EM MICROELECTRONIC EM6325 User Manual

查询EM6325AX-1.3供应商

EM MICROELECTRONIC - MARIN SA

Reset Circuit with Manual Reset

Description

The EM6325 is an ultra-low current reset circuit available in a large variety of configurations and very small packages for maximum flexibility in all end-applications up to 125°C and using power supplies between 1.5V and 5.5V. This circuit monitors the supply voltage of any electronic system, and generates the appropriate reset signal after a fixed reset timeout period. The threshold defines the minimum allowed voltage which guarantees the good functionality of the system. When VDD rises above VTH, the output remains active for an additional delay time. This allows the system to stabilize before getting fully active. This circuit features a Manual Reset: an input that asserts

reset when pulled low (MR with internal pull-up). Small SC70-4L, SC70-5L and SOT23-5L packages as well as ultra-low supply current of 2.9μA make the EM6325 an ideal choice for portable and battery-operated devices.

Typical Application

V

DD

V

DD

RESET

EM6325

RESET

MR

GND

R

for open-drain version only

*

EXT

Block Diagram

V

DD

Voltage

Reference

MR

GND

Filter

Pin Description

SOT23-5L / SC70-5L SC70-4L

1 2

2 1 GND Ground

3 2 RESET

4 3

5 4 VDD Supply Voltage (5.5V max.)

*

+

-

Name Function

RESET

MR

V

DD

RESET

MPU, DSP

RESET

GND

Oscillator

Reset Logic

Active-low

then goes high after all reset conditions are deasserted or after

to high

Active-high RESET output. RESET remains high for the reset timeout period and

then goes low after all reset conditions are deasserted or after high Manual Reset input with an internal pull-up 15k

long as CMOS output or shorted to ground with a switch

RESET

RESET output. RESET remains low for the reset timeout period and

MR is low and for t

EM6325

Features

 Manual reset function

 200ms reset timeout period (1.6ms, 25ms, 1600ms on

request)

 Ultra-low supply current of 2.9μA (V

 Operating temperature range: -40°C to +125°C

 ±1.5% reset threshold accuracy

 11 reset threshold voltages V

TH

2.93V, 2.63V, 2.2V, 1.8V, 1.66V, 1.57V, 1.38V, 1.31V

 3 reset output options:

Active-low

Active-high

 Immune to short negative V

RESET push-pull

RESET open-drain

RESET push-pull

transients

DD

 Guaranteed Reset valid down to 0.9V

 Threshold hysteresis: 2.1% of V

 Very small SOT23-5L, SC70-5L and SC70-4L

Applications

 Computers

 Servers and workstations

 Modems

 Wireless communication

 Metering

 Playstations

 PDA , Webpad  Automotive systems

Pin Configuration (top view)

RESET

GND

RESET

push-pull

1

2

3

push-pull / open-drain

SOT23-5 / SC70-5

top view

after MR returns high. MR can be driven with a

POR

V

5

DD

GND

MR

RESET

(RESET)

4

Ω resistor. Reset remains active as

=3.3V)

DD

: 4.63V, 4.4V, 3.08V,

TH

1

2

SC70-4

top view

MR goes from low

MR

V

4

DD

MR

3

goes from low to

1 www.emmicroelectronic.com

R

[

]

p

g

p

Ordering Information

EM6325 -

EM6325

+C X SP5B 2.9

Delay (t C = 200ms

A = 1.6ms D = 1600ms

Reset Output Type:

X = Active-low /RES push-pull 1.3 = 1.31V 2.6 = 2.63V Active-high RES push-pull 1.4 = 1.38V 2.9 = 2.93V Y = Active-low /RES o Active-hi Z = Active-hi

Packa

SP5B = SOT23-5, Ta SC5B = SC70-5, Ta SC4B = SC70-4, Ta

):

PO

h RES push-pull 1.7 = 1.66V 4.4 = 4.40V

h RES push-pull 1.8 = 1.80V 4.6 = 4.63V

e:

B = 25ms + = lead-free/green mold compliant

en-drain 1.6 = 1.57V 3.1 = 3.08V

e&Reel 3000 pcs e&Reel 3000 pcs e&Reel 3000 pcs

RoHS Compliance:

blank

= leaded

Reset Threshold Voltage (V

2.2 = 2.20V

):

TH

Top Marking

Package top marking below is for most parts in leaded package (first letter is “A”). For lead-free/green mold (RoHS) parts, the first letter of top marking begins with letter “B” instead of letter “A”. The underscore "_ _" refers to the four-letter code for the package (eg. SP5B, SC4B, …).

Part Number

EM6325AX__-1.3 ANAA EM6325BX__-1.3 ANBA EM6325CX__-1.3 ANCA EM6325DX__-1.3 ANDA EM6325AX__-1.4 ANAB EM6325BX__-1.4 ANBB EM6325CX__-1.4 ANCB EM6325DX__-1.4 ANDB EM6325AX__-1.6 ANAC EM6325BX__-1.6 ANBC EM6325CX__-1.6 ANCC EM6325DX__-1.6 ANDC EM6325AX__-1.7 ANAD EM6325BX__-1.7 ANBD EM6325CX__-1.7 ANCD EM6325DX__-1.7 ANDD EM6325AX__-1.8 ANAE EM6325BX__-1.8 ANBE EM6325CX__-1.8 ANCE EM6325DX__-1.8 ANDE EM6325AX__-2.2 ANAF EM6325BX__-2.2 ANBF EM6325CX__-2.2 ANCF EM6325DX__-2.2 ANDF EM6325AX__-2.6 ANAG EM6325BX__-2.6 ANBG EM6325CX__-2.6 ANCG EM6325DX__-2.6 ANDG EM6325AX__-2.9 ANAH EM6325BX__-2.9 ANBH EM6325CX__-2.9 ANCH EM6325DX__-2.9 ANDH EM6325AX__-3.1 ANAJ EM6325BX__-3.1 ANBJ EM6325CX__-3.1 ANCJ EM6325DX__-3.1 ANDJ EM6325AX__-4.4 ANAK EM6325BX__-4.4 ANBK EM6325CX__-4.4 ANCK EM6325DX__-4.4 ANDK EM6325AX__-4.6 ANAL EM6325BX__-4.6 ANBL EM6325CX__-4.6 ANCL EM6325DX__-4.6 ANDL EM6325AY__-1.3 ANAM EM6325BY__-1.3 ANBM EM6325CY__-1.3 ANCM EM6325DY__-1.3 ANDM EM6325AY__-1.4 ANAN EM6325BY__-1.4 ANBN EM6325CY__-1.4 ANCN EM6325DY__-1.4 ANDN EM6325AY__-1.6 ANAP EM6325BY__-1.6 ANBP EM6325CY__-1.6 ANCP EM6325DY__-1.6 ANDP EM6325AY__-1.7 ANAQ EM6325BY__-1.7 ANBQ EM6325CY__-1.7 ANCQ EM6325DY__-1.7 ANDQ EM6325AY__-1.8 ANAR EM6325BY__-1.8 ANBR EM6325CY__-1.8 ANCR EM6325DY__-1.8 ANDR EM6325AY__-2.2 ANAS EM6325BY__-2.2 ANBS EM6325CY__-2.2 ANCS EM6325DY__-2.2 ANDS EM6325AY__-2.6 ANAT EM6325BY__-2.6 ANBT EM6325CY__-2.6 ANCT EM6325DY__-2.6 ANDT EM6325AY__-2.9 ANAU EM6325BY__-2.9 ANBU EM6325CY__-2.9 ANCU EM6325DY__-2.9 ANDU EM6325AY__-3.1 ANAV EM6325BY__-3.1 ANBV EM6325CY__-3.1 ANCV EM6325DY__-3.1 ANDV EM6325AY__-4.4 ANAW EM6325BY__-4.4 ANBW EM6325CY__-4.4 ANCW EM6325DY__-4.4 ANDW EM6325AY__-4.6 ANAX EM6325BY__-4.6 ANBX EM6325CY__-4.6 ANCX EM6325DY__-4.6 ANDX

Top

Marking

Part Number

Top

Marking

Part Number

Top

Marking

Part Number

Top

Marking

Standard Versions, Samples

Sample stock is generally held on standard versions (below) only. Non standard versions have a 30,000 pieces minimum

order quantity. Please contact factory for other versions not shown here and for availability of non standard versions.

EM6325AXSC4B-2.9

EM6325CXSC5B-2.9

EM6325CXSP5B-1.3

EM6325CXSP5B-2.6

EM6325CXSP5B-2.9

EM6325CXSP5B-3.1

EM6325CYSP5B-2.9

EM6325CYSP5B-4.6

EM6325DXSC4B-2.6

EM6325CXSP5B-4.6

2 www.emmicroelectronic.com

n

Absolute Maximum Ratings

Parameter Symbol Conditions

Voltage at VDD to GND VDD -0.3V to +6V Minimum voltage at any signal pin V Maximum voltage at any signal pi Electrostatic discharge max. to MIL-STD-883C method 3015.7 with ref. to V Max. soldering conditions T Storage Temperature Range T

Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction.

Handling Procedures

This device has built-in protection against high static

GND - 0.3V

MIN

V

VDD + 0.3V

MAX

V

2000V

SS

ESD

250°C x 10s

MAX

-65°C to +150°C

STG

voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the voltage range. Unused inputs must always be tied to a defined logic voltage level.

Operating Conditions

Parameter Symbol Min Max Unit

Supply voltage VDD 0.9 5.5 V Operating Temperature TA -40 +125 °C

EM6325

Electrical Characteristics

Unless otherwise specified: VDD= 0.9V to 5.5V, T

Parameter Symbol Conditions Min Typ Max Unit

Supply current (note 2) IDD

Threshold voltage (note 3)

Threshold hysteresis V

V

TH

T

HYS

Note 1: Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested. Note 3: Threshold voltage is specified for V

=-40°C to +125°C (note 1).

A

VDD=1.5V

VDD=3.3V

=5.0V

V

DD

+25°C - 4.6

-40°C to +125°C +25°C - 5.5

-40°C to +125°C +25°C - 6.3

-40°C to +125°C +25°C 1.290 1.330

EM6325 – 1.3

-40°C to +85°C 1.245 1.382

-40°C to +125°C 1.221 +25°C 1.359 1.401

EM6325 – 1.4

-40°C to +85°C 1.311 1.456

-40°C to +125°C 1.286 +25°C 1.546 1.594

EM6325 – 1.6

-40°C to +85°C 1.492 1.656

-40°C to +125°C 1.463 +25°C 1.635 1.685

EM6325 – 1.7

-40°C to +85°C 1.577 1.751

-40°C to +125°C 1.547 +25°C 1.773 1.827

EM6325 – 1.8

-40°C to +85°C 1.710 1.899

-40°C to +125°C 1.678 +25°C 2.167 2.233

EM6325 – 2.2

-40°C to +85°C 2.090 2.321

-40°C to +125°C 2.050 +25°C 2.591 2.669

EM6325 – 2.6

-40°C to +85°C 2.499 2.775

-40°C to +125°C 2.451 +25°C 2.886 2.974

EM6325 – 2.9

-40°C to +85°C 2.784 3.091

-40°C to +125°C 2.731 +25°C 3.034 3.126

EM6325 – 3.1

-40°C to +85°C 2.926 3.249

-40°C to +125°C 2.871 +25°C 4.334 4.466

EM6325 – 4.4

-40°C to +85°C 4.180 4.642

-40°C to +125°C 4.101 +25°C 4.561 4.699

EM6325 – 4.6

-40°C to +85°C 4.399 4.885

-40°C to +125°C 4.315

=+25°C -

A

falling.

DD

1.31

1.38

1.57

1.66

1.80

2.20

2.63

2.93

3.08

4.40

4.63

2.1%

2.3

2.9

3.4

•V

7

8.3

μA

9.6

1.387

1.461

1.663

1.758

1.906

V

2.330

2.785

3.103

3.262

4.660

4.903

- V

TH

3 www.emmicroelectronic.com

Electrical Characteristics

(continued)

EM6325

Unless otherwise specified: V

= 0.9V to 5.5V, T

DD

=-40°C to +125° C (note 1).

A

Parameter Symbol Conditions Min Typ Max Unit

EM6325C 155 200 224

Reset timeout period t

POR

VDD from 0V to V T

= +25°C

A

TH (typ)

+15%

(note 2 and 4)

EM6325A 0.7 1.6 3.8

EM6325B 19.4 25 28

ms

EM6325D 1240 1600 1792

Propagation delay time

to RESET (RESET) delay

V

DD

Open-drain RESET output Voltage

Push-pull RESET / RESET Output voltage

Output leakage current I MANUAL RESET (MR )

MR Input low

MR Input high

V

MR to Reset delay

Pulse width at MR (note 5)

MR Internal Pull-up resistor

t

P

V

OL

VOL

V

OH

Only for EM6325_Y (open-drain) - - 0.5

LEAK

low 0.3•V

MRT

high 0.7•VDD V

MRT

t

0.3

MD

t

PMD

R

T

MR

V

drops from V

DD

(note 2). T

= +25°C

A

VDD>1V

VDD>2.5V IOL=1.5mA - - 0.3

V

>5V IOL=3mA - - 0.35

DD

VDD>1V

TH (typ)

+0.2V to V

I

=100μA

OL

I

=100μA

OL

TH (typ)

-0.2V 2 130 255

μs

- - 0.3

V

- - 0.3

VDD>2.5V IOL=1.5mA - - 0.3

V

>5V IOL=3mA - - 0.35

DD

VDD>1V

I

=-30μA

OH

0.8 - -

V

VDD>2.5V IOH=-1.5mA 2 - -

V

>5V IOH=-3mA 4 - -

DD

μA

V

DD

T

= +25°C

A

1

=-40°C to +125°C 4.8 15 31

A

μs

k

Ω

Note 1: Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested. Note 2:

Note 4: Standard version for t

RESET (RESET) open.

is 200ms (typ), available at all times. Other option (1.6ms, 25ms, 1600ms) are available

POR

by mask option and upon minimum order quantity. Please contact EM sales.

Note 5: Pulse width must be greater than 1μs to ensure the

RESET

(RESET) to go active.

4 www.emmicroelectronic.com

Timing Waveforms

V

DD

V

TH

0.8V

logic "1"

MR

t

SEN

Overdrive

t

PMD

EM6325

V

HYS

t

logic "0"

logic "1"

RESET

t

POR

t

MD

logic "0"

logic "1"

RESET

t

POR

logic "0"

Note 6: t Note 7: Overdrive = V

Manual Reset Input

A logic low on it returns high. MR has an internal 15kΩ pull-up resistor, so it can be left open if unused. This input can be driven with CMOS logic levels or with open-drain outputs. Connect a normally open momentary switch from manual-reset function; debounce circuitry is integrated. If environment, connect a 0.1μF capacitor from MR to VSS to provide additional noise immunity (stronger external additional

pull-up resistor can also be added).

= Maximum Transient Duration. Please refer to figure on the next page.

SEN

MR asserts a reset. Reset remains asserted while MR is low, and for t

-VDD. Please refer to figure on the next page.

TH

MR is driven from long cable or the device is used in a noisy

(200ms nominal for EM6325C) after

POR

MR

to VSS to create a

t

P

t

5 www.emmicroelectronic.com

V

Typical Operating Characteristics

(Typical values are at TA=+25°C unless otherwise noted, MR ,

RESET

and RESET open.)

EM6325

7

6

[ uA ]

5

4

V

5 . 0 V

DD

3

V

1 . 5 V

2

DD

1

0

-50 -25 0 25 50 75 100 125

[ °C ]

I

vs. Temperature Propagation Time tP vs. Temperature

DD

200%

175%

150%

t

POR (°C)

t

POR (25°C)

125%

100%

75%

50%

25%

0%

-50 -25 0 25 50 75 100 125

[ °C ]

V

3 . 3

DD

250

200

[ us ]

150

100

50

0

-50 -25 0 25 50 75 100 125

[ °C ]

400

350

300

250

[ us ]

200

150

Reset occurs

above this line

100

50

0

1 10 100 1000

[ mV ]

Reset Timeout Period t (normalized with respect to t

vs. Temperature Maximum Transient Duration t

POR

) vs. Overdrive VTH-VDD

POR 25°C

SEN

8%

6%

4%

2%

0%

-2%

-4%

-6%

-8%

-50 -25 0 25 50 75 100 125

[°C]

Threshold Voltage Variation vs. Temperature (normalized)

6 www.emmicroelectronic.com

Package Information

EM6325

HE

PIN 1

D

A2

A1

SOT23-5L

A

C

b

E1

L

E

e

e1

D

E

e

b

e

SC70-5L

Q1

c

SYM BOL MIN TYP MAX

A 0.90 1.30 1.45 A1 0.05 0.08 0.15 A2 0.90 1.15 1.30 b0.35 0.50 C0.08 0.20 D 2.80 2.90 3.00 E 2.60 2.80 3.00 E1 1.50 1.75 e0.95 e1 1.90 L 0.45

Dimensions are in mm

SYMBOL MIN MAX

e

L

D1.802.20 b0.150.30

E1.151.35 HE 1.80 2.40 Q1 0.10 0.40 A2 0.80 1.00 A1 0.00 0.10

A0.801.10

c0.100.18

L0.100.30

0.65 BSC

A2

A

A1

NOTE:

y All dimensions are in millimeters y Dimensions are inclusive of plating y Dimensions are exclusive of mold flash & metal burr y All specifications comply to EIAJ SC70

7 www.emmicroelectronic.com

EM6325

D

e

SC70-4L

L

SYMBOL MIN MAX

e

e1

0.65 BSC

0.5 BSC

D1.802.20

b0.150.30

HE

E

b1 0.575 0.70

E1.151.35

HE 1.80 2.40

PIN 1

e1

Q1 0.10 0.40 A2 0.80 1.00 A1 0.00 0.10

Q1

c

A0.801.10

c0.100.18 L0.100.30

A2

b

b1

NOTE:

y All dimensions are in millimeters y Dimensions are inclusive of plating

A

y Dimensions are exclusive of mold flash & metal burr y All specifications comply to EIAJ SC70 y Even though the width of pin 2 on SC70-4L is slightly larger than on so-

A1

called 4-pin SC-82AB, the footprint of SC70-4L package is compatible with the footprint of SC-82AB package from other suppliers, and thus suitable for pin-to-pin replacement. Please check footprint on PCB.

Traceability for small packages

Due to the limited space on the package surface, the bottom marking contains a limited number of characters that provide only partial information for lot traceability. Full information for complete traceability is however provided on the packing labels of the product at delivery from EM. It is highly recommended that the customer insures full lot traceability of EM product in his final product.

EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized for use as components in life support devices or systems.

Product qualification is performed according to internal EM quality standards for industrial products. For any special requirement (eg. automotive grade) please contact EM Microelectronic-Marin S.A.

8 www.emmicroelectronic.com

WWW.ALLDATASHEET.COM

All Datasheets cannot be modified without permission.

This datasheet has been download from :

www.AllDataSheet.com

100% Free DataSheet Search Site.

Free Download.

No Register.

Fast Search System.

www.AllDataSheet.com

EM MICROELECTRONIC EM6325 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual