The FAN5611/FAN5612/FAN5613/FAN5614 are low-dropout LED drivers from Fairchild Semiconductor Corporation. These drivers support up to 4 parallel LEDs and have undervoltage protection, overcurrent protection and thermal shutdown. Additionally, the drivers support both analog and PWM dimming.
The FAN5611‑FAN5614 family are low‑dropout LED drivers designed to drive two to four parallel LEDs with ultra‑low voltage drop (< 300 mV). They support both analog and PWM brightness control, require no external components for current matching, and provide enable/shutdown control.
Typical applications include cell phones, handheld computers, LCD backlights, keyboards, and LED displays. The document provides pin assignments, electrical characteristics, mechanical dimensions, ordering information, and recommended operating conditions for each device in the series.
| Voltage Drop | <300 mV |
|---|---|
| Maximum Bias Current (FAN5611/13) | 160 mA |
| Maximum Bias Current (FAN5612) | 120 mA |
| Maximum Bias Current (FAN5614) | 160 mA |
| Shutdown Current | < 1 A |
| Ambient Temperature Range | -40 °C to 85 °C |
| Power Dissipation (SC‑70) | 190 mW |
The FAN5611 can provide up to 160 mA bias current (40 mA per LED).
The FAN5613 is offered in a 2 × 2 mm 8‑lead MLP package.
When ENABLE is low, the driver’s shutdown current is less than 1 A.
The drivers have an ultra‑low voltage drop of less than 300 mV.