MAX6792 MAXIM [Maxim Integrated Products], MAX6792 Datasheet - Page 20

• Manufacturer Part Number: MAX6792
• Description: High-Voltage, Micropower, Single/Dual Linear Regulators with Supervisory Functions
• Manufacturer: MAXIM [Maxim Integrated Products]

High-Voltage, Micropower, Single/Dual Linear
Regulators with Supervisory Functions
Table 1. Preset Output Voltage and Reset
Threshold
Table 2. Preset Timeout Period
Table 3. ENABLE/ENABLE1 and HOLD Truth Table/State Table
20
Hold setup state
SUFFIX (_)
OPERATING
Turn-on state
Initial state
Hold state
PART
______________________________________________________________________________________
Off state
STATE
M
W
L
T
S
Z
Y
V
SUFFIX (_)
PART
D0
D1
D2
D3
D4
VOLTAGE (V)
ENABLE1/
OUTPUT
ENABLE
5.0
5.0
3.3
3.3
2.5
2.5
1.8
1.8
High
High
Low
Low
Low
RESET TIMEOUT PERIOD
Don’t care
Don’t care
HOLD
High
RESET THRESHOLD
Low
Low
(NOMINAL)
3.125ms
12.5ms
200ms
50ms
35µs
(NOMINAL)
4.625
4.375
3.053
2.888
2.313
2.188
1.665
1.575
REGULATOR 1
OUTPUT
Off
On
On
On
Off
ENABLE/ENABLE1 is pulled to GND through internal pulldown.
OUT/OUT1 is disabled.
ENABLE/ENABLE1 is externally driven high turning OUT/OUT1
on. HOLD is pulled up to OUT/OUT1.
HOLD is externally pulled low while ENABLE/ENABLE1 remains
high, and the regulator latches on.
ENABLE/ENABLE1 is driven low (or allowed to float low by an
internal pulldown). HOLD remains externally pulled low keeping
OUT/OUT1 on.
HOLD is driven high (or pulled high by the internal pullup) while
ENABLE/ENABLE1 is low. OUT/OUT1 is turned off and
ENABLE/ENABLE1 and HOLD logic returns to the initial state.
Use the following formulas to determine the high/low
threshold levels and the hysteresis:
V
R8)]
V
R8)]
where V
age rising and V
tored voltage falling.
PROCESS: BiCMOS
H-L
HYS
= V
= V
L-H
PFI
PFI
V
L-H
x (1 + R5 / R6 ) + (V
is the threshold level for the monitored volt-
x (R5 / R7 ) - (V
= V
H-L
PFI
is the threshold level for the moni-
COMMENT
x (1 + R5 / R6 +R5 / R7)
Chip Information
PFI
PFI
- V
- V
TERM
TERM
) [R5 / (R7 +
) [R5 / (R7 +