GS809C21EUE [VISHAY]

Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SOT-23, 3 PIN;


型号：	GS809C21EUE
厂家：	VISHAY
描述：	Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SOT-23, 3 PIN 光电二极管
文件：	总6页 (文件大小：99K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

GS809C and GS810C

Microprocessor Reset Monitors

Pin Configuration

SOT-23 (Top View)

Description

• The GS809C and 810C are system supervisor

circuits designed to monitor V in digital systems

GND

and provide a reset signal to the host processor

when necessary. No external components are

required.

• When the processor power supply voltage drops

below the reset threshold, the reset output is driven

Reset

Output

active, in less than 40µs (T ). Reset is main-

tained active for a time period (T ), after the V

rises above the threshold voltage.

• To prevent jitter, the reset threshold voltage has a

built-in hysteresis of 0.4% of V

Fig. 1 – Typical Application Diagram

V_CC

• The GS809C has an active-low reset output, while

the GS810C has an active-high reset output. Both

devices have push/pull output drives.

V_CC

Processor

V_CC

GS809C

• The reset signal is guaranteed valid, down to

Reset

Input

= 1.0V.

Reset

• Low supply current of 3µA makes these devices

well suited for battery powered applications. They

are designed to reject fast transients from causing

false resets.

GND

• Both devices are available in a space-saving

SOT-23 package.

Applications

Features

• Computers

• Tight reset voltage tolerances ± 1.5%

• 4 reset active timeout period options

• Low quiescent current: <3µA

• Battery Powered Equipment

• Critical uProcessor and uController power supply

monitoring

• 9 reset threshold options from 2.1V to 4.63V

• Reset output guaranteed down to 1.0V

• No external components

• V Transient immunity

• Wide temperature range –40°C to +85°C

1 of 6

10/22/01

GS809C and GS810C

Microprocessor Reset Monitors

Ordering Information

Reset Timeout

Period

Reset Active Low

Default: 210mS

E: 150mS

GS809CxxEUx

GS810CxxEUx

D: 30mS

A: 1.5mS

Reset Active High

Reset Voltage

Options

_th= 4.63V

M V_th= 4.38V

_th= 4.0V

_th= 3.08V

_th= 2.93V

27 V_th= 2.7V

_th= 2.63V

24 V_th= 2.4V

21 V_th= 2.1V

Please contact your local General Semiconductor Sales Office for availability of other Threshold Voltage options.

Marking Information

X XX XX

Date Code

Year --Week

Threshold Voltage

26: 2.63V 38: 3.8V 46: 4.63V Etc.

No letters

A: GS809C,

1.5mS

L: GS810C,

1.5mS

D: GS809C, 30.0mS

E: GS809C, 150.0mS

G: GS809C, 210.0mS

Q: GS810C, 30.0mS

R: GS810C, 150.0mS

S: GS810C, 210.0mS

2 of 6

GS809C and GS810C

Microprocessor Reset Monitors

Absolute Maximum Ratings⁽¹⁾

Parameter

Symbol

Value

Unit

Supply Voltage

V_cc

6.0

–0.3 to (V_cc+ 0.3)

Reset/Reset

Input Current, V_cc

V/µS

°C

Output Current, Reset/Reset

dV/dT (V_cc)

100

Operating Temperature Range

Storage Temperature Range

T_A

–40 to +85

–65 to +150

T_stg

°C

Power Dissipation (T_A≤ 70°C)

SOT-23 (Derate 4mW/°C above 70°C)

P_D

260

Note: (1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

Electrical Characteristics T_A= 25°C unless otherwise noted.

Parameter

Symbol

Test Conditions

Min

Typ

–

Max

5.5

3.0

5.0

Unit

V_ccRange

V_RANGE

T_A= –40 to +85°C

Vcc = 3.0V

–

µA

Supply Current

I_CC

Vcc=3.0V, T_A= –40 to +85°C

–

V_THNOM–1.5% V_THNOMV_THNOM+1.5%

Reset Threshold

V_TH

T_A= –40 to +85°C V_THNOM–2.0% V_THNOMV_THNOM+2.0%

Threshold Hysteresis

V_{TH HIST}

0.4

%V_TH

Reset Threshold

Temperature Coefficient

–

ppm/°C

Reset Output Voltage Low

809C/810C

809C V_cc< V_{TH min}

810C V_cc> V_{TH max}

T_A= –40 to +85°C

I_SINK= 1.2mA

V_OL

–

0.5

Reset Output Voltage High

809C/810C

809C V_cc> V_{TH max}

810C V_cc< V_{TH min}

T_A= –40 to +85°C

I_SOURCE= 0.5mA

V_OH

0.8V_CC

–

V_CC= V_TH– 100mV

T_A= –40 to +85°C

V_CCto Reset Delay

T_D1

T_D2

–

µS

Reset Timeout Period

T_A= –40 to +85°C

T_D2NOM–35%

T_D2NOM

T_D2NOM+35%

3 of 6

GS809C and GS810C

Microprocessor Reset Monitors

Ratings and

Characteristic Curves^(T_A= 25°C unless otherwise noted)

Fig. 2 – Timing Diagram

50%

Reset

50%

Fig. 3 – Transient Rejection

140

120

100

Supply (V ) Transients

These devices have a certain immunity to fast negative

going transients. The graph titled “Transient Rejection”

shows the maximum allowable transient amplitude and

duration to avoid triggering an unintended reset. As

shown in the graph shorter transients can have larger

amplitudes without triggering resets.

0.01

0.1

Transient Amplitude (V)

4 of 6

GS809C and GS810C

Microprocessor Reset Monitors

Ratings and

Characteristic Curves^(T_A= 25°C unless otherwise noted)

Fig. 4 – Reset Time vs.Temperature

Fig. 5 – I vs.Temperature

2.35

220

215

2.30

2.25

210

205

200

195

190

GS809CREU

2.20

2.15

2.10

--50

--20

100

130

100

--50

--20

100

130

Temperature (°C)

Fig. 6 – Reset V vs.Temperature

Fig. 7 – I vs. V

CC CC

2.650

2.648

2.646

1.6

1.2

0.8

0.4

85°C

2.644

2.642

2.640

2.638

2.636

2.634

2.632

2.630

40°C

GS809CREU

0°C

--50

--20

100

Temperature (°C)

V_CC(V)

Fig. 8 – TD1 Delay vs.Temperature

--40

--20

Temperature (°C)

5 of 6

GS809C and GS810C

Microprocessor Reset Monitors

Ratings and

Characteristic Curves^(T_A= 25°C unless otherwise noted)

Fig. 9 – Threshold Hysteresis

vs.Temperature

Fig. 10 – Reset V vs.Temperature

0.5

0.265

0.260

0.255

0.4

0.3

0.2

0.1

0.250

0.245

0.240

0.235

0.230

0.225

0.220

GS809CREU

--40

--20

100

--50

--20

100

130

Temperature (°C)

SOT-23 Case Outline

3.10

2.70

Top View

Mounting Pad Layout

0.031 (0.8)

3.00

2.60

1.80

1.40

0.035 (0.9)

0.079 (2.0)

1.90

(TYP.)

Dimensions in millimeters

1.40

0.037 (0.95)

1.00

0.037 (0.95)

0.25

0.10

1.25

0.70

θ1 9°

1°

0.55

0.35

0.15

0.50

0.35

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