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LT1640AL Datasheet(PDF) 25 Page - Linear Technology

Part # LT1640AL
Description  Negative Voltage Hot Swap Controllers
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1640AL Datasheet(HTML) 25 Page - Linear Technology

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LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
25
425212fd
APPLICATIONS INFORMATION
UV/OV
TIMER
GATE
SENSE
SS
DRAIN
PWRGD
5.8μA
58μA
58μA
5.8μA
5.8μA
UV/OV CLEARS VUVHI, CHECK OV CONDITION, GATE < VGATEL, SENSE < VCB
OS AND TIMER < VTMRL
12
3
4 5 67
8
9
TIMER CLEARS VTMRL, CHECK GATE < VGATEL, SENSE < VCB
OS
10
11
12
425212 F12
UV/OV DROPS BELOW VOVLO AND TIMER RESTARTS INITIAL TIMING CYCLE
UV/OV OVERSHOOTS VOVHI AND TIMER ABORTS INITIAL TIMING CYCLE
VACL
VCB
DRN
OS
VIN – VGATEH
VDRNL
VDRNCL
CB + VOS)
ACL + VOS)
VGATEL
VTMRL
VTMRH
VOVHI
VUVHI
VOVLO
GATE
START-UP
INITIAL TIMING
OV
TIMER
GATE
SENSE
SS
5.8μA
58μA
58μA
5.8μA
12 34
5
67 8 9
425212 F13
OV DROPS BELOW VOVLO, CHECK GATE < VGATEL, SENSE < VCB
OS
OV OVERSHOOTS VOVHI. GATE AND SS ARE PULLED DOWN, PWRGD AND TIMER ARE UNAFFECTED
VACL
VCB
DRN
OS
VIN – VGATEH
CB + VOS)
ACL + VOS)
VGATEL
VOVHI
VTMRH
VOVLO
GATE
START-UP
Figure 13. Overvoltage Timing (All Waveforms Are Referenced to VEE)
Figure 12. Undervoltage Timing with an Overvoltage Glitch (All Waveforms Are Referenced to VEE)



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