TM
ICL8211, ICL8212
Programmable Voltage Detectors
Description
The Intersil 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.
October 1999
NO
T
ODUC
T
TE PR
EM E N
B SO L E ED R EPL A C
O
EN D
C O MM
RE
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
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 C to +70 C
0
o
C to +70
o
C
0
o
C to +70
o
C
-55
o
C to +125
o
C
0
o
C to +70
o
C
0
o
C to +70
o
C
0
o
C to +70
o
C
-55
o
C to +125
o
C
o
o
Ordering Information
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
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; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
7-161
FN3184.2
ICL8211, ICL8212
Functional Diagram
VOLTAGE REFERENCE
COMPARATOR
OUTPUT BUFFERS
8
V+
Q3
Q2
Q4
Q16
Q17
Q18
R5
4.5kΩ
2
R4
1MΩ
Q5
Q1
Q6
Q14 Q15
XXXX
Q19
HYST
1.15V
V
REF
Q12
Q13
3
THRESHOLD
Q7
R1
20MΩ
Q23
R3
360kΩ
4
OUTPUT
Q8
Q9
Q10
Q11
Q20
R6
100kΩ
Q21
R2
30kΩ
5
GROUND
ICL8211 OPTION
XXXXXX
ICL8212 OPTION
7-162
Specifications ICL8211, ICL8212
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +30V
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +30V
Hysteresis Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5V to -10V
Threshold Input Voltage . . . . . . . . . . . . . +30V to -5V with respect to
GROUND and +0V to -30V with respect to V+
Current into Any Terminal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±
30mA
Thermal Information
Thermal Resistance
θ
JA
θ
JC
Plastic DIP Package . . . . . . . . . . . . . . . . 150
o
C/W
-
o
Plastic SOIC Package . . . . . . . . . . . . . . . 180 C/W
-
Metal Can . . . . . . . . . . . . . . . . . . . . . . . . 156
o
C/W
68
o
C/W
Lead Temperature (Soldering, 10s). . . . . . . . . . . . . . . . . . . . . 300
o
C
(SOIC - Lead Tips Only)
Current into Any Terminal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±
30mA
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Operating Conditions
Operating Temperature Range
ICL8211M/8212M . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
ICL8211C/8212C . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to +70
o
C
Storage Temperature Range . . . . . . . . . . . . . . . . . . -65
o
C to +150
o
C
Electrical Specifications
V+ = 5V, T
A
= +25
o
C Unless Otherwise Specified
ICL8211
PARAMETER
Supply Current
SYMBOL
I+
TEST CONDITIONS
2.0 < V+ < 30
V
TH
= 1.3V
V
TH
= 0.9V
Threshold Trip Voltage
V
TH
I
OUT
= 4mA
V
OUT
= 2V
V+ = 5V
V+ = 2V
V+ = 30V
Threshold Voltage
Disparity Between
Output & Hysteresis
Output
Guaranteed Operating
Supply Voltage Range
Minimum Operating
Supply Voltage Range
V
THP
I
OUT
= 4mA
I
HYST
= 7mA
V
OUT
= 2V
V
HYST
= 3V
+25
o
C (Note 3)
0
o
C to +70
o
C (Note 3)
V
SUPPLY
+25
o
C
+125
o
C
-55
o
C
Threshold Voltage Tem-
perature Coefficient
Variation of Threshold
Voltage with Supply
Voltage
Threshold Input Current
∆V
TH
/∆T
∆V
TH
/∆V+
I
OUT
= 4mA, V
OUT
= 2V
∆V+
= 10% at V+ = 5V
MIN
10
50
0.98
0.98
1.00
-
TYP
22
140
1.15
1.145
1.165
-0.8
MAX
40
250
1.19
1.19
1.20
-
MIN
50
10
1.00
1.00
1.05
-
ICL8212
TYP
110
20
1.15
1.145
1.165
-0.5
MAX
250
40
1.19
1.19
1.20
-
UNITS
µA
µA
V
V
V
mV
V
SUPPLY
2.0
2.2
-
-
-
-
-
-
-
1.8
1.4
1.5
±
200
1.0
30
30
-
-
-
-
-
2.0
2.2
-
-
-
-
-
-
-
1.8
1.4
2.5
±
200
1.0
30
30
-
-
-
-
-
V
V
V
V
V
ppm/
o
C
mV
I
TH
V
TH
= 1.15V
V
TH
= 1.00V
-
-
V
TH
= 0.9V
V
TH
= 1.3V
-
-
-
-
-
-
4
-
-
100
5
-
-
-
-
0.17
-
7.0
-
-
250
-
-
10
-
1
0.4
-
12
-
0.1
-
-
-
-
-
-
-
-
-
15
-
100
5
-
-
-
-
-
0.17
-
35
-
250
-
10
-
1
-
-
0.4
-
-
0.1
nA
nA
µA
µA
µA
µA
V
V
mA
mA
µA
Output Leakage Current
I
OLK
V
OUT
= 30V
V
OUT
= 5V
V
TH
= 0.9V
V
TH
= 1.3V
Output Saturation
Voltage
Max Available Output
Current
Hysteresis Leakage
Current
V
SAT
I
OUT
= 4mA
V
TH
= 0.9V
V
TH
= 1.3V
I
OH
(Notes 3 & 4)
V
OUT
= 5V
V+ = 10V,
V
HYST
= GND
V
TH
= 0.9V
V
TH
= 1.3V
V
TH
= 1.0V
I
LHYS
7-163
ICL8211, ICL8212
Electrical Specifications
V+ = 5V, T
A
= +25
o
C Unless Otherwise Specified
(Continued)
ICL8211
PARAMETER
Hysteresis Sat Voltage
SYMBOL
V
HYS(MAX)
TEST CONDITIONS
I
HYST
= -7µA,
measured with
respect to V+
V
TH
= 1.3V
MIN
-
TYP
-0.1
MAX
-0.2
MIN
-
ICL8212
TYP
-0.1
MAX
-0.2
UNITS
V
Max Available
Hysteresis Current
I
HYS (MAX)
V
TH
= 1.3V
-15
-21
-
-15
-21
-
µA
Electrical Specifications
ICL8211MTY/8212MTY
V+ = 5V, T
A
= -55
o
C to +125
o
C
ICL8211
ICL8212
MAX
-
100
350
1.30
1.30
30
400
-
20
0.5
-
15
-
0.2
0.3
MIN
-
-
-
0.80
0.80
2.8
-
-
-
-
-
-
9
-
-
TYP
-
350
100
-
-
-
-
-
-
-
-
-
-
-
-
MAX
-
350
100
1.30
1.30
30
400
20
-
-
0.5
-
-
0.2
0.3
UNITS
-
µA
µA
V
V
V
nA
µA
µA
V
V
mA
mA
µA
V
PARAMETER
Supply Current
SYMBOL
I+
TEST CONDITIONS
2.8 < V+ < 30
V
T
= 1.3V
V
T
= 0.8V
MIN
-
-
-
TYP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Threshold Trip Voltage
V
TH
I
OUT
= 2mA
V
OUT
= 2V
(Note 5)
V
TH
= 1.15V
V
OUT
= 30V
V+ = 2.8V
V+ = 30V
0.80
0.80
2.8
-
Guaranteed Operating
Supply Voltage Range
Threshold Input Current
Output Leakage Current
V
SUPPLY
I
TH
I
OLK
V
TH
= 0.8V
V
TH
= 1.3V
-
-
-
-
3
-
-
-
Output Saturation
Voltage
Max Available Output
Current
Hysteresis Leakage
Current
Hysteresis Saturation
Voltage
Max Available
Hysteresis Current
NOTES:
V
SAT
I
OUT
= 3mA
V
TH
= 0.8V
V
TH
= 1.3V
I
OH
(Notes 3 & 4)
V
OUT
= 5V
V+ = 10V
V
HYST
= GND
I
HYST
= -7µA
measured with
respect to V+
V
TH
= 0.8
V
TH
= 1.3V
V
TH
= 0.8V
V
TH
= 1.3V
I
LHYS
V
HYS(MAX)
I
HYS (MAX)
V
TH
= 1.3V
10
-
-
10
-
-
µA
1. The maximum output current of the ICL8211 is limited by design to 15mA under any operating conditions. The output voltage may be
sustained at any voltage up to +30V as long as the maximum power dissipation of the device is not exceeded.
2. The maximum output current of the ICL8212 is not defined. And systems using the ICL8212 must therefore ensure that the output current
does not exceed 30mA and that the maximum power dissipation of the device is not exceeded.
3. Threshold Trip Voltage is 0.80V(min) to 1.30V(mas). At I
OUT
= 3mA.
7-164
ICL8211, ICL8212
Typical Performance Curves
10,000
HYSTERESIS OUTPUT CURRENT (µA)
THRESHOLD INPUT CURRENT (nA)
T
A
= +25
o
C
V+ = +10V
(ICL8211 and ICL8212)
0
V+ = +5V
V
TH
= 1.2V
-5 V
HYS
= 4.5V
(OR -0.5V WITH RESPECT
TO V+ SUPPLY)
-10
1,000
ICL8211 OR ICL8212
-20
100
-25
ICL8211 OR ICL8212
-30
10
0.0
1.1 1.15 1.2
2.0
3.0
6.0
8.0 10.0
-40
-20
0
+20
+40
+60
+80
THRESHOLD VOLTAGE (V
TH
)
(IRREGULAR SCALE)
TEMPERATURE (
o
C)
FIGURE 1. THRESHOLD INPUT CURRENT AS A FUNCTION OF
THRESHOLD VOLTAGE
FIGURE 2. HYSTERESIS OUTPUT SATURATION CURRENT AS
A FUNCTION OF TEMPERATURE
Typical Performance Curves
150
(ICL8211 ONLY)
150
V
TH
= 0.9V
SUPPLY CURRENT (µA)
125
100
75
50
25
T
A
= +25
o
C
V+ = +5V
OUTPUTS OPEN
CIRCUIT
125
SUPPLY CURRENT (µA)
100
T
A
= +25
o
C
OUTPUTS OPEN CIRCUIT
75
50
25
V
TH
= 1.3V
0
10
20
30
0
0.0
SUPPLY VOLTAGE
1.0
1.1
1.15
1.2
2.0
THRESHOLD VOLTAGE (V
TH
)
(IRREGULAR SCALE)
4.0
FIGURE 3. SUPPLY CURRENT AS A FUNCTION OF SUPPLY
VOLTAGE
FIGURE 4. SUPPLY CURRENT AS A FUNCTION OF THRESH-
OLD VOLTAGE
7-165
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