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參數(shù)資料
| 型號： | AAT4650IHS-T1 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 5V/3V PC Card Power Switch |
| 中文描述： | 5V/3V PC卡電源開關(guān) |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 428K |
| 代理商： | AAT4650IHS-T1 |
SmartSwitch
General Description
The AAT4650 SmartSwitch is a single channel PC
Card (PCMCIA) power switch. It is used to select
between two different voltage inputs, each between
2.7V and 5.5V. An internal switch powers the cir-
cuitry from whichever input voltage is higher. The
device's output, V
CC
, is slew rate controlled and cur-
rent limited, in compliance with PC Card specifica-
tions. The current limit response time to a short cir-
cuit is typically 1μs. The internal P-Channel MOS-
FET switches are configured to break before make,
that is, both switches cannot be closed at the same
time. Controlled by a 2 bit parallel interface, the four
states for V
CC
are V
CC
5, V
CC
3, Hi-impedance, or
Ground. When in the ground state, V
CC
is pulled to
ground by a 5k
resistor. An open drain FAULT out-
put is asserted during over-current conditions.
During power up slewing, FAULT also signals that
V
CC
is out of tolerance. An internal over temperature
sensor forces V
CC
to a high impedance state when
an over-temperature condition exists. Quiescent
current is typically a low 15μA, as long as I
CC
is less
than approximately 500mA. Above this load current,
the quiescent current increases to 200μA.
The AAT4650 is available in 8-pin SOP and
TSSOP packages specified over -40 to 85°C.
Features
2.7V to 5.5V Input voltage range
85m
(5V) typical R
DS(ON)
Low quiescent current 15μA (typ)
Reverse-blocking switches
Short-circuit protection
Over-temperature protection
FAULT flag output
Temp range -40 to 85°C
8 pin SOP or TSSOP package
Applications
Notebook Computer
PDA, Subnotebook
Power Supply Multiplexer Circuit
AAT4650
5V/3V PC Card Power Switch
Typical Application
C
OUT
0.1
μ
F
V
CC
5
V
CC
3
CTL1
CTL0
FAULT
GND
C
IN5
1
μ
F
C
IN3
1
μ
F
V
CC
AAT4650
8
5
3
2
4
1
6,7
V
CC
5
V
CC
3
GND
GND
V
CC
CTL1
CTL0
FAULT
P
4650.2001.
10
.0.9
3
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT4650 | 5V/3V PC Card Power Switch |
| AAT4650IHS-B1 | 5V/3V PC Card Power Switch |
| AAT4670IAS-T1 | Dual-Input, Dual-Output Load Switches |
| AAT4670IHS-T1 | Dual-Input, Dual-Output Load Switches |
| AAT4670 | Dual-Input, Dual-Output Load Switches |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT4651 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:5V/3V PC Card Power Switch |
| AAT4651IAS-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:5V/3V PC Card Power Switch |
| AAT4651IHS-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:5V/3V PC Card Power Switch |
| AAT4670 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Dual-Input, Dual-Output Load Switches |
| AAT4670_06 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Dual-Input, Dual-Output Load Switch |
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