MC34161, MC33161,
NCV33161
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.
Features
• 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 Positive 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
• NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
• Pb-Free Packages are Available
VCC
8
1
2.54V Reference
VS 7
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2 |
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6 |
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2.8V |
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1.27V |
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3 |
+ |
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5 |
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+ 0.6V
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- |
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1.27V |
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MARKING |
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DIAGRAMS |
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8 |
PDIP-8 |
MC3x161P |
P SUFFIX |
AWL |
CASE 626 |
YYWWG |
1 |
1 |
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8 |
SOIC-8 |
3x161 |
D SUFFIX |
ALYW |
CASE 751 |
G |
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1 |
1 |
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8 |
Micro8t |
x161 |
DM SUFFIX |
AYW G |
CASE 846A |
G |
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1
1
x= 3 or 4
A = Assembly Location WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb-Free Package (Note: Microdot may be in either location)
PIN CONNECTIONS
Vref |
1 |
8 |
VCC |
Input 1 |
2 |
7 |
Mode Select |
Input 2 |
3 |
6 |
Output 1 |
GND |
4 |
5 |
Output 2 |
(TOP VIEW)
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 15 of this data sheet.
4 |
This device contains |
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141 transistors. |
Figure 1. Simplified Block Diagram
(Positive Voltage Window Detector Application)
♥ Semiconductor Components Industries, LLC, 2007 |
1 |
Publication Order Number: |
July, 2007 - Rev. 10 |
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MC34161/D |
MC34161, MC33161, NCV33161
MAXIMUM RATINGS (Note 1)
Rating |
Symbol |
Value |
Unit |
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Power Supply Input Voltage |
VCC |
40 |
V |
Comparator Input Voltage Range |
Vin |
- 1.0 to +40 |
V |
Comparator Output Sink Current (Pins 5 and 6) (Note 2) |
ISink |
20 |
mA |
Comparator Output Voltage |
Vout |
40 |
V |
Power Dissipation and Thermal Characteristics (Note 2) |
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P Suffix, Plastic Package, Case 626 |
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Maximum Power Dissipation @ TA = 70°C |
PD |
800 |
mW |
Thermal Resistance, Junction-to-Air |
RqJA |
100 |
°C/W |
D Suffix, Plastic Package, Case 751 |
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Maximum Power Dissipation @ TA = 70°C |
PD |
450 |
mW |
Thermal Resistance, Junction-to-Air |
RqJA |
178 |
°C/W |
DM Suffix, Plastic Package, Case 846A |
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°C/W |
Thermal Resistance, Junction-to-Ambient |
RqJA |
240 |
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Operating Junction Temperature |
TJ |
+150 |
°C |
Operating Ambient Temperature (Note 3) |
TA |
0 to +70 |
°C |
MC34161 |
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MC33161 |
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- 40 to +105 |
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NCV33161 |
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-40 to +125 |
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Storage Temperature Range |
Tstg |
- 55 to +150 |
°C |
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
1.This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL-STD-883, Method 3015.
Machine Model Method 200 V.
2.Maximum package power dissipation must be observed.
3. Tlow = 0°C for MC34161 |
Thigh = +70°C for MC34161 |
-40°C for MC33161 |
+105°C for MC33161 |
-40°C for NCV33161 |
+125°C for NCV33161 |
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2
MC34161, MC33161, NCV33161
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 4 and 5], unless otherwise noted.)
Characteristics |
Symbol |
Min |
Typ |
Max |
Unit |
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COMPARATOR INPUTS |
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Threshold Voltage, Vin Increasing |
(TA = 25°C) |
Vth |
1.245 |
1.27 |
1.295 |
V |
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(TA = Tmin to Tmax) |
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1.235 |
- |
1.295 |
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Threshold Voltage Variation (VCC = 2.0 V to 40 V) |
DVth |
- |
7.0 |
15 |
mV |
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Threshold Hysteresis, Vin Decreasing |
VH |
15 |
25 |
35 |
mV |
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Threshold Difference |Vth1 - Vth2| |
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VD |
- |
1.0 |
15 |
mV |
Reference to Threshold Difference (Vref - Vin1), (Vref - Vin2) |
VRTD |
1.20 |
1.27 |
1.32 |
V |
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Input Bias Current (Vin = 1.0 V) |
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IIB |
- |
40 |
200 |
nA |
(Vin = 1.5 V) |
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- |
85 |
400 |
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MODE SELECT INPUT |
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Mode Select Threshold Voltage (Figure 6) Channel 1 |
Vth(CH 1) |
Vref+0.15 |
Vref+0.23 |
Vref+0.30 |
V |
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Channel 2 |
Vth(CH 2) |
0.3 |
0.63 |
0.9 |
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COMPARATOR OUTPUTS |
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Output Sink Saturation Voltage (ISink = 2.0 mA) |
VOL |
- |
0.05 |
0.3 |
V |
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(ISink = 10 mA) |
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- |
0.22 |
0.6 |
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(ISink = 0.25 mA, VCC = 1.0 V) |
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- |
0.02 |
0.2 |
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Off-State Leakage Current (VOH = 40 V) |
IOH |
- |
0 |
1.0 |
mA |
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REFERENCE OUTPUT |
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Output Voltage (IO = 0 mA, TA = 25°C) |
Vref |
2.48 |
2.54 |
2.60 |
V |
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Load Regulation (IO = 0 mA to 2.0 mA) |
Regload |
- |
0.6 |
15 |
mV |
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Line Regulation (VCC = 4.0 V to 40 V) |
Regline |
- |
5.0 |
15 |
mV |
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Total Output Variation over Line, Load, and Temperature |
DVref |
2.45 |
- |
2.60 |
V |
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Short Circuit Current |
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ISC |
- |
8.5 |
30 |
mA |
TOTAL DEVICE |
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Power Supply Current (VMode, Vin1, Vin2 =GND) (VCC = 5.0 V) |
ICC |
- |
450 |
700 |
mA |
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(VCC = 40 V) |
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- |
560 |
900 |
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Operating Voltage Range (Positive Sensing) |
VCC |
2.0 |
- |
40 |
V |
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(Negative Sensing) |
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4.0 |
- |
40 |
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4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. |
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5. Tlow = 0°C for MC34161 |
Thigh = +70°C for MC34161 |
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-40°C for MC33161 |
+105°C for MC33161 |
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-40°C for NCV33161 |
+125°C for NCV33161 |
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MC34161, MC33161, NCV33161 |
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6.0 |
VCC = 5.0 V |
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500 |
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(V)VOLTAGEOUTPUT, |
5.0 |
RL = 10 k to VCC |
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TA = 85°C |
(nA)CURRENTBIASINPUT, |
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VCC = 5.0 V |
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TA = 25°C |
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400 |
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VMode = GND |
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4.0 |
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TA = 25°C |
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300 |
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3.0 |
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2.0 |
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200 |
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T |
= 85°C |
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out |
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A |
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1.0 |
TA = 25°C |
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T |
= 25°C |
IB |
100 |
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V |
T = -40°C |
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A |
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° |
I |
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A |
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T |
= -40 C |
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A |
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0 |
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0 0 |
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1.22 |
1.23 |
1.24 |
1.25 |
1.26 |
1.27 |
1.28 |
1.29 |
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1.0 |
2.0 |
3.0 |
4.0 |
5.0 |
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Vin, INPUT VOLTAGE (V) |
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Vin, INPUT VOLTAGE (V) |
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Figure 2. Comparator Input Threshold Voltage |
Figure 3. Comparator Input Bias Current |
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versus Input Voltage |
t PHL, OUTPUT PROPAGATION DELAY TIME (ns)
3600
3000
2400
1800
1200
600
0
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8.0 |
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VCC = 5.0 V |
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1. VMode = GND, Output Falling |
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Undervoltage Detector |
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TA = 25°C |
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2. VMode = VCC, Output Rising |
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(V) |
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Programmed to trip at 4.5 V |
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3. V |
= V |
, Output Falling |
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VOLTAGE |
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R1 = 1.8 k, R2 = 4.7 k |
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Mode |
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CC |
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6.0 |
RL = 10 k to VCC |
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4. V |
= GND, Output Rising |
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Mode |
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Refer to Figure 17 |
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OUTPUT, |
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4.0 |
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1 |
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2 |
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out |
2.0 |
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TA = -40°C |
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3 |
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V |
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TA = -25°C |
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4 |
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0 |
TA = -85°C |
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2.0 |
4.0 |
6.0 |
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8.0 |
10 |
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2.0 |
4.0 |
6.0 |
8.0 |
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0 |
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PERCENT OVERDRIVE (%) |
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VCC, SUPPLY VOLTAGE (V) |
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Figure 4. Output Propagation Delay Time |
Figure 5. Output Voltage versus Supply Voltage |
versus Percent Overdrive |
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6.0 |
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A) |
40 |
CHANNEL, OUTPUT VOLTAGE (V) |
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SELECT INPUT CURRENT (μ |
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5.0 |
Channel 2 Threshold |
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Channel 1 Threshold |
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35 |
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VCC = 5.0 V |
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30 |
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4.0 |
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25 |
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RL = 10 k to VCC |
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3.0 |
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20 |
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2.0 |
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TA = 85°C |
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15 |
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TA = 85°C |
10 |
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T |
° |
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° |
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= 25 C |
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TA = 25°C |
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A |
° |
TA = -40 C |
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out |
1.0 |
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TA = -40 C |
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MODE, |
5.0 |
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V |
0 |
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Mode |
0 |
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0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
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0 |
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VMode, MODE SELECT INPUT VOLTAGE (V) |
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VCC = 5.0 V |
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TA = 25°C |
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0 |
1.0 |
2.0 |
3.0 |
4.0 |
5.0 |
VMode, MODE SELECT INPUT VOLTAGE (V)
Figure 6. Mode Select Thresholds |
Figure 7. Mode Select Input Current |
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versus Input Voltage |
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4
MC34161, MC33161, NCV33161
Vref, REFERENCE VOLTAGE (V)
2.8
2.4
2.0
1.6
1.2
0.8 |
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0.4 |
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VMode = GND |
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TA = 25°C |
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0 |
10 |
20 |
30 |
40 |
0 |
VCC, SUPPLY VOLTAGE (V)
Figure 8. Reference Voltage
versus Supply Voltage
Vref, REFERENCE OUTPUT VOLTAGE (V)
2.610
2.578
2.546
2.514
2.482
2.450
-55
Vref Max = 2.60 V
Vref Typ = 2.54 V
VCC = 5.0 V
VMode = GND
Vref Min = 2.48 V
-25 |
0 |
25 |
50 |
75 |
100 |
125 |
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TA, AMBIENT TEMPERATURE (°C) |
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Figure 9. Reference Voltage versus Ambient Temperature
(mV) |
0 |
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(V) |
0.5 |
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VCC = 5.0 V |
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CHANGEVOLTAGEREFERENCE, |
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T |
T |
T |
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VOLTAGESATURATIONOUTPUT, |
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-2.0 |
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VMode = GND |
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0.4 |
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TA = 85°C |
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-4.0 |
VCC = 5.0 V |
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=85°C |
=25°C |
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0.3 |
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TA = 25°C |
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-6.0 |
VMode = GND |
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A |
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C |
A |
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0.2 |
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° |
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TA = -40 C |
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-8.0 |
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-40° |
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0.1 |
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= |
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A |
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ref |
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out |
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V |
-10 |
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V |
0 |
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1.0 |
2.0 |
3.0 |
4.0 |
5.0 |
6.0 |
7.0 |
8.0 |
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4.0 |
8.0 |
12 |
16 |
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0 |
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0 |
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Iref, REFERENCE SOURCE CURRENT (mA) |
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Iout, OUTPUT SINK CURRENT (mA) |
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Figure 10. Reference Voltage Change
versus Source Current
Figure 11. Output Saturation Voltage
versus Output Sink Current
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0.8 |
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1.6 |
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VMode = VCC |
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CURRENTSUPPLY(mA) |
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CURRENTSUPPLY(mA) |
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VMode = GND |
Pins 2, 3 = |
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0.6 |
GND |
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1.2 |
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Pins 2, 3 = 1.5 V |
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VMode = Vref |
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0.4 |
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Pin 1 = 1.5 V |
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0.8 |
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Pin 2 = GND |
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INPUT, |
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I |
0.2 |
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0.4 |
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Mode |
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, |
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CC |
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ICC measured at Pin 8 |
|
CC |
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V |
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= GND |
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TA = 25°C |
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0 |
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TA = 25°C |
|
I |
0 |
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10 |
20 |
30 |
40 |
|
4.0 |
8.0 |
12 |
16 |
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0 |
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0 |
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VCC, SUPPLY VOLTAGE (V) |
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Iout, OUTPUT SINK CURRENT (mA) |
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Figure 12. Supply Current versus |
Figure 13. Supply Current |
Supply Voltage |
versus Output Sink Current |
http://onsemi.com
5
MC34161, MC33161, NCV33161
VCC
|
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|
8 |
|
Vref |
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2.54V |
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Reference |
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1 |
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||
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Mode Select |
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- |
Channel 1 |
7 |
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+ |
+ |
Output 1 |
Input 1 |
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+ |
2.8V |
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6 |
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2 |
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- |
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+ |
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1.27V |
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- |
Channel 2 |
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++
Input 2 |
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+ |
0.6V |
Output 2 |
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5 |
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3 |
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- |
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+ |
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1.27V |
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GND |
4 |
|
Figure 14. MC34161 Representative Block Diagram
Mode Select |
Input 1 |
Output 1 |
Input 2 |
Output 2 |
|
Pin 7 |
Pin 2 |
Pin 6 |
Pin 3 |
Pin 5 |
Comments |
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GND |
0 |
0 |
0 |
0 |
Channels 1 & 2: Noninverting |
|
1 |
1 |
1 |
1 |
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Vref |
0 |
0 |
0 |
1 |
Channel 1: Noninverting |
|
1 |
1 |
1 |
0 |
Channel 2: Inverting |
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VCC (>2.0 V) |
0 |
1 |
0 |
1 |
Channels 1 & 2: Inverting |
|
1 |
0 |
1 |
0 |
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Figure 15. Truth Table
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6