Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LM3500 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM3500
Description  Synchronous Step-up DC/DC Converter for White LED
PDF  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3500 Datasheet(HTML) 4 Page - National Semiconductor (TI)

  LM3500 Datasheet HTML 1Page - National Semiconductor (TI) LM3500 Datasheet HTML 2Page - National Semiconductor (TI) LM3500 Datasheet HTML 3Page - National Semiconductor (TI) LM3500 Datasheet HTML 4Page - National Semiconductor (TI) LM3500 Datasheet HTML 5Page - National Semiconductor (TI) LM3500 Datasheet HTML 6Page - National Semiconductor (TI) LM3500 Datasheet HTML 7Page - National Semiconductor (TI) LM3500 Datasheet HTML 8Page - National Semiconductor (TI) LM3500 Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 18 page
background image
Electrical Characteristics (Continued)
Specifications in standard type face are for T
A = 25˚C and those in boldface type apply over the Operating Temperature
Range of T
A = −10˚C to +85˚C. Unless otherwise specified VIN =2.7V and specification apply to both LM3500-16 and LM3500-
21.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 8)
Max
(Note 7)
Units
I
L
Switch Leakage Current
(LM3500-16)
V
SW = 15V
0.01
0.5
µA
Switch Leakage Current
(LM3500-21)
V
SW = 20V
0.01
2.0
UVP
Input Undervoltage Lockout
ON Threshold
2.4
2.5
2.6
V
OFF Threshold
2.3
2.4
2.5
OVP
Output Overvoltage
Protection (LM3500-16)
ON Threshold
15
15.5
16
V
OFF Threshold
14
14.6
15
Output Overvoltage
Protection (LM3500-21)
ON Threshold
20
20.5
21
OFF Threshold
19
19.5
20
I
Vout
V
OUT Bias Current
(LM3500-16)
V
OUT = 15V, SHDN = VIN
260
400
µA
V
OUT Bias Current
(LM3500-21)
V
OUT = 20V, SHDN = VIN
300
460
I
VL
PMOS Switch Leakage
Current (LM3500-16)
V
OUT = 15V, VSW =0V
0.01
3
µA
PMOS Switch Leakage
Current (LM3500-21)
V
OUT = 20V, VSW =0V
0.01
3
SHDN
Threshold
SHDN Low
0.65
0.3
V
SHDN High
1.1
0.65
Specifications in standard type face are for T
J = 25˚C and those in boldface type apply over the full Operating Temperature
Range (T
J = −40˚C to +125˚C). Unless otherwise specified VIN =2.7V and specification apply to both LM3500-16 and LM3500-
21.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 8)
Max
(Note 7)
Units
I
Q
Quiescent Current, Device
Not Switching
FB > 0.54V
0.95
1.2
mA
Quiescent Current, Device
Switching
FB = 0V
1.8
2.5
Shutdown
SHDN = 0V
0.1
2
µA
V
FB
Feedback Voltage
V
IN = 2.7V to 7V
0.47
0.5
0.53
V
∆V
FB
Feedback Voltage Line
Regulation
V
IN = 2.7V to 7V
0.1
0.4
%/V
I
CL
Switch Current Limit
(LM3500-16)
V
IN = 3.0V, Duty Cycle =
70%
400
mA
Switch Current Limit
(LM3500-21)
V
IN = 3.0V, Duty Cycle =
63%
670
I
B
FB Pin Bias Current
FB = 0.5V (Note 9)
45
200
nA
V
IN
Input Voltage Range
2.7
7.0
V
R
DSON
NMOS Switch R
DSON
V
IN = 2.7V, ISW = 300mA
0.43
Ω
PMOS Switch R
DSON
V
OUT = 6V, ISW = 300mA
1.1
2.3
D
Limit
Duty Cycle Limit
(LM3500-16)
FB=0V
87
%
Duty Cycle Limit
(LM3500-21)
FB=0V
94
F
SW
Switching Frequency
0.8
1.0
1.2
MHz
www.national.com
4



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com