MIC809TUY

MIC809_11 MICREL | Alldatasheet

Document overview

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Technical content

Features

• Precision voltage monitor for 3V, 3.3V or 5V power sup- plies
• /RESET remains valid with V CC as low as 1.4V for SOT- 23 packaged part
• /RESET remains valid with VCC as low as 1V for SC70 packaged part
• Typically less than15µA supply current for SOT-23 pack- aged part
• 5µ typical supply current for SC70 packaged part
• 140ms minimum reset pulse widths available
• Available in 3-pin SOT-23 and SC-70 package

Applications

• Portable equipment
• Intelligent instruments
• Critical microprocessor power monitoring
• Printers/computers
• Controllers Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Pin Number Pin Number Pin Name Pin Function MIC809 MIC810 1 1 GND IC Ground Pin.

2 N/A /RESET /RESET goes low if V CC falls below the reset threshold and remains as-

serted for one reset timeout period (140ms min.) after VCC exceeds the reset threshold. N/A 2 RESET RESET goes high if V CC falls below the reset threshold and remains as- serted for one reset timeout period (140ms min.) after VCC exceeds the reset threshold. 3 3 VCC Power Supply Input. Pin Confi guration

3 VCC

Pin Number Pin Number Pin Name Pin Function MIC809 MIC810 N/A 2 RESET RESET goes high if V 3 3 VCC Power Supply Input. Pin Number Pin Number Pin Name Pin Function MIC809 MIC810 1 1 GND IC Ground Pin.

2 N/A /RESET /RESET goes low if V

N/A 2 RESET RESET goes high if V 3 3 VCC Power Supply Input. Pin Number Pin Number Pin Name Pin Function 1 1 GND IC Ground Pin. N/A 2 RESET RESET goes high if V 3 3 VCC Power Supply Input. Pin Number Pin Number Pin Name Pin Function 1 1 GND IC Ground Pin. N/A 2 RESET RESET goes high if V 3 3 VCC Power Supply Input. MIC809 3-Lead SOT23 MIC809 3-Lead SC70

Ordering Information

Part Number Threshold Operating Lead Finish 3-lead SOT-23 Package 3-lead SC-70 Package Marking Voltage Temp. Range MIC809LU MIC809LBC3 IL 4.63 –40°C to +85°C Standard MIC809MU MIC809MBC3 IM 4.38 –40°C to +85°C Standard MIC809JU MIC809JBC3 IJ 4.00 –40°C to +85°C Standard MIC809TU MIC809TBC3 IT 3.08 –40°C to +85°C Standard MIC809SU MIC809SBC3 IS 2.93 –40°C to +85°C Standard MIC809RU MIC809RBC3 IR 2.63 –40°C to +85°C Standard MIC810LU MIC810LBC3 JL 4.63 –40°C to +85°C Standard MIC810MU MIC810MBC3 JM 4.38 –40°C to +85°C Standard MIC810JU MIC810JBC3 JJ 4.00 –40°C to +85°C Standard MIC810TU MIC810TBC3 JT 3.08 –40°C to +85°C Standard MIC810SU MIC810SBC3 JS 2.93 –40°C to +85°C Standard MIC810RU MIC810RBC3 JR 2.63 –40°C to +85°C Standard MIC809LUY MIC809LYC3 IL 4.63 –40°C to +85°C Pb-Free MIC809MUY MIC809MYC3 IM 4.38 –40°C to +85°C Pb-Free MIC809JUY MIC809JYC3 IJ 4.00 –40°C to +85°C Pb-Free MIC809TUY MIC809TYC3 IT 3.08 –40°C to +85°C Pb-Free MIC809SUY MIC809SYC3 IS 2.93 –40°C to +85°C Pb-Free MIC809RUY MIC809RYC3 IR 2.63 –40°C to +85°C Pb-Free MIC810LUY MIC810LYC3 JL 4.63 –40°C to +85°C Pb-FreeJL 4.63 –40°C to +85°C Pb-FreeJL MIC810MUY MIC810MYC3 JM 4.38 –40°C to +85°C Pb-Free MIC810JUY MIC810JYC3 JJ 4.00 –40°C to +85°C Pb-Free MIC810TUY MIC810TYC3 JT 3.08 –40°C to +85°C Pb-Free MIC810SUY MIC810SYC3 JS 2.93 –40°C to +85°C Pb-Free MIC810RUY MIC810RYC3 JR 2.63 –40°C to +85°C Pb-Free Note: Contact factory for SC70 packaged Pb-free options.. MIC809LU MIC809LBC3 IL 4.63 –40°C to +85°C Standard MIC809MU MIC809MBC3 IM 4.38 –40°C to +85°C Standard MIC809JU MIC809JBC3 IJ 4.00 –40°C to +85°C Standard MIC809TU MIC809TBC3 IT 3.08 –40°C to +85°C Standard MIC809SU MIC809SBC3 IS 2.93 –40°C to +85°C Standard MIC809RU MIC809RBC3 IR 2.63 –40°C to +85°C Standard MIC810LU MIC810LBC3 JL 4.63 –40°C to +85°C Standard MIC810MU MIC810MBC3 JM 4.38 –40°C to +85°C Standard MIC810JU MIC810JBC3 JJ 4.00 –40°C to +85°C Standard MIC810TU MIC810TBC3 JT 3.08 –40°C to +85°C Standard MIC810SU MIC810SBC3 JS 2.93 –40°C to +85°C Standard MIC810RU MIC810RBC3 JR 2.63 –40°C to +85°C Standard Threshold Operating Marking Voltage Temp. Range MIC809LU MIC809LBC3 IL 4.63 –40°C to +85°C Standard MIC809MU MIC809MBC3 IM 4.38 –40°C to +85°C Standard MIC809JU MIC809JBC3 IJ 4.00 –40°C to +85°C Standard MIC809TU MIC809TBC3 IT 3.08 –40°C to +85°C Standard MIC809SU MIC809SBC3 IS 2.93 –40°C to +85°C Standard MIC809RU MIC809RBC3 IR 2.63 –40°C to +85°C Standard MIC810LU MIC810LBC3 JL 4.63 –40°C to +85°C Standard MIC810MU MIC810MBC3 JM 4.38 –40°C to +85°C Standard MIC810JU MIC810JBC3 JJ 4.00 –40°C to +85°C Standard MIC810TU MIC810TBC3 JT 3.08 –40°C to +85°C Standard MIC810SU MIC810SBC3 JS 2.93 –40°C to +85°C Standard MIC810RU MIC810RBC3 JR 2.63 –40°C to +85°C Standard 4.63 –40°C to +85°C Pb-Free 4.38 –40°C to +85°C Pb-Free 4.00 –40°C to +85°C Pb-Free 3.08 –40°C to +85°C Pb-Free 2.93 –40°C to +85°C Pb-Free 2.63 –40°C to +85°C Pb-Free 4.63 –40°C to +85°C Pb-Free 4.38 –40°C to +85°C Pb-Free 4.00 –40°C to +85°C Pb-Free 3.08 –40°C to +85°C Pb-Free 2.93 –40°C to +85°C Pb-Free 2.63 –40°C to +85°C Pb-Free Lead Finish MIC809LU MIC809LBC3 IL 4.63 –40°C to +85°C Standard MIC809MU MIC809MBC3 IM 4.38 –40°C to +85°C Standard MIC809JU MIC809JBC3 IJ 4.00 –40°C to +85°C Standard MIC809TU MIC809TBC3 IT 3.08 –40°C to +85°C Standard MIC809SU MIC809SBC3 IS 2.93 –40°C to +85°C Standard MIC809RU MIC809RBC3 IR 2.63 –40°C to +85°C Standard MIC810LU MIC810LBC3 JL 4.63 –40°C to +85°C Standard MIC810MU MIC810MBC3 JM 4.38 –40°C to +85°C Standard MIC810JU MIC810JBC3 JJ 4.00 –40°C to +85°C Standard MIC810TU MIC810TBC3 JT 3.08 –40°C to +85°C Standard MIC810SU MIC810SBC3 JS 2.93 –40°C to +85°C Standard MIC810RU MIC810RBC3 JR 2.63 –40°C to +85°C Standard 4.63 –40°C to +85°C Pb-Free 4.38 –40°C to +85°C Pb-Free 4.00 –40°C to +85°C Pb-Free 3.08 –40°C to +85°C Pb-Free 2.93 –40°C to +85°C Pb-Free 2.63 –40°C to +85°C Pb-Free 4.63 –40°C to +85°C Pb-Free 4.38 –40°C to +85°C Pb-Free 4.00 –40°C to +85°C Pb-Free 3.08 –40°C to +85°C Pb-Free 2.93 –40°C to +85°C Pb-Free 2.63 –40°C to +85°C Pb-Free MIC809LU MIC809LBC3 IL 4.63 –40°C to +85°C Standard MIC809MU MIC809MBC3 IM 4.38 –40°C to +85°C Standard MIC809JU MIC809JBC3 IJ 4.00 –40°C to +85°C Standard MIC809TU MIC809TBC3 IT 3.08 –40°C to +85°C Standard MIC809SU MIC809SBC3 IS 2.93 –40°C to +85°C Standard MIC809RU MIC809RBC3 IR 2.63 –40°C to +85°C Standard MIC810LU MIC810LBC3 JL 4.63 –40°C to +85°C Standard MIC810MU MIC810MBC3 JM 4.38 –40°C to +85°C Standard MIC810JU MIC810JBC3 JJ 4.00 –40°C to +85°C Standard MIC810TU MIC810TBC3 JT 3.08 –40°C to +85°C Standard MIC810SU MIC810SBC3 JS 2.93 –40°C to +85°C Standard MIC810RU MIC810RBC3 JR 2.63 –40°C to +85°C Standard MIC809LUY MIC809LYC3 MIC809MUY MIC809MYC3 MIC809JUY MIC809JYC3 MIC809TUY MIC809TYC3 MIC809SUY MIC809SYC3 MIC809RUY MIC809RYC3 MIC810LUY MIC810LYC3 MIC810MUY MIC810MYC3 MIC810JUY MIC810JYC3 MIC810TUY MIC810TYC3 MIC810SUY MIC810SYC3 MIC810RUY MIC810RYC3 Threshold Operating Marking Voltage Temp. Range MIC809LU MIC809LBC3 IL 4.63 –40°C to +85°C Standard MIC809MU MIC809MBC3 IM 4.38 –40°C to +85°C Standard MIC809JU MIC809JBC3 IJ 4.00 –40°C to +85°C Standard MIC809TU MIC809TBC3 IT 3.08 –40°C to +85°C Standard MIC809SU MIC809SBC3 IS 2.93 –40°C to +85°C Standard MIC809RU MIC809RBC3 IR 2.63 –40°C to +85°C Standard MIC810LU MIC810LBC3 JL 4.63 –40°C to +85°C Standard MIC810MU MIC810MBC3 JM 4.38 –40°C to +85°C Standard MIC810JU MIC810JBC3 JJ 4.00 –40°C to +85°C Standard MIC810TU MIC810TBC3 JT 3.08 –40°C to +85°C Standard MIC810SU MIC810SBC3 JS 2.93 –40°C to +85°C Standard MIC810RU MIC810RBC3 JR 2.63 –40°C to +85°C Standard 4.63 –40°C to +85°C Pb-Free 4.38 –40°C to +85°C Pb-Free 4.00 –40°C to +85°C Pb-Free 3.08 –40°C to +85°C Pb-Free 2.93 –40°C to +85°C Pb-Free 2.63 –40°C to +85°C Pb-Free 4.63 –40°C to +85°C Pb-Free 4.38 –40°C to +85°C Pb-Free 4.00 –40°C to +85°C Pb-Free 3.08 –40°C to +85°C Pb-Free 2.93 –40°C to +85°C Pb-Free 2.63 –40°C to +85°C Pb-Free MIC810 3-Lead SOT23 MIC810 3-Lead SC70

Absolute Maximum Ratings(1) Operating Ratings(2) Operating Temperature Range Electrical Characteristics(4) For typical values, VCC = 5V for MIC8_L/M/J, VCC = 3.3V for MIC8_S/T, VCC = 3V for MIC8_R; TA = 3V for MIC8_R; TA = 3V for MIC8_R; T = 25°C, A = 25°C, A bold values indicate –40°C ≤ TA≤ TA≤ T ≤ +85°C; unless noted.A ≤ +85°C; unless noted.A Symbol Parameter Condition Min Typ Max Units VCC Operating Voltage Range T A Operating Voltage Range T A Operating Voltage Range T = 0°C to 70°C SOT-23 package A = 0°C to 70°C SOT-23 package A 1.4 5.5 V TA TA T = –40°C to 85°C SOT-23 package A = –40°C to 85°C SOT-23 package A 1.6 5.5 V TA TA T = –40°C to 85°C SC70 package A = –40°C to 85°C SC70 package A 1 5.5 V ICC Supply Current MIC809L/M/J, MIC810L/M/J SOT-23 Package 9 15 µA For SC-70 Package: MIC809L/M/J, 5 15 µA MIC810L/M/J VCC < 3.6V, MIC809R/S/T, MIC810R/S/T 6 10 µA SOT-23 package For SC-70 Package: VCC < 3.6V, MIC809R/S/T, MIC810R/S/T 5 10 µA VTH Reset Voltage Threshold MIC809L, MIC810L 4.50 4.63 4.75 V MIC809M, MIC810M 4.25 4.38 4.50 V MIC809J, MIC810J 3.89 4.00 4.10 V MIC809T, MIC810T 3.00 3.08 3.15 V MIC809S, MIC810S 2.85 2.93 3.00 V MIC809R, MIC810R 2.55 2.63 2.70 V tRST Reset Timeout Period RST Reset Timeout Period RST 140 240 560 ms VOH /RESET Output Voltage ISOURCE = 800µA, MIC809L/M/J VCC–1.5V V MIC809 ISOURCE = 500µA, MIC809R/S/T 0.8×VCC V VOL /RESET Output Voltage MIC809 VOL /RESET Output Voltage MIC809 VOL CC = VTH min., ISINK = 3.2mA, MIC809L/M/J 0.4 V V CC = VTH min., ISINK = 1.2mA, MIC809R/S/T 0.3 V V CC > 1.4V, ISINK = 50µA, TA = 50µA, TA = 50µA, T = 0°C to +70°C A = 0°C to +70°C A 0.3 V \ For SC-70 Package: V CC = 1V, ISINK = 50µA 0.3 V T A T A T = –40°C to 85°CA = –40°C to 85°CA V CC > 1.6V, ISINK = 50µA, TA = 50µA, TA = 50µA, T = –40° to +85°C A = –40° to +85°C A 0.3 V VOH RESET Output Voltage MIC810 1.8V < V CC < VTH min., ISOURCE = 150µA 0.8×VCC V VOL RESET Output Voltage MIC810 IOL RESET Output Voltage MIC810 IOL SINK = 3.2mA, MIC810L/M/J 0.4 V ISINK = 1.2mA, MIC810R/S/T 0.3 V Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 4. Specifi cation for packaged product only. Symbol Parameter Condition Min Typ Max Units Operating Voltage Range T T T Supply Current MIC809L/M/J, MIC810L/M/J SOT-23 Package 9 V SOT-23 package MIC809R/S/T, MIC810R/S/T Reset Voltage Threshold MIC809L, MIC810L MIC809M, MIC810M MIC809J, MIC810J MIC809T, MIC810T MIC809S, MIC810S MIC809R, MIC810R Reset Timeout Period /RESET Output Voltage I MIC809 I /RESET Output Voltage MIC809 V V V \ For SC-70 Package: V T V RESET Output Voltage MIC810 1.8V < V RESET Output Voltage MIC810 I I Symbol Parameter Condition Min Typ Max Units Operating Voltage Range T T T Supply Current MIC809L/M/J, MIC810L/M/J SOT-23 Package 9 V SOT-23 package MIC809R/S/T, MIC810R/S/T Reset Voltage Threshold MIC809L, MIC810L MIC809M, MIC810M MIC809J, MIC810J MIC809T, MIC810T MIC809S, MIC810S MIC809R, MIC810R Reset Timeout Period /RESET Output Voltage I MIC809 I /RESET Output Voltage MIC809 V V V \` For SC-70 Package: V T V RESET Output Voltage MIC810 1.8V < V RESET Output Voltage MIC810 I I Symbol Parameter Condition Min Typ Max Units Supply Current MIC809L/M/J, MIC810L/M/J SOT-23 Package 9 < 3.6V, MIC809R/S/T, MIC810R/S/T 6 = 3.2mA, MIC809L/M/J = 1.2mA, MIC809R/S/T = 0°C to +70°C A = –40° to +85°C = 3.2mA, MIC810L/M/J = 1.2mA, MIC810R/S/T Symbol Parameter Condition Min Typ Max Units 5.5 Supply Current MIC809L/M/J, MIC810L/M/J SOT-23 Package 9 < 3.6V, MIC809R/S/T, MIC810R/S/T 6 4.63 4.38 4.00 3.08 2.93 2.63 240 V V = 3.2mA, MIC809L/M/J = 1.2mA, MIC809R/S/T = 0°C to +70°C A = –40° to +85°C V = 3.2mA, MIC810L/M/J = 1.2mA, MIC810R/S/T Symbol Parameter Condition Min Typ Max Units 5.5 V V V Symbol Parameter Condition Min Typ Max Units V V V µA µA µA V V V V V V ms V V V V V V V V V V

-Reset Threshold (V) VCC (3) RESET (2) RESET (MIC810) GND (1) RESET GENERATOR Timing Diagram VCC VTH VTH /RESET tRST tRST Reset Timing Diagram

The /RESET (or RESET) pin is asserted whenever VCC falls below the reset threshold voltage. The /RESET pin remains asserted for a period of 140ms after V CC has risen above the reset threshold voltage. The reset function ensures the microprocessor is properly reset and powers up in a known condition after a power failure. /RESET will remain valid with VCC as low as 1.4V (1V for SC-70 package). VCC Transients The MIC809/810 are relatively immune to negative-going VCC glitches below the reset threshold. Typically, a negative-going transient 125mV below the reset threshold with a duration of 20µs or less (SC70 package) will not cause a reset. Interfacing to Bidirectional Reset Pins The MIC809/810 can interface with µPs with bidirectional reset pins by connecting a 4.7kΩ resistor in series with the MIC809/810 output and the µP reset pin. /RESET Valid at Low Voltage A resistor can be added from the /RESET pin to ground to ensure the /RESET output remains low with V CC down to 0V. A 100kΩ resistor connected from the /RESET to ground is recommended. The resistor should be small enough to pull-down any stray leakage currents and large enough not to load the reset output. See Figure below. VCC RESET µP RESET VCC MIC809 VCC 100K Reset Valid to VCC = 0V

Package Information

0.15 (0.006) 0.076 (0.0030) 0.41 (0.016) 0.13 (0.005) 3.05 (0.120) 2.67 (0.105) 0.445 (0.0175) TYP 3 PLACES 2.50 (0.098) 2.10 (0.083) 1.40 (0.055) 1.19 (0.047) 0.10 (0.004) 0.013 (0.0005) 1.15 (0.045) 0.76 (0.030) DIMENSIONS: MM (INCH) 2.36 (0.093) 2.28 (0.090) CL CL 3-lead SOT-23 (M3) 3-Lead SC-70 (C3) MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifi cations at any time without notifi cation to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a signifi cant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated.