SE810 SEAWARD | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

Features

¾ Precision V CC Monitor for 2.8V, 3.0V, 3.3V, and 5.0V Supplies ¾ 150mSec typical RESET Output Delay. ¾ Low 7 μA Supply Current typical. ¾ V CC Transient Immunity ¾ Small SOT-23 Package and TO-92 Package ¾ No External Components ¾ ESD rating is 7KV(HBM). ¾ Wide Operating Temperature: -40°C to 125°C ¾ 100% Lead (Pb)-Free Pin Configuration Application ¾ Computers ¾ Embedded systems ¾ Battery powered equipment ¾ Critical µP power supply monitoring Application Diagram GND GND Vcc Vcc Vcc C=0. 1uF SE810 RESET RESET INPUT PROCESSOR

Preliminary and all contents are subject to change without prior notice. SE810 3-Pin Microprocessor Reset Monitor (Preliminary) Absolute Maximum Ratings(1) Parameter Symbol Value Units Input Voltage V CC 5.5 V Output Voltage RESET -0.3 to (V CC + 0.3) V Input Current 20 mA Output Current I OUT 20 mA Power Dissipation P D Internally Limited (3) Output Short Circuit Duration Infinite Thermal Resistance, Junction-to-Ambient ΘJA 230 °C/W Operating Temperature Range T A -40~+125 ℃ Lead Temperature (Soldering, 10 sec.) 260 °C Junction Temperature T J -40 to +125 °C Storage Temperature T S -60 to +150 °C Operating Rating(2) Parameter Symbol Value Units Supply Input Voltage V CC +2.0V to +5.5 V Junction Temperature T J -40 to +125 °C Ordering Information Marking Information SE810xS S810xa• Suffix Reset VCC threshold(V) L 4.63 M 4.38 J 4.00 T 3.08 S 2.93 R 2.63 The “x” denotes a suffix for VCC threshold. The last character is the batch number. A dot on top right corner is for lead-free process. Ordering Information Marking Information SE810Z SE810Z XXXX-LF Suffix Reset VCC threshold(V) Z 2.30 XXXX is the batch number. Lead-free package is indicated by LF after XXXX.

Preliminary and all contents are subject to change without prior notice. SE810 3-Pin Microprocessor Reset Monitor (Preliminary)

Electrical Characteristics

Vcc=5V for L/M/J ;3.3V for T/S ;3.0V for R ,TA = 25°C, unless otherwise specified. Symbol Parameter Condition Min Typ Max Unit VCC Input Voltage 2.0 5.5 V ICC Supply Current -- 7 10 μA VTH Reset Threshold SE810L-4.63V SE810M-4.38V SE810J-4.00V SE810T-3.08V SE810S-2.93V SE810R-2.63V SE810R-2.30V 4.51 4.27 3.90 3.00 2.85 2.56 2.18 4.63 4.38 4.00 3.08 2.93 2.63 2.25 4.75 4.49 4.10 3.16 3.00 2.70 2.33 V Reset Threshold Temperature Coefficient(4) -- 30 -- ppm/°C VCC to Reset Delay VCC = VTH to (VTH – 100mV) -- 20 -- μsec Reset Active Timeout Period -- 150 msec VOL RESET Output Voltage Low I SINK = 1.2mA -- -- 0.4 V VOH RESET Output Voltage High ISOURCE = 800μA 0.8VCC -- -- V 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: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) = (TJ(MAX) – TA)/ΘJA. Exceeding the maximum allowable power dissipati on will result in excessive die temperature, and the regulator will go into thermal shutdown. See “Thermal Consideration” section for details Note 4: RESET threshold temperature coefficient is the worst case voltage change divided by the total temperature range. PIN DESCRIPTION: Pin No. Symbol Description

1 GND Ground

2 RESET RESET output remains high wh ile Vcc is below the reset voltage

threshold and for 150msec(typ) after Vcc rises above reset threshold 3 Vcc Supply Voltage (typ.)

Preliminary and all contents are subject to change without prior notice. SE810 3-Pin Microprocessor Reset Monitor (Preliminary) Typical Performance Characteristics T-delay VS Temperature 100 150 200 250 300 350 400 -50 -25 0 25 50 75 100 125 150 Temperature(℃) Reset Active Timeout Period (ms) Vth VS Temperature 2.90 2.92 2.94 2.96 2.98 3.00 3.02 -50 -25 0 25 50 75 100 125 150 Temperature(℃) Rset Threshold(V)

Preliminary and all contents are subject to change without prior notice. SE810 3-Pin Microprocessor Reset Monitor (Preliminary) OUTLINE DRAWING SOT-23 B C A D E F J G H K L MIN MAX MIN MAX A 0.110 0.120 2.80 3.04 B 0.047 0.055 1.20 1.40 C 0.083 0.104 2.10 2.64 D 0.035 0.040 0.8 9 1.03 E 0.070 0.080 1.7 8 2.05 F 0.018 0.024 0.4 5 0.60 G 0.015 0.020 0.3 7 0.51 H 0.0005 0.004 0.013 0.10 J 0.034 0.040 0.887 1.0 2 K 0.003 0.007 0.085 0.1 8 L - 0.027 - 0.6 9 DIMN INCHES MM DIMENSIONS OUTLINE DRAWING TO-92 A B D E G F H K J M I NM A XM I NM A X A 0.175 0.205 4.445 5.207 B 0.170 0.210 4.318 5.334 E 0.500 0.610 12.70 15.50 F 0.016 0.021 0.407 0.533 G 0.045 0.055 1.143 1.397 H 0.095 0.105 2.413 2.667 J 0.080 0.105 2.032 2.667 K 0.125 0.165 3.175 4.191 DIMN INCHES MM DIMENSIONS

Preliminary and all contents are subject to change without prior notice. SE810 3-Pin Microprocessor Reset Monitor (Preliminary) Contact Information Seaward Electronics Incorporated – China Section B, 2nd Floor, ShangDi Scientific Office Complex,#22 Shangdi Xinxi Rd Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Email: sales@seawardinc.com.cn Seaward Electronics Corporation – Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Email: sales@seawardinc.com.tw Seaward Electronics Incorporated – North America 1512 Centre Pointe Dr. Milpitas, CA95035, USA Tel: 1-408-821-6600 Last Updated - 7/28/2009