MAX6880 データシートの表示（PDF） - Maxim Integrated
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MAX6880 Datasheet PDF : 19 Pages
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Dual-/Triple-Voltage, Power-Supply
Sequencers/Supervisors
EN/UV
VEN_R
BUS VOLTAGE MONITORED
THROUGH EN/UV INPUT
EN/UV
VEN_F
IN_
OUT_
IN1 = 3.3V
IN2 = 1.8V
IN3 = 0.7V
CAPACITOR-
ADJUSTED
SLEW RATE
OUT1 = 3.3V
MONITORED THROUGH SET THRESHOLDS ON SET_ INPUTS
OUT2 = 1.8V
OUT3 = 0.7V
PG/RST = LOW
tDELAY
tDELAY
tDELAY
tTIMEOUT
Figure 4. Timing Diagram (Aborted Sequencing)
EN/UV
VEN_R
OUT_
OUT1
OUT2
OUT3 IS SLOW
OUT1
OUT2
OUT3 IS SLOW
tDELAY
tDELAY
tFAULT AND tRETRY NOT TO SCALE
ALL SET > 0.5V AND IN_ ≥ 2.7V
tDELAY
tFAULT
Figure 5. tFAULT and tRETRY Timing Diagram in Sequencing
tRETRY
tDELAY
tDELAY
tDELAY
tFAULT
6 _______________________________________________________________________________________
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