape & Reel
MC334164P-3
TO-92
2000 Units / Box
MC34164P-3RP
TO-92
2000 Units / Pack
MC34164D-5
SO-8
98 Units / Rail
MC34164D-5R2
SO-8
2500 Units / Tape & Reel
MC34164DM-5R2
Micro8
4000 Units / Tape & Reel
MC334164P-5
TO-92
2000 Units / Box
MC34164P-5RA
TO-92
2000 Units / Tape & Reel
MC34164P-5RP
TO-92
2000 Units / Pack
*NCV33164: T
low
= -40
C, T
high
= +125
C. Guaranteed by design. NCV prefix is for automotive and other applications requiring
site and change control.
ALYWy
3x164
1
8
SO-8
D SUFFIX
CASE 751
x
= Device Number 3 or 5
y
= Suffix Number 3 or 5
A
= Assembly Location
WL, L = Wafer Lot
YY, Y
= Year
WW, W = Work Week
MARKING DIAGRAMS
Micro8
MC33164DM
CASE 846A
Mlx0
YWW
AWL
1
8
TO-92
MC3x164P-y
CASE 29
MC3x1
64Py
YWW
Micro8
MC34164DM
CASE 846A
Mly0
YWW
AWL
1
8
TO-92
MC3x164P-yRA
MC3x164P-yRP
CASE 29
MC3x1
64P-y
YWW
1 2 3
1 2 3
MC34164, MC33164, NCV33164
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47
PACKAGE DIMENSIONS
TO-226AA
P SUFFIX
CASE 29-11
ISSUE AL
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
R
A
P
J
L
B
K
G
H
SECTION X-X
C
V
D
N
N
X X
SEATING
PLANE
1
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
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
0.021
0.407
0.533
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
---
SO-8
D SUFFIX
CASE 751-07
ISSUE AA
SEATING
PLANE
1
4
5
8
N
J
X 45
_
K
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER
SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN
EXCESS OF THE D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
6. 751-01 THRU 751-06 ARE OBSOLETE. NEW
STANDAARD IS 751-07
A
B
S
D
H
C
0.10 (0.004)
DIM
A
MIN
MAX
MIN
MAX
INCHES
4.80
5.00
0.189
0.197
MILLIMETERS
B
3.80
4.00
0.150
0.157
C
1.35
1.75
0.053
0.069
D
0.33
0.51
0.013
0.020
G
1.27 BSC
0.050 BSC
H
0.10
0.25
0.004
0.010
J
0.19
0.25
0.007
0.010
K
0.40
1.27
0.016
0.050
M
0
8
0
8
N
0.25
0.50
0.010
0.020
S
5.80
6.20
0.228
0.244
-X-
-Y-
G
M
Y
M
0.25 (0.010)
-Z-
Y
M
0.25 (0.010)
Z
S
X
S
M
_
_
_
_
MC34164, MC33164, NCV33164
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48
PACKAGE DIMENSIONS
Micro8
DM SUFFIX
CASE 846A-02
ISSUE F
S
B
M
0.08 (0.003)
A
S
T
DIM
MIN
MAX
MIN
MAX
INCHES
MILLIMETERS
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
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 B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.25 (0.010)
PER SIDE.
5. 846A-01 OBSOLETE, NEW STANDARD 846A-02.
-B-
-A-
D
K
G
PIN 1 ID
8 PL
0.038 (0.0015)
-T-
SEATING
PLANE
C
H
J
L
MC34164, MC33164, NCV33164
http://onsemi.com
49
Notes
MC34164, MC33164, NCV33164
http://onsemi.com
50
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MC34164/D
Micro8 is a trademark of International Rectifier.
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