MAX6602UE9A+ Maxim Integrated Products, MAX6602UE9A+ Datasheet

IC TEMP MONITOR 5CH 16-TSSOP

MAX6602UE9A+

Manufacturer Part Number
MAX6602UE9A+
Description
IC TEMP MONITOR 5CH 16-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6602UE9A.pdf (18 pages)

Specifications of MAX6602UE9A+

Function
Temp Monitoring System (Sensor)
Topology
ADC, Buffer, Register Bank
Sensor Type
External & Internal
Sensing Temperature
-40°C ~ 125°C, External Sensor
Output Type
I²C™/SMBus™
Output Alarm
Yes
Output Fan
Yes
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Full Temp Accuracy
+/- 1 C, +/- 3 C
Digital Output - Bus Interface
Serial (2-Wire)
Digital Output - Number Of Bits
11 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX6602 precision multichannel temperature sen-
sor monitors its own temperature and the temperatures
of up to four external diode-connected transistors. All
temperature channels have programmable alert thresh-
olds. Channels 1 and 4 also have programmable
overtemperature thresholds. When the measured tem-
perature of a channel exceeds the respective thresh-
old, a status bit is set in one of the status registers. Two
open-drain outputs, OVERT and ALERT, assert corre-
sponding to these bits in the status register.
The 2-wire serial interface supports the standard system
management bus (SMBus™) protocols: write byte, read
byte, send byte, and receive byte for reading the tem-
perature data and programming the alarm thresholds.
The MAX6602 is specified for a -40°C to +125°C oper-
ating temperature range and is available in a 16-pin
TSSOP package.
19-0620; Rev 1; 8/07
SMBus is a trademark of Intel Corp.
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Desktop Computers
Notebook Computers
Workstations
Servers
Five-Channel Precision Temperature Monitor
________________________________________________________________ Maxim Integrated Products
CPU
General Description
Applications
2200pF
2200pF
2200pF
2200pF
1
2
3
4
5
6
7
8
DXP1
DXN1
DXP2
DXN2
DXP3
DXN3
DXP4
DXN4
MAX6602
SMBDATA
♦ Four Thermal-Diode Inputs
♦ Local Temperature Sensor
♦ 1°C Remote Temperature Accuracy (+60°C to +100°C)
♦ Temperature Monitoring Begins at POR for Fail-
♦ ALERT and OVERT Outputs for Interrupts,
♦ STBY Input for Hardware Standby Mode
♦ Small, 16-Pin TSSOP Package
♦ 2-Wire SMBus Interface
SMBCLK
Note: This device is specified over the -40°C to +125°C
temperature range.
+Denotes lead-free package.
MAX6602UE9A+
OVERT
ALERT
STBY
Safe System Protection
Throttling, and Shutdown
GND
N.C.
V
CC
PART
16
15
14
13
12
11
10
9
Typical Application Circuit
PIN-
PACKAGE
16 TSSOP
Ordering Information
+3.3V
0.1μF
4.7kΩ
EACH
ADDRESS
1001 101
CLK
DATA
INTERRUPT
TO μP
TO SYSTEM
SHUTDOWN
SLAVE
Features
CODE
U16-1
PKG
1

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MAX6602UE9A+ Summary of contents

Page 1

... ALERT and OVERT Outputs for Interrupts, Throttling, and Shutdown ♦ STBY Input for Hardware Standby Mode ♦ Small, 16-Pin TSSOP Package ♦ 2-Wire SMBus Interface PART Applications MAX6602UE9A+ Note: This device is specified over the -40°C to +125°C temperature range. +Denotes lead-free package DXP1 ...

Page 2

Five-Channel Precision Temperature Monitor ABSOLUTE MAXIMUM RATINGS , SMBCLK, SMBDATA, ALERT, OVERT STBY to GND .......................................................-0.3V to +6V DXP_ to GND..............................................-0. DXN_ to GND ........................................................-0.3V to +0.8V SMBDATA, ALERT, OVERT Current....................-1mA to +50mA DXN Current .......................................................................±1mA ...

Page 3

Five-Channel Precision Temperature Monitor ELECTRICAL CHARACTERISTICS (continued +3.0V to +5.5V STBY CC CC +25°C.) (Note 1) PARAMETER SYMBOL SMBus INTERFACE (SCL, SDA), STBY Logic Input Low Voltage Logic Input High Voltage Input Leakage ...

Page 4

Five-Channel Precision Temperature Monitor (V = 3.3V +25°C, unless otherwise noted.) STBY SOFTWARE STANDBY SUPPLY CURRENT vs. SUPPLY VOLTAGE ...

Page 5

Five-Channel Precision Temperature Monitor (V = 3.3V +25°C, unless otherwise noted.) STBY REMOTE TEMPERATURE ERROR vs. COMMON-MODE NOISE FREQUENCY 5 100mV P ...

Page 6

Five-Channel Precision Temperature Monitor PIN NAME Combined Current Source and A/D Positive Input for Channel 4 Remote Diode. Connect to the anode 7 DXP4 of a remote-diode-connected temperature-sensing transistor. Leave floating or connect to V remote diode is used. Place ...

Page 7

Five-Channel Precision Temperature Monitor DXP1 DXN1 DXP2 DXN2 DXP3 DXN3 DXP4 DXN4 Figure 1. Internal Block Diagram SMBus Digital Interface From a software perspective, the MAX6602 appears as a series of 8-bit registers that contain temperature mea- surement data, alarm ...

Page 8

Five-Channel Precision Temperature Monitor Write Byte Format S ADDRESS WR 7 bits Slave Address: equiva- lent to chip-select line of a 3-wire interface Read Byte Format S ADDRESS WR ACK 7 bits Slave Address: equiva- lent to chip-select line Send ...

Page 9

Five-Channel Precision Temperature Monitor HIGH LOW SMBCLK SMBDATA SU:STA HD:STA SU:DAT A = START CONDITION B = MSB OF ADDRESS CLOCKED INTO SLAVE C = LSB OF ADDRESS CLOCKED INTO SLAVE D = ...

Page 10

Five-Channel Precision Temperature Monitor ALERT Response Address The SMBus alert response interrupt pointer provides quick fault identification for simple slave devices that lack the complex logic needed bus master. Upon receiving an interrupt signal, the host master ...

Page 11

Five-Channel Precision Temperature Monitor Table 3. Command Byte Register Bit Assignment ADDRESS REGISTER (hex) Local 07 Remote 1 01 Remote 2 02 Remote 3 03 Remote 4 04 Configuration 1 41 Configuration 2 42 Configuration 3 43 Status1 44 Status2 ...

Page 12

Five-Channel Precision Temperature Monitor Table 4. Configuration 1 Register BIT NAME 7 (MSB) STOP 6 POR TIMEOUT 5 4 Fast remote 1 Resistance 3 cancellation 2 Reserved 1 Reserved 0 Reserved Table 5. Configuration 2 Register BIT NAME 7 (MSB) ...

Page 13

Five-Channel Precision Temperature Monitor Table 7. Status 1 Register BIT NAME 7 (MSB) Reserved 6 Local ALERT 5 Reserved 4 Reserved 3 Remote 4 ALERT 2 Remote 3 ALERT 1 Remote 2 ALERT 0 Remote 1 ALERT Table 8. Status ...

Page 14

Five-Channel Precision Temperature Monitor Table 9. Status 3 Register BIT NAME 7 (MSB) Reserved 6 Reserved 5 Reserved 4 Diode fault 4 3 Diode fault 3 2 Diode fault 2 1 Diode fault 1 0 Reserved Applications Information Remote-Diode Selection ...

Page 15

Five-Channel Precision Temperature Monitor Discrete Remote Diodes When the remote-sensing diode is a discrete transistor, its collector and base must be connected together. Table 10 lists examples of discrete transistors that are appropriate for use with the MAX6602. The transistor ...

Page 16

Five-Channel Precision Temperature Monitor The slave address of the MAX6602 is 9Ah or 1001 101. Follow these guidelines to reduce the measurement error when measuring remote temperature: 1) Place the MAX6602 as close as is practical to the remote diode. ...

Page 17

Five-Channel Precision Temperature Monitor Pin Configuration TOP VIEW + DXP1 1 16 DXN1 2 15 DXP2 3 14 MAX6602 DXN2 4 13 DXP3 5 12 DXN3 6 11 DXP4 7 10 DXN4 8 9 TSSOP ______________________________________________________________________________________ PROCESS: BiCMOS GND SMBCLK ...

Page 18

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products ...

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