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LT1640AL Datasheet(PDF) 23 Page - Linear Technology

Part # LT1640AL
Description  ??8V Hot Swap Controllers
PDF  34 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1640AL Datasheet(HTML) 23 Page - Linear Technology

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LTC4253/LTC4253A
23
425353afe
APPLICATIONS INFORMATION
4253 F08
GATE
START-UP
INITIAL TIMING
VLKO
VGATEL
GND – VEE OR
(–48RTN) – (–48V)
UV/OV
VIN
TIMER
GATE
SENSE
VOUT
12
3 4 56
7
89
SS
DRAIN
PWRGD1
AB
PWRGD2
PWRGD3
SQTIMER
EN2
EN3
CD
VIN CLEARS VLKO, CHECK UV > VUVHI (VUV FOR THE LTC4253A), OV < VOVLO (VOV – VOVHST FOR THE LTC4253A),
RESET < 0.8V, GATE < VGATEL, SENSE < VCB
OS AND TIMER < VTMRL
TIMER CLEARS VTMRL, CHECK GATE < VGATEL, SENSE < VCB
OS
VSQTMRH
5μA
5μA
VSQTMRH
VIH
VIH
VTMRH
VACL
VCB
VTMRL
ACL + VOS)
CB + VOS)
OS
5μA
50μA
5μA
5μA
50μA
50μA
VDRNCL
VDRNL
VIN – VGATEH
DRN
Figure 8. System Power-Up Timing (All Waveforms Are Referenced to VEE)



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