Product Summary

The LM99CIMM is an 11-bit remote diode temperature sensor with a 2-wire System Management Bus (SMBus) serial interface. The LM99CIMM has an Offset Register which provides a means for precise matching to various thermal diodes. Contact hardware.monitor@nsc.com for the latest details. The applications of it are Graphics Processor Thermal Management, Computer Processor Thermal Management, Electronic Test Equipment, Office Electronics.

Parametrics

LM99CIMM absolute maximum ratings: (1)Supply Voltage: -0.3 V to 6.0 V; (2)Voltage at SMBData, SMBCLK, ALERT, T_CRIT_A: -0.5 V to 6.0 V; (3)Voltage at Other Pins: -0.3 V to (VDD + 0.3 V); (4)DC Input Current: ±1 mA; (5)Input Current at All Other Pins: ±5 mA; (6)Package Input Current: 30 mA; (7)SMBData, ALERT, T_CRIT_A Output Sink Current: 10 mA; (8)Storage Temperature: -65°C to +150°C.

Features

LM99CIMM features: (1)Accurately senses the temperature of remote diodes; (2)Offset register allows use of a variety of thermal diodes; (3)On-board local temperature sensing; (4)10 bit plus sign remote diode temperature data format, 0.125 DC resolution; (5)T_CRIT_A output useful for system shutdown; (6)ALERT output supports SMBus 2.0 protocol; (7)SMBus 2.0 compatible interface, supports TIMEOUT; (8)8-pin MSOP package.

Diagrams

LM99CIMM block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM99CIMM
LM99CIMM
National Semiconductor (TI)
Board Mount Temperature Sensors
Data Sheet
0-1000: $0.76
1000-5000: $0.73
5000-10000: $0.71
LM99CIMM/NOPB
LM99CIMM/NOPB
National Semiconductor (TI)
Board Mount Temperature Sensors
Data Sheet
0-1: $1.75
1-25: $1.41
25-100: $1.27
100-250: $1.13
LM99CIMMX/NOPB
LM99CIMMX/NOPB
National Semiconductor (TI)
Board Mount Temperature Sensors
Data Sheet
0-2600: $0.76
2600-3500: $0.76
3500-5000: $0.73
5000-10000: $0.71
LM99CIMMX
LM99CIMMX
National Semiconductor (TI)
Board Mount Temperature Sensors
Data Sheet
0-3500: $0.76
3500-7000: $0.73