The FAN5608 LED driver generates regulated output currents from a battery with input voltage varying between 2.7V to 5V. An internal NMOS switch drives an external inductor, and a Schottky diode delivers the inductor’s stored energy to the load. Proprietary internal circuitry continuously monitors the currrent on both strings and automatically adjusts the ge.
• Two Independent Channels Drive up to Six LEDs per Channel
• Adaptive Output Voltage Drive to Maximize Efficiency
• PWM/PFM Mode of Operation of the Boost Circuit
• Up to 85% Efficiency
• Up to 2 × 20mA Output
• Two Built-in DACs for Independent (Digital) Brightness Control for Both Channels
• LED’s Current Can be Duty-Cycle-Modulated between 0 to 20mA
• Digital, Analog, and PWM Brightness Control
• 2.7V to 5V Input Voltage Range
• 0.5MHz Operating Frequency (8MHz internal clock)
• Soft Start
• Low Shutdown Current: ICC < 1µA
• LED Short Circuit Protection
• Minimal External Components Needed
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No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | FAN5601 |
Fairchild Semiconductor |
Regulated Step-Down Charge Pump DC/DC Converter | |
2 | FAN5602 |
Fairchild Semiconductor |
Universal (Step-Up/Step-Down) Charge Pump Regulated DC/DC Converter | |
3 | FAN5606 |
Fairchild Semiconductor |
Serial LED Driver | |
4 | FAN5607 |
Fairchild Semiconductor |
LED Driver | |
5 | FAN5609 |
Fairchild Semiconductor |
LED Driver with Adaptive Charge Pump DC/DC Converter | |
6 | FAN5610 |
Fairchild Semiconductor |
LED Driver | |
7 | FAN5611 |
Fairchild Semiconductor |
Low-Dropout LED Drivers | |
8 | FAN5612 |
Fairchild Semiconductor |
Low-Dropout LED Drivers | |
9 | FAN5613 |
Fairchild Semiconductor |
Low-Dropout LED Drivers | |
10 | FAN5614 |
Fairchild Semiconductor |
Low-Dropout LED Drivers | |
11 | FAN5616 |
Fairchild Semiconductor |
Constant-Current LED Driver | |
12 | FAN5617 |
Fairchild Semiconductor |
High-Efficiency Constant-Current LED Driver |