Datasheet4U Logo Datasheet4U.com

AIC1841 - High Efficiency 1.5X charge Pump

General Description

The AIC1841 and AIC1842 provide 4 and 6 LED current source outputs with regulated constant current for uniform intensity.

The AIC1841/2 is the low noise, constant frequency charge pump DC/DC converter that uses 1.5X conversion to increase efficiency in white LED applications.

Key Features

  • 1MHz Switching Frequency 2.7V to 5.5V Input Voltage Range Low Shutdown Current: ≦1µA Regulated 20mA Full-Scale Output Current 32-Position Linear Scale with Digital Control High Accuracy Brightness Matching 33% Less Input Current Than Doubler Charge Pump No Inductors Required Build-in Soft-Start Current Limit and Over Temperature Protection 12-Pin (AIC1841) and 16-Pin (AIC1842) QFN Package.

📥 Download Datasheet

Datasheet Details

Part number AIC1841
Manufacturer Analog Intergrations Corporation
File Size 631.71 KB
Description High Efficiency 1.5X charge Pump
Datasheet download datasheet AIC1841 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AIC1845 Regulated 5V Charge Pump In SOT-23 Analog Integrations
AIC1848 Regulated 5V Charge Pump In SOT-23 Analog Integrations
AIC1084 5A Low Dropout Positive Adjustable Regulator Analog Integrations
AIC111 IC Design Specification 1.3-V microPower(TM) DSP/uC Voice Band Audio CODEC (Rev. A) ETCTI
AIC1221 Ultra LDO 2A Linear Regulator aic

Other Datasheets by Analog Intergrations Corporation

Part Number Description
AIC1841 REGULATED GaAsFET BIAS
AIC1840 REGULATED GaAsFET BIAS
AIC1842 High Efficiency 1.5X charge Pump
AIC1802 Two-Cell Lithium-Ion Battery Protection IC
AIC1803 Three-Cell Lithium-Ion Battery Protection IC

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
AIC1841/2 High Efficiency 1.5X charge Pump For White LEDs Backlighting FEATURES 1MHz Switching Frequency 2.7V to 5.5V Input Voltage Range Low Shutdown Current: ≦1µA Regulated 20mA Full-Scale Output Current 32-Position Linear Scale with Digital Control High Accuracy Brightness Matching 33% Less Input Current Than Doubler Charge Pump No Inductors Required Build-in Soft-Start Current Limit and Over Temperature Protection 12-Pin (AIC1841) and 16-Pin (AIC1842) QFN Package APPLICATIONS Cellular Phones PDAs Digital Still Cameras Handheld Devices White LED Backlighting GENERAL DESCRIPTION The AIC1841 and AIC1842 provide 4 and 6 LED current source outputs with regulated constant current for uniform intensity.