MAX4960 Maxim Integrated Products, MAX4960 Datasheet - Page 8

• Manufacturer Part Number: MAX4960
• Description: (MAX4959 / MAX4960) High-Voltage OVP with Battery Switchover
• Manufacturer: Maxim Integrated Products

The following table lists the different modes of operations:
High-Voltage OVP with Battery Switchover
Figure 1. Timing Diagram
8
V
V
(debounce timeout ongoing)
V
(debounce timeout elapsed)
V
(blanking timeout ongoing)
V
(blanking timeout elapsed)
V
IN
UVLO
UVLO
INTUVREF
INTUVREF
IN
_______________________________________________________________________________________
> V
< V
< V
< V
OVLO
INTUVREF
IN
IN
V
V
V
V
< V
< V
GATE1
DD
CB
GATE2
IN RANGE
< V
< V
IN
IN
V
IN
OVLO
OVLO
< V
< V
OVLO
OVLO
V
OVLO
P1 OFF (not affected by CB)
P1 OFF (not affected by CB)
CB = 1 -> P1 is OFF
CB = 0 -> P1 is ON
CB = 1 -> P1 is OFF
CB = 0 -> P1 is ON
P1 OFF (not affected by CB). P1 does not turn on again until
adapter is unplugged (V
P1 OFF (not affected by CB). P1 does not turn on again until
adapter is unplugged (V
t
DEB
V
DD REGULATED
IN
IN
<~0.75V) and plugged in again.
<~0.75V) and plugged in again.
V
P1 STATE
OVLO
t
DEB
V
UVLO
t
BLANK
INTUV
REF
V
t
UVLO
DEB
t
CB = 1 -> P2 is ON
CB = 0 -> P2 is OFF
BLANK
P2 STATE