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FAN5640: Dual High-side Constant Current Source LED Driver
The FAN5640 is designed to illuminate one or two strings of keypad LEDs with constant high-side current sources. The device can drive up to four white LEDs in series at a maximum current of 25mA per channel. If the second channel is not needed, the channels can be tied together to boost output current up to 50mA. An external resistor programs the maximum output current. Dimming can be accomplished by pulse width modulation of the enable pin or the input supply rail.
| FAN5640 Datasheet |
Features
- 20V Maximum Driver Input Level
- Dual Output
- 25mA Drive Capability per Channel
- Two Strings of 2-4 LEDs Each
- External Resistor Sets Maximum Current
- Fast Turn-On/Off Capability
- Low Bias Current
- SC70-6 Package
- Thermal Shutdown Protection
| Product | Product & Eco Status | Unit Price/1K Order | Packing Method Convention | Package Marking Convention* |
|---|---|---|---|---|
| FAN5640S7X | Full Production Green as of Sep 2010 China RoHS | $0.7474 | SC70 6L
-
1.1 x 1.25 x 2mm,
TAPE REEL
| Line 1&E (Space) &Y (Binary Calendar Year Coding)
Line 2&O (Plant Code) |
- SC70 6L Drawing Last Update: Aug 2015
- SC70-6L T&R PACKING DRAWING Last Update: May 2013
- SOT Tape and Reel Packing Drawing Last Update: Oct 2016
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