MAX6792 MAXIM [Maxim Integrated Products], MAX6792 Datasheet - Page 11

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

MAX6791/
MAX6792
13, 14
17, 18
10
11
12
15
16
19
20
—
9
High-Voltage, Micropower, Single/Dual Linear
MAX6793/
MAX6794
13, 14
17, 18
PIN
11
12
15
16
19
20
—
—
9
______________________________________________________________________________________
Regulators with Supervisory Functions
MAX6795/
MAX6796
17, 18
11
12
16
19
—
—
—
—
—
9
ENABLE2
ENABLE1
WD-DIS
GATEP
NAME
WDS1
WDS0
OUT2
WDI
PFI
IN
Min/Max Watchdog Logic-Select Input. WDS0 and WDS1 select the watchdog
window ratio or disable the watchdog timer. Drive WDS0 and WDS1 high or
low to select the desired ratio, see Table 4.
Watchdog Input.
MAX6793–MAX6796: A falling or rising transition must occur on WDI within the
selected watchdog timeout period or a reset pulse occurs. The watchdog timer
clears when a transition occurs on WDI or whenever
MAX6791/MAX6792: WDI falling and rising transitions within periods shorter
than t
period. The watchdog timer begins to count after
watchdog timer clears when a valid transition occurs on WDI or whenever
timer function. See the Watchdog Timer section.
Active-Low Regulator Hold Input. When
remains ON even if ENABLE1/ENABLE is pulled low. To shut down the
output of the regulator (OUT/OUT1), release
pulled low. Connect
Regulator 2 Output. OUT2 is a fixed +5V output. Connect a 10µF (min)
capacitor from OUT2 to GND.
Active-High Enable Input 2. Drive ENABLE2 high to turn on OUT2. ENABLE2
is internally connected to ground through a 0.5µA current sink.
Adjustable Power-Fail Comparator Input. Connect PFI to a resistive-divider to
set the desired PFI threshold. The PFI input is referenced to an accurate
1.231V threshold.
Regulator Inputs. Bypass IN with a 1µF capacitor to GND.
pFET Gate Drive. Connect GATEP to the gate of a p-channel MOSFET to
provide low drop reverse-battery voltage protection.
Active-High Enable Input 1. Drive ENABLE1 high to turn on OUT1. ENABLE1
is internally connected to ground through a 0.5µA current sink.
Watchdog Disable Input. Drive WD-DIS low to disable the watchdog timer.
Drive WD-DIS high or connect to OUT/OUT1 to enable the watchdog timer.
The watchdog timer clears when reset asserts.
WD1
is internally connected to OUT/OUT1 through a 2µA current source.
is asserted. Connect WDS0 high and WDS1 low to disable the watchdog
or longer than t
WD2
to OUT1/OUT or leave unconnected if unused.
force
Pin Description (continued)
FUNCTION
to assert low for the reset timeout
is forced low, OUT1/OUT
after ENABLE1/ENABLE is
is deasserted. The
is asserted.
11