SE810 datasheet(3/6 Pages) SEAWARD

Part #	SE810

Description	3-Pin Microprocessor Reset Monitor

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Manufacturer	SEAWARD [Seaward Electronics Inc.]

Direct Link	http://www.seawardinc.com

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Revision 7/28/2009

Preliminary and all contents are subject to change without prior notice.

3

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

ISINK = 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 dissipation 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 while Vcc is below the reset voltage

threshold and for 150msec(typ) after Vcc rises above reset threshold

3

Vcc

Supply Voltage (typ.)

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