LM3552SD/NOPB National Semiconductor, LM3552SD/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM3552SD/NOPB
• Description: IC LED DRIVER PHOTO FLASH 14-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Photo Flash LEDr

Specifications of LM3552SD/NOPB

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Type - Secondary: White LED
• Frequency: 900kHz ~ 1.6MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 10.6 V ~ 12.4 V
• Mounting Type: Surface Mount
• Package / Case: 14-LLP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 93%
• For Use With: LM3552SDEV - BOARD EVALUATION LM3552SD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM3552SD; LM3552SDNOPB; LM3552SDNOPBTR; LM3552SDNOPBTR; LM3552SDTR

I
I
I
V
I
g
A
D
f
I
I
I
I
R
I
R
I
R
Th
Q
SD
CL
FB
sw
SDPIN
ENPIN
T/FPIN
L-SW
L-T
L-F
m
FB
V
MAX
DSON-SW
DSON-T
DSON-F
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Caution Notice
ESD precautions. Failure to observe proper ESD handling techniques can result in damage to the device.
Electrical Characteristics
Limits in standard typeface are for T
(-40°C
1) with: V
Symbol
SD/EN
V
SW pin: Voltage to GND
FB pin: Voltage to GND
V
SD,T/F pins: Voltage to GND
FET-T, FET-F: Voltage to GND
Continuous Power Dissipation
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temperature
(Soldering)
ESD
Human Body Model
(Note
(Note
IN
C
pin: Voltage to GND
pin: Voltage to GND
Rating(Note
11) Switch Current Limit
13) Feedback Pin Bias Current
≤
T
IN
J
= 3.6V, V(SD) = 0V for LM3551 and V(EN) = V
Quiescent Current
Shutdown Current
Feedback Voltage
Error Amp Transconductance ΔI = 5µA
Error Amp Voltage Gain
Maximum Duty Cycle
Switching Frequency
Shutdown Pin Current
(LM3551)
Enable Pin Current
(LM3552)
T/F Pin Current
SW Pin Leakage Current
SW Pin R
FET-T Leakage Current
FET-T R
FET-F Leakage Current
FET-F R
Shutdown/Enable Pin
Threshold
≤
+110°C). Unless otherwise noted, specifications apply to the LM3551 and LM3552 Typical Application Circuit (pg.
5)
DSON
DSON
Parameter
DSON
J-MAX )
(Note
National Semiconductor recommends that all integrated circuits be handled with appropriate
J
= +25° C. Limits in boldface type apply over the full operating junction temperature range
3) Internally Limited
FB = V
V(SD) = V
LM3551
V(EN) = 0V
LM3552
V
(Note
IN
-65°C to +150
1.26V ± 0.3V
= 3.0V
(Note
2,
IN
(Note
(Not Switching)
Note
V
Output High
Conditions
Output Low
IN
150°C
V
1,
I
2.0kV
(Note
V
V
SW
V
L-SW
EN
7.5V
7.5V
T/F
21V
SD
T/F
Note
7V
6V
= 0.5A
4)
= 3.6V
9)
= V
= 0V
= 0V
IN
= 20V
12)
for LM3552, I
IN
3
Operating Ratings
Thermal Properties
Input Voltage Range
SW Voltage Max.
Junction Temperature (T
Range
Ambient Temperature (T
Range
Junction-to-Ambient Thermal
Resistance (θ
Package
LOAD
(Note
(Note
1.2285
= 0A
Min
0.9
1.2
7)
JA
(Note
8)
), SDA14B
(Note
10)
1.265
0.165
6)
A
1.47
2.55
92.5
1.25
0.07
0.98
0.36
J
Typ
135
135
0.1
2.1
3.0
3.0
0.1
0.1
)
50
26
22
)
(Note
1,
1.2915
Max
2.0
5.0
2.3
1.6
0.3
Note
6
6
8
-40°C to +110°C
-40°C to +85°C
2)
2.7V to 5.5V
www.national.com
37.3°C/W
Units
µmho
MHz
V/V
mA
µA
nA
µA
µA
nA
µA
µA
µA
%
Ω
Ω
Ω
20V
A
V
V