ICL8212CPA Harris Corporation, ICL8212CPA Datasheet

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ICL8212CPA

Manufacturer Part Number
ICL8212CPA
Description
Programmable voltage detectors for low voltage sensor/indicator, etc. high output current capability
Manufacturer
Harris Corporation
Datasheet

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Part Number:
ICL8212CPA
Manufacturer:
INTERSIL
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Part Number:
ICL8212CPA
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ICL8212CPA
Manufacturer:
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Quantity:
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April 1994
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright
Features
• High Accuracy Voltage Sensing and Generation
• Internal Reference 1.15V Typical
• Low Sensitivity to Supply Voltage and Temperature
• Wide Supply Voltage Range Typ. 1.8V to 30V
• Essentially Constant Supply Current Over Full Supply
• Easy to Set Hysteresis Voltage Range
• Defined Output Current Limit ICL8211
• High Output Current Capability ICL8212
Applications
• Low Voltage Sensor/Indicator
• High Voltage Sensor/Indicator
• Nonvolatile Out-of-Voltage Range Sensor/Indicator
• Programmable Voltage Reference or Zener Diode
• Series or Shunt Power Supply Regulator
• Fixed Value Constant Current Source
Pinouts
Variations
Voltage Range
©
Harris Corporation 1992
S E M I C O N D U C T O R
HYSTERESIS
THRESHOLD
OUTPUT
NC
ICL8211 (PDIP, SOIC)
1
2
3
4
TOP VIEW
8
7
6
5
V+
NC
NC
GROUND
ICL8211, ICL8212
7-161
Description
The Harris ICL8211/8212 are micropower bipolar monolithic
integrated circuits intended primarily for precise voltage
detection and generation. These circuits consist of an
accurate voltage reference, a comparator and a pair of
output buffer/drivers.
Specifically, the ICL8211 provides a 7mA current limited out-
put sink when the voltage applied to the ‘THRESHOLD’
terminal is less than 1.15V (the internal reference). The
ICL8212 requires a voltage in excess of 1.15V to switch its
output on (no current limit). Both devices have a low current
output (HYSTERESIS) which is switched on for input
voltages in excess of 1.15V. The HYSTERESIS output may
be used to provide positive and noise free output switching
using a simple feedback network.
Ordering Information
NOTE:
1. Add /883B to part number if 883B processing is required
PART NUMBER
ICL8211CPA
ICL8211CBA
ICL8211CTY
ICL8211MTY
(Note 1)
ICL8212CPA
ICL8212CBA
ICL8212CTY
ICL8212MTY
(Note 1)
Programmable Voltage Detectors
THRESHOLD
OUTPUT
NC
TEMPERATURE
-55
-55
2
0
0
0
0
0
0
o
o
o
o
o
o
ICL8211 (CAN)
o
o
C to +70
C to +70
C to +70
C to +70
C to +70
C to +70
1
3
RANGE
C to +125
C to +125
HYSTERESIS
TOP VIEW
GROUND
8
4
o
o
o
o
o
o
C
C
C
C
C
C
o
o
C
C
5
7
8 Lead Plastic DIP
8 Lead SOlC (N)
8 Pin Metal Can
8 Pin Metal Can
8 Lead Plastic DIP
8 Lead SOlC (N)
8 Pin Metal Can
8 Pin Metal Can
File Number
6
V+
NC
NC
PACKAGE
3184.1

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ICL8212CPA Summary of contents

Page 1

... The HYSTERESIS output may be used to provide positive and noise free output switching using a simple feedback network. Ordering Information PART NUMBER ICL8211CPA ICL8211CBA ICL8211CTY ICL8211MTY (Note 1) ICL8212CPA ICL8212CBA ICL8212CTY ICL8212MTY (Note 1) NOTE: 1. Add /883B to part number if 883B processing is required 8 V+ THRESHOLD ...

Page 2

Functional Diagram VOLTAGE REFERENCE 1.15V REF Q7 Q23 R3 360k R1 20M Q8 Q9 Q10 R2 30k ICL8211 OPTION ICL8212 OPTION ICL8211, ICL8212 COMPARATOR OUTPUT BUFFERS Q18 ...

Page 3

Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +30V Output Voltage ...

Page 4

Electrical Specifications V+ = 5V, T PARAMETER SYMBOL Hysteresis Sat Voltage V I HYS(MAX) HYST measured with respect to V+ Max Available I HYS (MAX) Hysteresis Current Electrical Specifications ICL8211MTY/8212MTY PARAMETER SYMBOL Supply Current I+ 2.8 < V+ < 30 ...

Page 5

Typical Performance Curves 10,000 + +10V 1,000 ICL8211 OR ICL8212 100 10 0.0 1.1 1.15 1.2 2.0 3.0 THRESHOLD VOLTAGE (V (IRREGULAR SCALE) FIGURE 1. THRESHOLD INPUT CURRENT AS A FUNCTION OF THRESHOLD ...

Page 6

Typical Performance Curves OUTPUT 1.15 1.14 HYSTERESIS OUTPUT V+ = +5V 1. 1mA HYS -55 -25 +5 +35 +65 TEMPERATURE ( FIGURE 7. THRESHOLD VOLTAGE TO TURN OUTPUTS “JUST ON” AS ...

Page 7

Typical Performance Curves 150 + OUTPUTS OPEN CIRCUIT 125 100 SUPPLY VOLTAGE FIGURE 12. SUPPLY CURRENT AS A FUNCTION OF SUPPLY ...

Page 8

Typical Performance Curves (ICL8212 ONLY) (Continued) 0.6 OUTPUT SAT. 0.5 CURRENT (V = 4.0V) O 0.4 VOLTAGE SAT. 0.3 CURRENT (I 0.2 0.1 0 -55 -25 +5 +35 +65 TEMPERATURE ( FIGURE 18. OUTPUT SATURATION VOLTAGE AND CURRENT AS A ...

Page 9

Q 19 drive resulting in a maximum available collector 21 current of the order of 30mA advisable to externally limit this current to 25mA or less. Applications The ICL8211 ...

Page 10

INPUT INPUT 3 VOLTAGE Input voltage to change to output states ( 1.15V R 1 FIGURE 24. RANGE OF INPUT VOLTAGE GREATER THAN +1.15 VOLTS ...

Page 11

Low trip voltage ( 1. TR1 R 1 High trip voltage ( ...

Page 12

Upon power up to the normal operating voltage this record must have been retained and easily interrogated. This could be important in the case of a transient power failure due to a faulty component or intermittent ...

Page 13

Since there is no internal compensation in the ICL8212 it is necessary to use a large capacitor across the output to prevent oscillation. Zener voltages from 2V to 30V may be programmed and typ- ical impedance values between 300 A ...

Page 14

SPST switches range from push button and slide types to cal- culator keyboards. A major problem with the use of switches is the mechanical bounce of the electrical contacts on closure. Contact bounce times can range from a fraction of ...

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