DS1780E+ by Analog Devices

CPU Peripheral Monitor


The DS1780 is a highly integrated system instrumentation monitor that is ideal for use in personal computers or any microprocessor-based system. It monitors temperature (±2°C accuracy from -25°C to +100°C), six power supply voltages, and the speed of two fans. Fan speed can also be controlled using the DS1780's internal 8-bit DAC. All measurements are internally converted to a digital format for easy processing by the CPU. The DS1780 can be reset to its default power-up state through a remote reset function that has internal debounce and delay. The DS1780 also features an interrupt function that can be programmed to become active should any of the monitored parameters fall out of spec. For board-level testability, an internal NAND TREE function simplifies system design, and a chassis intrusion input enhances system security. Programming and data readout are accessed through a simple 2-wire interface with 2-bit addressability. The DS1780 power supply range of 2.8V to 5.75V allows parameter monitoring for 3V or 5V systems. The DS1780 is assembled in a 24-pin 173mil TSSOP package (DS1780E).

Where to Buy

Prices starting from US$3.01

Distributor Stock
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RS
from US$4.44
79
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Analog Devices
from US$3.40
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Newark Electronics
from US$4.90
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element14
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Farnell
from US$3.93
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Avnet Asia
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Features

±2°C accuracy (from -25°C to +100°C) 9-bit digital thermometer
Six 8-bit ADC channels for monitoring PC power supplies
Two tachometer inputs
8-bit DAC for fan speed control
Maskable system interrupt for all measured parameters (temperature, voltage, fan speed, intrusion detect)
Limit settings are user-programmable
Data is transferred over 2-wire/SMBus interface
Two address inputs allow up to four DS1780 to operate on a single bus
2.8V to 5.75V operating range
24-pin 173mil TSSOP package (DS1780E)

Specifications

Sensor Type Local
# Channels One
Interface 2-Wire/I2C/SMBus
Functions Fan MonitorVoltage Monitor
Accuracy (±°C) 2
Parasite Pwr. No
Temp. Thresh. Programmable
Temp. Resolution (bits) 9
Oper. Temp. (°C) -40 to +125
Package/Pins TSSOP/24
BudgetaryPrice (See Notes) 2.54


DS1780E+ Power Management ICs - PMIC by Analog Devices

MPU SUPERVISOR HEX 5.75V TSSOP-24

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

Specifications

Threshold Voltage -
No. of Supervisors / Monitors 6Monitors
Supply Voltage Min 2.8V
Supply Voltage Max 5.75V
Reset Type Active-Low
Digital IC Case TSSOP
No. of Pins 24Pins
Delay Time 45ms
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

CPU Peripheral Monitor | Analog Devices
Mpu Supervisor, Hex, 5.75V, Tssop-24 | Newark Electronics
MPU SUPERVISOR, HEX, 5.75V, TSSOP-24 | element14
CPU PERIPHERAL MONITOR TSSOP24 | RS
Temp Sensor Digital Serial (2-Wire) 24-Pin TSSOP Tube | Avnet Asia

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1780E+ ?

Additional datasheets, footprints and schematics for DS1780E+ are listed on our Part Details page. You can also find images and similar parts to DS1780E+ on this page.

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Is the DS1780E+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1780E+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and RS have stock available or on a lead time for DS1780E+ .

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