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LM74700MDDFREP Datasheet(PDF) 22 Page - Texas Instruments

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Part # LM74700MDDFREP
Description  LM74700-EP Low IQ Ideal Diode Controller
PDF  32 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM74700MDDFREP Datasheet(HTML) 22 Page - Texas Instruments

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V
IN1
LOAD
V
OUT
C
OUT
LM74700
GATE
CATHODE
EN
ANODE
VCAP
GND
V
IN2
LM74700
GATE
CATHODE
EN
ANODE
VCAP
GND
Figure 9-18. Typical OR-ing Application
Figure 9-12 to Figure 9-15 show the smooth switch over between two power supply rails VIN1 at 28 V and VIN2 at
33 V. Figure 9-16 and Figure 9-17 illustrate the performance when VIN2 fails. LM74700-EP controlling VIN2 power
rail turns off quickly, so that the output remains uninterrupted and VIN1 is protected from VIN2 failure.
10 Power Supply Recommendations
The LM74700-EP ideal diode controller is designed for the supply voltage range of 3.2 V ≤ VANODE ≤ 65 V. If
the input supply is located more than a few inches from the device, an input ceramic bypass capacitor higher
than 22 nF is recommended. To prevent LM74700-EP and surrounding components from damage under the
conditions of a direct output short circuit, it is necessary to use a power supply having over load and short circuit
protection.
LM74700-EP
SNOSDD6 – SEPTEMBER 2021
www.ti.com
22
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: LM74700-EP



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