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LM3502SQ-44 Datasheet(PDF) 11 Page - Texas Instruments

Part # LM3502SQ-44
Description  Step-Up Converter for White LED Applications
Download  28 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3502SQ-44 Datasheet(HTML) 11 Page - Texas Instruments

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INPUT VOLTAGE (V)
2.5
3.0
3.5
4.0
4.5
5.0
5.5
320
340
360
380
420
440
460
480
400
T = -40
oC
T = 25
oC
T = 85
oC
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
-40
oC
INMOS = 20 mA
125
oC
25
oC
2.0
12.0
22.0
32.0
42.0
3
4
5
6
7
8
9
10
VOUT1 PIN VOLTAGE (V)
125
oC
IPMOS = 20 mA
25
oC
-40
oC
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
300
400
500
600
700
800
900
1000
125
oC
INMOS = 400 mA
25
oC
-40
oC
8
16
24
32
40
48
VOUT1 PIN VOLTAGE (V)
0
20
40
60
80
100
120
140
160
0
125
oC
25
oC
-40
oC
LM3502
www.ti.com
SNVS339A – SEPTEMBER 2005 – REVISED AUGUST 2006
Typical Performance Characteristics (continued)
( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3. Efficiency:
η = POUT/PIN = [(VOUT – VFb) * IOUT]/[VIN * IIN]. TA=
25°C, unless otherwise stated.)
VOUT1 Pin Current
Power NMOS RDS(ON) (Figure 4: N1)
vs
vs
VOUT1 Pin Voltage
VIN
Figure 19.
Figure 20.
NMOS RDS(ON) (Figure 4: N2)
PMOS RDS(ON) (Figure 4: P1)
vs
vs
VIN
VIN
Figure 21.
Figure 22.
Feedback Voltage
Current Limit (LM3502-16)
vs
vs
Temperature
VIN
Figure 23.
Figure 24.
Copyright © 2005–2006, Texas Instruments Incorporated
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Product Folder Links: LM3502


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