DATASHEET and Circuit Diagram

The herein schematic appears Ohm’s Law in Series Circuits to predict the behavior of electricity in a circuit for example in automotive circuit troubleshooting. Ohm’s law defines that the current (I) through a conductor between two points is directly proportional to the potential difference or voltage (E) across the two points, and inversely proportional to the resistance (R) between them (wikipedia.org).

Ohm’s Law in Series Circuits for Automotive Troubleshooting continued »

Since the ICL7135 is designed to work from less more 5V supplies, if you need to generate a negative supply you may use the ICL7660 CMOS Voltage Converters for that IC. This ICL7660 can also be connected to function as voltage doublers and will generate output voltages up to +18.6V with a +10V input.

For generating a negative supply, it can be performed with an ICL7660 and two 10 uF capacitors as shown in the schematic diagram. This IC can also be used in applications such as On Board Negative Supply for Dynamic RAMs, Inexpensive Negative Supplies, Localized Micro Processor (8080 Type) Negative Supplies, and Data Acquisition Systems, according to the datasheet.

Generating Negative Supply using the ICL7660 Circuit Schematic and Datasheet continued »

A circuit diagram for driving a plasma-type display using ICL7135 is shown in the following schematic. This application is one of the wide versatility variety of this integrating Analog to Digital Converter device. The integrating converter characteristics have made it the natural choice for panel meters and digital voltmeter applications.

The schematic outlines the high voltage anode driver buffer, the 3 AND gates for interdigit blanking of multiple-digit display elements, and 2.5kOhms and 3kOhms resistors that set the current levels in the display.

Plasma Display Circuit Diagram using ICL7135 A/D Converter continued »

The schematic below diagrams Universal Remote IC8001 Pin Configuration. The IC8001 Universal Remote Integrated  Circuit is a fully integrated solution for a complete six-in-one "learning" universal remote control. It can be used to control up to six different entertainment devices such as TV, VCR, Satellite, and cable box.

The pinout schematic outlines infra red LED output, Visible LED, Power On Reset, Wakes IC8001, EEPROM Input/Output, 12 MHz Crystal Connection, Keypad Row Connections, Ground, Keypad Column Connections, Connect to +5 Volts, and +5 Volts Power Supply.

IC8001 Universal Remote IC Pin Configuration Schematic and Datasheet continued »

The schematic herein shows a minimum component solution to the USB battery charger using LTC4053 IC to achieve a fully compliant USB charger. This IC is a standalone linear charger for lithium ion (li-ion) batteries that can be powered directly from a USB port, according to the datasheet.

The operation of the USB Li-ion charger circuit using the LTC4053 is simple, accordingly. The resistor on the PROG pin sets the charge curent, capacitor on the timer pin sets the termination timer period, and float voltage is preset at 4.2V. For fully compliant USB charger, it needs only five components including the LTC4053.

USB Battery Charger Components and Circuit using LTC4053 continued »

The diagram below appears TPIC46L01/02 and TPIC2601 circuit schematic that are well-suited for fuel injector control applications. This circuit provides protection and fault diagnostics in automotive module for monitoring emission levels and better system reliability.

The pin 2 of TPIC46L01/02 is the voltage compare enable (Vcompen), the pin is pulled high to select the external reference voltage compare (VCOMP) at pin 3 and so does external voltage for setting the fault threshold reference to a different value.

TPIC46L01 Circuit Schematic for Fuel Injector Control Applications continued »