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LM3503SQX-16NOPB Datasheet(PDF) 9 Page - Texas Instruments

Part # LM3503SQX-16NOPB
Description  Dual-Display Constant Current LED Driver with Analog Brightness Control
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3503SQX-16NOPB Datasheet(HTML) 9 Page - Texas Instruments

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background image
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
EN2 PIN VOLTAGE (V)
0
2
4
6
8
10
12
14
16
18
0.0
2.0
4.0
1.0
3.0
5.0
-40
oC
125
oC
25
oC
EN1 PIN VOLTAGE (V)
10
15
20
25
30
0.0
1.0
2.0
3.0
4.0
5.0
0
5
125
oC
-40
oC
25
oC
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
TEMPERATURE (
oC)
94
98
-40
95
96
97
VIN = 2.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
CNTRL PIN VOLTAGE (V)
0
2
4
6
8
10
12
14
-40
oC
125
oC
25
oC
LM3503
www.ti.com
SNVS329D – JULY 2005 – REVISED AUGUST 2006
Typical Performance Characteristics (continued)
(See Typical Application Circuit :e L=DO1608C-223 and D=B150-13. Efficiency:
η = POUT/ PIN = [(VOUT – VFb ) * IOUT] / [VIN *
IIN]. TA = +25°C, unless otherwise stated.)
Cntrl Pin Current
Maximum Duty Cycle
vs
vs
Cntrl Pin Voltage
Temperature
Figure 13.
Figure 14.
En1 Pin Current
En2 Pin Current
vs
vs
En1 Pin Voltage
En2 Pin Voltage
Figure 15.
Figure 16.
VOUT1 Pin Current
Power NMOS RDS(ON) (Figure 3: N1)
vs
vs
VOUT1Pin Voltage
VIN
Figure 17.
Figure 18.
Copyright © 2005–2006, Texas Instruments Incorporated
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Product Folder Links: LM3503


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