The U6083B is a PWM power control IC from Texas Instruments. The IC uses bipolar technology and is intended for the control of an N-channel power MOSFET used as a high-side switch. The IC is ideal for use in brightness control systems (dimming) of lamps, for example, in dashboard applications.
The document describes the ANMEL U6083B, a Pulse-Width Modulation (PWM) integrated circuit in bipolar technology. It is specifically designed to control an N-channel power MOSFET used as a high-side switch, making it ideal for brightness control systems of lamps, such as those found in dashboard applications.
The IC features protection against short-circuits, load dump overvoltage, and reverse voltage. Key specifications include a duty cycle range from 18% to 100%, internally reduced pulse slope to minimize interference, and charge-pump noise suppression. The datasheet details the pin configuration, functional descriptions of various pins including supply voltage, control input, oscillator, and output, as well as ordering information for the DIP8 package.
| Technology | bipolar technology |
|---|---|
| Duty Cycle Range | 18% to 100% |
| Clock Frequency | up to 2 kHz |
| Package Type | DIP8 |
The pulse-width modulation supports clock frequencies up to 2 kHz.
The duty cycle can be varied continuously from 18% to 100%.
An external potentiometer with a value of 47 kΩ is used to control the pulse width.
The short-circuit detection circuit activates when the lamp current exceeds a threshold of 90 mV.