MAX16059ATT21+T Maxim Integrated Products, MAX16059ATT21+T Datasheet - Page 6

• Manufacturer Part Number: MAX16059ATT21+T
• Description: IC SUPERVISOR OD 2.1V 6-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of MAX16059ATT21+T

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: Adjustable/Selectable
• Voltage - Threshold: 2.1V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 6-TDFN Exposed Pad
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

125nA Supervisory Circuits with Capacitor-
Adjustable Reset and Watchdog Timeouts
Note 6: Floor: take the integral value.
6
MAX16056/
MAX16058
_______________________________________________________________________________________
—
—
1
2
3
4
5
6
7
8
PIN
MAX16057/
MAX16059
—
—
—
—
1
2
3
4
6
5
RESET
NAME
GND
WDS
SWT
WDI
N.C.
SRT
V
MR
EP
CC
Push-Pull or Open-Drain Reset Output. RESET asserts whenever V
selected reset threshold voltage (V
for the reset timeout period after all reset conditions are deasserted, and then goes high.
The watchdog timer triggers a reset pulse (t
(MAX16056/MAX16058).
Ground
Watchdog Timeout Input. Connect a capacitor between SWT and GND to set the basic
watchdog timeout period (t
5.15 x 10
use Table 2. Extend the basic watchdog timeout period by using the WDS input. Connect
SWT to ground to disable the watchdog timer function. The value of the capacitor must be
between 2275pF and 0.54µF to have a valid watchdog timeout period.
Manual-Reset Input. Drive MR low to manually reset the device. RESET remains asserted
for the reset timeout period after MR is released. There is no internal pullup on MR. MR
must not be left unconnected. Connect MR to V
Reset Timeout Input. Connect a capacitor from SRT to GND to select the reset timeout
period. Determine the period as follows: t
C
4.7µF.
Watchdog Input. A falling transition must occur on WDI within the selected watchdog
timeout period or a reset pulse occurs. The watchdog timer clears when a falling transition
occurs on WDI or whenever RESET is asserted. Connect SWT to ground to disable the
watchdog timer function.
Watchdog Select Input. WDS selects the watchdog timeout mode. Connect WDS to
ground to select normal mode. The watchdog timeout period is t
to select extended mode, multiplying the basic timeout period (t
change in the state of WDS clears the watchdog timer.
Supply Voltage. V
monitor. For noisy systems, bypass V
No Connection. Not internally connected.
Exposed Pad. Connect EP to GND or leave unconnected.
SRT
in Farads, or use Table 2. The value of the capacitor must be between 39pF and
6
/6.4ms] x 6.4ms + 3.2ms (Note 6) with t
CC
is the power-supply input and the input for fixed threshold V
WD
). Determine the period by the formula t
TH
CC
) or manual reset is pulled low. RESET remains low
FUNCTION
with a 0.1µF capacitor to GND.
RP
RP
= 5.15 x 10
) whenever a watchdog fault occurs
CC
WD
if not used.
in seconds and C
6
x C
SRT
Pin Description
WD
WD
with t
CC
) by a factor of 128. A
. Connect WDS to V
WD
drops below the
RP
SWT
in seconds and
= Floor[C
in Farads, or
CC
SWT
x
CC