SM8120A ic equivalent, white led driver ic.
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PINOUT
(Top view)
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Boost-up control using PFM White LED of 2-4 lights (connected in series) lighted Output current value can be set by ex.
SM8120A
BLOCK DIAGRAM
SW
VDD FB Buff Q R VREF OSC CE SOFT START S COMP
VSS
PIN DESCRIPTION
Number 1 2 3 4 5 Name V.
Number 1 2 3 4 5 Name VDD VSS SW FB CE I/O
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– O I Ip1 Power supply GND Coil switching Feed back (Output current detection) Chip enable (High active) Description
1. Input with built-in pull-down resistor
NIPPON PRECI.
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