LTC1153CN8 Linear Technology, LTC1153CN8 Datasheet

IC ELECTRNC CIRCUIT BREAKER 8DIP

LTC1153CN8

Manufacturer Part Number
LTC1153CN8
Description
IC ELECTRNC CIRCUIT BREAKER 8DIP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1153CN8

Applications
Overvoltage Protection, Circuit Breaker
Current - Supply
180µA
Voltage - Supply
4.5 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1153CN8
Manufacturer:
LT
Quantity:
5 510
Part Number:
LTC1153CN8
Manufacturer:
MOT
Quantity:
5 510
Part Number:
LTC1153CN8
Manufacturer:
LT/凌特
Quantity:
20 000
A
FEATURE
TYPICAL
PPLICATI
Power Bus Circuit Breaker
SCSI Termination Power Protection
Regulator Over-Current Protection
Battery Short-Circuit Protection
DC Motor Stall Protection
Sensitive System Power Interrupt
Programmable Trip Delay: 15 s to >100ms
Programmable Trip Current: 1mA to >20A
Programmbale Auto-Reset Time: 1ms to >10 sec.
4.5V to 18V Supply Range
Drives Low R
Status Output Indicates Fault Condition
Thermal Trip with PTC Thermistor
8 A I
No External Charge Pump Capacitors
Available in 8-Pin SOIC
TO P
**
ON/OFF
*
200ms Auto-Reset Period and 70 C Thermal Shutdown
5V/1A Electronic Circuit Breaker with 1ms Trip Delay,
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
C
0.22 F
Z5U
Q
T
5V
in Standby Mode
51k
S
A
DS(ON)
IN
C
STATUS
GND
O
PPLICATI
T
U
LTC1153
SHUTDOWN
S
N-Channel MOSFETs
DS
VS
**70°C
G
PTC
O
U
C
0.01 F
D
100k
51k
R
D
SENSITIVE
5V LOAD
LTC1153 • TA01
IRLR024
*R
0.1
SEN
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 P.
The LTC1153 is available in both 8-pin DIP and 8-pin SOIC
packages.
D
ESCRIPTIO
0.01
Electronic Circuit Breaker
0.1
10
1
1
CIRCUIT BREAKER CURRENT (A)
U
Trip Delay Time
10
R
R
C
D
SEN
D
= 0.01 F
= 100k
Auto-Reset
LTC1153 • TA02
= 0.1
LTC1153
100
1

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LTC1153CN8 Summary of contents

Page 1

FEATURE S Programmable Trip Delay >100ms Programmable Trip Current: 1mA to >20A Programmbale Auto-Reset Time: 1ms to >10 sec. 4.5V to 18V Supply Range Drives Low R N-Channel MOSFETs DS(ON) Status Output Indicates Fault Condition Thermal Trip ...

Page 2

... Drain Sense Threshold Voltage SEN I Drain Sense Input Current SEN Current (Any Pin).................................................. 50mA Operating Temperature LTC1153C .............................................. Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec.)................ 300 ORDER PART NUMBER TIMING CAP LTC1153CN8 STATUS 3 GND 4 8-LEAD PLASTIC SOIC T = 100 C, JMAX V = 4.5V to 18V CONDITIONS ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER V – V Gate Voltage Above Supply GATE S V Status Output Low Voltage STAT I Status Output Leakage Current STAT t Turn-ON Time ON t Turn-OFF Time OFF t Minimum Trip Delay TD t Shutdown ...

Page 4

LTC1153 W U TYPICAL PERFOR A Input Threshold Voltage 2.4 2.2 2.0 1.8 1 1.4 1.2 V OFF 1.0 0.8 0.6 0 SUPPLY VOLTAGE (V) LTC1153 • TPC04 MOSFET Gate Turn-ON Time 1000 ...

Page 5

W U TYPICAL PERFOR A Shutdown Threshold Voltage 2.4 2.2 2.0 1.8 1 18V S 1.O 0.8 0.6 0.4 –50 – 100 125 TEMPERATURE (°C) LTC1153 • TPC13 ...

Page 6

LTC1153 CTIO S Drain Sense Pin The drain sense pin is compared against the supply pin voltage. If the voltage at this pin is more than 100mV below the supply pin, the input latch will ...

Page 7

TEST CIRCUITS 5V 1 INPUT 51k 0.1 F LTC1153 Z5U 3 STATUS G STATUS 4 GND SD SHUTDOWN U LTC1153 OPERATIO The LTC1153 is an electronic circuit breaker with built-in MOSFET gate charge ...

Page 8

LTC1153 U LTC1153 OPERATIO Controlled Gate Rise and Fall Times When the input is switched ON and OFF, the gate is charged by the internal charge pump and discharged in a controlled manner. The charge and discharge rates have been ...

Page 9

PPLICATI FOR ATIO should be connected across the load, as shown in Figure 2, to safely divert the stored energy. Capacitive Loads Large capacitive loads, such as complex electrical sys- tems with large bypass ...

Page 10

LTC1153 PPLICATI S I FOR ATIO The Y axis of the graph is normalized to one RC time constant. The X axis is normalized to the set current. (The set current is defined as the current ...

Page 11

PPLICATI S I FOR ATIO Five volt linear regulators with small output capacitors are the most difficult to protect as they can “switch” from a voltage mode to a current limited mode very quickly. The large ...

Page 12

LTC1153 O U TYPICAL A PPLICATI 12V Lamp Driver/Circuit Breaker with Auto-Reset 12V 10k 0.33 F LTC1153 STATUS G GND SD 5V ON/OFF 51k 0.47 F Z5U STATUS Logic Controlled Battery Switch with ...

Page 13

O U TYPICAL A PPLICATI “4 Cell-to-5V” Regulator with 2A Current Limit, Auto-Reset, + 4-CELL BATTERY PACK ON/OFF 51k 0.47 F STATUS 12V Step-Up Regulator with Soft Start, Auto-Reset Circuit Breaker (Pre-Regulator 470 F ON/OFF IN V 51k ...

Page 14

LTC1153 TYPICAL PPLICATI Auto-Reset Circuit Breaker with Programmable (1-6) Number of ON/OFF LOAD CARRY 74C193 ABCDGND INPUTS* *SET WITH ...

Page 15

... TYP Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights Package 8-Lead Plastic Lead 0.130 ± ...

Page 16

... Linear Technology Korea Branch Namsong Building, #505 Itaewon-Dong 260-199 Yongsan-Ku, Seoul Korea Phone: 82-2-792-1617 FAX: 82-2-792-1619 SINGAPORE Linear Technology Pte. Ltd. 101 Boon Keng Road #02-15 Kallang Ind. Estates Singapore 1233 Phone: 65-293-5322 FAX: 65-292-0398 World Headquarters Linear Technology Corporation 1630 McCarthy Blvd. ...

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