Datasheet

4
FN3072.7
October 10, 2005
Functional Block Diagram
Voltage Conversion Efficiency V
OUT
EFF V+ = 3V, R
L
= ∞ ---99--%
T
MIN
< T
A
< T
MAX
---99--%
Power Efficiency P
EFF
V+ = 3V, R
L
= 5kΩ ---96--%
T
MIN
< T
A
< T
MAX
---95--%
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.
Electrical Specifications ICL7660 and ICL7660A, V+ = 5V, T
A
= 25°C, C
OSC
= 0, Test Circuit Figure 11
Unless Otherwise Specified (Continued)
PARAMETER SYMBOL TEST CONDITIONS
ICL7660 ICL7660A
UNITSMIN TYP MAX MIN TYP MAX
RC
OSCILLATOR
÷2
VOLTAGE
LEVEL
TRANSLATOR
VOLTAGE
REGULATOR
LOGIC
NETWORK
OSC LV
V+
CAP+
CAP-
V
OUT
Typical Performance Curves (Test Circuit of Figure 11)
FIGURE 1. OPERATING VOLTAGE AS A FUNCTION OF
TEMPERATURE
FIGURE 2. OUTPUT SOURCE RESISTANCE AS A FUNCTION
OF SUPPLY VOLTAGE
10
SUPPLY VOLTAGE RANGE
(NO DIODE REQUIRED)
8
6
4
2
0
-55 -25 0 25 50 100 125
TEMPERATURE (
°C)
SUPPLY VOLTAGE (V)
10K
T
A
= 25°C
1000
100
10
01 23 4567 8
SUPPLY VOLTAGE (V+)
OUTPUT SOURCE RESISTANCE (Ω)
ICL7660, ICL7660A