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MC33161 Datasheet

UNIVERSAL VOLTAGE MONITORS

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Universal Voltage Monitors
The MC34161/MC33161 are universal voltage monitors intended for use
in a wide variety of voltage sensing applications. These devices offer the
circuit designer an economical solution for positive and negative voltage
detection. The circuit consists of two comparator channels each with
hysteresis, a unique Mode Select Input for channel programming, a pinned
out 2.54 V reference, and two open collector outputs capable of sinking in
excess of 10 mA. Each comparator channel can be configured as either
inverting or noninverting by the Mode Select Input. This allows over, under,
and window detection of positive and negative voltages. The minimum
supply voltage needed for these devices to be fully functional is 2.0 V for
positive voltage sensing and 4.0 V for negative voltage sensing.
Applications include direct monitoring of positive and negative voltages
used in appliance, automotive, consumer, and industrial equipment.
Unique Mode Select Input Allows Channel Programming
Over, Under, and Window Voltage Detection
Positive and Negative Voltage Detection
Fully Functional at 2.0 V for Positve Voltage Sensing and 4.0 V for
Negative Voltage Sensing
Pinned Out 2.54 V Reference with Current Limit Protection
Low Standby Current
Open Collector Outputs for Enhanced Device Flexibility
Order this document by MC34161/D
MC34161
MC33161
UNIVERSAL VOLTAGE
MONITORS
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Simplified Block Diagram
(Positive Voltage Window Detector Application)
VCC
8
1 2.54V
Reference
VS 7
2
+
++
2.8V
+–
1.27V
3
+
++
0.6V
+–
1.27V
6
5
4
MOTOROLA ANALOG IC DEVICE DATA
PIN CONNECTIONS
Vref 1
Input 1 2
Input 2 3
Gnd 4
8 VCC
7 Mode Select
6 Output 1
5 Output 2
(TOP VIEW)
ORDERING INFORMATION
Device
MC34161D
MC34161P
Operating
Temperature Range
TA = 0° to +70°C
Package
SO–8
Plastic DIP
MC33161D
MC33161P
TA = –40° to +85°C
SO–8
Plastic DIP
© Motorola, Inc. 1998
Rev 1.1
1


Motorola Electronic Components Datasheet

MC33161 Datasheet

UNIVERSAL VOLTAGE MONITORS

No Preview Available !

MC34161 MC33161
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Input Voltage
Comparator Input Voltage Range
Comparator Output Sink Current (Pins 5 and 6) (Note 1)
Comparator Output Voltage
Power Dissipation and Thermal Characteristics (Note 1)
P Suffix, Plastic Package, Case 626
Maximum Power Dissipation @ TA = 70°C
Thermal Resistance, Junction–to–Air
D Suffix, Plastic Package, Case 751
Maximum Power Dissipation @ TA = 70°C
Thermal Resistance, Junction–to–Air
Operating Junction Temperature
Operating Ambient Temperature (Note 3)
MC34161
MC33161
VCC
Vin
ISink
Vout
PD
RθJA
PD
RθJA
TJ
TA
40
– 1.0 to +40
20
40
V
V
mA
V
800 mW
100 °C/W
450
178
+150
0 to +70
– 40 to +85
mW
°C/W
°C
°C
Storage Temperature Range
Tstg – 55 to +150 °C
ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, for typical values TA = 25°C, for min/max values TA is the operating
ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
COMPARATOR INPUTS
Threshold Voltage, Vin Increasing (TA = 25°C)
Threshold Voltage, Vin Increasing (TA = Tmin to Tmax)
Vth
1.245
1.27
1.235
Threshold Voltage Variation (VCC = 2.0 V to 40 V)
Vth
7.0
Threshold Hysteresis, Vin Decreasing
VH 15
25
Threshold Difference |Vth1 – Vth2|
Reference to Threshold Difference (Vref – Vin1), (Vref – Vin2)
Input Bias Current (Vin = 1.0 V)
Input Bias Current (Vin = 1.5 V)
VD
VRTD
IIB
1.20
1.0
1.27
40
85
MODE SELECT INPUT
Mode Select Threshold Voltage (Figure 5) Channel 1
Mode Select Threshold Voltage (Figure 5) Channel 2
Vth(CH 1) Vref+0.15 Vref+0.23
Vth(CH 2)
0.3
0.63
COMPARATOR OUTPUTS
Output Sink Saturation Voltage (ISink = 2.0 mA)
Output Sink Saturation Voltage (ISink = 10 mA)
Output Sink Saturation Voltage (ISink = 0.25 mA, VCC = 1.0 V)
VOL – 0.05
– 0.22
– 0.02
Off–State Leakage Current (VOH = 40 V)
IOH –
0
REFERENCE OUTPUT
Output Voltage (IO = 0 mA, TA = 25°C)
Vref 2.48 2.54
Load Regulation (IO = 0 mA to 2.0 mA)
Line Regulation (VCC = 4.0 V to 40 V)
Total Output Variation over Line, Load, and Temperature
Short Circuit Current
Regload
Regline
Vref
ISC
2.45
0.6
5.0
8.5
TOTAL DEVICE
Power Supply Current (VMode, Vin1, Vin2 = Gnd) (VCC = 5.0 V)
Power Supply Current (VMode, Vin 1, Vin 2 = Gd) (VCC = 40 V)
ICC – 450
– 560
Operating Voltage Range (Positive Sensing)
Operating Voltage Range (Negative Sensing)
VCC
2.0
4.0
NOTES: 1. Maximum package power dissipation 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 MC34161
–40°C for MC33161
Thigh = +70°C for MC34161
+85°C for MC33161
1.295
1.295
15
35
15
1.32
200
400
Vref+0.30
0.9
0.3
0.6
0.2
1.0
2.60
15
15
2.60
30
700
900
40
40
V
mV
mV
mV
V
nA
V
V
µA
V
mV
mV
V
mA
µA
V
2 MOTOROLA ANALOG IC DEVICE DATA


Part Number MC33161
Description UNIVERSAL VOLTAGE MONITORS
Maker Motorola
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MC33161 Datasheet PDF






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