Temperature Monitors and
PWM Fan Controllers
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PIN
MAX6653
QSOP
MAX6663/
MAX6664
QSOP
NAME
FUNCTION
1
1
PWM_OUT
Digital Output (Open Drain). Pulse-width modulated output to external power transistor.
Requires a pullup resistor (10k& typ).
2
2
TACH/AIN
Digital/Analog Input. Fan tachometer input. May be reprogrammed as an analog input to
measure speed of a 2-wire fan. See Figure 5.
3

CRIT0
Input. Used in conjunction with CRIT1 to set THERM and SHUTDOWN default set points
(see Table 1).
4

CRIT1
Input. Used in conjunction with CRIT0 to set THERM and SHUTDOWN default set points
(see Table 1).

3, 4
N.C.
No Connection. Not internally connected.
5
5
GND
Ground
6
6
V
CC
Power Supply. Bypass with a 0.01礔 capacitor to GND.
7
7
THERM
Digital I/O (Open Drain). An active-low thermal-overload output to indicate that the
overtemperature set point has been exceeded. Also acts as an input to provide external
fan control. When this pin is pulled low by an external signal, a status bit is set and the
fan speed is forced full-on. Requires a pullup resistor (10k& typ).
8
8
FAN_FAULT
Digital Output (Active Low, Open Drain). Signals a fan fault. Requires a pullup resistor
(10k& typ).
9
9
DXN
Combined Current Sink and A/D Negative Input. DXN is internally biased to a diode
voltage above ground.
10
10
DXP
Combined Current Source and A/D Positive Input for the Remote-Diode Channel. Do not
leave DXP floating; connect DXP to DXN if no remote diode is used. Place a 2200pF
capacitor between DXP and DXN for noise filtering.
11

SDL
An Active-Low Open-Drain Output. It indicates that local temperature is above the
shutdown set point. Normally used to directly deactivate the CPU power supply.
12

SDR
An Active-Low Open-Drain Output. It indicates that remote temperature is above the
shutdown set point. Normally used to directly deactivate the CPU power supply.

11, 12
N.C.
Internal Connection. Leave floating or connect to GND.
13
13
ADD
Three-State Logic Input. Sets the 2 lower bits of the device SMBus address (Table 2).
ADD is not an ordinary logic input pin; ADD should be connected to V
CC
, GND, or float.
14
14
INT
Digital Output (Open Drain). Can be programmed as an interrupt output for
temperature/fan speed interrupts. Requires a pullup resistor (10k& typ). For the
MAX6653/MAX6663, it can be used also as an input. If pulled low, fan speed is forced to
maximum unless masked.
15
15
SMBDATA
SMBus Serial-Data Input/Output (Open Drain). Requires a pullup resistor (10k& typ).
16
16
SMBCLK
SMBus Serial-Clock Input. Requires a pullup resistor (10k& typ).

12
N.C.
Internal Connection. Leave floating or connect to GND.
Pin Description
相关PDF资料
MAX6665ASA45+ IC FAN CNTRL/DRVR 8-SOIC
MAX6670AUB45+ IC TEMP SENSOR REMOTE 10-UMAX
MAX6678AEP92+ IC TEMP MONITOR 2CH PWM 20-QSOP
MAX6681MEE+ IC TEMP SENSOR SMBUS 16-QSOP
MAX6689UP34+ IC 7CH PREC TEMP MONITOR 20TSSOP
MAX6690MEE+ IC TEMP SENSOR SMBUS 16-QSOP
MAX6692YMSA+ IC SENSOR REMOTE SMBUS 8SOIC
MAX6693UP9A+T IC TEMP MONITOR 7CH 20-TSSOP
相关代理商/技术参数
MAX6664AEE-T 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
MAX6664AEE-TG075 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX6665ASA070 制造商:Maxim Integrated Products 功能描述:
MAX6665ASA40 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
MAX6665ASA40+ 功能描述:马达/运动/点火控制器和驱动器 Fan Controller Driver RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
MAX6665ASA40+T 功能描述:马达/运动/点火控制器和驱动器 Fan Controller Driver RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
MAX6665ASA40-T 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
MAX6665ASA45 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube