Datasheet4U Logo Datasheet4U.com

MAX6948B - High-Efficiency PWM LED Driver

General Description

The MAX6948B general-purpose input/output (GPIO) peripheral drives a series string of white LEDs (WLEDs), and contains up to five general-purpose input/output (GPIO) ports to drive additional LEDs.

Key Features

  • shutdown and standby modes for low-power dissipation. The constant-current drivers contain programmable PWM outputs and allow staggering to reduce the input peak-current requirements. The I/O ports also feature ramp-up and ramp-down controls. The MAX6948B features a single input to select from four I2C slave addresses. Programming and functionality for the five GPIO ports is identical to the MAX6946/MAX6947 I/O expanders. www. DataSheet4U. com Features S 28V Step-Up DC-DC Converter with Integrat.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MAX694 Microprocessor Supervisory Circuits Maxim
MAX690 Microprocessor Supervisory Maxim
MAX6900 I2C-Compatible RTC Maxim
MAX6901 I2C-Compatible RTC Maxim
MAX6902 I2C-Compatible RTC Maxim

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX6946 Constant-Current LED Drivers and I/O Expanders
MAX6947 Constant-Current LED Drivers and I/O Expanders
MAX6920 Serial-Interfaced VFD Tube Driver
MAX6921 (MAX6921 / MAX6931) Serial-Interfaced VFD Tube Drivers
MAX6922 Serial-Interfaced VFD Tube Drivers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-4935; Rev 0; 9/09 TION KIT EVALUA BLE A IL A V A High-Efficiency PWM LED Driver with Boost Converter and Five Constant-Current GPIO Ports General Description The MAX6948B general-purpose input/output (GPIO) peripheral drives a series string of white LEDs (WLEDs), and contains up to five general-purpose input/output (GPIO) ports to drive additional LEDs. The integrated 2MHz boost converter minimizes the size and cost of external components and supplies 30mA of load current at up to 28V. The converter is stable under all load conditions from 5V up to 28V and includes open-circuit detection to prevent damage to the IC. An I2C-programmable 10-bit pulse-width modulation (PWM) signal enables 1024 levels of WLED intensity.