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PJ79818

Signal Chain ICs

PJ79818

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Product Description

Current and Power Monitor with I2C Compatible Interface

Product Features

Operation Voltage: 3V to 5.5V
12Bit Resolution Delta-Sigma ADC
Local Temperature Accuracy:(-25°C to 100°C) ±1°C(Max.) , (-40°C to 125°C) ±1.5°C(Max.)
2.56V Internal VREF or Variable External VREF
WATCHDOG Window ComparatorswithStatus and Mask Registers of All MeasuredValues
Independent Registers for StoringMeasuredValues
INT Output Notifies Microprocessor of ErrorEvent
I2C/SMBus Serial Bus Interface Compatibility: 9 Selectable Addresses , TIME-OUT Reset Function to Prevent I2CBusLock-Up
Individual Channel ShutdowntoLimit PowerConsumption
Deep Shutdown Mode to MinimizePowerConsumption
Temperature Range: -40°Cto125°C

Applications

Communications Infrastructure Thermal and Hardware Server Monitors System Monitors Industrial and Medical System

Product Introduction

Product Specifications
Consultation List

Product Introduction

PJ79818 is a system monitor chip with I2C interface. The PJ79818 include a local temperature sensor, 8-channel analog input. An onboard temperature sensor, combined with WATCHDOG window ____ comparators, and an interrupt output pin INT allow easy monitoring and out-of-range alarms for every channel. A high performance internal reference is also available to provide for a complete solution in the most difficult operating conditions. Analog input can be used for voltage monitor, like connecting analog output temperature sensor or monitor power supply voltage. The PJ79818 supports standard mode ( 100kHz) and fast mode (400kHz) I2C interface. Available Package: TSSOP-16P package

Product Specifications

Recommended Operating Conditions

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Parameter
Symbol
Min
Max
Unit
Supply Voltage
VCC
3
5.5
V
Voltage on SCL, SDA, A1, A0 , nINT
-
-0.05
5.5
V
Operation Temperature Range
TA
-40
125
°C

Absolute Maximum Ratings

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Parameter
Symbol
Value
Unit
Supply Voltage
VCC to GND
-0.3 to 6.0
V
SDA, SCL, A0, A1, INT Voltage
-
-0.3 to 6.0
V
IN0-IN7, VREF Voltage
-
-0.3 to VCC+0.3
V
Input Current at Any Pin2
-
±5
mA
Package Input Current
-
±30
mA
Storage temperature Range
TSTG
-65 to 150
°C
Maximum Junction Temperature
TJMAX
150
°C
Lead Temperature(Soldering, 10 Seconds)
TLEAD
260
°C

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