LM3554TME/NOPB National Semiconductor, LM3554TME/NOPB Datasheet - Page 13

• Manufacturer Part Number: LM3554TME/NOPB
• Description: IC LED DVR PHOTO FLASH 16-USMD
• Manufacturer: National Semiconductor
• Type: Photo Flash LED (I²C Interface)r

Specifications of LM3554TME/NOPB

• Constant Current: Yes
• Topology: High Side, Step-Up (Boost)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Type - Secondary: White LED
• Frequency: 2MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 16-MicroSMD
• Operating Temperature: -30°C ~ 85°C
• Current - Output / Channel: 600mA
• Internal Switch(s): Yes
• Efficiency: 90%
• Led Driver Application: LED Backlighting, Portable Electronics
• No. Of Outputs: 2
• Output Current: 1.2A
• Input Voltage: 2.7V To 5.5V
• Dimming Control Type: I2C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM3554TMETR

Channel 1: V
Channel 4: I
Channel 2: I
Time Base: (40µs/div)
Channel 1: V
Channel 4: I
Channel 2: I
Channel 3: HWEN (5V/div)
Time Base: (20µs/div)
OUT
L
LED
L
OUT
OUT
(500mA/div)
(1A/div)
(500mA/div)
(200mA/div)
(500mV/div, AC Coupled)
(2V/div)
(Voltage Output Mode, V
Flash Pulse to HWEN Low
Single LED, I
Load Transient
V
IN
= 3.6V
LED
= 1.2A
OUT
= 5V)
30042068
30042066
13
Channel 3 (Top Trace): V
Channel 1: V
Channel 2: I
Time Base: (200µs/div)
Channel 1: V
Channel 4: I
Channel 2: I
Channel 3: ENVM (5V/div)
Time Base: (100µs/div)
L
LED
L
OUT
OUT
Flash Pulse to Flash Pulse + V
+ I
(1A/div)
(500mA/div)
IN
(100mV/div, AC Coupled)
(2V/div)
Single LED, I
(Voltage Output Mode, V
(500mA/div)
IN
(1V/div)
Line Transient
I
OUT
LED
= 500mA
= 1.2A, V
OUT
OUT
OUT
= 5V)
= 5V
Mode
30042067
30042072
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