MIC811/812 Micrel
MIC811/812 4 September 2005
Absolute Maximum Ratings(Note 1)
Terminal Voltage (VCC) .................................–0.3V to +6.0V
Input Current (VCC, /MR) ............................................ 20mA
Output Current (/RESET, RESET) .............................. 20mA
Lead Temperature (soldering, 10 sec.) ...................... 300°C
Storage Temperature (TS) .......................... –65°C to 150°C
Rate of Rise (VCC) .................................................. 100V/µs
ESD Rating, Note 3 ....................................................... 3kV
Operating Ratings(Note 2)
Operating Temperature Range
MIC811 ..................................................... –40°C to 85°C
MIC812 ..................................................... –40°C to 85°C
Power Dissipation (TA = +70°C) .............................. 320mW
Electrical Characteristics
For typical values, VCC = 5V for MIC8_L/M/J, VCC = 3.3V for MIC8_S/T, VCC = 3V for MIC8_R; TA = 25°C, bold values indicate –40°C
≤ TA ≤ +85°C; unless noted
Symbol Parameter Condition Min Typ Max Units
VCC Operating Voltage Range TA = –40°C to 85°C 1 5.5 V
ICC Supply Current MIC811L/M/J, MIC812L/M/J: 5 15 µA
VCC = 5.0V, no load
MIC811S/T, MIC812S/T 5 10 µA
VCC = 3.3V, no load
MIC811R, MIC812R: VCC = 3.0V, no load 5 10 µA
VTH Reset Voltage Threshold MIC811L, MIC812L 4.50 4.63 4.75 V
MIC811M, MIC812M 4.25 4.38 4.50 V
MIC811J, MIC812J 3.89 4.00 4.10 V
MIC811T, MIC812T 3.00 3.08 3.15 V
MIC811S, MIC812S 2.85 2.93 3.00 V
MIC811R, MIC812R 2.55 2.63 2.70 V
tRST Reset Timeout Period 140 240 560 ms
VOH /RESET Output Voltage ISOURCE = 800µA, MIC811L/M/J VCC–1.5V V
ISOURCE = 500µA, MIC811R/S/T 0.8×VCC V
VOL /RESET Output Voltage VCC = VTH min., ISINK = 3.2mA, MIC811L/M/J 0.4 V
VCC = VTH min., ISINK = 1.2mA, MIC811R/S/T 0.3 V
VCC > 1V, ISINK = 50µA, TA = –40° to +85°C 0.3 V
VOH RESET Output Voltage 1.8V < VCC < VTH min., ISOURCE = 150µA 0.8×VCC V
VOL RESET Output Voltage ISINK = 3.2mA, MIC812L/M/J 0.4 V
ISINK = 1.2mA, MIC812R/S/T 0.3 V
/MR Minimum Pulse Width 10 µs
/MR to Reset Delay 0.5 µs
VIH /MR Input Threshold VCC > VTH max., MIC81_L/M/J 2.3 V
MIC81_R/S/T 0.7×VCC V
VIL /MR Input Threshold VCC . VTH max., MIC81-L/M/J 0.8 V
MIC81-R/S/T
0.25
×
VCC
/MR Pull-Up Resistance 10 20 30 kΩ
/MR Glitch Immunity 100 ns
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.