Voltage monitoring ICs for LED indicators and simple remaining battery power displays

ABLIC has launched the S-82F9 Series for driving five LED indicators and the S-82D9 Series for driving four LED indicators, both of which are designed for voltage monitoring ICs to provide simple remaining battery power displays.

These products enable the monitoring of multiple voltages on a single IC, contributing to space savings. Additionally, they can perform voltage monitoring of batteries with low power consumption, as they can be operated without a microcontroller.

Traditionally, when using LEDs as a residual power display in power tools and other applications, functions are employed that combine components discretely or equip them with an MCU, among other methods. However, these solutions have disadvantages, including that when components are combined discretely, it increases the number of components, requiring more space on the board, and if an MCU is used, it increases the amount of current consumption.

The series can address these disadvantages of current battery remaining indications by utilising the functionalities of voltage monitoring ICs.

The features of these new products include the ability to select products to suit applications with the addition of driving four and five indicators ICs to the company's existing S-8229 for driving three indicators products, which contributes to lower power consumption and space-saving in applications by not requiring an MCU; lower power consumption when the LEDs are off in the A Series which is equipped with an EN pin, and the capability to monitor the high voltage in the B Series which is fitted with a SENSE pin, and the ability to select either 'full charge all on' which increases the number of lit LEDs based on the battery voltage, or 'individual step voltage on', which changes which LEDs are lit based on battery voltage.

Application examples include lithium-ion rechargeable battery packs, Lithium polymer rechargeable battery packs, and more.