The SP7615 is a four-channel constant current LED driver designed by Sipex Corp. It can be used to drive multiple LEDs in series from a high input voltage rail. It is a high current matched, four-channel current source ensuring constant LED current for a range of input voltages.
The SP7615 is a four‑channel constant‑current LED driver designed to drive multiple LEDs in series from a high input voltage rail. It provides matched current across all channels and allows current adjustment up to 125 mA per string via an external resistor. PWM dimming is supported through the EN pin for flicker‑free brightness control.
Key features include a wide cathode voltage range (0.3 V‑16 V), thermal shutdown at 150 °C, TTL‑compatible enable input, and a compact 8‑pin DFN package available in lead‑free form. Typical applications are mobile phones, PDAs, handheld computers, LCD displays, and keyboard backlighting.
| Number of channels | Four |
|---|---|
| Maximum LED current per channel | 126 mA (typical) |
| Supply voltage range | 4.5 V – 16 V |
| Enable ON voltage (minimum) | 1.6 V |
| Thermal shutdown threshold | 150 °C |
| Package type | 8‑pin DFN (2 × 3 mm) |
Each channel can deliver up to 126 mA of LED current (typical).
Brightness is controlled via the EN pin, which accepts a PWM signal or a current source to adjust LED current.
The driver shuts down when its internal temperature reaches 150 °C.