MAX16023PTAS12+T Maxim Integrated Products, MAX16023PTAS12+T Datasheet - Page 8

• Manufacturer Part Number: MAX16023PTAS12+T
• Description: IC BATTERY BACKUP 1.2V 8TDFN-EP
• Manufacturer: Maxim Integrated Products

Specifications of MAX16023PTAS12+T

• Function: Back-Up Management
• Battery Type: All Battery Types
• Voltage - Supply: 1.53 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-WDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Battery-Backup Circuits with
Regulated Output Voltage
8
MAX16023
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1
2
3
4
5
6
7
8
PIN
MAX16024
10
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2
3
4
7
8
9
1
5
6
BATT ON
CEOUT
RESET
NAME
BATT
CEIN
GND
OUT
PFO
V
SET
MR
PFI
EP
CC
Supply Voltage Input. Bypass V
Backup Battery Input. If V
the regulator enters dropout, the regulator is powered from BATT. If V
the regulator is powered from V
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 V
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
internal hysteresis provides noise immunity. The power-fail comparator is powered
from OUT.
Active-Low, Power-Fail Comparator Output. PFO goes low when V
internal V
hysteresis.
Ground
Active-Low Reset Output. RESET asserts when V
MR is pulled low. RESET remains low for the duration of the reset timeout period after
V
pull and open-drain options.
Linear Regulator Output Voltage. Available in the following factory-fixed voltages of
1.2V, 1.8V, 2.5V, 3.0V, or 3.3V for all devices. The MAX16024 is also available with
an adjustable output voltage (1.8V to 5.25V). Bypass OUT to GND with a 10µF
capacitor.
Chip-Enable Input. The input to CE gating circuitry. Connect to GND or OUT if not
used.
Set Output Voltage Input. For the fixed output voltage versions (MAX16024_TB_ _ _),
SET is not used. Connect SET to GND. For MAX16024_TB_, connect SET to an
external resistive divider to set the desired output voltage between 1.8V and 5.25V.
Active-High, Battery-On Output. BATT ON goes high when in the battery backup
mode.
Active-Low, Chip-Enable Output. CEOUT goes low only when CEIN is low and reset
is not asserted. If CEIN is low when reset is asserted, CEOUT stays low for 12µs (typ)
or until CEIN goes high, whichever occurs first.
Exposed Pad. Internally connected to GND. Connect EP to a large ground plane to
aid heat dissipation. Do not use EP as the only ground connection for the device.
CC
rises above the reset threshold and MR goes high. RESET is available in push-
PFT
threshold and goes high when V
CC
through a 30kΩ pullup resistor.
CC
falls below its reset threshold (V
CC
CC
. Bypass BATT to GND with a 0.1µF capacitor.
to GND with a 0.1µF capacitor.
FUNCTION
PFI
CC
rises above V
falls below the reset threshold or
PFT
threshold. A V
Pin Description
TH
PFT
), V
PFI
BATT
+ V
BATT
falls below the
PFI-HYS
PFI-HYS
≥ V
< V
CC
, and if
CC
,