Order this document by MC33465/D
Advance Information
Micropower Undervoltage
Sensing Circuits with
Programmable Output Delay
The MC33465 series are micropower undervoltage sensing circuits that
are specifically designed for use with battery powered microprocessor based
systems, where extended battery life is required. A choice of several
threshold voltages from 0.9 V to 4.5 V are available. This device features a
very low quiescent bias current of 1.0
µA
typical.
The MC33465 series features a highly accurate voltage reference, a
comparator with precise thresholds and built–in hysteresis to prevent erratic
reset operation, a choice of output configurations between open drain or
complementary, a time delayed output, which can be programmed by the
system designer, and guaranteed operation below 1.0 V with extremely low
standby current. This device is available in a SOT–23 5–pin surface mount
package.
Applications include direct monitoring of the MPU/logic power supply
used in appliance, automotive, industrial and portable equipment.
MC33465
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
WITH PROGRAMMABLE
OUTPUT DELAY
SEMICONDUCTOR
TECHNICAL DATA
MC33465 Features:
•
Extremely Low Standby Current of 1.0
µA
at Vin = 3.5 V
5
1
•
•
•
•
•
•
•
Wide Input Voltage Range (0.7 V to 10 V)
Monitors Power Supply Voltages from 1.1 V to 5.0 V
High Accuracy Detector Threshold (±2.5%)
Two Reset Output Types (Open Drain or Complementary Drive)
Programmable Output Delay by External Capacitor (100 ms typ. with
0.15
µF)
Surface Mount Package (SOT–23 5–Pin)
Convenient Tape and Reel (3000 per Reel)
PIN CONNECTIONS
Reset
Input
Package
Ground
1
2
3
(Top View)
4 N/C
5 CD
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23)
ORDERING INFORMATION
Device
MC33465N–09ATR
MC33465N–20ATR
MC33465N–27ATR
MC33465N–30ATR
MC33465N–45ATR
MC33465N–09CTR
MC33465N–20CTR
MC33465N–27CTR
MC33465N–30CTR
MC33465N–45CTR
Threshold
Voltage
0.9
2.0
2.7
3.0
4.5
0.9
2.0
2.7
3.0
4.5
Type
Open
O
Drain
Reset
30°
80°C
TA = –30° to +80°C
Compl.
C
l
MOS
Reset
SOT–23
SOT 23
Operating
Temperature Range
Other voltages from 0.9 to 6.0 V, in 0.1 V increments, are available. Consult factory for
information.
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
©
Motorola, Inc. 1996
Rev 0
MOTOROLA ANALOG IC DEVICE DATA
1
MC33465
Representative Block Diagrams
MC33465N–YYATR
Open Drain Output Configuration
2
Input
1
Reset
2
MC33465N–YYCTR
Complementary Output Configuration
Input
RD
RD
1
Reset
Vref
Vref
3
Gnd
5
CD
YY Denotes Threshold Voltage
3
Gnd
5
CD
This device contains 28 active transistors.
MAXIMUM RATINGS
ÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁ
Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁ
Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Power Input Supply Voltage
Reset Output Voltage
Vin
0 to 12
V
V
VO
IO
–0.3 to 12
70
Reset Output Current (Source or Sink)
mA
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation at TA = 25°C
Case 1212 (SOT–23) N Suffix
Thermal Resistance, Junction–to–Ambient
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
PD
150
667
mW
R
θJA
TJ
TA
°C/W
°C
°C
°C
+125
–30 to +80
Tstg
–40 to +125
260°C, 10 s
Lead Temperature (Soldering)
Tsolder
Rating
Symbol
Value
Unit
2
MOTOROLA ANALOG IC DEVICE DATA
MC33465
ELECTRICAL CHARACTERISTICS
(For all values TA = 25°C (Note 1), unless otherwise noted.)
Characteristic
SENSE COMPARATOR
Symbol
Min
Typ
Max
Unit
ÁÁÁ Á Á Á Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á
Threshold Voltage
High to Low State Output (Vin Decreasing)
09 Suffix
18 Suffix
27 Suffix
36 Suffix
45 Suffix
Threshold Hysteresis (Vin Increasing)
09 Suffix
18 Suffix
27 Suffix
36 Suffix
45 Suffix
Threshold Voltage Temperature Coefficient
V
VIL
0.878
1.755
2.633
3.51
4.387
0.027
0.054
0.081
0.108
0.135
TC
–
0.9
1.8
2.7
3.6
4.5
0.922
1.845
2.767
3.69
4.612
0.063
0.126
0.189
0.252
0.315
–
PPM/°C
VH
0.045
0.09
0.135
0.18
0.225
±100
V
ÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁ Á Á Á Á
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁ Á Á Á Á
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á
ÁÁÁ Á Á Á Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á Á
RESET OUTPUT
Output Voltage
High State (Complementary Output: Isource = 1.0 mA)
Low State (Complementary or Open Drain Output: Isink = 1.0 mA)
Output Sink Current (Vin = 1.5 V, VOL = 0.5 V)
V
VOH
VOL
IOL
Vin – 2.1
–
1.0
1.0
Vin – 1.0
0.25
2.0
2.0
Vin
0.5
–
–
mA
mA
Output Source Current (Vin = 4.5 V, VOH = 2.4 V)
IOH
DELAY OUTPUT
Output Sink Current (Vin = 1.5 V, VOL = 0.5 V)
Delay Resistance
IOL
RD
0.2
0.5
0.8
1.0
–
mA
2.0
MΩ
TOTAL DEVICE
Operating Input Voltage Range
Quiescent Input Current
Vin = 4.34 V
Vin = 6.50 V
Vin
Iin
0.8 to 10
–
–
–
–
V
µA
5.5
1.3
11
3.9
NOTE:
1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
MOTOROLA ANALOG IC DEVICE DATA
3
MC33465
Figure 1. Reset Low State Sink Current versus
Output Voltage
16
I O , OUTPUT SINK CURRENT (mA)
14
12
10
8.0
2.0 V
6.0
4.0
2.0
0
0
0.5
1.0
1.5 V
Vin = 2.5 V
MC33465N–45ATR
TA = 20°C
VO , OUTPUT VOLTAGE (V)
7.0
6.0
5.0
30°C
4.0
3.0
2.0
1.0
0
1.5
2.0
2.5
3.0
0
1.0
2.0
3.0
4.0
5.0
6.0
VOL, LOW STATE OUTPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
TA = –30°C
TA = 25°C
TA = 80°C
80°C, 20°C
Figure 2. Output Voltage versus Input Voltage
MC33465N–45ATR
470 kΩ Pull–up
Figure 3. Input Current versus Input Voltage
8.0
7.0
I in , SUPPLY CURRENT (
µ
A)
6.0
5.0
4.0
3.0
2.0
1.0
0
0
2.0
TA = –30°C
–30°C
4.0
6.0
8.0
10
Vin, INPUT VOLTAGE (V)
80°C
25°C
TA = 25°C
MC33465N–45ATR
TA = 80°C
V in , INPUT THRESHOLD VOLTAGE (V)
3.0
2.9
2.85
2.8
Figure 4. Comparator Input Threshold Voltage
versus Temperature
VIL + VH
VH
2.75
2.7
2.65
2.6
–40
MC33465N–27ATR
–20
0
20
40
60
80
TA, AMBIENT TEMPERATURE (°C)
VIL
Figure 5. Reset Output Sink Current
versus Input Voltage
12
I O, OUTPUT SINK CURRENT (mA)
10
8.0
80°C
6.0
4.0
2.0
0
MC33465N–27ATR
VOL = 0.5 V
4.0
TA = –30°C
25°C
IO , OUTPUT CURRENT (mA)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0
Figure 6. Reset Output Source Current
versus Input Voltage
MC33465N–27CTR
Vin – VO = 2.1 V
Vin – VO = 1.5 V
Vin – VO = 1.0 V
Vin – VO = 0.5 V
2.0
4.0
6.0
8.0
10
12
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
4
MOTOROLA ANALOG IC DEVICE DATA
MC33465
Figure 7. CD Sink Current versus Input Voltage
TA = –30°C
I sink , SINK CURRENT (mA)
25°C
8.0
80°C
6.0
4.0
2.0
0
12
16
14
12
10
8.0
6.0
4.0
2.0
Figure 8. CD Sink Current versus CD Voltage
MC33465N–27ATR
10 VOL = 0.5 V
CD , SINK CURRENT (mA)
Vin = 2.5 V
Vin = 2.0 V
Vin = 1.5 V
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Vin, INPUT VOLTAGE (V)
VCD, VOLTAGE (V)
1.8
R D, DELAY RESISTANCE (M
Ω
)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
–40
–20
0
20
40
60
80
Vth(D), DETECTOR THRESHOLD VOLTAGE (V)
Figure 9. Delay Resistance versus Temperature
Figure 10. Detector Threshold versus Temperature
1.9
1.8
1.7
1.6
Vin = 2.97 V
1.5
1.4
1.3
MC33465N–27ATR
1.2
–40
–20
0
20
40
60
80
TA, AMBIENT TEMPERATURE (°C)
TA, AMBIENT TEMPERATURE (°C)
1000
t p, OUTPUT DELAY TIME (ms)
Figure 11. Output Delay Time versus
Delay Capacitance
100
tD: Output Switch
Low to High
10
1.0
0.1
0.01
0.0001
tD: Output Switch
High to Low
0.001
0.01
0.1
CD, DELAY CAPACITANCE (µF)
MOTOROLA ANALOG IC DEVICE DATA
5
京公网安备 11010802033920号
EEWORLD
