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LTC1040CSWTRPBF, LTC1041, LTC1041CN

Table of contents:
Info of LTC1040CSWTRPBF
Info of LTC1041
Info of LTC1041CN

LTC1040CSWTRPBF, LTC1041, LTC1041CN Selling Leads, Datasheet

MFG:N/A Package Cooled:NA/ D/C:09+

LTC1040CSWTRPBF, LTC1041, LTC1041CN Picture

LTC1040CSWTRPBF, LTC1041, LTC1041CN Datasheet download

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Part Number: LTC1040CSWTRPBF

MFG: N/A

Package Cooled: NA/

D/C: 09+

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LTC1041 General Description

The LTC^®1041 is a monolithic CMOS BANG-BANG controller manufactured using Linear Technology's enhanced LTCMOS™ silicon gate process. BANG-BANG loops are characterized by turning the control element fully ON or fully OFF to regulate the average value of the parameter to be controlled. The SET POINT input determines the average control value and the DELTA input sets the deadband. The deadband is always 2 x DELTA and is centered around the SET POINT. Independent control of the SET POINT and deadband, with no interaction, is made possible by the unique sampling input structure of the LTC1041.

An external RC connected to the OSC pin sets the sampling rate. At the start of each sample, internal power to the analog section is switched on for » 80ms. During this time, the analog inputs are sampled and compared. After the comparison is complete, power is switched off. This achieves extremely low average power consumption at low sampling rates. CMOS logic holds the output continuously while consuming virtually no power.

To keep system power at an absolute minimum, a switched power output (V_P-P) is provided. External loads, such as
bridge networks and resistive dividers, can be driven by this switched output.

The output logic sense (i.e., ON = V⁺) can be reversed (i.e., ON = GND) by interchanging the VIN and SET POINT inputs. This has no other effect on the operation of the LTC1041.

LTC1041 Maximum Ratings

Total Supply Voltage (V⁺ to V ) ................................. 18V
Input Voltage ........................ (V+ + 0.3V) to (V 0.3V)
Operating Temperature Range
LTC1041C ............................................... 40to 85
LTC1041M (OBSOLETE) ........................ 55 to125
Storage Temperature Range .................. 55 to 150
Lead Temperature (Soldering, 10 sec)..... ............. 300
Output Short Circuit Duration ....................... Continuous

LTC1041 Features

· Micropower 1.5mW (1 Sample/Second)
· Wide Supply Range 2.8V to 16V
· High Accuracy
Guaranteed SET POINT Error ±0.5mV Max
Guaranteed Deadband ±0.1% of Value Max
· Wide Input Voltage Range V+ to Ground
· TTL Outputs with 5V Supply
· Two Independent Ground-Referred Control Inputs
· Small Size 8-Pin SO

LTC1041 Typical Application

· Temperature Control (Thermostats)
· Motor Speed Control
· Battery Charger
· Any ON-OFF Control Loop

LTC1041 Connection Diagram

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