MAX16016PTBS+T Maxim Integrated Products, MAX16016PTBS+T Datasheet - Page 10

• 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

Low-Power µP Supervisory Circuits with
Battery-Backup Circuit and Chip-Enable Gating
10
MAX16020 MAX16021
______________________________________________________________________________________
—
1
2
3
4
5
6
7
8
PIN
—
1
2
3
4
5
6
7
8
BATT_TEST
BATTOK
BATTON
RESET
NAME
BATT
WDI
MR
PFI
LL
Backup Battery Input. If V
connects to BATT. If V
GND with a 0.1µF 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 threshold V
hysteresis provides noise 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
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.
Active-Low Low-Line Output. LL goes low when V
(Table 2). LL provides an early warning of V
to generate a nonmaskable interrupt (NMI) to initiate an orderly shutdown routine when
V
Open-Drain Battery-Test Output. Pulses low for 1.3s every 24 hours during the battery
voltage test. If V
load during the battery test.
Active-High Reset Output. RESET asserts when V
MR asserts and stays asserted for the reset timeout period after V
threshold and MR deasserts.
Battery-OK Output. BATTOK goes low when the battery voltage falls below the BATTOK
threshold (BATTOK is low when in battery-backup mode).
Active-High Battery-On Output. BATTON goes high when in battery-backup mode.
CC
is falling.
WD
), the internal watchdog timer runs out and asserts WDO. The internal watchdog
BATT
Pin Description—MAX16020/MAX16021
< 2.6V, BATTOK deasserts low. See Figure 6 for providing additional
CC
CC
rises above 1.01 x V
falls below its reset threshold, and if V
FUNCTION
CC
BATT
failure before reset asserts. Use this output
CC
CC
, OUT connects to V
falls below the reset threshold or when
falls to 2.5% above the reset threshold
PFT
CC
, V
BATT
rises above the reset
PFT-HYS
CC
> V
. Bypass BATT to
CC
internal
, OUT