S E M I C O N D U C T O R
ICL8211, ICL8212
Programmable Voltage Detectors
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.
April 1994
Features
• High Accuracy Voltage Sensing and Generation
• Internal Reference 1.15V Typical
• Low Sensitivity to Supply Voltage and Temperature
Variations
• Wide Supply Voltage Range Typ. 1.8V to 30V
• Essentially Constant Supply Current Over Full Supply
Voltage Range
• 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
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
TEMPERATURE
RANGE
0
o
C to +70
o
C
0
o
C to +70
o
C
0
o
C
-55
o
C
to
to
+70
o
C
+125
o
C
PACKAGE
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
0
o
C to +70
o
C
0
o
C to +70
o
C
0
o
C
-55
o
C
to
to
+70
o
C
+125
o
C
Pinouts
ICL8211 (PDIP, SOIC)
TOP VIEW
ICL8211 (CAN)
TOP VIEW
HYSTERESIS
NC
HYSTERESIS
THRESHOLD
OUTPUT
1
2
3
4
8
7
6
5
V+
NC
NC
OUTPUT
GROUND
NC
3
4
GROUND
5
NC
2
6
NC
THRESHOLD
1
8
7
V+
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright
©
Harris Corporation 1992
File Number
3184.1
7-161
HARRIS [ HARRIS CORPORATION ]
