|
|
PDF ADM1072 Data sheet ( Hoja de datos )
| Número de pieza | ADM1072 | |
| Descripción | Dual/ USB 2.0 Full/Standby Power Controller with Supply Steering | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ADM1072 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
=
Dual, USB 2.0 Full/Standby Power
Controller with Supply Steering
Preliminary Technical Data
ADM1072
FEATURES
500mA Load Current (100mA in Standby Mode)
135m⍀ On Resistance
Switchable Current Limit
50µA Typical Quiescent Current
10nA Typical Shutdown Current
40nA Typical Switch Off Leakage
Short-Circuit Protection
Thermal Shutdown
FLT Outputs
Small, 16-Pin QSOP Package
APPLICATIONS
Desktop Computers
Palmtop Computers
Notebook Computers
Hand-Held Instruments
Universal Serial Bus (USB)
GENERAL DESCRIPTION
The ADM1072 is a logic controlled, dual P-channel switch
with low on resistance and a built-in current limiter, capable of
sourcing up to 1A from supply voltages between 2.7V and
5.5V. In addition to logic inputs that switch each channel on
and off, the device has a standby input that switches the output
current limit, making it ideal for use with USB peripherals. In
normal operating mode and Standby mode the output current
is typically limited to 500mA and 100mA respectively, as
outlined by the USB2.0 Specification. This allows the system
power supply to be protected against short-circuits and surge
currents in peripheral USB devices powered via the ADM1072.
Over-current and over-temperature conditions are signalled by
a fault output (FLT) for each channel.
The ADM1072 also offers low quiescent current of typically
50µA and shutdown current of typically 10nA.
MAIN_IN
(2.7V TO 5.5V)
22µF
2
3
14
15
1A MAIN FET
1A MIRROR
FET
STBY_IN
(2.7V TO
5.5V)
4.7µF
5
12
TO
CHANNEL 2
0.2A MAIN FET
0.2A
MIRROR FET
MIRROR
AMPLIFIER
1
4
120µF
OP1
O N 1 11
STBY 9
O N 2 10
CONTROL
LOGIC
UNDERVOLTAGE
SENSOR
CURRENT
LIMIT
AMPLIFIER
ADM1072
TEMPERATURE
SENSOR
OVERTEMP
1.24V
BANDGAP
REFERENCE
CURRENT
SETTING
RESISTOR
TO
CHANNEL
2
TO TO
CHANNEL
CHANNEL
22
CHANNEL 2 IS IDENTICAL TO CHANNEL 1
VPULLUP
0 TO
5.5V
FLT1
6
RPULLUP
10k⍀ TO
100k⍀
VPULLUP
0 TO 5.5V
GND
8
RPULLUP
10k⍀ TO 100k⍀
FLT2
7
13 OP2
16
120µF
Rev. PrE 1/02
FUNCTIONAL BLOCK DIAGRAM
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
1 page  
Typical Performance Curves
A WDAAITTINAG
Figure 7. Normalized Output Current vs. Output Voltage
A WDAAITTINAG
Figure 8. Turn-On Time vs. Temperature
A WDAAITTINAG
Figure 9. Turn-Off Time vs. Temperature
ADM1072
A WDAAITTINAG
Figure 10. Fast Current-Limit Response
A WDAAITTINAG
Figure 11. Slow Current-Limit Response
A WDAAITTINAG
Figure 12. Load Transient Response
Rev. PrE 1/02
–5–
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet ADM1072.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADM1070 | -48 V Hot Swap Controller | Analog Devices |
| ADM1072 | Dual/ USB 2.0 Full/Standby Power Controller with Supply Steering | Analog Devices |
| ADM1073 | Full-Feature 48 V Hot Swap Controller | Analog Devices |
| ADM1075 | -48V Hot Swap Controller and Digital Power Monitor | Analog Devices |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |