供应PAM2863驱动IC PAM授权代理，现货库存

The PAM2863 is a continuous mode inductive
step-down converter, designed for driving single
or multiple series connected LEDs efficiently from
a voltage source higher than the LED voltage. The
device operates from an input supply between
4.5V and 40V and provides an externally
adjustable output current of up to 2A. Depending
upon supply voltage and external components,
this can provide up to 30 watts of output power.
The PAM2863 includes the output switch and a
high-side output current sensing circuit, which
uses an external resistor to set the nominal
average output current.
Output current can be adjusted below the set
value, by applying an external control ** to the
VSET pin.
The VSET pin will accept either a DC voltage or a
PWM waveform.
The soft-start time can be increased using an
external capacitor from the VSET pin to ground.
Applying a voltage of 0.2V or lower to the VSET
pin turns the output off and switches the device
into a low current standby state.
Simple low parts count
Internal 40V NDMOS switch
2A output current
Single pin on/off and brightness control
Using DC voltage or PWM
Soft-start
High efficiency (up to 97%)
Wide input voltage range: 4.5V to 40V
Output shutdown
Open LED Protection
Short LED Protection
Up to 1MHz switching frequency
Typical 5% output current accuracy
Pb-free SOP-8(EP) Packages

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