Key Features

Ensure to reduce the maximum supply current within all temperature ranges.

Wide working voltage range: 1.5V to 12V.

100% at 3 volts

Pin 1 is used to increase the switching frequency.

Ensure a minimum power efficiency of 96%.

Improved the minimum open circuit voltage conversion efficiency by 99%.

Improve thyristor blocking protection

Simply convert a+5V logic power supply to a 5V power supply.

Simple voltage doubling VOUT=(-) nVIN.

Easy to use; Only two external non critical passive components are needed.

Improved the direct replacement of industrial standard ICL7660 and other second source devices.

Pb Free available (certified lead-free)

description

The ICL7660S and ICL766A super voltage converters are single-chip CMOS voltage conversion circuits that ensure significant performance advantages over other similar devices. They are a direct substitute for the industrial standard ICL7660, providing extended operating supply voltage of up to 12V and lower supply current. When using small capacitors, using a frequency boost pin allows users to achieve lower output impedance. All improvements are highlighted in the "Electrical Specifications" section on page 3 of the data sheet. Key parameters are guaranteed throughout the entire commercial and industrial temperature range.

When the input range of ICL7660S and ICL7660A is 1.5V to 12V, they switch from positive to negative voltage conversion, producing complementary output voltages of -1.5V to -12V. Only two non critical external capacitors are required for charge pump and charge storage functions. ICL7660S and ICL766A can be connected as voltage multipliers and generate up to 22.8V 12V input. They can also be used as voltage multipliers or dividers.

Each chip contains a series of DC power regulators, RC oscillators, voltage level converters, and four output power MOS switches. When the oscillator is unloaded, it oscillates at a rated frequency of 10kHz with an input voltage of 5.0V. This frequency can be reduced by adding an external capacitor to the "OSC" terminal, or the oscillator may be over driven by an external clock.

The "LV" terminal may be bound to GND to bypass the internal series regulator and improve low voltage (LV) operation. In medium to high voltage (3.5V to 12V), the left-hand tube is floated to the left to prevent device lockout.


In some applications, an external Schottky diode from VOUT to CAP is required to ensure its free operation (see the Do and Not sections on page 8 of the data sheet).

application

Simply convert to a supply of+5V to 5V.

Voltage doubling VOUT=nVIN.

Negative supply of data acquisition systems and instruments.

RS232 power supply

Supply separator, VOUT = v。