參數(shù)資料
型號(hào): LTC1153C
廠商: Linear Technology Corporation
英文描述: Auto-Reset Electronic Circuit Breaker
中文描述: 自動(dòng)復(fù)位電子斷路器
文件頁(yè)數(shù): 1/16頁(yè)
文件大?。?/td> 342K
代理商: LTC1153C
1
LTC1153
Auto-Reset
D
U
ESCRIPTIO
S
FEATURE
Electronic Circuit Breaker
I
Programmable Trip Delay: 15
μ
s to >100ms
I
Programmable Trip Current: 1mA to >20A
I
Programmbale Auto-Reset Time: 1ms to >10 sec.
I
4.5V to 18V Supply Range
I
Drives Low R
DS(ON)
N-Channel MOSFETs
I
Status Output Indicates Fault Condition
I
Thermal Trip with PTC Thermistor
I
8
μ
A I
Q
in Standby Mode
I
No External Charge Pump Capacitors
I
Available in 8-Pin SOIC
The LTC1153 electronic circuit breaker drives a low cost
N-channel MOSFET to interrupt power to a sensitive
electronic load in the event of an over-current condition.
The breaker remains tripped for a period of time set by an
external timing capacitor and then is automatically reset.
This cycle continues until the over-current condition is
removed, protecting both the sensitive load and the
MOSFET switch.
The trip current, trip delay time and auto-reset period are
programmable over a wide range to accommodate a
variety of load impedances. An active high shutdown input
is also provided and interfaces directly to a PTC thermistor
for thermal circuit breaking. An open-drain output is
provided to report breaker status to the
μ
P.
The LTC1153 is available in both 8-pin DIP and 8-pin SOIC
packages.
U
S
A
O
PPLICATI
I
Power Bus Circuit Breaker
I
SCSI Termination Power Protection
I
Regulator Over-Current Protection
I
Battery Short-Circuit Protection
I
DC Motor Stall Protection
I
Sensitive System Power Interrupt
U
A
O
PPLICATI
TYPICAL
Trip Delay Time
5V/1A Electronic Circuit Breaker with 1ms Trip Delay,
200ms Auto-Reset Period and 70
°
C Thermal Shutdown
CIRCUIT BREAKER CURRENT (A)
1
0.01
T
10
10
100
LTC1153 TA02
1
0.1
R
SEN
= 0.1
R
D
= 100k
C
D
= 0.01
μ
F
IN
C
T
STATUS
GND
VS
DS
G
SHUTDOWN
LTC1153
C
D
0.01
μ
F
R
D
100k
*R
SEN
0.1
IRLR024
51k
SENSITIVE
5V LOAD
**70°C
PTC
51k
5V
TO
μ
P
C
0.22
μ
F
Z5U
ON/OFF
ALL COMPONENTS SHOWN ARE SURFACE MOUNT.
IMS026 INTERNATIONAL MANUFACTURING SERVICE, INC. (401) 683-9700
RL2006-100-70-30-PT1 KEYSTONE CARBON COMPANY (814) 781-1591
*
**
LTC1153 TA01
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