LTC1840IGN#PBF Current Source-Sink D/A Converters by Analog Devices

Status: Production
Series: LTC1840
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC1840 is a fan controller with two 8-bit current output DACs, two tachometer interfaces, and four general purpose I/O (GPIO) pins. It operates from a single supply with a range of 2.7V to 5.75V. A current output DAC is used to control an external switching regulator, which controls the fan speed. A current output DAC and tachometer allow a controller to form a closed control loop on fan velocity. The GPIO pins can be used as digital inputs or open drain pull-down outputs.The part features a simple 2-wire I²C and SMBus compatible serial interface that allows communication between many devices. The interface includes a fault status register that reflects the state of the part and which can be polled to find the cause of a fault condition. Other operational characteristics of the part, such as DAC output currents, GPIO modes, and tachometer frequency, are also programmed through the serial interface. Two address pins provide nine possible device addresses.The BLAST pin is provided to force the DAC output currents to program the maximum regulator output voltages through a single pin and gate the operation of the serial access timer.

Where to Buy

Prices starting from US$4.88

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$5.15
11,725
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$6.16
200
in stock
Buy Now
Logo for element14
element14
from US$5.44
200
in stock
Buy Now
Logo for Farnell
Farnell
from US$5.05
200
in stock
Buy Now
Logo for Richardson RFPD
Richardson RFPD
from US$4.88
-
Buy Now

Features

Two 8-Bit Current DACs
DACs Guaranteed Monotonic
Known IC State on Power-Up
Serial Interface Watchdog Timer with Disable
2-Wire Serial Interface Compatible with I2C™ and SMBus
2 Programmable Fan Tachometer Interfaces
4 Programmable General Purpose I/Os
Small 16-Pin SSOP Package
Single 2.7V to 5.75V Supply Operation
Fault Output Signal
Status Register
Fan Blasting Function
Nine Addresses Using Two Programming Lines

Alternative Descriptions

2x Fan Cntr w/ 2-Wire Int | Analog Devices
Fan Controller, Dual, Nssop-16 | Newark Electronics
FAN CONTROLLER, DUAL, NSSOP-16 | element14
LINEAR ICS, OTHER | Richardson RFPD


LTC1840IGN#PBF Semiconductors - ICs by Linear Technology

IC FAN CONTROLLER 2-WIRE 16SSOP

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Motor Type -
No. of Outputs 2Outputs
Output Current 10mA
Output Voltage -
Driver Case Style SSOP
No. of Pins 16Pins
Supply Voltage Min 2.7V
Supply Voltage Max 5.75V
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1840
Controller Type Fan
Frequency 50Hz
Operating Temperature Range -40°C to +85°C
Output Current Max 103µA
Output Type Current
Supply Voltage Range 2.7V to 5.75V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC1840IGN#PBF?

Additional datasheets, footprints and schematics for LTC1840IGN#PBF are listed on our Part Details page. You can also find images and similar parts to LTC1840IGN#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC1840IGN#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC1840IGN#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC1840IGN#PBF fall under?

The LTC1840IGN#PBF is listed under Current Source-Sink D/A Converters.

Can I view similar or alternative parts?

You can view similar parts to LTC1840IGN#PBF when available in the Current Source-Sink D/A Converters range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LTC1840IGN#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC1840IGN#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LTC1840IGN#PBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for LTC1840IGN#PBF.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for LTC1840IGN#PBF often in real-time on the comparison pages.

What if I can't find stock of LTC1840IGN#PBF?

You can fill out our help required form which you can use to request a quote for LTC1840IGN#PBF from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay