4

FN3072.7

October 10, 2005

Functional Block Diagram

Voltage Conversion Efficiency

--

-

99

-

-

%

--

-

99

-

-

%

Power Efficiency

--

-

96

-

-

%

--

-

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

Unless Otherwise Specified (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

ICL7660

ICL7660A

UNITS

MIN

TYP MAX

MIN

TYP MAX

RC

OSCILLATOR

VOLTAGE

LEVEL

TRANSLATOR

VOLTAGE

REGULATOR

LOGIC

NETWORK

OSC

LV

V+

CAP+

CAP-

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 (

10K

1000

100

10

01

2

3

4

5

6

7

8

SUPPLY VOLTAGE (V+)

ICL7660, ICL7660A