Purchase LM1042, In-stock LM1042 From SeekIC.
Part Number: LM1042
Description: The LM1042 uses the thermal-resistive probe technique to measure the level of non-flammable fluids. An...
- Table of contents:
LM1042
-
Suppliers
DataSheet
General Description
LM1042 General Description
The LM1042 uses the thermal-resistive probe technique to measure the level of non-flammable fluids. An output is provided proportional to fluid level and single shot or repeating measurements may be made. All supervisory requirements to control the thermal-resistive probe, including short and open circuit probe detection, are incorporated within the device. A second linear input for alternative sensor signals may also be selected.
LM1042 Maximum Ratings
Supply Voltage VCC ....................................................................32V
Voltage at Pin 8 ..........................................................................32V
Positive Peak Voltage (Pins 6, 8, 3) (Note 1)
10 ms 2A ....................................................................................50V
Output Current Pin 4, (I4)(sink) ..............................................10 mA
Output Current Pin 11 (source) ..............................................25 mA
Output Current Pin 16 .........................................................±10 mA
Operating Temperature Range ..................................-40 to +80
Storage Temperature Range ...................................-55 to +150
Lead Temperature (Soldering 10 sec.) ....................................260
Package Power Dissipation
TA = 25 (Note 8) 1.8W
Device Power Dissipation ........................................................0.9W
Voltage at Pin 8 ..........................................................................32V
Positive Peak Voltage (Pins 6, 8, 3) (Note 1)
10 ms 2A ....................................................................................50V
Output Current Pin 4, (I4)(sink) ..............................................10 mA
Output Current Pin 11 (source) ..............................................25 mA
Output Current Pin 16 .........................................................±10 mA
Operating Temperature Range ..................................-40 to +80
Storage Temperature Range ...................................-55 to +150
Lead Temperature (Soldering 10 sec.) ....................................260
Package Power Dissipation
TA = 25 (Note 8) 1.8W
Device Power Dissipation ........................................................0.9W
LM1042 Features
`Selectable thermal-resistance or linear probe inputs
`Control circuitry for thermal-resistive probe
` Single-shot or repeating measurements
`Switch on reset and delay to avoid transients
`Output amplifier with 10 mA source and sink capability
` Short or open probe detection
`+50V transient protection on supply and control input
`7.5V to 18V supply range
` Internally regulated supply
` -40 to +80 operation
LM1042 Typical Application
A typical automotive application circuit is shown in Figure 11 where the probe selection signal is obtained from the oil pressure switch. At power up (ignition on) the oil pressure switch is closed and pin 8 is held low by R4 causing a probe 1 (oil level) measurement to be made. Once the engine has started the oil pressure switch opens and D1 pulls pin 8 high changing over to the second auxiliary probe input.
The capacitor C5 holds pin 8 high in the event of a stalled engine so that a second probe 1 measurement can not occur in disturbed oil. Non-automotive applications may drive pin 8 directly with a logic signal.
LM1042
PDF/DataSheet Download
- Datasheet: LM1042
- File Size: 175042 KB
- Manufacturer: NSC [National Semiconductor]
- Click here to Download
- ·LM10
- LINER [Linear Technology]
- Low Power Op Amp and Reference
- 805461 KB
- ·LM1001-7R
- POWER-ONE [Power-One]
- 50 Watt AC-DC Converters
- 150434 KB
- ·LM101
- NSC [National Semiconductor]
- Operational Amplifiers
- 521472 KB
- ·LM101A
- LINER [Linear Technology]
- Operational Amplifiers
- 521472 KB
- ·LM101AD
- STMICROELECTRONICS [STMicroelectronics]
- SINGLE OPERATIONAL AMPLIFIER
- 73655 KB
- ·LM101AFK
- TI [Texas Instruments]
- HIGH-PERFORMANCE OPERATIONAL AMPLIFIERS
- 73655 KB
- ·LM101AH
- LINER [Linear Technology]
- Operational Amplifiers
- 397624 KB
- ·LM101AH/883
- NSC [National Semiconductor]
- Operational Amplifiers
- 521472 KB
LM1042 Relative Products
LM104
The LM104 series are precision voltage regulators which can be programmed by a single external resistor to supply any voltage from 40V down to zero while operating from a single unregulated supply. They can also provide 0.01-percent regulation in circuits us...
LM1038
The LM1038 is a dual, electronically controlled, four-channel analog switch with an internal muting facility. Its features make it ideal for stereo source selection in audio equipment and for use in a wide range of industrial, automotive, multiplexing or sam...
LM1036N/NOPB
IC TONE/VOL/BAL DUAL DC 20-DIP
-
LM1036N
IC TONE/VOL/BAL DUAL DC 20-DIP
LM1036MX/NOPB
IC TONE/VOL/BAL DUAL DC 20-SOIC
-
LM1036M/NOPB
IC TONE/VOL/BAL DUAL DC 20-SOIC
Hotspot Suppliers Product
SM06B-SHLS-TF(LF)(SN)
Price: 0.35-0.38 USD
disconnectable crimp style connector, 1.0mm pitch, 1.0A, 50V, Low insertion force
ES6425
Price: 4.5-5 USD
decoder, QFP, 16MB
EPM3032ATC44-10N
Price: 1.1-1.15 USD
low–cost, high–performance device, QFP44, –2.0 to 5.75 V, CMOS EEPROM, 227.3 MHz
LH0101AK-MIL
Price: 40-80 USD
power operational amplifier, FET input, internal compensation, programmable power supply
IS61LV51216-10TLI
Price: 9.5-12 USD
high-speed, 8M-bit, static RAM, TSOP-44, 0.5V to VDD+0.5V, Less than 5 mA
MC908AZ60ACFUE
Price: 2-4 USD
8-bit microcontroller unit, QFP, –0.3 to +6.0 V, 100 mA, M68HC08 Architecture, Clock Generator Mod...
EMZE350ADA221MJA0G
Price: 0.2-0.35 USD
surface mount aluminum electrolytic capacitor, SMD, 6.3 to 50Vdc, 10 to 470MF
BCM3440KQTE
Price: 1.95-2.1 USD
ADVANCED MODULATION SATELLITE RECEIVER QFP BCM3440KQTE
TJA1054AT
Price: 0.1-0.15 USD
fault-tolerant CAN transceiver, 14-SOIC, 5.25V, 125KBd, TJA1054AT
TLP371
Price: 0.45-0.6 USD
GaAs ired & photo.transistor, DIP6, 1 A, Solid State Relay, Household Use Equipment
AT45DB321D-SU
Price: 2.5-4 USD
32-megabit, 2.7-volt DataFlash, SOP8, Industrial Temperature Range, Green Packaging Options
QD-NVS-110MT-N-A3
Price: 40-61.5 USD
comupter IC, QD-NVS-110MT-N-A3, BGA
