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LM3503SQ-35 数据表(PDF) 10 Page - Texas Instruments

部件名 LM3503SQ-35
功能描述  Dual-Display Constant Current LED Driver with Analog Brightness Control
Download  28 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM3503SQ-35 数据表(HTML) 10 Page - Texas Instruments

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background image
-25
-10
5
20
35
50
65
80
TEMPERATURE (
oC)
420
440
460
480
500
520
540
560
580
600
620
-40
VIN = 5.5V
VIN = 7.0V
VIN = 2.5V
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
320
340
360
380
400
420
440
460
480
2.5
T = -40
oC
T = 25
oC
T = 85
oC
0.3
0.5
0.7
0.9
1.1
1.3
1.5
CNTRL VOLTAGE (V)
0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
VIN = 2.7V
VIN = 5.5V
-40
80
TEMPERATURE (
oC)
-25 -10
5
20
35
50
65
320
340
360
380
400
420
440
VIN = 5.5V
VIN = 7.0V
VIN = 2.5V
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)
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
LM3503
SNVS329D – JULY 2005 – REVISED AUGUST 2006
www.ti.com
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.)
NMOS RDS(ON) (Figure 3: N2)
PMOS RDS(ON) (Figure 3: P1)
vs
vs
VIN
VIN
Figure 19.
Figure 20.
Feedback Voltage
Current Limit (LM3503-16)
vs
vs
Cntrl Pin Voltage
Temperature
Figure 21.
Figure 22.
Current Limit (LM3503-16)
Current Limit (LM3503-25)
vs
vs
VIN
Temperature
Figure 23.
Figure 24.
10
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Copyright © 2005–2006, Texas Instruments Incorporated
Product Folder Links: LM3503


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