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PDF MAX1607 Data sheet ( Hoja de datos )
| Número de pieza | MAX1607 | |
| Descripción | USB Current-Limited Switch in Pin-Compatible Package | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX1607 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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19-1544; Rev 0; 10/99
USB Current-Limited Switch
in Pin-Compatible Package
General Description
The MAX1607 is a current-limited 60mΩ switch with
built-in fault blanking. Its accurate, preset 0.7A to 1.0A
current limit makes it ideal for USB applications. Its low
quiescent supply current (14µA) and standby current
(1µA) conserve battery power in portable applications.
The MAX1607 operates with inputs from +2.7V to
+5.5V, making it ideal for both 3V and 5V systems.
An overcurrent signal (OC) notifies the microprocessor
that the internal current limit has been reached. A 10ms
overcurrent-blanking feature allows momentary faults
(such as those caused when hot-swapping into a
capacitive load) to be ignored, thus preventing false
alarms to the host system. This blanking also prevents
an OC signal from being issued when the device is
powering up.
The MAX1607 has several safety features to ensure that
the USB port is protected. Built-in thermal-overload pro-
tection limits power dissipation and junction tempera-
ture. The device also has accurate internal current-
limiting circuitry to protect the input supply against
overload.
The MAX1607 is a pin-compatible upgrade to Texas
Instruments’ TPS2014, TPS2015, and TPS2041 for USB
applications. The same die is available in a space-saving
10-pin µMAX package (MAX1693) and can be used for
next-generation designs. The MAX1694 is similar to the
MAX1693, but it has a built-in latch that turns off the
power switch in case of a long-term short-circuit condi-
tion.
Applications
Notebook Computers
USB Ports
USB Hubs
Docking Stations
Pin Configuration
TOP VIEW
GND 1
IN 2
IN 3
EN 4
MAX1607
8 OUT
7 OUT
6 OUT
5 OC
Features
o Pin Compatible with TPS2014, TPS2015, and
TPS2041
o Accurate Current Limit (0.7A min, 1.0A max)
o Guaranteed 0.75A Short-Circuit Protection
o 10ms Internal OC Blanking Timeout
o No Overcurrent (OC) Signal During Power-Up
o 125mΩ max High-Side MOSFET
o 500mA Continuous Current
o Short-Circuit and Thermal Protection with
Overcurrent Logic Output
o 1ms Start-Up Time
o Undervoltage Lockout
o 14µA Quiescent Supply Current
o 1µA max Standby Supply Current
o +2.7V to +5.5V Supply Range
o UL Recognition Pending
PART
MAX1607ESA
Ordering Information
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 SO
Typical Operating Circuit
INPUT
+2.7V TO +5.5V
OFF
ON
IN OUT
MAX1607
OC
EN
GND
OUTPUT
SO
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1 page  
USB Current-Limited Switch
in Pin-Compatible Package
Typical Operating Characteristics (continued)
(VIN = +5V, TA = +25°C, unless otherwise noted.)
CURRENT-LIMIT AND OC RESPONSE
CH1
CH2
CURRENT-LIMIT RESPONSE
CH1
CH2
SWITCH TURN-ON TIME
CH1
CH2
CH3 CH3 CH3
CH4
2ms/div
CH1 = VIN, 200mV/div, AC-COUPLED
CH2 = VOUT, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 500mA/div
CH4
10µs/div
CH1 = VIN, 200mV/div, AC-COUPLED
CH2 = VOUT, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 1A/div
CH4
20µs/div
CH1 = VOUT, 5V/div
CH2 = VEN, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 200mA/div
SWITCH TURN-OFF TIME
CH1
CH2
CH3
CH4
1µs/div
CH1 = VOUT, 5V/div
CH2 = VEN, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 200mA/div
START-UP TIME
(TYPICAL USB APPLICATION)
CH1
CH2
FULL CURRENT LIMIT CHARGES CAPACITOR
RESISTOR LOAD CURRENT
CH3 SHORT-CIRCUIT
CURRENT LIMIT
CH4
1ms/div
VIN = 5V, RL = 15Ω, CL = 150µF
CH1 = VOUT, 5V/div
CH2 = VEN, 5V/div
CH3 = IIN, 500mA/div
CH4 = VOC, 5V/div
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX1607.PDF ] | |
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