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參數資料
| 型號： | MAX1601EAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Dual-Channel CardBus and PCMCIA Power Switches with SMBus⑩ Serial Interface |
| 中文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO28 |
| 封裝： | 0.200 INCH, SSOP-28 |
| 文件頁數： | 9/16頁 |
| 文件大?。?/td> | 190K |
| 代理商： | MAX1601EAI |
M
Dual-Channel CardBus and PCMCIA
Power S witc hes with S MBus S erial Interfac e
_______________________________________________________________________________________
9
______________________________________________________________Pin Desc ription
NAME
FUNCTION
1, 25
GND
Ground
2, 3,
26, 27
N.C.
No internal connection
PIN
4
12INA
+12V Supply Voltage Input, internally connects to channel A VPP switch. Tie to VPPA if not used.
7, 22, 24
VCCA
Channel A VCC Outputs
6, 8, 10
VX
VX Supply-Voltage Inputs. VX pins must be connected together. Input range is 3V to 5.5V. VX is
normally connected to 5V.
5
VPPA
Channel A VPP Output
13
ADR
Address Input, sets SMBus address location. See Table 1 for address selection.
12
12INB
+12V Supply Voltage Input, internally connects to channel B VPP switch. Tie to VPPB if not used.
11
VPPB
Channel B VPP Output
9, 18, 20
VCCB
Channel B VCC Outputs
15
SMBCLK
SMBus Clock Input
14
SMBSUS
SMBus Suspend-Mode Control Input. The device will execute commands previously stored in
the normal-mode register if
SMBSUS
is high, or will execute commands previously stored in the
suspend-mode register if
SMBSUS
is low.
16
SMBDATA
SMBus Data Input/Output, open drain
19, 21, 23
VY
VY Supply-Voltage Inputs. VY pins must be connected together. Input range is 3V to 5.5V. VY is
normally connected to 3V.
17
SMBALERT
Fault-Detection Interrupt Output.
SMBALERT
goes low if either channel VCC or VPP switch is
current limiting or undervoltage lockout, or if the thermal protection circuit is activated.
SMBALERT
is an open-drain output that requires an external pull-up resistor.
28
VL
Logic Supply-Voltage Inputs. Connect to the +3.3V or +5V host system supply. VL can be sup-
plied via the output of a CMOS-logic gate to produce an overriding shutdown. When used as a
shutdown input, VL should have a 1k
series resistor with a 0.1μF capacitor to ground (Figure 2).
Note that VL must be greater than undervoltage lockout for any switches to be turned on.
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