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參數資料
| 型號： | LM26 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Adapter Interface Circuit |
| 中文描述： | 適配器接口電路 |
| 文件頁數： | 2/6頁 |
| 文件大小： | 130K |
| 代理商： | LM26 |
Pin Configuration
TSSOP-14
10130902
Ordering Information
Order Number
LM2601MTC
LM2601MTCX
Package Number
MTC14
MTC14
Package Type
TSSOP-14
TSSOP-14
Supplied As
*
Rail (94 Units/Rail)
Tape and Reel (2500
Units/Reel)
*
Partial Rails are available, there is no minimum order quantity. Tape and Reel is supplied as full reels only.
Pin Description
Pin No.
1
Name
Function
MPS DELAY
A capacitor between this pin and ground sets the delay of the MPS risetime. See MPS
DELAY description in Typical Application section.
Bi-directional logic pin. If driven high by an external source, indicates that a battery is
powering the power bus. If driven high by the AIC, indicates the adapter is powering the
bus. AIC cannot drive MPS low. If there is no valid adapter voltage present, the pin is not
an output but a high impedance logic input. The input is pulled-down via an internal 40k
resistor.
Logic input pin. Active high. Grants permission to the adapter to drive both the power bus
and the MPS signal.
Logic output pin. High when 12 volts
<
V
ADAPTER
<
17 volts. The output typically has 40k
pull-down resistor. The source current is not internally limited and the part can be
damaged if the output is shorted to ground when driven HIGH.
Logic output pin. High when V
ADAPTER
>
17 volts. The output typically has 40k pull-down
resistor. The source current is not internally limited and the part can be damaged if the
output is shorted to ground when driven HIGH.
IC ground pin.
Drives the gate of the disconnect P-ch FET.
Drives the gate of the backfeed P-ch FET.
Connection for current sense resistor to control BACKFEED.
2
MASTER POWER
SOURCE
3
ADAPTER
ENABLE
ADAPTER
PRESENT
4
5
CHARGER
PRESENT
9
GND
DISCONNECT
BACKFEED
DIRECTION
SENSE
PEAK SENSE
V
ADAPTER
10
11
12
13
14
Connection for current sense resistor to control DISCONNECT.
Power input pin. Output of AC adapter, auto adapter or airline adapter.
L
www.national.com
2
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