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LM2751SD-B Fiches technique(PDF) 9 Page - Texas Instruments

No de pièce LM2751SD-B
Description  LM2751 Regulated 2X, 1.5X Switched Capacitor White LED Driver
Download  19 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

LM2751SD-B Fiches technique(HTML) 9 Page - Texas Instruments

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3.1
3.5
3.9
4.3
4.7
5.1
5.5
INPUT VOLTAGE (V)
0
4
9
13
18
22
2.7
CIN = 1.0 F
COUT: 10 F
Capacitance,
300 kHz
COUT: 10 F
Capacitance,
725 kHz
COUT: 2.2 F
Capacitance,
300 kHz
COUT: 2.2 F
Capacitance,
725 kHz
LM2751
www.ti.com
SNVS299B – APRIL 2005 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: TA = 25°C, VIN = 3.6V, CS0 = CS1 = VIN, V(EN) = VIN, CIN = COUT = 2.2µF, C1 = C2 = 1µF.
Output Voltage Ripple
vs. Input Voltage Version B (4.5V), Load = 120mA
Output Voltage Ripple, Version B (4.5V)
VIN = 3.6V, Load = 150mA
CH1: VOUT; Scale: 10mV/Div, AC Coupled
Time scale: 400ns/Div
Figure 14.
Figure 15.
Line Step Response, Version B (4.5V)
Load Step Response, Version B (4.5V)
VIN = 3.2V - 4.2V Step, Load = 150mA
VIN = 3.6V, Load = 20mA - 150mA Step
CH1 (top): VIN; Scale: 1V/Div, DC Coupled
CH1 (top): VOUT; Scale: 50mV/Div, AC Coupled
CH2: VOUT; Scale: 50mV/Div, AC Coupled
CH2: Output Current; Scale: 50mA/Div
Time scale: 200µs/Div
Time scale: 200µs/Div
Figure 16.
Figure 17.
Start-up Behavior, Version A (5V), Load = 80mA
Start-up Behavior, Version B (4.5V), Load = 150mA
CH1: EN pin; Scale: 2V/Div
CH1: EN pin; Scale: 2V/Div
CH2: VOUT; Scale: 2V/Div
CH2: VOUT; Scale: 2V/Div
Time scale: 100µs/Div
Time scale: 100µs/Div
Figure 18.
Figure 19.
Copyright © 2005–2013, Texas Instruments Incorporated
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