MAX6693UP9A+ Maxim Integrated Products, MAX6693UP9A+ Datasheet - Page 8

• Manufacturer Part Number: MAX6693UP9A+
• Description: IC TEMP MONITOR 7CH 20-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6693UP9A+

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Buffer, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7-Channel Precision Temperature Monitor
with Beta Compensation
The MAX6693 operates at different operating-current
levels depending on how many external channels are in
use. Assume that I
the MAX6693 is converting the remote channel 1 and
I
verting the other channels. For the MAX6693 with
remote channel 1 and n other remote channels con-
nected, the operating current is:
Figure 1. Internal Block Diagram
8
CC2
_______________________________________________________________________________________
is the operating current when the MAX6693 is con-
I
CC
= (2 x I
DXP1
DXN1
DXP2
DXN2
DXP3
DXN3
DXP4
DXN4
DXP5
DXN5
DXP6
DXN6
Operating-Current Calculation
CC1
CC1
+ I
is the operating current when
CC2
SOURCES,
COMPEN-
CURRENT
AND MUX
+ n x I
SATION
BETA
CC2
)/(n + 3)
BUFFER
INPUT
V
CC
REF
SMBCLK
INTERFACE
From a software perspective, the MAX6693 appears as
a series of 8-bit registers that contain temperature mea-
surement data, alarm threshold values, and control bits.
A standard SMBus-compatible, 2-wire serial interface is
used to read temperature data and write control bits
and alarm threshold data. The same SMBus slave
address also provides access to all functions.
SMBus
ADC
SMBDATA
ALERT RESPONSE ADDRESS
REMOTE TEMPERATURES
LOCAL TEMPERATURES
SMBus Digital Interface
OVERT THRESHOLD
ALERT THRESHOLD
COMMAND BYTE
MAX6693
REGISTER BANK
ALARM
ALU
OVERT
ALERT
STBY