The MAX1583 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board for evaluating the MAX1583 white LED flash boost converter. The EV kit accepts a 2.6V to 5.5V input voltage and drives up to five series white LEDs with a constant current to pro- vide camera flash/strobe in cell phones, PDAs, DSCs, and other hand-held devices. The MAX1583 switching frequency is 1MHz, allowing tiny external components. Two logic inputs control four modes of operation: shut- down mode (0.5µA max), movie mode for high-efficien- cy continuous lighting (programmable up to 100mA), precharge mode for charging a reservoir capacitor to 24V while the LEDs are off (POK output indicates a full reservoir capacitor), and strobe mode for firing the flash during an exposure with a regulated current program- mable up to 300mA (100mA with installed compo- nents). A pushbutton pulse generator is installed to sim- ulate a 30ms flash pulse. The MAX1583 comes with the MAX1583X (1A current limit) installed, but the entire MAX1583 family can be eval- uated with this EV kit with minor component changes.
The MAX1583 evaluation kit is a fully assembled, surface‑mount board designed to evaluate the MAX1583 white LED flash boost converter. It accepts a 2.6 V to 5.5 V input and can drive up to five series white LEDs for camera flash, strobe, or continuous lighting applications.
The kit includes four operational modes (shutdown, movie, pre‑charge, and strobe), a push‑button pulse generator, and a complete component list. The manual details jumper settings, LED current adjustments, and procedures for testing both on‑board and off‑board LEDs.
| Input voltage range | 2.6 V to 5.5 V |
|---|---|
| Maximum LED count | 5 series white LEDs |
| Strobe mode current | up to 300 mA (preset 100 mA) |
| Movie mode current | up to 100 mA (preset 20 mA) |
| Switching frequency | 1 MHz |
| Package type | 10‑lead 3 mm × 3 mm TDFN |
| Operating temperature range | -40 °C to +70 °C |
The kit operates with an input voltage from 2.6 V up to 5.5 V.
The kit can drive up to five series white LEDs in strobe mode.
Strobe mode can provide up to 300 mA of current (preset to 100 mA).
Movie‑mode LED current is preset to 20 mA and can be changed by adjusting resistor R2.