Maxim MAX14742 Provides robust bidirectional power path Datasheet

ABRIDGED DATA SHEET
EVALUATION KIT AVAILABLE
MAX14740–MAX14742/
MAX20320
General Description
The MAX14740—MAX14742/MAX20320 compact 6A
smart power-path selector with reset control features a
low 11mΩ (typ) RON internal FET and provides the system power from two separate power sources. The devices
feature reset and disconnect functions to provide system
power, reset, and disconnect based on multiple inputs,
including MR1, MR2, and TAIN.
The devices feature two individual enable inputs to control
each power path. The MAX14740 enable function is
provided through I2C control, while those of the MAX14741/
MAX14742//MAX20320 are performed by GPIO control.
Each enable input controls the corresponding path as
an independent switch. However, when both paths are
enabled, the device can either autoselect the input source
or have both inputs connected to the output. When autoselect is
chosen, the internal comparator controls the path based
on the voltage at the input nodes. The devices also
feature an ultra-low supply current, even during an operating
state or off state, providing longer battery life.
The devices are available in 20-bump (1.6mm x 2.1mm)
wafer-level packages (WLPs) and operate over the -40°C
to +85°C extended temperature range.
Applications
●●
●●
●●
●●
Smart Phones
Tablet PCs
Cameras
Game Console
19-7756; Rev 1; 7/16
Smart, Compact, 6A, Power-Path
Selector with Reset Control
Benefits and Features
●● Provides Robust Bidirectional Power Path
• Wide Operating Input Voltage: +1.6V to +5.5V
• 6A Continuous-Current Capability
• Two Integrated 11mΩ (typ) MOSFET Switches
●● Flexible System Design with Battery Connect, Reset,
and Disconnect
• I2C Control: MAX14740
• Programmable Connect Time
• Programmable Reset Setup Time
• Programmable Reset Pulse Length
• Programmable Disconnect Setup Time
• Programmable Comparator Hysteresis
• Programmable Input Autoselect
●● GPIO Control: MAX14741/MAX14742/MAX20320
• Programmable Comparator Hysteresis
• Programmable Input Autoselect
●● Long Battery Life
• Ultra-Low Quiescent Supply Current 7.5µA (typ)
• Fast Switchover
• Optimum Soft-Start Feature
Ordering Information appears at end of data sheet.
ABRIDGED DATA SHEET
MAX14740–MAX14742/
MAX20320
Smart, Compact, 6A, Power-Path
Selector with Reset Control
Typical Application Circuits (continued)
IN1
MAX14742/MAX20320
BATTERY 1
CHARGER
OUT
TA
IN2
BATTERY 2
SYSTEM LOAD
MR1
EN1
MR2
CONTROL
HS
GND
AP OR PMIC
EN2
TAIN
DI
OUT
Ordering Information/Selector Guide
PART
COMMUNICATION
COMPARATOR
THRESHOLD
OUT DISCHARGE
ENABLE
tDB
PINPACKAGE
MAX14740EWP+T
I2C
PROGRAMMABLE
PROGRAMMABLE
2.5 sec
20 WLP
MAX14741EWP+T
GPIO
300mV/500mV
NO
2.5 sec
20 WLP
MAX14742EWP+T
GPIO
200mV/400mV
YES
2.5 sec
20 WLP
MAX20320EWP+T
GPIO
200mV/400mV
+Denotes a lead(Pb)-free/RoHS-compliant package.
YES
1 sec
20 WLP
T = Tape and reel.
Chip Information
PROCESS: BiCMOS
www.maximintegrated.com
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
20 WLP
W201G2+1
21-100016
Refer to
Application
Note 1891
Maxim Integrated │ 25
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