Product Overview
The MIC184 is a versatile digital thermal supervisor capable of measuring temperature using either its own internal sensor or an inexpensive external sensor. It features a 2-wire I2C/SMBus compatible interface, pin and software backward compatibility to the LM75, and a 9-bit Sigma-Delta ADC. Programmable thermostatic settings, an open-drain comparator/interrupt output, interrupt mask and status bits, and a low-power shutdown mode are included. The device offers fail-safe response to diode faults and operates over a 2.7V to 5.5V power supply range. Up to eight devices can share the same bus. Applications include desktop, server, and notebook computers, printers, copiers, test and measurement equipment, and consumer electronics.
Product Attributes
- Brand: Microchip Technology Inc.
- Product Name: MIC184
- Package Types: MSOP-8 (MM) & SOIC-8 (M)
Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Units | Conditions |
| Power Supply Voltage | VDD | 2.7 | 5.5 | V | Operating Ratings | |
| Supply Current (Normal Mode) | IDD | 340 | 500 | A | INT open, A2, A1, A0 = VDD or GND, CLK = DATA = high | |
| Supply Current (Shutdown Mode) | IDD | 2.5 | A | INT open, A2, A1, A0 = VDD or GND, CLK = 100 kHz | ||
| Power-On Reset Time | tPOR | 15 | 100 | s | VDD > VPOR | |
| Power-On Reset Voltage | VPOR | 2.0 | 2.7 | V | All registers reset to default values, A/D conversions initiated | |
| AccuracyLocal Temperature | 1 | 2 | C | 0C TA +100C, INT open, 3V VDD 3.6V | ||
| AccuracyLocal Temperature | 2 | 3 | C | 55C TA +125C, INT open, 3V VDD 3.6V | ||
| AccuracyRemote Temperature | 1 | 3 | C | 0C TD +100C, INT open, 3V VDD 3.6V, 0C TA 85C | ||
| AccuracyRemote Temperature | 2 | 5 | C | 55C TD +125C, INT open, 3V VDD 3.6V, 0C TA +85C | ||
| Conversion Time (Local Temperature) | tCONV | 100 | 160 | ms | Local temperature | |
| Conversion Time (Remote Temperature) | tCONV | 200 | 320 | ms | Remote temperature | |
| Remote Temperature Input Current (High Level) | IF | 7.5 | 14 | A | ||
| Remote Temperature Input Current (Low Level) | IF | 224 | 400 | A | ||
| Address Inputs Low Input Voltage | VIL | 0.6 | V | 2.7V VDD 5.5V | ||
| Address Inputs High Input Voltage | VIH | 2.0 | V | 2.7V VDD 5.5V | ||
| Serial Data I/O Low Output Voltage | VOL | 0.4 | V | IOL = 3 mA | ||
| Serial Data I/O Low Output Voltage | VOL | 0.8 | V | IOL = 6 mA | ||
| Serial Data I/O Low Input Voltage | VIL | 0.3VDD | V | 2.7V VDD 5.5V | ||
| Serial Data I/O High Input Voltage | VIH | 0.7VDD | V | 2.7V VDD 5.5V | ||
| Serial Clock Input Low Input Voltage | VIL | 0.3VDD | V | 2.7V VDD 5.5V | ||
| Serial Clock Input High Input Voltage | VIH | 0.7VDD | V | 2.7V VDD 5.5V | ||
| Interrupt Output Low Output Voltage | VOL | 0.4 | V | IOL = 3 mA | ||
| Interrupt Output Low Output Voltage | VOL | 0.8 | V | IOL = 6 mA | ||
| Interrupt Propagation Delay | tINT | tCONV+1 | s | From TEMP > T_SET, FQ = 00 to INT < VOL, RPULLUP = 10 k; POL bit = 0 | ||
| Interrupt Reset Propagation Delay | tnINT | 1 | s | From any register read to INT > VOH, RPULLUP = 10 k; POL bit = 0 | ||
| Default T_SET Value | T_SET | 80 | 80 | 80 | C | tPOR after VDD > VPOR |
| Default HYST Value | HYST | 75 | 75 | 75 | C | tPOR after VDD > VPOR |
| Clock Period | t1 | 2.5 | s | |||
| Data In Setup Time to CLK High | t2 | 100 | ns | |||
| Data Out Stable After CLK Low | t3 | 0 | ns | |||
| Data Low Setup Time to CLK Low | t4 | 100 | ns | Start condition | ||
| Data High Hold Time After CLK High | t5 | 100 | ns | Stop condition | ||
| Operating Ambient Temperature Range | TA | 55 | +125 | C | ||
| Junction Operating Temperature | TJ | +150 | C | |||
| Storage Temperature Range | TS | 65 | +150 | C | ||
| Thermal Resistance, SOIC | JA | +152 | C/W | |||
| Thermal Resistance, MSOP | JA | +206 | C/W |
2410311238_MICROCHIP-MIC184BMM-TR_C19379198.pdf
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