The LT8393 provides both internal (up to 128:1) and external (up to 2000:1) LED current PWM dimming with 10V of high side PMOS gate drive. The CTRL pin provides flexible 20:1 analog dimming with ±3% LED current accuracy at 100mV full scale. Fault protection is provided to detect an open or short LED condition, during which the LT8393 retries, latches off, or keeps running.
The Analog Devices Inc. LT8393 Synchronous 4-Switch Buck-Boost LED Controller is available in TSSOP28 and UFDM28 packages. The UFDM28 package features side-wettable flanks, enabling Automated Optical Inspection (AOI).