LM3508TLEV National Semiconductor, LM3508TLEV Datasheet - Page 3

• Manufacturer Part Number: LM3508TLEV
• Description: BOARD EVALUATION FOR LM3508TL
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3508TLEV

• Current - Output / Channel: 20mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 17V
• Features: Dimmable
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LM3508
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I
V
V
V
R
I
I
I
V
f
D
V
V
V
I
D
CL
LSW
OUT_SHUTDOWN
SW
DIM
SET
ILED
HR
OVP
SC
EN_TH
DIM_TH
DSON
MAX
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Specifications in standard type face are for T
of T
V
V
V
V
Continuous Power Dissipation
(Note )
Junction Temperature
Lead Temperature
(Note 4)
Storage Temperature Range
ESD Rating(Note 9)
Human Body Model
IN
OUT
SW
ILED
A
= −30°C to +85°C. Unless otherwise specified V
, V
Symbol
SET
, V
DIM
, V
EN
LED Current
Regulation
Voltage at SET Pin
Voltage at ILED Pin
Current Sink
Headroom Voltage
NMOS Switch On
Resistance
PMOS Switch On
Resistance
NMOS Switch
Current Limit
SW Leakage Current V
Outout Pull-Down
Resistance in
Shutdown
Output Over-Voltage
Protection
Switching Frequency 3.0V < V
Maximum Duty Cycle
Output Voltage
Threshold for Short
Circuit Detection
EN Threshold
Voltage
DIM Threshold
Voltage
DIM Bias Current
(Note 8)
Parameter
Internally Limited
-65°C to +150°C
A
−0.3V to 22V
−0.3V to 22V
= 25°C and those in boldface type apply over the Operating Temperature Range
R
R
3.0V < V
Where I
nominal, R
I
V
Floating, V
V
ON Threshold (V
OFF Threshold (V
falling)
V
V
On Threshold
Off Threshold
On Threshold
Off Threshold
V
−0.3V to 6V
−0.3V to 6V
(Notes 1, 2)
SW
OUT
SW
EN
OUT
OUT
DIM
SET
SET
= 100mA
+150°C
+300°C
= 0V
= V
= 1.8V
= 10Ω
= 6.67Ω
= 10V, I
Falling
Rising
IN
Conditions
LED
2kV
IN
=3.6V.(Note 7)
IN
IN
= 5.5V, OUT
SET
EN
< 5.5V
< 5.5V
= 95% of
SW
= PGND
= 20Ω
3
= 65mA
OUT
OUT
Operating Conditions
Thermal Properties
ESD Caution Notice
National Semiconductor recommends that all integrated cir-
cuits be handled with appropriate ESD precautions. Failure to
observe proper ESD handling techniques can result in dam-
age to the device.
rising)
Input Voltage Range
Ambient Temperature Range
(Note 5)
Junction Temperature Range
Junction to Ambient Thermal
Resistance (θ
17.5
Min
190
370
715
1.1
1.1
JA
)(Note 6)
0.93×V
0.95×V
0.01
19.8
18.6
Typ
200
500
400
500
630
850
0.5
2.2
4.7
20
30
91
IN
IN
(Notes 1, 2)
1150
Max
21.8
210
620
0.5
0.5
−30°C to +105°C
−30°C to +85°C
2.7V to 5.5V
www.national.com
64.7°C/W
Units
kHz
mA
mV
mV
mV
mA
µA
µA
Ω
Ω
%
V
V
V
V