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參數(shù)資料
| 型號： | CM3513-04SN |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | USB 2.4A Overcurrent Switch |
| 中文描述： | 過流開關(guān)的USB 2.4? |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 141K |
| 代理商： | CM3513-04SN |
CALIFORNIA MICRO DEVICES
Pin Functions
V
CC
is the power source.
Pins 2 & 3 must be connected together externally
V
OUT
provides the power for the loads. The internal
MOSFET switch is designed for very low voltage drops
from the voltage input pins at the full rated current.
Preliminary
CM3513
Note: This is a preliminary datasheet only. Data subject to change at any time.
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
Pins 6, 7 & 8 must be connected together externally.
Current loads of up to 2.4A are allowed. Current loads
above 2.4A may cause the constant-current limiting
circuit to operate – 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 the switch immediately turns off.
Once the part has cooled to 125’C then the switch
automatically turns 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.
EN#
is the active low logic input pin that is used to
control the power switch. Set EN# high (>2V) to
deselect V
OUT
, and set EN# low (<0.8V) to select
V
OUT
.
OC#
is an active low open-drain output voltage,
indicating an overcurrent fault condition has been
detected at V
OUT
. There is a built-in 10msec (min.)
fault blanking delay after the overcurrent fault
condition has been detected, before this output
becomes active low. The OC# output deasserts only
when both the overcurrent condition stops and when
the voltage drop across the switch is less than 1V. An
external pull-up resistor of 10k - 100k is required if
the OC# output is used.
GND
is the negative reference for all voltages.
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
Symbol Description
GND
Negative reference for all voltages.
V
CC
Power Primary High current Positive supply input.
V
CC
Power supply input connected to pin 2
EN#
Active low enable pin
OC#
Active low when V
OUT
is in overcurrent mode. External pull-up resistor required.
V
OUT
Output connected to pins 7 and 8
V
OUT
Output connected to pins 6 and 8
V
OUT
Output connected to pins 6 and 7
STANDARD PART ORDERING INFORMATION
Pins
Package
Ordering Part Number
1
Part Marking
8
SOIC
CM3513-04SN
CM3513-04SN
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
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