ADM8843ACPZ-REEL7 Inductorless (Charge Pump) LED Drivers by Analog Devices

Status: Production
Series: ADM8843
RoHS: Compliant
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The ADM8843 uses charge pump technology to provide thepower to drive up to four LEDs. The LEDs are used for backlightinga color LCD display that has regulated constant currentfor uniform brightness intensity. The main display can use up tothree LEDs, and the sub display uses one LED. The CTRL1 andCTRL2 digital input control pins control the shutdown operationand the brightness of the main and sub displays.To maximize power efficiency, the charge pump can operate in1×, 1.5×, or 2× mode. The charge pump automatically switchesamong 1×/1.5×/2× modes, based on the input voltage, tomaintain sufficient drive for the LED anodes at the highestpower efficiency.Improved brightness matching of the LEDs is achieved by afeedback pin that senses individual LED current with a typicalmatching accuracy of 0.3%.

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Prices starting from US$0.67

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Features

Drives 4 LEDs from a 2.6 V to 5.5 V (Li-Ion) input supply
1×/1.5×/2× fractional charge pump to maximize power efficiency
0.3% typical LED current matching
Up to 88% power efficiency over Li-Ion range
Powers main and sub display LEDs with individual shutdown
Package footprint only 9 mm2 (3 mm × 3 mm)
Package height only 0.75 mm
Low power shutdown mode
Shutdown function
Soft start limiting in-rush current

Alternative Descriptions

4 WHT LED BK LGT DRVR | Analog Devices


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADM8843ACPZ-REEL7?

Additional datasheets, footprints and schematics for ADM8843ACPZ-REEL7 are listed on our Part Details page. You can also find images and similar parts to ADM8843ACPZ-REEL7 on this page.

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What category does ADM8843ACPZ-REEL7 fall under?

The ADM8843ACPZ-REEL7 is listed under Inductorless (Charge Pump) LED Drivers.

Can I view similar or alternative parts?

You can view similar parts to ADM8843ACPZ-REEL7 when available in the Inductorless (Charge Pump) LED Drivers range under the specifications section at the bottom of the details page.

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Is the ADM8843ACPZ-REEL7 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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