MAX16023PTAS12+T Maxim Integrated Products, MAX16023PTAS12+T Datasheet

IC BATTERY BACKUP 1.2V 8TDFN-EP

MAX16023PTAS12+T

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

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
The MAX16023/MAX16024 low-power battery-backup cir-
cuits with a regulated output are capable of delivering up
to 100mA output current. The MAX16023/MAX16024
include a low-dropout regulator, a microprocessor (µP)
reset circuit, and a battery switchover circuit. Additional
available features include a manual reset, a power-fail
comparator, and a battery-on indicator. These devices
reduce the number of external components to minimize
board space and improve reliability.
The MAX16023/MAX16024 are ideally suited for provid-
ing power for backing up critical memory such as static
random-access memory (SRAM) or real-time clocks
(RTCs). The regulated output is powered by V
is present and switches over to the backup power dur-
ing brownout. The MAX16023/MAX16024 accept an
input voltage from 1.53V to 5.5V and provide fixed stan-
dard output voltages of 1.2V, 1.8V, 2.5V, 3.0V, and 3.3V.
The MAX16024 offers the ability to externally set the out-
put voltage using a resistive divider. All outputs are
available with push-pull or open-drain configurations.
The MAX16023 offers a power-fail comparator for monitor-
ing an additional voltage or for providing an early power-
fail warning. Another feature includes a manual-reset input
(MAX16023/MAX16024). The MAX16024 also features
a battery-on indicator and chip-enable gating function.
The MAX16023/MAX16024 are offered in 8- and 10-pin
TDFN packages and are fully specified from -40°C to
+85°C temperature range.
19-4249; Rev 0; 8/08
UL is a registered trademark of Underwriters Laboratories, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Main/Backup Power for RTCs/SRAM
Industrial Controls
GPS Systems
Set-Top Boxes
Point-of-Sale Equipment
Portable/Battery Equipment
________________________________________________________________ Maxim Integrated Products
General Description
+
8
1
MAX16023
7
2
TDFN
Applications
6
3
*EP
5
4
CC
Battery-Backup Circuits with
when it
*EP = EXPOSED PAD
Regulated Output Voltage
♦ System Monitoring for 5V, 3.3V, 3V, 2.5V, or 1.8V
♦ 100mA Low-Dropout Regulator
♦ Factory-Trimmed and Adjustable Output Voltages
♦ 1.53V to 5.5V Operating Voltage Range
♦ Low-Power Consumption: 4µA (typ)
♦ Power-Fail Comparators for Monitoring Voltages
♦ Battery-On Indicator
♦ Battery Freshness Seal
♦ On-Board Gating of CE Signals, 1.5ns
♦ Debounced Manual-Reset Input
♦ 145ms (min) Reset Timeout Period
♦ Tiny 8-Pin and 10-Pin TDFN Packages
♦ UL
The first placeholder “_” designates reset output options. A letter
“L” in this placeholder indicates a push-pull output and letter “P”
indicates an open-drain output. The next placeholder “_” desig-
nates the reset threshold (Table 1). The last two placeholders
“_ _” designate output voltage (Table 2). For the MAX16024 with
adjustable output voltage version, there are no last two place-
holders.
+ Denotes a lead-free/RoHS-compliant package.
T = Tape and reel.
* EP = Exposed pad.
MAX16023_TA_ _ _+T
MAX16024_TB_ _ _+T
Power-Supply Voltages
Down to 0.6V
Propagation Delay (MAX16024)
®
Certified to Conform to IEC 60950-1
PART
+
10
1
9
2
MAX16024
TDFN
8
3
Ordering Information
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
7
4
Pin Configurations
*EP
6
5
PIN-PACKAGE
8 TDFN-EP*
10 TDFN-EP*
Features
1

Related parts for MAX16023PTAS12+T

MAX16023PTAS12+T Summary of contents

Page 1

... MAX16023 + 1 2 TDFN ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Battery-Backup Circuits with Regulated Output Voltage ♦ System Monitoring for 5V, 3.3V, 3V, 2.5V, or 1.8V Power-Supply Voltages ♦ 100mA Low-Dropout Regulator ♦ ...

Page 2

Battery-Backup Circuits with Regulated Output Voltage ABSOLUTE MAXIMUM RATINGS V , BATT, OUT to GND..........................................-0.3V to +6V CC RESET, PFO, BATT ON (all open drain) to GND..................................................................-0.3V to +6V RESET, PFO, BATT ON (all push-pull) to GND .................................................-0. ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 1.53V to 5.5V 3V, reset not asserted BATT ues are +25°C.) (Note PARAMETER SYMBOL Line Regulation Load Regulation Dropout Voltage Output Current Limit ...

Page 4

Battery-Backup Circuits with Regulated Output Voltage ELECTRICAL CHARACTERISTICS (continued 1.53V to 5.5V 3V, reset not asserted BATT ues are +25°C.) (Note PARAMETER SYMBOL BATTERY-ON INDICATOR (BATT ...

Page 5

Table 1. Reset Threshold Ranges RESET THRESHOLD RANGES (V) SUFFIX MIN TYP L 4.508 4.63 M 4.264 4.38 T 2.991 3.08 S 2.845 2.93 R 2.549 2.63 Z 2.243 2.32 Y 2.117 2.19 W 1.603 1.67 V 1.514 1.575 (V ...

Page 6

Battery-Backup Circuits with Regulated Output Voltage ( +25°C, unless otherwise noted.) CC BATT OUT A V FALLING TO RESET DELAY CC vs. TEMPERATURE 100 V FALLING 10V/ ...

Page 7

+25°C, unless otherwise noted.) CC BATT OUT A OUTPUT VOLTAGE vs. V VOLTAGE CC 2.8 MAX16024PTBS25+ 2 OUT 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 ...

Page 8

Battery-Backup Circuits with Regulated Output Voltage PIN NAME MAX16023 MAX16024 BATT — PFI PFO 5 — GND RESET OUT CEIN — 1 — 5 ...

Page 9

BATT PFI MAX16023 _______________________________________________________________________________________ Battery-Backup Circuits with Regulated Output Voltage LDO LOGIC DROPOUT RESET DELAY OUT REF OUT GND Functional Diagrams OUT RESET PFO 9 ...

Page 10

Battery-Backup Circuits with Regulated Output Voltage CEIN MAX16024 10 ______________________________________________________________________________________ Functional Diagrams (continued) BATT LOGIC DROPOUT RESET DELAY CE OUTPUT CONTROL GND OUT LDO SET BATT ON RESET V CC REF CEOUT ...

Page 11

Detailed Description The Typical Applications Circuit shows a typical con- nection using the MAX16024. OUT powers the SRAM higher than the reset threshold (V CC lower than V but higher than V TH BATT powered from V ...

Page 12

Battery-Backup Circuits with Regulated Output Voltage Manual-Reset Input (MAX16023/MAX16024) Many µP-based products require manual-reset capabili- ty, allowing the operator, a test technician, or external logic circuitry to initiate a reset. For the MAX16023/ MAX16024, a logic-low on MR asserts RESET. ...

Page 13

Applications Information The MAX16023/MAX16024 are protected for typical short-circuit conditions of 10s or less. Shorting OUT to ground for longer than 10s might damage the device. Bypass V and BATT to GND with a 0.1µF capacitor CC each. Connect a ...

Page 14

Battery-Backup Circuits with Regulated Output Voltage + 0.1µ PFI TRIP C1 MAX16023 WHERE V PFO THRESHOLD VOLTAGE. GND TO µP +5V PFO 0 ...

Page 15

... MAX16023PTAL18+T Open-Drain MAX16023PTAL25+T Open-Drain MAX16023PTAL33+T Open-Drain MAX16023PTAM12+T Open-Drain MAX16023PTAM18+T Open-Drain MAX16023PTAM25+T Open-Drain MAX16023PTAM33+T Open-Drain MAX16023PTAT12+T Open-Drain MAX16023PTAT18+T Open-Drain MAX16023PTAT25+T Open-Drain MAX16023PTAS12+T Open-Drain MAX16023PTAS18+T Open-Drain MAX16023PTAS25+T Open-Drain MAX16023PTAR12+T Open-Drain MAX16023PTAR18+T Open-Drain MAX16023PTAR25+T Open-Drain MAX16023PTAZ12+T Open-Drain MAX16023PTAZ18+T Open-Drain MAX16023PTAY12+T Open-Drain MAX16023PTAY18+T Open-Drain MAX16023PTAW12+T ...

Page 16

Battery-Backup Circuits with Regulated Output Voltage OUTPUTS (RESET, PFO, RESET PART BATT ON ) MAX16023L Push-Pull MAX16023P Open Drain MAX16024L Push-Pull MAX16024P Open Drain 0.1µF 3V PUSHBUTTON 16 ______________________________________________________________________________________ POWER-FAIL MR COMPARATOR √ √ √ √ √ √ √ √ ...

Page 17

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2008 Maxim Integrated Products ...

Related keywords