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MAX6652MSA, MAX6653, MAX6653AEE

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Info of MAX6652MSA
Info of MAX6653
Info of MAX6653AEE

MAX6652MSA, MAX6653, MAX6653AEE Selling Leads, Datasheet

MFG:MAXIM Package Cooled:SMD D/C:06+

MAX6652MSA, MAX6653, MAX6653AEE Datasheet download

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Part Number: MAX6652MSA

MFG: MAXIM

Package Cooled: SMD

D/C: 06+

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MAX6653 General Description

The MAX6653/MAX6663/MAX6664 are ACPI-compliant local and remote-junction temperature sensors and fan controllers. These devices measure their own die temperature, as well as the temperature of a remote-PN junction and control the speed of a DC cooling fan based on the measured temperature. Remote temperature measurement accuracy is ±1℃from +60℃ to +100℃. Temperature measurement resolution is 0.125℃for both local and remote temperatures.

Internal watchdog set points are provided for both local and remote temperatures. There are two comparison set points for local temperatures and two for remote temperatures. When a set point is crossed, the MAX6653/MAX6663/MAX6664 assert either theINTor THERM outputs. These outputs can be used as interrupts, clock throttle signals, or overtemperature shutdown signals. Two pins on the MAX6653 control the power-up values of the comparison set points, providing fail-safe protection even when the system is unable to program the trip temperatures. The MAX6653 has two additional shutdown outputs, SDR and SDL , that are triggered when the remote or local temperatures exceed the programmed shutdown set points. The INT

output for the MAX6653/MAX6663 and THERM outputs for the MAX6653/MAX6663/MAX6664 can also function as inputs if either is pulled low to force the fan to full speed, unless this function is masked by the user.

The MAX6653/MAX6663/MAX6664 are available in 16-pin QSOP packages and operate over the -40℃ to +125℃ temperature range.

MAX6653 Maximum Ratings

All Voltages Are Referenced to GND
TACH/AIN..............................................................-0.3V to +5.5V
VCC..........................................................................-0.3V to +6V
DXP, ADD, CRIT0, CRIT1..........................-0.3V to + (VCC + 0.3V)
DXN ......................................................................-0.3V to +0.8V
SMBDATA, SMBCLK, INT , THERM,
FAN_FAULT, SDL, SDR ..............................................-0.3V to +6V
SMBDATA, INT, THERM, FAN_FAULT,
PWM_OUT Current...............................................-1mA to +50mA
DXN Current ......................................................................±1mA
ESD Protection (all pins, Human Body Model) ....................2000V
Continuous Power Dissipation (TA = +70℃)
16-Pin QSOP (derate 8.3 mW/℃ above +70℃).................667mW
Operating Temperature Range ............................-40℃ to +125℃

Junction Temperature.........................................................+150℃

Storage Temperature Range .................................-65℃ to +165℃
Lead Temperature (soldering, 10s) .....................................+300℃

MAX6653 Features

●Remote-Junction Temperature Sensor Within ±1℃Accuracy (+60℃to +100℃)
●ACPI-Compatible Programmable Temperature Alarms
●0.125℃Resolution Local and Remote-Junction Temperature Measurement
●Programmable Temperature Offset for System Calibration
●SMBus 2-Wire Serial Interface with Timeout
●Automatic or Manual Fan-Speed Control
●PWM Fan Control Output
●Fan-Speed Monitoring and Watchdog
●Fan Fault and Failure Indicators
●Compatible with 2-Wire or 3-Wire Fans (Tachometer Output)
●+3V to +5.5V Supply Range
●Additional Shutdown Set Point (MAX6653)
●Controlled PWM Rise/Fall Times

MAX6653 Typical Application

Personal Computers Servers Workstations Telecom Equipment Networking Equipment Test Equipment Industrial Controls

MAX6653 Connection Diagram

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