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MCP18480 Datasheet(PDF) 8 Page - Microchip Technology

Part # MCP18480
Description  -48V Hot Swap Controller
PDF  64 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP18480 Datasheet(HTML) 8 Page - Microchip Technology

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MCP18480
DS20091B-page 8
 2003 Microchip Technology Inc.
1.2
Timing Diagrams and Specifications
FIGURE 1-2:
Startup Waveforms.
TABLE 1-3:
STARTUP TIMING REQUIREMENTS
Param.
No.
Parameter
Sym
Min Typ Max Units
Conditions
MA000
UVTH/OVTH High (VPOS applied) to
DRAINTH falling
TUVOVH2DTHF—
20.2
—
ms
MA001A DRAINTH falling to PWRGOOD High
TDTHF2GATEPGH
—
19.3
—
ms
MA001B DRAINTH falling to GATE Fast Ramp
TDTHF2GATEFR
—
13.1
—
ms
MA002
GATE Fast Ramp to external FET
fully enhanced
TGATEFR2FETE
—16.1
—
ms
Note:
Minimum and maximum specifications will be provided in future revisions of this data sheet.
PWRGOOD
UVTH
OVTH
VREFOUT
< 2.5V
= 2.5V
> 2.5V
DRAINTH
MA000
MA001A
GATE
= 5V (1)
= 12V
MA002
Note 1: This voltage is determined by the threshold voltage of the external FET.
This voltage needs to ensure the external FET is fully enhanced.
MA001B



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