ICL7660, ICL7660A
Electrical Specifications
ICL7660 and ICL7660A, V+ = 5V, T
A
= 25°C, C
OSC
= 0, Test Circuit Figure 11
Unless Otherwise Specified
(Continued)
ICL7660
PARAMETER
Voltage Conversion Efficiency
SYMBOL
TEST CONDITIONS
MIN
-
-
-
-
TYP
-
-
-
-
MAX
-
-
-
-
V
OUT
EFF V+ = 3V, R
L
=
∞
T
MIN
< T
A
< T
MAX
Power Efficiency
P
EFF
V+ = 3V, R
L
= 5kΩ
T
MIN
< T
A
< T
MAX
NOTES:
2. Connecting any input terminal to voltages greater than V+ or less than GND may cause destructive latchup. It is recommended that no inputs
from sources operating from external supplies be applied prior to “power up” of the ICL7660, ICL7660A.
3. Derate linearly above 50°C by 5.5mW/°C.
4. In the test circuit, there is no external capacitor applied to pin 7. However, when the device is plugged into a test socket, there is usually a very
small but finite stray capacitance present, of the order of 5pF.
5. The Intersil ICL7660A can operate without an external diode over the full temperature and voltage range. This device will function in existing
designs which incorporate an external diode with no degradation in overall circuit performance.
ICL7660A
MIN
99
99
96
95
TYP
-
-
-
-
MAX UNITS
-
-
-
-
%
%
%
%
Functional Block Diagram
V+
CAP+
RC
OSCILLATOR
÷
2
VOLTAGE
LEVEL
TRANSLATOR
CAP-
V
OUT
OSC
LV
VOLTAGE
REGULATOR
LOGIC
NETWORK
Typical Performance Curves
10
(Test Circuit of Figure 11)
10K
OUTPUT SOURCE RESISTANCE (Ω)
T
A
= 25
°C
8
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE RANGE
(NO DIODE REQUIRED)
1000
6
4
100
2
0
-55
-25
0
25
50
100
125
10
0
1
2
3
4
5
6
7
8
TEMPERATURE (
°C
)
SUPPLY VOLTAGE (V+)
FIGURE 1. OPERATING VOLTAGE AS A FUNCTION OF
TEMPERATURE
FIGURE 2. OUTPUT SOURCE RESISTANCE AS A FUNCTION
OF SUPPLY VOLTAGE
4
FN3072.7
October 10, 2005
INTERSIL [ INTERSIL CORPORATION ]
