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參數(shù)資料
| 型號(hào)： | CM3512 |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | Dual USB Overcurrent 1.2A Switches with Independent Controls |
| 中文描述： | 雙USB過(guò)電流1.2A的開(kāi)關(guān)，可獨(dú)立控制 |
| 文件頁(yè)數(shù)： | 3/11頁(yè) |
| 文件大?。?/td> | 137K |
| 代理商： | CM3512 |
CALIFORNIA MICRO DEVICES
Pin Functions
V
CC
is the power source.
V
OUT1
provides the power for the first load. The internal
MOSFET switches are designed for very low voltage drops
from the voltage input pins at their full rated currents.
Preliminary
CM3512
2003 California Micro Devices Corp. All rights reserved
11/10/03
430 N. McCarthy Blvd, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
3
V
OUT2
provides the power for the second load. The internal
MOSFET switches are designed for very low voltage drops
from the voltage input pins at their full rated currents.
Current loads of up to 1200mA are allowed. Current
loads above 1200mA may cause the constant-current
limiting circuit to operate, thereby reducing the output
voltage.
Continuous over-current loads will cause the part’s
internal temperature to rise. If the internal temperature
exceeds 150’C then any switch that is in overcurrent
mode will be immediately turned off. Any switch that is
not in overcurrent mode will remain on – it will not be
affected by the over-temperature detection. Once the
part has cooled to 125’C then the switch or switches
that were in overcurrent mode will be automatically
turned on again.
During the cold-start interval when the input is initially
applied, internal circuitry provides a soft turn-on for the
switch, which limits peak in-rush current.
EN1#, EN2#
are the active low logic input pins that
are used to control the power switches. Both
switches are independent. Set EN1# and EN2# high
(to >2V) to deselect V
OUT1
and V
OUT2
respectively, and
set EN1# and EN2# low (to <0.8V) to select V
OUT1
and V
OUT2
respectively.
OC1#, OC2#
are independent active low open-
drain outputs, indicating an overcurrent fault condition
has been detected at V
OUT1
or V
OUT2
. There is a built-
in 10msec (min.) fault blanking delay after the
overcurrent fault condition has been detected, before
these outputs become active. The OC# outputs
become inactive only when both the overcurrent
condition stops and when the voltage drop across the
switch is less than 1V. External pull-up resistors of
10k - 100k are required if the OC# outputs are used.
Because they are open-drain, the two OC# outputs
can be shorted together to make one OC# signal.
GND
is the negative reference for all voltages.
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
Symbol Description
GND
Negative reference for all voltages.
V
CC
Power supply input.
EN1#
Active low Enable pin for V
OUT1
.
EN2#
Active low Enable pin for V
OUT2
.
OC2#
Active low when
V
OUT2
is in overcurrent mode.
V
OUT2
Output voltage #2.
V
OUT1
Output voltage #1.
OC1#
Active low when
V
OUT1
is in overcurrent mode.
STANDARD PART ORDERING INFORMATION
Pins
Package
Ordering Part Number
1
Part Marking
8
SOIC
CM3512-04SN
CM3512-04SN
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CM3512-04SN | Dual USB Overcurrent 1.2A Switches with Independent Controls |
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| CM3513-04SN | USB 2.4A Overcurrent Switch |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CM3512-04SN | 制造商:CALMIRCO 制造商全稱(chēng):California Micro Devices Corp 功能描述:Dual USB Overcurrent 1.2A Switches with Independent Controls |
| CM3513 | 制造商:CALMIRCO 制造商全稱(chēng):California Micro Devices Corp 功能描述:USB 2.4A Overcurrent Switch |
| CM3513-04SN | 制造商:CALMIRCO 制造商全稱(chēng):California Micro Devices Corp 功能描述:USB 2.4A Overcurrent Switch |
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| CM352 | 制造商:CML 制造商全稱(chēng):Chicago Miniature Lamp,inc 功能描述:G-3 1/2 Miniature 2 Pin Base |
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