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參數資料
| 型號： | ADM1072ARQ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Dual, USB 2.0 Full/Standby Power Controller with Supply Steering |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁數： | 3/8頁 |
| 文件大小： | 88K |
| 代理商： | ADM1072ARQ |
ADM1072
–3–
Rev. PrE 1/02
Pin Configuration
ABSOLUT E MAX IMUM RAT INGS*
(T
A
= +25°C unless otherwise noted)
MAIN_IN to GND . . . . . . . . . . . . . . . . . . . . . . –0.3V to +6V
,
to GND . . . . . . . . . . . –0.3V to +6V
to GND . . . . . . . . . . . . . . . .+0.3 V to (V
IN
+ 0.3V)
Maximum Switch Current
Full Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A
Standby Power Mode . . . . . . . . . . . . . . . . . . . . . . . . 200mA
Continuous Power Dissipation (T A = +70
o
C) . . . . . 667mW
QSOP (derate 8.3mW/
o
C above +70
o
C)
Operating T emperature Range
Industrial (A Version) . . . . . . . . . . . . . . . –40°C to +85°C
Storage T emperature Range . . . . . . . . . . . –65°C to +150°C
Lead T emperature (Soldering, 10 sec) . . . . . . . . . . . +300°C
*T his is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation sections of this speci-
fication is not implied. Exposure to absolute maximum rating conditions for
extended periods of time may affect reliability.
PIN FUNCT ION DESCRIPT ION
Pin
Mnemonic
Function
2, 3, 14, 15
MAIN_IN
Input to MAIN P-channel MOSFET source (both channels). Bypass MAIN_IN with a
22μF capacitor to ground.
5, 12
ST BY_IN
Input to Standby P-channel MOSFET source (both channels) and supply to chip
circuitry. Bypass ST BY_IN with a 4.7μF capacitor to ground.
1, 4
OP1
Output from channel 1, P-channel MOSFET drains. Bypass OP1 with a 120μF capacitor
to ground.
13, 16
OP2
Output from channel 2, P-channel MOSFET drains. Bypass OP2 with a 120μF capacitor
to ground.
6
Open-Drain Digital Output.
exceeded for 10mS or the die temperature exceeds +150
o
C. During startup,
remains low for the turn-on time.
goes low when the channel 1 current limit is
7
Open-Drain Digital Output.
exceeded for 10mS or the die temperature exceeds +150
o
C. During startup,
remains low for the turn-on time.
goes low when the channel 2 current limit is
8
GND
Ground pin for all chip circuits.
9
ST BY
Digital Input. Active high standby mode input. ST BY = 0 sets normal operating mode
with 500mA current limit. ST BY = 1 sets standby mode with 100mA current limit.
10
Digital Input. Active-low switch enable for channel 2 (logic 0 turns the switch on).
11
Digital Input. Active-low switch enable for channel 1 (logic 0 turns the switch on).
T HERMAL C HARAC T ERIST IC S
16-Pin QSOP Package:
q
JA
= 105°C/Watt,
q
JC
= 40°C/Watt
ORDERING GUIDE
T emperature
Range
Package
D escription
Package
Option
Model
ADM1072ARQ
-40°C to +85°C
16-Pin QSOP
RQ-16
Package
ADM1072
TOP VIEW
(Not to Scale)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OP1
MAIN_IN
MAIN_IN
OP1
STBY_IN
GND
OP2
MAIN_IN
MAIN_IN
OP2
STBY_IN
STBY
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