Onsemi NCT72 | Demoboard ONSEC-19-003 | Würth Elektronik Reference Design Search

reference designNCT72 | Demoboard ONSEC-19-003

Overview

Topology	Other Topology
IC revision	1.0

Description

The NCT72 is a dual-channel digital thermometer and undertemperature/overtemperature alarm, intended for use in PCs and thermal management systems. It is pin and register compatible with the NCT1008 but the NCT72 allows the user to pull the /ALERT pin to 1.8V without increasin the device Idd. A feature of the NCT72 is series resistance cancellation, where up to 1.5 kΩ (typical) of resistance in series with the temperature monitoring diode can be automatically cancelled from the temperature result, allowing noise filtering. The NCT72 has a configurable /ALERT output and an extended, switchable temperature measurement range. The NCT72 can measure the temperature of a remote thermal diode accurate to ±1°C and the ambient temperature accurate to ±3°C. The temperature measurement range defaults to 0°C to +127°C, compatible with the NCT1008, but it can be switched to a wider measurement range of -64°C to +191°C. The NCT72 communicates over a 2-wire serial interface, compatible with system management bus (SMBus/I2C) standards. The default SMBus/I2C address of the NCT72 is 0x4C. An NCT72D is available with an SMBus/I2C address of 0x4D. This is useful if more than one NCT72 is used on the same SMBus/I2C. An /ALERT output signals when the on-chip or remote temperature is out of range. The /THERM output is a comparator output that allows on/off control of a cooling fan. The /ALERT output can be reconfigured as a second /THERM output, if required.

Features

On-Chip and Remote Temperature Sensor
0.25°C Resolution/1°C Accuracy on Remote Channel
1°C Resolution/1°C Accuracy on Local Channel
Series Resistance Cancellation up to 1.5 kΩ
Extended, Switchable Temperature Measurement Range 0°C to +127°C (Default) or -64°C to +191°C
Pin and Register Compatible with NCT1008
Remote /THERM limit of 108°C
2-Wire SMBus/I2C Serial Interface with SMBus Alert Support
Programmable Over/Undertemperature Limits
Offset Registers for System Calibration
Up to Two Overtemperature Fail-Safe /THERM Outputs
240 µA Operating Current, 5 µA Standby Current
Compatible with 1.8 V Logic

Typical applications

Smart Phones, Desktop and Notebook Computers
Embedded systems
Smart Batteries
Automotive

More information

Products

Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (mm)	T_o	T_i	λ_{Dom typ.} (nm)	Emitting Color	λ_{Peak typ.} (nm)	I_{V typ.} (mcd)	V_{F typ.} (V)	Chip Technology	2θ_{50% typ.} (°)	SW (mm)	Application	Interface Type	Type	Gender	Pins (pcs)	Mount	Working Voltage (V (AC))	Packaging	Pitch (mm)	Rows	I_R (A)	H (mm)	Operation Force (g)	Electrical Life (Cycles)	Actuator Color	Washable	Vaporphase process
150060RS75000	SPEC		26 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev24b).IntLib \| 246 KB CDS Cadence_WL-SMCW (rev24b).zip \| 1 MB EAG Eagle_WL-SMCW (rev25a).lbr \| 82.3 KB CAD files ZIP IGS IGS_150060xS75000 (rev1).igs \| 314.9 KB STP STP_150060xS75000 (rev1).stp \| 135.1 KB Electric models ZIP PSP PSpice_WL-SMCW (rev24b).zip \| 10.9 KB RAY files ASA ASAP-and-APEX_dis_150060RS75000_5M (rev1p0).zip \| 121 MB COD CodeV_ray_150060RS75000_5M (rev1p0).zip \| 121 MB FRE Fred_dat_150060RS75000_5M (rev1p0).zip \| 121 MB FRE Fred_txt_150060RS75000_5M (rev1p0).zip \| 189 MB LIG LightTools_ray_150060RS75000_5M (rev1p0).zip \| 121 MB LIG LightTools_txt_150060RS75000_5M (rev1p0).zip \| 189 MB LUC LucidShape_ray_150060RS75000_5M (rev1p0).zip \| 121 MB LUC LucidShape_txt_150060RS75000_5M (rev1p0).zip \| 189 MB OPT OpTaliX_txt_150060RS75000_5M (rev1p0).zip \| 189 MB OPT OptiCAD_dat_150060RS75000_5M (rev1p0).zip \| 121 MB OPT OptiCAD_txt_150060RS75000_5M (rev1p0).zip \| 189 MB OPT optalix_DIS_150060RS75000_5M (rev1p0).zip \| 121 MB RIR Photopia_rir_150060RS75000_5M (rev1p0).zip \| 121 MB SIM Simulux_ray_150060RS75000_5M (rev1p0).zip \| 121 MB SPE Speos_ray_150060RS75000_5M (rev1p0).zip \| 125.7 MB SRC Lucaray-maker_src_150060RS75000_5M (rev1p0).zip \| 121 MB TRA TracePro_txt_150060RS75000_5M (rev1p0).zip \| 189.1 MB ZEM ZemaxBin_dat_150060RS75000_5M (rev1p0).zip \| 121 MB ZEM Zemax_dat_150060RS75000_5M (rev1p0).zip \| 189 MB Certificates ZIP CER IR_LED_certificate_WL-SMCW-0603 (rev1).pdf \| 964.2 KB	Active i\| Production is active. Expected lifetime: >10 years.	WL-SMCW SMT Mono-color Chip LED Waterclear	1.6	–	–	625	Red	630	250	2	AlInGaP	140	–	–	–	–	–	–	SMT	–	Tape and Reel	–	–	–	0.7	–	–	–	–	–
150060YS75000	SPEC		26 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev24b).IntLib \| 246 KB CDS Cadence_WL-SMCW (rev24b).zip \| 1 MB EAG Eagle_WL-SMCW (rev25a).lbr \| 82.3 KB CAD files ZIP IGS IGS_150060xS75000 (rev1).igs \| 314.9 KB STP STP_150060xS75000 (rev1).stp \| 135.1 KB Electric models ZIP PSP PSpice_WL-SMCW (rev24b).zip \| 10.9 KB RAY files ASA ASAP-and-APEX_dis_150060YS75000_5M (rev1p0).zip \| 121.1 MB COD CodeV_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB FRE Fred_dat_150060YS75000_5M (rev1p0).zip \| 121.1 MB FRE Fred_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB LIG LightTools_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB LIG LightTools_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB LUC LucidShape_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB LUC LucidShape_txt_150060YS75000_5M (rev1p0).zip \| 189.8 MB OPT OpTaliX_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB OPT OptiCAD_dat_150060YS75000_5M (rev1p0).zip \| 121.1 MB OPT OptiCAD_txt_150060YS75000_5M (rev1p0).zip \| 189.8 MB OPT optalix_DIS_150060YS75000_5M (rev1p0).zip \| 121.1 MB RIR Photopia_rir_150060YS75000_5M (rev1p0).zip \| 121.1 MB SIM Simulux_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB SPE Speos_ray_150060YS75000_5M (rev1p0).zip \| 125.7 MB SRC Lucaray-maker_src_150060YS75000_5M (rev1p0).zip \| 121.1 MB TRA TracePro_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB ZEM ZemaxBin_dat_150060YS75000_5M (rev1p0).zip \| 121.1 MB ZEM Zemax_dat_150060YS75000_5M (rev1p0).zip \| 189.8 MB Certificates ZIP CER IR_LED_certificate_WL-SMCW-0603 (rev1).pdf \| 964.2 KB	Active i\| Production is active. Expected lifetime: >10 years.	WL-SMCW SMT Mono-color Chip LED Waterclear	1.6	–	–	590	Yellow	595	120	2	AlInGaP	140	–	–	–	–	–	–	SMT	–	Tape and Reel	–	–	–	0.7	–	–	–	–	–
150060GS75000	SPEC		26 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev24b).IntLib \| 246 KB CDS Cadence_WL-SMCW (rev24b).zip \| 1 MB EAG Eagle_WL-SMCW (rev25a).lbr \| 82.3 KB CAD files ZIP IGS IGS_150060xS75000 (rev1).igs \| 314.9 KB STP STP_150060xS75000 (rev1).stp \| 135.1 KB Electric models ZIP PSP PSpice_WL-SMCW (rev24b).zip \| 10.9 KB RAY files ASA ASAP-and-APEX_dis_150060GS75000_5M (rev1p0).zip \| 120.7 MB COD CodeV_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_dat_150060GS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB LIG LightTools_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB LIG LightTools_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB LUC LucidShape_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB LUC LucidShape_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB OPT OpTaliX_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB OPT OptiCAD_dat_150060GS75000_5M (rev1p0).zip \| 120.7 MB OPT OptiCAD_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB OPT optalix_DIS_150060GS75000_5M (rev1p0).zip \| 120.7 MB RIR Photopia_rir_150060GS75000_5M (rev1p0).zip \| 120.7 MB SIM Simulux_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB SPE Speos_ray_150060GS75000_5M (rev1p0).zip \| 125.4 MB SRC Lucaray-maker_src_150060GS75000_5M (rev1p0).zip \| 120.7 MB TRA TracePro_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB ZEM ZemaxBin_dat_150060GS75000_5M (rev1p0).zip \| 120.7 MB ZEM Zemax_dat_150060GS75000_5M (rev1p0).zip \| 189.4 MB Certificates ZIP CER IR_LED_certificate_WL-SMCW-0603 (rev1).pdf \| 964.2 KB	Active i\| Production is active. Expected lifetime: >10 years.	WL-SMCW SMT Mono-color Chip LED Waterclear	1.6	–	–	525	Green	515	430	3.2	InGaN	140	–	–	–	–	–	–	SMT	–	Tape and Reel	–	–	–	0.7	–	–	–	–	–
150060BS75000	SPEC		26 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev24b).IntLib \| 246 KB CDS Cadence_WL-SMCW (rev24b).zip \| 1 MB EAG Eagle_WL-SMCW (rev25a).lbr \| 82.3 KB CAD files ZIP IGS IGS_150060xS75000 (rev1).igs \| 314.9 KB STP STP_150060xS75000 (rev1).stp \| 135.1 KB Electric models ZIP PSP PSpice_WL-SMCW (rev24b).zip \| 10.9 KB RAY files ASA ASAP-and-APEX_dis_150060BS75000_5M (rev1p0).zip \| 120.7 MB COD CodeV_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_dat_150060BS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB LIG LightTools_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB LIG LightTools_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB LUC LucidShape_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB LUC LucidShape_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB OPT OpTaliX_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB OPT OptiCAD_dat_150060BS75000_5M (rev1p0).zip \| 120.7 MB OPT OptiCAD_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB OPT optalix_DIS_150060BS75000_5M (rev1p0).zip \| 120.7 MB RIR Photopia_rir_150060BS75000_5M (rev1p0).zip \| 120.7 MB SIM Simulux_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB SPE Speos_ray_150060BS75000_5M (rev1p0).zip \| 125.5 MB SRC Lucaray-maker_src_150060BS75000_5M (rev1p0).zip \| 120.7 MB TRA TracePro_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB ZEM ZemaxBin_dat_150060BS75000_5M (rev1p0).zip \| 120.7 MB ZEM Zemax_dat_150060BS75000_5M (rev1p0).zip \| 189.6 MB Certificates ZIP CER IR_LED_certificate_WL-SMCW-0603 (rev1).pdf \| 964.2 KB	Active i\| Production is active. Expected lifetime: >10 years.	WL-SMCW SMT Mono-color Chip LED Waterclear	1.6	–	–	470	Blue	465	145	3.2	InGaN	140	–	–	–	–	–	–	SMT	–	Tape and Reel	–	–	–	0.7	–	–	–	–	–
61300211121	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 3D_61300211121 (rev1).pdf \| 21.6 KB IGS Download_IGES_61300211121 (rev1).iges \| 257.6 KB STP Download_STP_61300211121 (rev1).stp \| 63.3 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Pin Header - Single	5.08	–	–	–	–	–	–	–	–	–	–	–	–	Straight	Pin Header	2	THT	250	Bag	2.54	Single	3	–	–	–	–	–	–
61300311121	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 3D_61300311121 (rev1).pdf \| 25.9 KB IGS Download_IGES_61300311121 (rev1).iges \| 345.8 KB STP Download_STP_61300311121 (rev1).stp \| 83.8 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Pin Header - Single	7.62	–	–	–	–	–	–	–	–	–	–	–	–	Straight	Pin Header	3	THT	250	Bag	2.54	Single	3	–	–	–	–	–	–
971100365	SPEC	–	3 files CAD files ZIP 3D 3D_971100365 (rev1).pdf \| 58.7 KB IGS Download_IGS_971100365 (rev1).igs \| 204.2 KB STP Download_STEP_971100365 (rev1).stp \| 48.5 KB Download all 3 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WA-SPAIE Plastic Spacer Stud, metric, internal/ external	10	M3	M3	–	–	–	–	–	–	–	6	–	–	–	–	–	–	–	Bag	–	–	–	–	–	–	–	–	–
434153017835	SPEC	–	5 files EDA models: Components ZIP ALT Altium_WS-TASV (rev24d).IntLib \| 2.1 MB CDS Cadence_WS-TASV (rev24c).zip \| 13.6 MB EAG Eagle_WS-TASV (rev25a).lbr \| 448 KB CAD files ZIP IGS Download_IGS_434153017835 (rev1).igs \| 1.6 MB STP Download_STP_434153017835 (rev1).stp \| 641.5 KB Download all 5 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	Tape and Reel	–	–	0.05	1.7	350	200000	Blue	No	not specified
65100516121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-USB (rev25a).IntLib \| 12 MB CDS Cadence_WR-COM_USB (rev25b).zip \| 61.6 MB EAG Eagle_WR-USB (rev25b).lbr \| 451.8 KB CAD files ZIP 3D 3D_65100516121 (rev1).pdf \| 224.5 KB IGS Download_IGS_65100516121 (rev1).igs \| 3.2 MB STP Download_STP_65100516121 (rev1).stp \| 1.2 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WR-USB Mini/Micro Connectors	–	–	–	–	–	–	–	–	–	–	–	Mini USB 2.0	Type B	Horizontal	Receptacle	5	SMT	30	Tape and Reel & Mylar	–	–	1	–	–	–	–	–	–
709940300	SPEC	–	3 files CAD files ZIP 3D 3D_709940300 (rev1).pdf \| 56.4 KB IGS Download_IGS_709940300 (rev1).igs \| 217.9 KB STP Downloads_STEP_709940300 (rev1).stp \| 60.7 KB Download all 3 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WA-SNTE Snap-In Stop Spacer for Printed Circuit Boards	–	–	M3	–	–	–	–	–	–	–	5.5	–	–	–	–	–	–	–	Bag	–	–	–	2.4	–	–	–	–	–

Order Code	Datasheet	Simulation
150060RS75000	SPEC
150060YS75000	SPEC
150060GS75000	SPEC
150060BS75000	SPEC
61300211121	SPEC	–
61300311121	SPEC	–
971100365	SPEC	–
434153017835	SPEC	–
65100516121	SPEC	–
709940300	SPEC	–

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (mm)	T_o	T_i	λ_{Dom typ.} (nm)	Emitting Color	λ_{Peak typ.} (nm)	I_{V typ.} (mcd)	V_{F typ.} (V)	Chip Technology	2θ_{50% typ.} (°)	SW (mm)	Application	Interface Type	Type	Gender	Pins (pcs)	Mount	Working Voltage (V (AC))	Packaging	Pitch (mm)	Rows	I_R (A)	H (mm)	Operation Force (g)	Electrical Life (Cycles)	Actuator Color	Washable	Vaporphase process	Samples

IC manufacturers (104)

Onsemi NCT72 | Demoboard ONSEC-19-003

±1°C Temperature Monitor with Series Resistance Cancellation

Overview

Description

Features

Typical applications

More information

Products

RAY files

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