LM3553SD/NOPB National Semiconductor, LM3553SD/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM3553SD/NOPB
• Description: IC LED DRIVER PHOTO FLASH 12-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Photo Flash LED (I²C Interface)r

Specifications of LM3553SD/NOPB

• Topology: Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Frequency: 1MHz ~ 1.35MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 12-LLP
• Operating Temperature: -30°C ~ 85°C
• Current - Output / Channel: 1.2A
• Internal Switch(s): Yes
• Efficiency: 90%
• Operating Supply Voltage (typ): 3.3/5V
• Number Of Segments: 2
• Operating Temperature (min): -30C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Package Type: LLP EP
• Pin Count: 12
• Mounting: Surface Mount
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 5.5V
• For Use With: LM3553SDEV - BOARD EVALUATION FOR LM3553S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Compliant
• Other names: LM3553SD; LM3553SD; LM3553SDTR

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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