MAX16016PTBS+T Maxim Integrated Products, MAX16016PTBS+T Datasheet - Page 9

• Manufacturer Part Number: MAX16016PTBS+T
• Description: IC UP SUPERVISOR LP 10TDFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Battery Backup Circuitr

Specifications of MAX16016PTBS+T

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 145 ms Minimum
• Voltage - Threshold: 2.93V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Battery-Backup Circuit and Chip-Enable Gating
PIN
10
1
2
3
4
5
6
7
8
9
BATTON
RESET
NAME
BATT
_______________________________________________________________________________________
GND
OUT
PFO
Low-Power µP Supervisory Circuits with
V
WDI
MR
PFI
CC
Supply Voltage Input. Bypass V
Backup Battery Input. If V
BATT. If V
capacitor.
Active-Low Manual Reset Input. RESET asserts when MR is pulled low. RESET remains low for the
duration of reset timeout period after MR transitions from low to high. Connect MR to OUT or leave
unconnected if not used. MR is internally connected to OUT through a 30kΩ pullup resistor.
Power-Fail Comparator Input. Connect PFI to a resistive divider to set the desired PFI threshold. The
PFI input is referenced to an internal V
immunity. The power-fail comparator is powered from OUT.
Watchdog Timer Input. If WDI remains high or low for longer than the watchdog timeout period (t
the internal watchdog timer runs out and a reset pulse is triggered for the reset timeout period. The
internal watchdog clears when reset asserts or whenever WDI sees a rising or falling edge. To
disable the watchdog feature, leave WDI unconnected or three-state the driver connected to WDI.
Acti ve- H i g h Batter y- O n Outp ut. BATTON g oes hi g h w hen i n b atter y- b ackup m od e.
Active-Low Power-Fail Comparator Output. PFO goes low when V
threshold and goes high when V
Ground
Acti ve- Low Reset Outp ut. RESET asser ts w hen V
RESET r em ai ns l ow for the d ur ati on of the r eset ti m eout p er i od after V
and M R g oes hi g h. RESET al so asser ts l ow w hen the i nter nal w atchd og ti m er r uns out.
Switched Output. OUT is connected to V
greater than V
Bypass OUT to GND with a 0.1µF (min) capacitor.
CC
rises above 1.01 x V
BATT
. OUT connects to BATT when RESET is asserted and V
CC
falls below its reset threshold, and if V
CC
PFI
BATT
to GND with a 0.1µF capacitor.
rises above V
PFT
, OUT connects to V
CC
threshold. A V
when the reset output is not asserted or when V
FUNCTION
C C
PFT
fal l s b el ow the r eset thr eshol d or M R i s p ul l ed l ow .
Pin Description—MAX16016
+ V
PFT-HYS
PFT-HYS
CC
. Bypass BATT to GND with a 0.1µF
internal hysteresis provides noise
hysteresis.
PFI
BATT
C C
falls below the internal V
r i ses ab ove the r eset thr eshol d
> V
BATT
CC
, OUT connects to
is greater than V
CC
PFT
is
WD
CC
.
),
9