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
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8 1 1
2
3
TO−226AA P SUFFIX CASE 29 5 8 1
1
PIN CONNECTIONS Reset 1
8 N.C.
Input 2
7 N.C.
N.C. 3
6 N.C.
Ground 4
5 N.C. (Top View)
Pin 1. 2. 3. 4. 5.
Reset
TSOP−5 SN SUFFIX CASE 483
Micro8 DM SUFFIX CASE 846A
TSOP−5
Input
SOIC−8 D SUFFIX CASE 751
Ground Input Reset NC NC
TO−226AA Pin 1. Reset 2. Input 3. Ground
ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet.
1.2 Vref
= Sink Only Positive True Logic
DEVICE MARKING INFORMATION See general marking information in the device marking section on page 9 of this data sheet.
GND
Figure 1. Representative Block Diagram This device contains 28 active transistors.
© Semiconductor Components Industries, LLC, 2005
August, 2005 − Rev. 16
1
Publication Order Number: MC34164/D
MC34164, MC33164, NCV33164 MAXIMUM RATINGS Symbol
Value
Unit
Power Input Supply Voltage
Rating
Vin
−1.0 to 12
V
Reset Output Voltage
VO
−1.0 to 12
V
Reset Output Sink Current
ISink
Internally Limited
mA
IF
100
mA
PD RJA
700 178
mW °C/W
PD RJA
700 178
mW °C/W
PD RJA
520 240
mW °C/W
Operating Junction Temperature
TJ
+150
°C
Operating Ambient Temperature Range MC34164 Series MC33164 Series, NCV33164
TA
Storage Temperature Range
Tstg
Clamp Diode Forward Current, Reset to Input Pin (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
°C 0 to +70 − 40 to +125
Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Machine Model (MM)
°C
− 65 to +150
ESD
V 4000 200
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 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
VIH VIL VH
2.55 2.55 0.03
2.71 2.65 0.06
2.80 2.80 −
− −
0.14 0.1
0.4 0.3
6.0
12
30
− −
0.02 0.02
0.5 1.0
VF
0.6
0.9
1.2
V
Operating Input Voltage Range
Vin
1.0 to 10
−
−
V
Quiescent Input Current Vin = 3.0 V Vin = 6.0 V
Iin − −
9.0 24
15 40
COMPARATOR Threshold Voltage High State Output (Vin Increasing) Low State Output (Vin Decreasing) Hysteresis (ISink = 100 A)
V
RESET OUTPUT Output Sink Saturation (Vin = 2.4 V, ISink = 1.0 mA) (Vin = 1.0 V, ISink = 0.25 mA)
VOL
Output Sink Current (Vin, Reset = 2.4 V)
ISink
V
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)
mA A
IR(leak)
TOTAL DEVICE
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. Tlow = 0°C for MC34164 Thigh = +70°C for MC34164 = − 40°C for MC33164, NCV33164 = +125°C for MC33164, NCV33164
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MC34164, MC33164, NCV33164 MC34164−5, MC33164−5 SERIES, NCV33164−5 ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Notes 5 & 6], unless otherwise noted.) Characteristic
Symbol
Min
Typ
Max
Unit
VIH VIL VH
4.15 4.15 0.02
4.33 4.27 0.09
4.45 4.45 −
− −
0.14 0.1
0.4 0.3
7.0
20
50
− −
0.02 0.02
0.5 2.0
VF
0.6
0.9
1.2
V
Operating Input Voltage Range
Vin
1.0 to 10
−
−
V
Quiescent Input Current Vin = 5.0 V Vin = 10 V
Iin − −
12 32
20 50
COMPARATOR V
Threshold Voltage High State Output (Vin Increasing) Low State Output (Vin Decreasing) Hysteresis (ISink = 100 A) RESET OUTPUT Output Sink Saturation (Vin = 4.0 V, ISink = 1.0 mA) (Vin = 1.0 V, ISink = 0.25 mA)
VOL
Output Sink Current (Vin, Reset = 4.0 V)
V
ISink
mA A
IR(leak)
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) TOTAL DEVICE
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. Tlow = 0°C for MC34164 Thigh = +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.
10 RL = 82 k to Vin TA = 25°C
8.0
VO , OUTPUT VOLTAGE (V)
VO , OUTPUT VOLTAGE (V)
10
6.0 4.0 2.0 0
RL = 82 k to Vin TA = 25°C
8.0 6.0 4.0 2.0 0
0
2.0
4.0 6.0 Vin, INPUT VOLTAGE (V)
8.0
0
10
Figure 2. MC3X164−3 Reset Output Voltage versus Input Voltage
2.0
4.0 6.0 Vin, INPUT VOLTAGE (V)
8.0
Figure 3. MC3X164−5 Reset Output Voltage versus Input Voltage
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10
5.0
5.0
4.0
4.0
V O , OUTPUT VOLTAGE (V)
V O , OUTPUT VOLTAGE (V)
MC34164, MC33164, NCV33164
3.0 2.0 1.0
3.0 2.0 1.0 RL = 82 k to Vin TA = 25°C
RL = 82 k to Vin TA = 25°C 0 2.62
2.66
2.70
2.74
0 4.22
2.78
4.26
Vin, INPUT VOLTAGE (V)
Figure 4. MC3X164−3 Reset Output Voltage versus Input Voltage
Upper Threshold High State Output
V in , THRESHOLD VOLTAGE (V)
V in , THRESHOLD VOLTAGE (V)
4.38
4.36
2.72
2.68
2.64
Lower Threshold Low State Output
2.60 −50
−25
0
25
50
75
100
Upper Threshold High State Output
4.32
4.28
4.24
Lower Threshold Low State Output
4.20 −50
125
−25
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (°C)
TA, AMBIENT TEMPERATURE (°C)
Figure 6. MC3X164−3 Comparator Threshold Voltage versus Temperature
Figure 7. MC3X164−5 Comparator Threshold Voltage versus Temperature
50
50 TA = 25°C
40
I in, INPUT CURRENT (μ A)
I in, INPUT CURRENT (μ A)
4.34
Figure 5. MC3X164−5 Reset Output Voltage versus Input Voltage
2.76
30 TA = 0°C
20
TA = 70°C
10 0
4.30
Vin, INPUT VOLTAGE (V)
0
2.0
4.0
6.0
8.0
40
20
TA = 0°C TA = 70°C
10 0
10
TA = 25°C
30
0
2.0
4.0
6.0
8.0
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
Figure 8. MC3X164−3 Input Current versus Input Voltage
Figure 9. MC3X164−5 Input Current versus Input Voltage
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10
MC34164, MC33164, NCV33164 4.0 Vin = 2.4 V 3.0
V OL, OUTPUT SATURATION (V)
V OL, OUTPUT SATURATION (V)
4.0
TA = 70°C TA = 25°C
2.0
TA = 0°C
TA = 25°C TA = 0°C
1.0 TA = 70°C 0
TA = 25°C
Vin, Reset = 4 V
TA = 70°C
TA = 0°C
3.0 TA = 25°C
2.0
TA = 0°C 1.0 TA = 70°C 0
0
4.0
8.0
12
16
20
4.0
0
8.0
12
16
VSink, SINK CURRENT (mA)
ISink, SINK CURRENT (mA)
Figure 10. MC3X164−3 Reset Output Saturation versus Sink Current
Figure 11. MC3X164−5 Reset Output Saturation versus Sink Current
I F , FORWARD CURRENT (mA)
32 Vin = 5.0 V to 4.0 V RL = 43 k TA = 25°C
Reset Vin = 0 V TA = 25°C
24
90% Vin 5.0 V
16
4.0 V Vin
8.0
10 %
43k
5.0V 4.0V
Reset
Ref
0
0
0.4
0.8
1.2
5.0 s/DIV
1.6
VF , FORWARD VOLTAGE (V)
Figure 12. Clamp Diode Forward Current versus Voltage
Figure 13. Reset Delay Time (MC3X164−5 Shown)
R
Input Power Supply
Reset
Microprocessor Circuit
Reset CDLY
1.2 Vref tDLY = RCDLY In
ǒ
1−
GND
1 Vth(MPU) Vin
A time delayed reset can be accomplished with the addition of CDLY. For systems with extremely fast power supply rise times (
