LM3444A9 Datasheet, PDF (2/10 Pages) National Semiconductor (TI) – Edison Retrofit Evaluation Board included in this shipment converts

Pin-Out
10-Pin MSOP
30131203
Pin #
1
2
3
4
5
6
7
8
9
10
Name
NC
NC
NC
COFF
FILTER
GND
ISNS
GATE
V_CC
NC
Pin Description 10 Pin MSOP
Description
No internal connection.
No internal connection.
No internal connection.
OFF time setting pin. A user set current and capacitor connected from the output to this pin sets the constant
OFF time of the switching controller.
Filter input. A capacitor tied to this pin filters the error amplifier. Could also be used as an analog dimming
input.
Circuit ground connection.
LED current sense pin. Connect a resistor from main switching MOSFET source, ISNS to GND to set the
maximum LED current.
Power MOSFET driver pin. This output provides the gate drive for the power switching MOSFET of the buck
controller.
Input voltage pin. This pin provides the power for the internal control circuitry and gate driver.
No internal connection.
www.national.com
2