ICL7660CPAZ Super Voltage Converter: Equivalents, Pinout, and Datasheet

The ICL7660CPAZ Super Voltage Converter is a monolithic CMOS voltage converter IC that offers considerable performance benefits over competing devices. They are direct replacements for the industry-standard ICL7660, having a 12V operational supply voltage range and lower supply current. A Frequency Boost pin has been added to allow users to obtain reduced output impedance even with smaller capacitors. Over the full commercial and industrial temperature ranges, critical parameters are ensured.

The ICL7660CPAZ converts positive to negative supply voltages for an input range of 1.5V to 12V, yielding complementary output voltages of -1.5V to -12V. For the charge pump and charge reservoir functions, just two non-critical external capacitors are required.

With a 12V input, the ICL7660CPAZ can be attached to act as a voltage doubler, generating up to 22.8V. They can also be utilized as voltage dividers or multipliers.

A series DC power supply regulator, RC oscillator, voltage level translator, and four output power MOS switches are all found on each device. When unloaded, the oscillator oscillates at a nominal frequency of 10kHz for a 5.0 V input supply voltage,  An additional capacitor can be added to the "OSC" terminal to lower the frequency, or the oscillator can be overdriven by an external clock.

To bypass the internal series regulator and improve low voltage (LV) operation, connect the "LV" terminal to GND. The  LV  pin is left floating at medium to high voltages (3.5V to 12V) to prevent device latchup.

An external Schottky diode from VOUT to CAP- is required in some situations to ensure latchup-free functioning.

The ICL7660CPAZ Pinout is shown as follows.

Pinout

The followings are ICL7660CPAZ Symbol, Footprint and 3D Model.

Symbol

Footprint

3D Model

• Guaranteed Lower Max Supply Current for All Temperature Ranges

• Wide Operating Voltage Range: 1.5V to 12V

• 100% Tested at 3V

• Boost Pin (Pin 1) for Higher Switching Frequency

• Guaranteed Minimum Power Efficiency of 96%

• Improved Minimum Open Circuit Voltage Conversion Efficiency of 99%

• Improved SCR Latchup Protection

• Simple Conversion of +5V Logic Supply to ±5V Supplies

• Simple Voltage Multiplication VOUT = (-)nVIN

• Easy to Use; Requires Only Two External Non-Critical Passive Components

• Improved Direct Replacement for Industry Standard ICL7660 and Other Second Source Devices

• Pb-Free Available ( RoHS Compliant )

Intersil (Renesas Electronics America) ICL7660CPAZ technical specifications, attributes, parameters and parts with similar specifications to Intersil (Renesas Electronics America) ICL7660CPAZ.

The following shows ICL7660CPAZ Functional Block Diagram.

Functional Block Diagram

The ICL7660 is a monolithic CMOS charge pump IC that achieves voltage inversion with negligible losses from (+1.5 to +10V) to (-1.5V to -10V). The manufacturers offer the IC in an 8-pin PDIP and  SOIC  packaging. As previously noted, this IC can be used to invert voltage. The datasheet and application note contain the basic circuit as well as various application circuits. For voltage inverting application circuits, the IC simply requires two external capacitors. The values of the capacitors are predefined in the datasheet. The two capacitors are linked in the circuit according to their polarity. The output capacitor C2's positive and negative pins, in particular, must be connected to ground and the ICL7660's pin 5. The basic voltage inverting circuit is given below.

The Basic Voltage Inverting Circuit

Using the built-in oscillator, the IC operates at a frequency of 10kHz. The IC's OSC pin (pin7) can be used to synchronize it to an external clock. To prevent device latch up and internal damage, the IC incorporates an internal voltage regulator (pin6). This pin must be connected to ground for low voltage operation to work properly.

The following figure is ICL7660CPAZ Test Circuit.

Test Circuit

MAX1044, TC7660, LTC1044, LTC1046

• Simple Conversion of +5V to ±5V Supplies

• Voltage Multiplication VOUT = ±nVIN

• Negative Supplies for Data Acquisition Systems and Instrumentation

• RS232 Power Supplies

• Supply Splitter, VOUT = ±VS

• Personal Communications Equipment

• Op-Amp Power Supplies

• Memory Power Supplies

• Handheld Meters

The following figure is ICL7660CPAZ Package.

Package

Renesas and Intersil will merge on January 1, 2018, resulting in a considerable increase in semiconductor inherent capabilities. Intersil's market-leading expertise in high-performance power management and precision analog devices is combined with Renesas' globally regarded MCU and SoC technologies. As a result, organic expansion in the automotive, industrial, and broad-based industries occurs, allowing the new company to respond more quickly to clients' system requirements. The merger of Renesas and Intersil began on February 24, 2017, with the completion of the acquisition, and the unified "One Global Renesas" went into operation across all markets the following July, bringing together the strengths of both companies in anticipation of customer needs in a rapidly changing market environment. This genuinely worldwide company has a tremendous amount of synergy. Join Renesas as it improves its position as the world's premier semiconductor manufacturer.

Download datasheets and manufacturer documentation for Intersil (Renesas Electronics America) ICL7660CPAZ.