LED照明驱动电路

SP5518F是一颗高效率、升压型LED驱动控制芯片，采用固定关断时间控制模式，开关频率可达1MHZ，关断时间可以通过外部电容调节，LED电流可以通过外部电阻进行设置。\n\n        SP5518F提供上电软启动功能与各种可自恢复的保护功能，包括功率管过流保护(OCP)、欠压保护（UVLO）等。 上电软启动\n内置前沿消隐(LEB)功能\n逐周期限流保护（OCP）\n欠压保护（UVLO）\nLED宽电流范围：\n高达90％的效率\n1MHZ的开关频率\n宽电压输入范围：6.5V~24V\nSOP8无铅封装;

SILICON PLANAR ZENER DIODES

Features Silicon Planar Zener Diodes The Zener voltages are graded according to the international E 24 standard. Other voltage tolerances and higher Zener voltages on request.

ZENER DIODE CHIPS

• 1N5518B THRU 1N5546B AVAILABLE IN JANHC AND JANKC PER MIL-PRF-19500/437 • ZENER DIODE CHIPS • ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE • ELECTRICALLY EQUIVALENT TO 1N5518B THRU 1N5546B • 0.5 WATT CAPABILITY WITH PROPER HEAT SINKING • COMPATIBLE WITH ALL WIRE BONDING

ZENER DIODE, 500mW

• 1N5518BUR-1 THRU 1N5546BUR-1 AVAILABLE IN JAN, JANTX AND JANTXV PER MIL-PRF-19500/437 • ZENER DIODE, 500mW • LEADLESS PACKAGE FOR SURFACE MOUNT • LOW REVERSE LEAKAGE CHARACTERISTICS • METALLURGICALLY BONDED

ZENER DIODE, 500mW

• 1N5518BUR-1 THRU 1N5546BUR-1 AVAILABLE IN JAN, JANTX AND JANTXV PER MIL-PRF-19500/437 • ZENER DIODE, 500mW • LEADLESS PACKAGE FOR SURFACE MOUNT • LOW REVERSE LEAKAGE CHARACTERISTICS • METALLURGICALLY BONDED

1.3 GHz bidirectional I2C-bus controlled synthesizer

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