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AS1111 数据表(PDF) 1 Page - ams AG |
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AS1111 数据表(HTML) 1 Page - ams AG |
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1 / 22 page  ams Datasheet Page 1 [v1-06] 2015-Apr-07 Document Feedback AS1111 Low–Dropout LED Drivers The AS1111A/AS1111B/AS1111C are LED drivers designed to match current source bias for any color LED, including white and blue. The devices can drive up to 4 high-current LEDs, and the LED current is programmable using an external resistor (RSET). The AS1111A LED currents are 460 x ISET (per LED, typ) at an LED cathode voltage (VSAT) of 150mV and 650 x ISET (typ) at a VSAT of 1V, where ISET is the current through RSET connected to pin CTRL. The AS1111B & AS1111C LED currents are 230 x ISET (per LED, typ) at a VSAT of 150mV and 325 x ISET (typ) at a VSAT of 1V. All AS1111 versions incorporate a chip-enable feature via pin EN. When the devices are disabled, the supply current drops down to less than 1 μA. The AS1111A and AS1111B are available in a 6-pin WL-CSP package with 0.4mm pitch. The AS1111C is available in an 8-pin MLPD (2x2mm) package with 0.5mm pitch. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS1111, Low–Dropout LED Drivers are listed below: Figure 1: Added Value of Using AS1111 Benefits Features High efficient • Ultra Low Voltage Drop: less than 150mV Supports a variety of end applications • Analog and PWM Brightness Control • Up to 80mA per LED (AS1111A) • Up to 40mA per LED (AS1111B, AS1111C) Extended battery life • Active-Low Shutdown Mode • Low Shutdown Current: less than 1 μA Suitable for EMF sensitive environment • No electromagnetic interference • No switching noise Small PCB area • Less external components needed Cost effective, small package • 6-pin WL-CSP with 0.4mm pitch • 8-pin MLPD (2x2mm) with 0.5mm pitch General Description |
类似零件编号 - AS1111 |
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类似说明 - AS1111 |
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