PDF NE1619DS Data sheet ( Hoja de datos )

Número de pieza	NE1619DS
Descripción	Temperature and voltage monitor
Fabricantes	Philips
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No Preview Available ! INTEGRATED CIRCUITS NE1619 HECETA4 Temperature and voltage monitor Product data sheet Supersedes data of 2004 May 10 2004 Oct 05 Philips Semiconductors 1 page Philips Semiconductors HECETA4 Temperature and voltage monitor Product data sheet NE1619 TYPICAL APPLICATION CIRCUIT Remote Sensor 0.1 µF Ground µP On-Board PNP Transistor See Note 1 or Discrete NPN Transistor 10 D+ 4 VDD/3.3VSB 10 kΩ 2 SCL 1 SDA 10 kΩ 9 D– A0/RESET/ 16 NTEST_OUT System Power Supplies VCCP 2.5 V 3.3 V 5.0 V 12.0 V NE1619 15 VCCPVIN 14 2.5VIN 13 3.3VIN 12 5VIN VID0 VID1 VID2 VID3 5 6 7 8 11 12VIN/VID4 GND 3 Ground NOTE: 1. Should be placed close to D+ and D– pins. May be required in noisy environment, about 1 nF. Figure 3. Typical application circuit ABSOLUTE MAXIMUM RATINGS PARAMETER VDD to GND 12VIN to GND 5VIN, 3.3VIN, 2.5VIN, VCCP to GND Other pins to GND Input current at any pin Package input current Operating temperature range Maximum junction temperature Storage temperature range VDD 100 kΩ SMBus CLOCK DATA Selectable A0/RESET/NTEST_OUT Processor Voltage ID Code VID0 VID1 VID2 VID3 VID4 SL01230 MIN. –0.3 –0.3 –0.3 –0.3 –5 –20 0 – –65 MAX. 6 18 6 VDD+0.3 5 20 +125 +150 +150 UNIT V V V V mA mA °C °C °C 2004 Oct 05 5 5 Page Philips Semiconductors HECETA4 Temperature and voltage monitor Product data sheet NE1619 Table 2. Configuration Register (CR, 40h, default = 0000 1000) BIT NAME R/W DESCRIPTION 0 START R/W Logic 1 enables startup of monitor device, logic 0 places the device in standby mode. Power–up default = 0. At startup, limit checking functions and scanning begins. Note, all High and Low limits should be set into the ASIC prior turning on this bit. 1 Reserved Read Power-up default = 0. 2 Reserved Read Power-up default = 0. 3 Reserved Read Power-up default = 1. 4 RESET 5 12VIN/VID4 SELECT 6 Reserved R/W R/W Read Setting this bit generates a minimum 20ms low pulse on the Reset pin, if the reset function is enabled. Power-up default = 0. Selects whether pin 11 acts as a 12 volt analog input monitoring pin, or as a VID[4] input. This pin defaults to the 12 volt analog input. Power–up default = 0. Power–up default = 0. 7 Initialization R/W Logic 1 restores power–up default values to the configuration register and the status registers. This bit automatically clears itself. Power–up default = 0. Table 3. Status Register 1 (SR1, 41h, default = 0000 0000) BIT NAME R/W DESCRIPTION 0 +2.5V_ERROR Read A one indicates 2.5VIN High or Low limit has been exceeded. 1 VCCP_ERROR 2 +3.3V_ERROR 3 +5V_ERROR 4 Internal Temp Error 5 External Temp Error 6 Reserved 7 Reserved Read Read Read Read Read Read Read A one indicates VCCPVIN High or Low limit has been exceeded. A one indicates 3.3VIN High or Low limit has been exceeded. A one indicates 5VIN High or Low limit has been exceeded. A one indicates internal or local temp High or Low limit has been exceeded. A one indicates external or remote temp High or Low limit has been exceeded. Table 4. Status Register 2 (SR2, 42h, default = 0000 0000) BIT NAME R/W DESCRIPTION 0 +12V_ERROR 1 VDD_ERROR 2 Reserved Read Read Read A one indicates 12VIN High or Low limit has been exceeded. A one indicates VDD High or Low limit has been exceeded. Undefined. 3 Reserved Read Undefined. 4 Reserved Read Undefined. 5 Reserved Read Undefined. 6 Remote Diode Fault Read A one indicates either a short or open circuited fault on the remote thermal diode inputs. 7 Reserved Read Undefined. Table 5. VID (VID, 47h, default = 0000 VID[3:0] ) BIT NAME R/W DESCRIPTION 0–3 VID[0:3] Read The VID[0:3] inputs from Pentium/PRO power supplies ID to indicate the operating voltage (e.g. 1.5V to 2.9V). Power-up default = VID[0:3]. 4–6 Reserved Read Undefined. 7 RESET ENABLE Read When set to 1, enables the RESET pin output function. This bit defaults to 0 at Power–up and enables addressing function. Table 6. VID4 (VID4, 49h, default = 1000 000VID[4] ) BIT NAME R/W DESCRIPTION 0 VID4 Read VID4 input, if selected, from Pentium/PRO power supplied ID. Power-up default = 0 and pin 11 is not selected for VID4. 1–7 Reserved Read Power-up default = 1000 000 2004 Oct 05 11 11 Page

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