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LM2642 Datenblatt(PDF) 10 Page - Texas Instruments

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Teilenummer LM2642
Bauteilbeschribung  Two-Phase Synchronous Step-Down Switching Controller
Download  31 Pages
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM2642 Datenblatt(HTML) 10 Page - Texas Instruments

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background image
100ms/div
VOUT1
2V/div
ON/SS1=ON/SS2
5V/div
VOUT2
2V/div
10ms/div
ILOAD
10A/div
VOUT
1V/div
ON/SS
2V/div
UV_DELAY
2V/div
10ms/div
ILOAD
10A/div
VOUT1
2V/div
VOUT2
1V/div
UV_DELAY
2ms/div
VOUT1
2V/div
VOUT2
2V/div
VOUT1
2V/div
VOUT2
2V/div
VIN
22V/div
VIN
7V/div
ON/SS1=ON/SS2
2V/div
2ms/div
PGOOD1
5V/div
VOUT1
2V/div
ON/SS1=ON/SS2
1V/div
VIN
10V/div
LM2642
SNVS203I – MAY 2002 – REVISED APRIL 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS
Softstart Waveforms
Power On and PGOOD1 Waveforms
(ILOAD1 = ILOAD2 = 0A)
(ILOAD1 = ILOAD2 = 0A)
Figure 4.
Figure 5.
Over-Current and UVP Shutdown
UVP Startup Waveforms
(ILOAD2 = 0A)
Figure 6.
Figure 7.
Shutdown Waveforms
Ch.1 Load Transient Response
(ILOAD1 = ILOAD2 = 0A)
5VOUT, 12VIN
Figure 8.
Figure 9.
10
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