Linear Technology’s new LT8500 is a pulse width modulation (PWM) generator with 48 independent channels.
Each channel has an individually adjustable 12-bit (4096 steps) PWM register and a 6-bit (64 step) ±50% correction register. All controls are programmable via a simple TTL/CMOS 50 MHz serial data interface.
The IC can be used in a wide variety of PWM-intensive applications such as LED control, as well as industrial and robotic applications. For example, it can be used with three LT3595As, 16-channel LED drivers, to deliver 48 independently dimmed LED strings for locally dimmed LED backlighting for large LCD displays. The correction resister allows matching the light output of each LED string.
The LT8500 operates from a 3 V to 5,5 V input range, enabling it to operate from a wide range of standard power buses. For LED applications, each channel has individual 6-bit dot correction current adjustment and 12-bit grey scale PWM dimming. The 40 ns on-time of the device offers very wide dynamic contrast ratios. Both correction and grey scale dimming are accessible via a serial interface in TTL/CMOS logic.
The chip offers two diagnostic information flags: synchronisation error and open LED. The flags are sent with additional state information, on the serial data interface during status read back. The 50 MHz cascadable serial data interface includes buffering and skew balancing, easing the design for PWM-intensive applications such as large screen LCD dynamic backlighting. The combination of minimal externals and a 5 x 9 mm QFN package provide a highly compact solution footprint for multichannel PWM applications.
Ultra-low power MEMS accelerometer Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.
Read more...Converting high voltages without a transformer Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
Read more...BT Audio 4 Click board Dizzy Enterprises
Analogue, Mixed Signal, LSI
The BT Audio 4 Click board from MIKROE provides high-quality wireless audio streaming and data comms over Bluetooth.
Read more...Precision MEMS IMU modules Altron Arrow
Analogue, Mixed Signal, LSI
The ADIS16575/ADIS16576/ADIS16577 from Analog Devices are precision, MEMS IMUs that includes a triaxial gyroscope and a triaxial accelerometer.
Read more...Altron Arrow introduces GX10 supercomputer Altron Arrow
AI & ML
Powered by the NVIDIA GB10 Grace Blackwell superchip, this is desktop-scale AI performance previously only available to enterprise data centres.
Read more...MEMS with embedded AI processing Altron Arrow
Analogue, Mixed Signal, LSI
STMicroelectronics has announced an inertial measurement unit that combines sensors tuned for activity tracking and high-g impact measurement into a single, space-saving package.
Read more...Multicore CPUs with on-chip accelerators Altron Arrow
DSP, Micros & Memory
NXP’s MCX N94x and N54x MCUs offer advanced features for consumer and industrial applications, including connectivity, security, and power management.
Read more...RF agile transceiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.
Read more...High-performance IMU RS South Africa
Analogue, Mixed Signal, LSI
TDK Corporation has announced availability of the new InvenSense SmartMotion ICM-536xx family of high-performance 6-axis IMUs.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version