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LTC1921 Datasheet(PDF) 17 Page - Linear Technology

Part # LTC1921
Description  Negative Voltage Hot Swap Controllers in SOT-23
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1921 Datasheet(HTML) 17 Page - Linear Technology

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4251b12f
LTC4251B/LTC4251B-1/
LTC4251B-2
APPLICATIONS INFORMATION
Figure 7. System Power-Up Timing (All Waveforms are Referenced to VEE)
Figure 8. Power-Up Timing with a Short-Pin (All Waveforms are Referenced to VEE)
13
24
5 6
7 8
9
VIN CLEARS VLKO, CHECK VUVHI <UV/0V < VOVLO, TIMER< VTMRL, GATE < VGATEL AND SENSE < VCB.
TIMER CLEARS VTMRL, CHECK GATE < VGATEL AND SENSE < VCB.
GND-VEE
UV/0V
VIN
TIMER
GATE
SENSE
VOUT
VLKO
VTMRH
VTMRL
VACL
VCB
5.8μA
5.8μA
5.8μA
INITIAL TIMING CYCLE
START-UP CYCLE
4251b12 F07
230μA
58μA
58μA
13
24
5 6
7 8
9
UV/0V CLEARS VUVHI, CHECK VIN < VLKO – VLKH, TIMER < VTMRL, GATE < VGATEL AND SENSE < VCB.
TIMER CLEARS VTMRL, CHECK GATE < VGATEL AND SENSE < VCB.
GND-VEE
UV/0V
VIN
TIMER
GATE
SENSE
VOUT
VUVHI
VLKO
VTMRH
VTMRL
VACL
VCB
5.8μA
5.8μA
5.8μA
INITIAL TIMING CYCLE
START-UP CYCLE
4251b12 F08
230μA
58μA
58μA



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