MAX1558ETB+T Maxim Integrated Products, MAX1558ETB+T Datasheet

IC CURR-LIM SW DUAL PROG 10-TDFN

MAX1558ETB+T

Manufacturer Part Number
MAX1558ETB+T
Description
IC CURR-LIM SW DUAL PROG 10-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1558ETB+T

Applications
USB
Interface
USB
Voltage - Supply
2.75 V ~ 5.5 V
Package / Case
10-TDFN Exposed Pad
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1558/MAX1558H are dual, current-limited
switches with autoreset for USB applications. Autoreset
latches the switch off if it is shorted for more than 20ms,
saving system power. The shorted output is then tested
to determine when the short is removed to automatically
restart the channel. Each channel delivers up to 1.2A
and meets all IEC specifications for USB ports. Low
quiescent supply current (45µA) and standby current
(3µA) conserve battery power in portable applications.
The MAX1558/MAX1558H safety features ensure that the
USB port is protected. Built-in thermal-overload protection
limits power dissipation and junction temperature.
Accurate, programmable current-limiting circuitry pro-
tects the input supply against both overload and short-cir-
cuit conditions. 20ms fault blanking enables the circuit to
ignore transient faults, such as those caused when hot
swapping a capacitive load, preventing false alarms to
the host system. The MAX1558/MAX1558H also feature
reverse-current protection circuitry to block current flow
from the output to the input when the switches are off.
The MAX1558/MAX1558H are available in space-sav-
ing 3mm x 3mm, 10-pin TDFN packages. The MAX1558
is enabled with an active-low signal, and the
MAX1558H is enabled with an active-high signal.
19-3128; Rev 2; 3/08
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.
Dual, 3mm x 3mm, 1.2A/Programmable-Current
TOP VIEW
USB Ports and Hubs
Notebook Computers and Desktops
PDAs and Palmtop Computers
Docking Stations
________________________________________________________________ Maxim Integrated Products
+
10
1
3mm x 3mm
General Description
(MAX1558H)
MAX1558
9
2
TDFN
Pin Configuration
8
3
7
4
6
5
Applications
USB Switches with Autoreset
♦ 55mΩ Switch Resistance
♦ Tiny 10-Pin, 3mm x 3mm TDFN Package
♦ 14% Accurate Current Limit
♦ Autorestart when Fault is Removed
♦ Programmable Current Up to 1.2A
♦ Thermal-Overload Protection
♦ Built-In 20ms Fault Blanking
♦ Compliant to All USB Specifications
♦ 2.7V to 5.5V Supply Range
♦ Independent-Output Fault Indicators
♦ Block Reverse Current when Disabled
♦ 15kV ESD Protection (with Capacitor)
♦ UL Recognized: UL# E211395
+ Denotes a lead-free package.
MAX1558ETB+
MAX1558HETB+
2.7V TO 5.5V
PART
INPUT
Typical Operating Circuit
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
INA
INB
FLTA
FLTB
ISET
MAX1558
PIN-
PACKAGE
10 TDFN
(3mm x 3mm)
10 TDFN
(3mm x 3mm)
OUTA
OUTB
GND
ONA
ONB
Features
ONA
ONB
MARK
TOP
AAR
USB
PORT A
USB
PORT B
AAS
1

Related parts for MAX1558ETB+T

MAX1558ETB+T Summary of contents

Page 1

... TDFN 3mm x 3mm ________________________________________________________________ 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. USB Switches with Autoreset ♦ 55mΩ Switch Resistance ♦ Tiny 10-Pin, 3mm x 3mm TDFN Package ♦ 14% Accurate Current Limit ♦ ...

Page 2

Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset ABSOLUTE MAXIMUM RATINGS IN_, ON_, OUT_, ISET, FLT_ to GND........................-0.3V to +6V IN_ to OUT_ (when disabled) (Note 1) ........................-6V to +6V IN_ to OUT_ (when enabled) (Note 2)............-1.6A to +1.6A ...

Page 3

Dual, 3mm x 3mm, 1.2A/Programmable-Current ELECTRICAL CHARACTERISTICS (continued 5V (MAX1558), V ONA ONB INA INB unless otherwise noted. Typical values are at T PARAMETER SYMBOL Output Rise Time Turn-Off Delay from ...

Page 4

Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset ELECTRICAL CHARACTERISTICS (continued 5V (MAX1558), V ONA ONB INA INB unless otherwise noted.) PARAMETER SYMBOL Turn-On Delay Turn-Off Delay from ON ONA/ONB ...

Page 5

Dual, 3mm x 3mm, 1.2A/Programmable-Current ( 5V (MAX1558), V ONA ONB INA INB +25°C, unless otherwise noted.) SHUTDOWN CURRENT vs. TEMPERATURE 4.0 ON_ = V (MAX1558) IN_ ON_ = GND (MAX1558H) 3.5 ...

Page 6

Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset ( 5V (MAX1558), V ONA ONB INA INB +25°C, unless otherwise noted.) AUTORESET CURRENT vs. TEMPERATURE 5.5V IN_ 36 ...

Page 7

Dual, 3mm x 3mm, 1.2A/Programmable-Current PIN NAME Power Input for OUTA. Connect INA and INB together and bypass with a 0.1µF capacitor to ground. 1 INA Load conditions may require additional bulk capacitance to prevent the input from being pulled ...

Page 8

Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset INA ONA ONA ONB ONB INB 0.6V ISET Figure 2. Functional Diagram 8 _______________________________________________________________________________________ CHARGE PUMP ILIMA BIAS THERMAL SHUTDOWN 30mA UVLO FAULT LOGIC REF 30mA OSC TIMER 25kHz 20ms CHARGE ...

Page 9

Dual, 3mm x 3mm, 1.2A/Programmable-Current Undervoltage Lockout and Input Voltage Requirements The MAX1558/MAX1558H include a UVLO circuit to prevent erroneous switch operation when the input volt- age is low during startup and brownout conditions. Operation is inhibited when V is ...

Page 10

Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset Applications Information Setting the Current Limit A resistor from ISET to ground programs the current- limit value for both outputs. Use a resistor between 26kΩ and 86kΩ to set the current ...

Page 11

Dual, 3mm x 3mm, 1.2A/Programmable-Current For a 5V input and 1V output, the maximum possible power dissipation per switch is 0.5 x (1.5A) x ( Since the package power dissipation is limited to 1952mW, ...

Page 12

Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 12 ______________________________________________________________________________________ Package Information ...

Page 13

Dual, 3mm x 3mm, 1.2A/Programmable-Current (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) COMMON DIMENSIONS SYMBOL MIN. MAX. A 0.70 0.80 D 2.90 3.10 E ...

Page 14

... 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products ...

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