LTC4253 LINER [Linear Technology], LTC4253 Datasheet - Page 23

• Manufacturer Part Number: LTC4253
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
(–48RTN) – (–48V)
GND – V
SQTIMER
PWRGD1
PWRGD2
PWRGD3
TIMER
SENSE
DRAIN
UV/OV
EE
GATE
V
EN2
EN3
OUT
V
OR
SS
IN
1 2
V
RESET < 0.8V, GATE < V
Figure 8. System Power-Up Timing (All Waveforms Are Referenced to V
IN
V
V
CLEARS V
LKO
GATEL
LKO
, CHECK UV > V
INITIAL TIMING
5μA
GATEL
50μA
, SENSE < V
UVHI
ACL
V
(V
CB
TMRH
UV
CB
+ V
+ V
V
TMRL
FOR THE LTC4253A), OV < V
OS
OS
OS
)
)
50μA
3 4 56
TIMER CLEARS V
START-UP
OS
GATE
AND TIMER < V
7 89
50μA
V
SQTMRH
5μA
A B
DRN
TMRL
V
V
V
V
V
OVLO
IN
ACL
CB
DRNCL
DRNL
, CHECK GATE < V
TMRL
– V
C
5μA
(V
GATEH
OV
LTC4253/LTC4253A
5μA
V
– V
IH
OVHST
V
SQTMRH
D
GATEL
FOR THE LTC4253A),
V
IH
, SENSE < V
EE
5μA
)
4253 F08
CB
OS
23
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