LM3553SDX National Semiconductor, LM3553SDX Datasheet - Page 2

• Manufacturer Part Number: LM3553SDX
• Description: LM3553 1.2A Dual Flash LED Driver System with I 2 C Compatible Interface; Package: LLP; No of Pins: 12; Qty per Container: 4500; Container: Reel
• Manufacturer: National Semiconductor

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LM3553SD-NOPB
LM3553SDX-NOPB
LM3553SD-HALF
LM3553SDX-HALF
Connection Diagram
Pin Descriptions
Ordering Information
2, 11
DAP
Order Number
Pin
10
12
4
5
6
1
3
8
9
7
D1, D2
Name
OVP
GND
SDA
SCL
I
VIO
M/F
SW
F
V
TX
SET
EN
IN
No Lead, Non-
No Lead, Non-
Halogenated
Halogenated
Halogenated
Halogenated
No Lead,
No Lead,
Type
Input Voltage. Input range: 2.7V to 5.5V.
Switch Pin
Over Voltage Protection Pin
Regulated current sink inputs
Ground
Current sense input. Connect a 1% 16.5kΩ resistor to ground to set the full scale LED current.
Flash enable pin.
Serial clock pin.
Serial data I/O pin.
Digital Reference Voltage level input pin.
RF PA synchronization control pin. High = Forced Torch mode.
Hardware RESET or General purpose I/O. Function set through Multi-Function Control Register
Package
SDF12A
SDF12A
SDF12A
SDF12A
2
Package Marking
L3553
L3553
L3553
L3553
Function
1000 units, Tape-and-Reel
4500 units, Tape-and-Reel
1000 units, Tape-and-Reel
4500 units, Tape-and-Reel
Supplied As
20171416