Part number

Package

Marking

ORDER INFORMATION

PIN DESCRIPTION

PIN CONFIGURATION

2

KB3386

Kingbor Technology Co.,Ltd

TEL:(86)0755-26508846 FAX:(86)0755-26509052

400mA Buck/Boost Charge Pump LED Driver

KB3386ER

DFN-10,GREEN

86ER

PIN NUMBER

PIN NAME

DESCRIPTION

Input Voltage for the charge pump. Decouple with 2.2 F ceramic

capacitor close to the pins of the IC.

2

C1

Positive input for the external fly capacitor. Connect a ceramic 0.47 F

capacitor close to the pins of the IC.

3

C2

Negative input for the external fly capacitor. Connect a ceramic

0.47 F capacitor close to the pins of the IC.

4

FLASH

Logic input to toggle operation between FLASH and TORCH mode.

In TORCH mode FB is regulated to the internal 50mV reference. In

FLASH mode FB reference voltage can be adjusted by changing the

5

EN

to ground for shutdown.

Connect a resistor from this pin to ground. When in FLASH mode

(FLASH = High) this resistor sets the current regulation point

7

FB

Feedback input for the current control loop. Connect directly to the

current sense resistor.

Internal ground pin. Control circuitry returns current to this pin.

Power ground pin. Fly capacitor current returns through this pin.

10

Charge Pump Output Voltage. Decouple with an external capacitor.

At least 1uF is recommended. Higher capacitor values reduce output

ripple.

XXXX

86ER

yyyy

XXXX: LOT number

yyyy: Data code

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