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MC33164 Datasheet

MICROPOWER UNDERVOLTAGE SENSING CIRCUITS

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Order this document by MC34164/D
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. 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 3.0 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 µA
Economical TO–226AA, SO–8 and Micro–8 Surface Mount Packages
MC34164
MC33164
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 29
(TO–226AA)
123
Pin 1. Reset
2. Input
3. Ground
D SUFFIX
PLASTIC PACKAGE 8
CASE 751
(SO–8)
1
DM SUFFIX
PLASTIC PACKAGE
CASE 846A
(Micro–8)
8
1
Representative Block Diagram
Input 2 (2)
Reset
1 (1)
Reset 1
Input 2
N.C. 3
Ground 4
8 N.C.
7 N.C.
6 N.C.
5 N.C.
(Top View)
1.2 Vref
Gnd 3 (4)
=
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.
This device contains 28 active transistors.
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC34164D–3
MC34164D–5
MC34164DM–3
MC34164DM–5
MC34164P–3
MC34164P–5
MC33164D–3
MC33164D–5
MC33164DM–3
MC33164DM–5
MC33164P–3
MC33164P–5
TA = 0° to +70°C
TA = –40° to +125°C
SO–8
Micro–8
TO–226AA
SO–8
Micro–8
TO–226AA
© Motorola, Inc. 1996
Rev 1
1


Motorola Electronic Components Datasheet

MC33164 Datasheet

MICROPOWER UNDERVOLTAGE SENSING CIRCUITS

No Preview Available !

MAXIMUM RATINGS
Rating
Power Input Supply Voltage
Reset Output Voltage
Reset Output Sink Current
Clamp Diode Forward Current, Pin 1 to 2 (Note 1)
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
Operating Ambient Temperature Range
MC34164 Series
MC33164 Series
Storage Temperature Range
NOTE: ESD data available upon request.
MC34164 MC33164
Symbol
Vin
VO
ISink
IF
Value
–1.0 to 12
–1.0 to 12
Internally
Limited
100
PD
RθJA
PD
RθJA
PD
RθJA
TJ
TA
Tstg
700
178
700
178
520
240
+150
0 to +70
– 40 to + 85
– 65 to +150
Unit
V
V
mA
mA
mW
°C/W
mW
°C/W
mW
°C/W
°C
°C
°C
MC34164–3, MC33164–3 SERIES
ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA 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 (Vin Increasing)
Low State Output (Vin Decreasing)
Hysteresis (ISink = 100 µA)
VIH 2.55 2.71
VIL 2.55 2.65
VH 0.03 0.06
RESET OUTPUT
Output Sink Saturation
(Vin = 2.4 V, ISink = 1.0 mA)
(Vin = 1.0 V, ISink = 0.25 mA)
VOL
– 0.14
– 0.1
Output Sink Current (Vin, Reset = 2.4 V)
Output Off–State Leakage
(Vin, Reset = 3.0 V)
(Vin, Reset = 10 V)
ISink
IR(leak)
6.0
12
0.02
0.02
Clamp Diode Forward Voltage, Pin 1 to 2 (IF = 5.0 mA)
VF 6.0 0.9
TOTAL DEVICE
Operating Input Voltage Range
Vin 1.0 to 10
Quiescent Input Current
Vin = 3.0 V
Vin = 6.0 V
Iin
– 9.0
– 24
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. Tlow = 0°C for MC34164
Thigh = + 70°C for MC34164
3. Tlow = – 40°C for MC33164 Thigh = + 85°C for MC33164
2.80
2.80
0.4
0.3
30
0.5
1.0
1.2
15
40
V
V
mA
µA
V
V
µA
2 MOTOROLA ANALOG IC DEVICE DATA


Part Number MC33164
Description MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
Maker Motorola
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MC33164 Datasheet PDF





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