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LM3414SD 数据表(PDF) 6 Page - Texas Instruments

部件名 LM3414SD
功能描述  Common Anode-Capable Constant Current Buck LED Driver
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM3414SD 数据表(HTML) 6 Page - Texas Instruments

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LM3414, LM3414HV
SNVS678F – JUNE 2010 – REVISED NOVEMBER 2015
www.ti.com
Electrical Characteristics (continued)
MIN and MAX limits apply for TJ = –40°C to 125°C unless specified otherwise. VIN = 24 V unless otherwise indicated.
PARAMETER
TEST CONDITIONS
MIN(1)
TYP(2)
MAX(1)
UNIT
INTERNAL VOLTAGE REGULATOR
CVCC = 1 µF, No Load to IVCC = 2
4.7
5.4
6
V
mA
VCC
VCC regulator output voltage
(3)
VIN = 4.5 V, 2-mA Load
3.8
4.2
V
MAIN SWITCH
RLX
Resistance across LX and GND
Main Switch Turned ON
1.8
THERMAL PROTECTION
TSD
Thermal shutdown temperature
TJ Rising
170
°C
Thermal shutdown temperature
TSD-HYS
TJ Falling
10
°C
hysteresis
(3)
VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading to the pin.
6.6 Typical Characteristics
All curves taken at VIN = 48 V with configuration in typical application for driving twelve power LEDs with ILED = 1 A shown in
this data sheet. TA = 25°C, unless otherwise specified.
Figure 1. IOUT vs VIN, (4 - 8 LED), LM3414HV
Figure 2. IOUT vs VIN, (10 - 18 LED), LM3414HV
Figure 3. Efficiency vs VIN, (4 - 8 LED), LM3414HV
Figure 4. Efficiency vs VIN, (10 - 18 LED), LM3414HV
6
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Product Folder Links: LM3414 LM3414HV


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