STM6710 [STMICROELECTRONICS]

Low-voltage, high-accuracy, triple/quad voltage microprocessor supervisory circuit in SOT package;


型号：	STM6710
厂家：	ST
描述：	Low-voltage, high-accuracy, triple/quad voltage microprocessor supervisory circuit in SOT package
文件：	总20页 (文件大小：1262K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

STM6700, STM6710

Low-voltage, high-accuracy, triple/quad voltage microprocessor

supervisory circuit in SOT package

Datasheet

production data

• Low power consumption (< 35 µA)

• Reset timeout period 200 ms (typ.) - STM6710

• 5 µs propagation delay - STM6700

• Open drain RESET output with a weak pull-up

(10 µA)

• RESET - active low - valid to V1IN = 1 V or

V2IN = 1 V

• Immune to power supply transients

• Small 6-pin SOT23 package

• RoHS compliant

SOT23-6 (WB)

Applications

Features

• Telecommunications

• Set-top boxes

• Accurate monitoring of up to four supply

voltages

• Networking equipment

• Server/workstations

• Precision factory set reset threshold options for

1.8 V, 2.5 V, 3.0 V, 3.3 V and 5.0 V

• Desktop and notebook computers

• Data storage equipment

• Adjustable input threshold voltage = 0.62 V

with 1.5% accuracy

Table 1. Device summary

V1IN

(V)

V2IN

(V)

V3IN

(V)

V4IN

(V)

Power supply

tolerance

Temperature

range

Order code

Package

STM6710DWB6F

STM6710FWB6F

STM6710FWB7F

STM6710KWB6F

STM6710LWB6F

STM6710LWB7F

1.8

2.5

Adj.

1.8

-40 to 85 °C

-40 to 105 °C

-40 to 85 °C

-40 to 105 °C

3.3

SOT23-6

Adj.

10%

1.8

Adj.

September 2020

DocID16887 Rev 4

1/20

This is information on a product in full production.

www.st.com

Contents

STM6700, STM6710

Contents

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pinout and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1

4.2

4.3

4.4

RESET output configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Adjustable thresholds (input configurations) . . . . . . . . . . . . . . . . . . . . . . . 9

Unused inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Adding manual reset capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7.1

SOT23 - 6-lead small outline transistor package information . . . . . . . . . . 14

Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

STM6700 / STM6710 device selector guide . . . . . . . . . . . . . . . . . . . . . . 18

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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DocID16887 Rev 4

STM6700, STM6710

Description

The STM6710 is a precision voltage monitoring supervisor with the capability to monitor

triple/quad voltages and combine competitive reset threshold accuracy with low power

consumption.

Factory-trimmed reset threshold options for monitoring 5.0 V, 3.3 V, 2.5 V and 1.8 V supplies

with –5% and –10% tolerances are available.

If a monitored supply voltage input falls below the minimum voltage threshold, a single

active low output is asserted, triggering a system reset.

This device can be configured to support an external manual reset input using minimal

external components.

Monitoring up to four different voltages in a small 6-lead SOT23 package, the STM6710

devices can help to lower system cost, reduce board space requirements, and increase the

reliability of multi-voltage systems.

Low V_CCdetection circuitry protects the user's system from low voltage conditions, resetting

the system when V_CCor any of the other monitored power supply voltages fall below their

respective minimum voltage thresholds. The reset signal remains asserted until all of these

voltages return to proper operating levels and stabilize.

STM6710 includes internally fixed monitoring voltages for 5.0 V, 3.3 V, 3.0 V, 2.5 V and 1.8

V supplies with –5% and –10% tolerances.

This device functions as a triple monitoring voltage supervisor (STM6700) when V2IN is

used as V_CC

The output is open drain with a weak internal pull-up to the monitored V2IN supply (or V_CC

in the case of STM6710Q) of typically 10 µA. Once all voltages rise above the selected

threshold level, the STM6710 reset signal remains low for the reset timeout period of

200 ms (typical). The STM6700 acts as a voltage detector with a propagation delay of 5 µs

after all monitored voltages exceed their thresholds.

The STM6710 output remains valid as long as V1IN or V2IN exceeds 1 V. For the STM6700

and STM6710 the condition is to have V_CCabove 2 V.

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Functional description

STM6700, STM6710

Functional description

Figure 1. Functional block diagram

1. The STM6700 and STM6710Q are powered via the V2IN input which is the supply voltage. When this pin is

, the input is not monitored.

Figure 2. Logic diagram

V2IN / V

V1IN

(1)

STM6700

STM6710

V3IN

V4IN

RESET

AM04617v1

1. Open drain

4/20

DocID16887 Rev 4

STM6700, STM6710

Functional description

Table 2. Signal names

Function (STM6710 / STM6700)

Name

Type

V1IN

V2IN

Input

Input voltage 1

Input voltage 2 and device power supply pin

Input/supply

For the triple monitor voltage STM6700 and for STM6710Q, this pin

is the V_CCsupply pin and it is not monitored

V_CC

V3IN

V4IN

GND

Input voltage 3

Input voltage 4

Ground

Input

Supply

Active low, open drain RESET output. Output goes low when any

input drops below the specified threshold. Once all inputs rise above

their threshold voltages, RESET remains low for typical 200 ms

(STM6710) before going high.

RESET

Output

For the triple monitor (STM6700) it remains low for 5 µs

(propagation delay - no t_REC).

The open drain RESET has a weak (10 µA) internal pull-up to V2IN

(STM6710) or V_CC(STM6700/STM6710Q).

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Pinout and pin description

STM6700, STM6710

Pinout and pin description

Figure 3. Pinout SOT23-6

SOT23-6

(1)

V1IN

RESET

GND

STM6700

STM6710

V2IN (V_CC

)

V4IN

V3IN

AM04618v1

1. Open drain

2. For the STM6700 and STM6710Q, pin 2 is a fixed V , thereby making it a triple voltage reset, while the

STM6710 is a quad voltage reset.

V1IN, V3IN,V4IN (VxIN)

The VxIN pins are used for nominal input voltages for 1.8 V, 2.5 V and 5.0 V supplies. The

voltage at this pin is compared against an internal factory-programmed voltage trip point,

Vrst.

RESET is first asserted low when the device is initially powered and VxIN < 1 V and then at

any time thereafter when VxIN falls below Vrst. The device is designed with typical

hysteresis of 0.3% with respect to its threshold to help prevent oscillation due to noise and is

immune to brief power supply transients.

V2IN

The V2IN is used to power the STM6710 device. In normal operations V2IN is also

monitored. For STM6710Q and STM6700 variations this pin is the V_CCpower supply but is

not monitored.

Ground (V

)

This pin (GND) is the ground pin for the power supply and is tied to V_SS

RESET

The RESET output is an open drain output that asserts low whenever a monitored supply

falls below the minimum threshold. STM6710 provides an extended reset timeout period of

typically 200 ms.

6/20

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STM6700, STM6710

Device operation

The STM6710 is capable of monitoring up to 4 voltages in a multisupply application. The

device is available in several preset voltage thresholds for power supplies of 1.8 V, 2.5 V,

3.0 V, 3.3 V and 5.0 V. The STM6710 is powered by the V2IN pin which is also a monitored

voltage, thus making this a quad voltage monitor. The STM6710Q and STM6700 use this

pin as V_CCwhich is not monitored and thereby limits these devices to three adjustable

voltage inputs. If any of the monitored input voltage falls below its associated threshold, the

active low reset output is asserted and remains low as long as V1IN or V2IN remains above

1.0 V.

Figure 4. Hardware hookup (typical application diagram)

STM6710

V1IN

V2IN (V_CC

)

SUPPLIES

TO BE

MONITORED

µP

RESET

V3IN

V4IN

GND

AM04620v1

4.1

RESET output configuration

The RESET output asserts low if a monitored input voltage drops below its threshold. This is

an open drain with a weak internal pull-up to V2IN or the V_CCsupply, and is typically 10 µA.

However, many applications may not require an external pull-up resistor. In case a pull-up

resistor is required and is connected to a voltage ranging from 0 to 5.5 V (as shown in

Figure 5), it can overdrive the weak internal pull-up. The STM6710 has built-in circuitry to

prevent this reverse current flow to V2IN under this condition.

Figure 5. Interface to external pull-up using a different supply voltage

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Device operation

STM6700, STM6710

Figure 6. RESET output diagram

VxIN

THx

RESET

90%

10%

AM04622v1

8/20

DocID16887 Rev 4

STM6700, STM6710

Device operation

4.2

Adjustable thresholds (input configurations)

The STM6700/STM6710 may be configured to monitor several options with adjustable reset

thresholds. The threshold voltages at each adjustable input VxIN is typically 0.62 V. Thus to

monitor a voltage > 0.62 V, a resistor divider network as shown in Figure 7 can be used.

The STM6710 allows users to customize the minimum voltage sense level with adjustable

reset thresholds. The threshold voltage at each adjustable input VxIN is typically 0.62 V.

For example, the user can adjust the voltage input threshold (VTHx) for V1IN, V3IN and

V4IN inputs. To do this, connect an external resistor divider network to the VxIN pin in order

to set the trip point to some other voltage above 620 mV according to Equation 1 and

Equation 2 which is also shown in Figure 7.

Equation 1

(R1 + R2)

--------------------------

V_THx= 0.62V ×

or solved in terms of R1:

Equation 2

V_THX





R1 = R2 --------------- – 1





0.62V

The STM6700/STM6710 have an input current of less than ±0.2 µA (±0.4 µA for VIN1)

on their adjustable inputs, therefore resistor values of up to 100 kW can be used for R2

with < 1 % error.

Figure 7. Adjustable thresholds monitoring

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Device operation

STM6700, STM6710

4.3

Unused inputs

Connect unused monitor inputs to a supply voltage greater in magnitude than their specified

threshold voltages. For unused VxIN adjustable inputs connect a 1 MW resistor between the

unused input and V2IN or (V_CC) to limit the bias current. Use V2IN for normal operation

(device power supply pin). Do not connect unused monitor inputs to ground or allow them to

float.

4.4

Adding manual reset capability

Figure 8 shows a circuit which can be used to add manual reset capability to the STM6710.

Depressing the push button switch short-circuits the analog input to ground and initiates

a RESET pulse. The switch must be open for at least 140 ms in order to deassert the

RESET output. No external switch debounce is required. A small capacitor may be used to

improve noise immunity. Figure 8 shows the addition of the manual reset capability.

Figure 8. Adding manual reset capability for STM6710 input

V1IN

V2IN

V3IN

RESET

V4IN

(ADJUSTABLE

INPUT)

GND

AM04624v1

10/20

DocID16887 Rev 4

STM6700, STM6710

Maximum ratings

Stressing the device above the ratings listed in Table 3 may cause permanent damage to

the device. These are stress ratings only and operation of the device at these or any other

conditions above those indicated in Table 4 of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability. Refer

also to the STMicroelectronics™ SURE program and other relevant quality documents.

Table 3. Absolute maximum ratings

Symbol

Parameter

Value

Unit

T_STG

Storage temperature (V_CCoff)

Lead solder temperature for 10 seconds

Input or output voltage

–55 to 150

°C

(1)

T_SLD

260

–0.3 to V_CC+ 0.3

–0.3 to + 7

V_IO

V_CC

I_O

Supply voltage

Output current

q_JA

Thermal resistance (junction to ambient)

N/A

°C/W

1. Reflow at peak temperature of 260 °C. The time above 255 °C must not exceed 30 seconds.

DocID16887 Rev 4

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DC and AC parameters

STM6700, STM6710

DC and AC parameters

This section summarizes the DC and AC characteristics of the device. The parameters in

Table 5 are derived from tests performed under the test conditions. Designers should check

that the operating conditions in their circuit match the operating conditions when relying on

the quoted parameters.

Table 4. Operating and AC measurement conditions

Parameter

Conditions

Unit

V2IN supply voltage (T_A= 0 to T_max °C)

V2IN supply voltage (T_A= -40 to T_max °C)

1.0 to 5.5

1.2 to 5.5

2.0 to 5.5

-40 to 105

_CCsupply voltage (for STM6700 and STM6710Q)

Ambient operating temperature (T_A)

°C

Table 5. DC and AC characteristics

Test conditions

Alt.

Symbol

Parameter

Min.

Typ.⁽¹⁾Max.

Unit

T_A= 0 to T_max °C

1.0

1.2

5.5

V2IN Operating voltage

T_A= –40 to T_max °C

V_CC

STM6700 and

V_CC

2.0

5.5

STM6710Q

VxIN nominal input voltage

(1.8 V, 2.5 V, 5.0 V supplies)

V2IN = nominal input voltage

for 3.0 V and 3.3 V supplies

115

0.4

0.2

IxIN

Input current

µA

V1IN = 0 to 0.85 V

(for adjustable thresholds)

V3IN, V4IN = 0 to 0.85 V

(for adjustable thresholds)

STM6700 and STM6710Q only

V_CC= 5.5 V

I_CC

I2N

I2N input current

Voltage thresholds

5 V (–5%)

5 V (–10%)

3.3 V (–5%)

3.3 V (–10%)

3.0 V (–5%)

3.0 V (–10%)

2.5 V (–5%)

2.5 V (–10%)

1.8 V (–5%)

4.500

4.250

3.000

2.850

2.700

2.550

2.250

2.130

1.620

4.630 4.750

4.380 4.450

3.080 3.150

2.930 3.000

2.780 2.850

Vrst

V_TH

VxIN falling

2.630

2.70

2.320 2.380

2.190 2.250

1.670 1.710

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DocID16887 Rev 4

STM6700, STM6710

DC and AC parameters

Table 5. DC and AC characteristics (continued)

Alt.

Symbol

Parameter

VxIN falling

V1IN, V2IN, V3IN,

Test conditions

Min.

Typ.⁽¹⁾Max.

Unit

Vrst

V_TH

1.8 V (–10%)

1.530

1.580 1.620

Vrstxin

V_HYST

V_REFV4IN adj. reset

threshold voltage

VxIN decreasing

0.611

0.620 0.629

Hysteresis of V_TH

0.3

% V_TH

Reset threshold

TCVTH temperature

coefficient

ppm/°C

Reset

V_THto reset

t_RPD

VxIN falling at 10 mV/µs from V_TH

to (V_TH–50 mV)

t_RD

µs

asserted delay

Reset timeout

delay

t_RP

t_PD

t_REC

STM6710

140

200

280

µs

Propagation delay

STM6700 only

V2IN, V_CC= 5 V, I_SINK= 2 mA

V2IN, V_CC= 2.5 V, I_SINK= 1.2 mA

0.3

0.4

V_OL

RESET output low

V2IN = 1.0 V, I_SINK= 50 µA,

T_A= 0 to T_max °C

0.3

V_CC³ 2.0 V, I_SOURCE= 6 µA, RESET

deasserted (STM6700)

0.8 x

V_CC

RESET output

high

V_OH

V_CC³ V_TH, I_SOURCE= –6 µA, RESET

deasserted

0.8 x

V2IN

RESET output

high source

current

I_OH

V2IN ³ 2.0 V, RESET deasserted

µA

1. V2IN = 1 V to 5.5 V, T = –40 to T_max °C, unless otherwise stated. Typical values are at V2IN = 3.0 V to 3.3 V,

T = +25 °C. T_max = 85 °C or 105 °C depending on the product version.

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Package mechanical data

STM6700, STM6710

Package mechanical data

In order to meet environmental requirements, ST offers these devices in different grades of

ECOPACK packages, depending on their level of environmental compliance. ECOPACK

specifications, grade definitions and product status are available at: www.st.com.

ECOPACK is an ST trademark.

7.1

SOT23 - 6-lead small outline transistor package information

Figure 9. SOT23 – 6-lead small outline transistor package outline

7049714_F

14/20

DocID16887 Rev 4

STM6700, STM6710

Package mechanical data

Table 6. SOT23 – 6-lead small outline transistor package mechanical data

Dimensions

Symbol

inches

Typ.

Min.

Typ.

Max.

Min.

Max.

0.9

1.45

0.10

1.3

0.035

0.057

0.0039

0.0512

0.02

0.9

0.35

0.09

2.8

1.5

0.035

0.014

0.004

0.11

0.5

0.2

0.008

0.120

0.0689

3.05

1.75

0.059

0.95

0.037

2.6

0.1

0°

0.102

0.004

0°

0.118

0.024

10°

0.6

10°

Figure 10. SOT23-6 landing pattern

DocID16887 Rev 4

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Package mechanical data

STM6700, STM6710

Figure 11. Carrier tape for SOT23-6

TOP COVER

TAPE

CENTER LINES

OF CAVITY

USER DIRECTION OF FEED

AM03073v1

Table 7. Carrier tape dimensions for SOT23-6

Bulk

qty.

Package

P₀

P₂

A₀

B₀

K₀

P₁

Unit

8.00

1.50

1.75

4.00

2.00

3.50

3.23

3.17

1.37

4.00 0.254

SOT23-6 +0.30/ +0.10/

–0.10 –0.00

mm 3000

±0.10 ±0.10 ±0.10 ±0.05 ±0.10 ±0.10 ±0.10 ±0.10 ±0.013

16/20

DocID16887 Rev 4

STM6700, STM6710

Part numbering

Table 8. Ordering information scheme

STM6710

Example:

Device type

STM6700 ⁽¹⁾

STM6710

Threshold combination

Refer to Table 9

Package

WB = SOT23-6

Temperature range

6 = –40 to 85 °C

7 = –40 to 105 °C

Shipping method

F = ECOPACK^®package, tape and reel packing

1. Contact local ST sales office for availability

For other options, or for more information on any aspect of this device, please contact the

ST sales office nearest you.

DocID16887 Rev 4

17/20

STM6700 / STM6710 device selector guide

STM6700, STM6710

STM6700 / STM6710 device selector guide

The STM6700/STM6710 are designed for various voltage thresholds and configurations,

however not all variations are shown in Table 9. Please contact local ST sales office for

availability.

Table 9. STM6700/STM6710 device selector summary

Monitored pins

Supply

Supply t_REC

Top

marking

Order code

tolerance

(%)

Comments

V1IN V2IN V3IN V4IN

(ms)

(V)

STM6710AWB6F

STM6710BWB6F

STM6710CWB6F

STM6710DWB6F

STM6710EWB6F

D6BA

D6BB

D6BC

D6BD

D6BE

2.5

Contact ST sales office

Adj.

1.8

2.5

Available

Contact ST sales office

STM6710FWB6F Adj.

1.8

D6BF

Available

STM6710FWB7F

D7BF

D6BG

D6BH

D6BI

3.3

STM6710GWB6F

STM6710HWB6F

Adj.

2.5

Contact ST sales office

V2IN

200

STM6710IWB6F

STM6710JWB6F

D6BJ

STM6710KWB6F

STM6710LWB6F

D6BK

Available

1.8

D6BL

D7BL

D6BM

D6BN

D6BO

D6BP

D6BQ

Adj.

STM6710LWB7F

Adj.

STM6710MWB6F

STM6710NWB6F

STM6710OWB6F

STM6710PWB6F

STM6710QWB6F

2.5

1.8

Contact ST sales office

V_CCAdj.

V_CC

N/A

18/20

DocID16887 Rev 4

STM6700, STM6710

Revision history

Table 10. Document revision history

Revision Changes

Date

09-Dec-2009

Initial release.

Added Table 4 and cross-reference to Table 4 in Section 5,

updated Section 1, Table 9, minor corrections throughout

document.

15-May-2012

Added order code STM6710FWB7F and updated temperature

range throughout document from “-40 °C to 85 °C” to “-40 °C to

105 °C”.

11-Feb-2015

24-Sep-2020

Table 1 and Table 9: replaced “part number/name” with “order

code”.

Table 9: removed order code STM6700WB6F

Updated Table 1: Device summary and Table 9:

STM6700/STM6710 device selector summary.

DocID16887 Rev 4

19/20

STM6700, STM6710

IMPORTANT NOTICE – PLEASE READ CAREFULLY

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and

improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on

ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order

acknowledgement.

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or

the design of Purchasers’ products.

No license, express or implied, to any intellectual property right is granted by ST herein.

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.

ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other

product or service names are the property of their respective owners.

Information in this document supersedes and replaces information previously supplied in any prior versions of this document.

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DocID16887 Rev 4

STM6710 [STMICROELECTRONICS]

相关型号：

STM6710DWB6F

STM6710FWB6F

STM6710FWB7F

STM6710KWB6F

STM6710LWB6F

STM6710LWB7F

STM6710NWB6F

STM6717

STM6717LTGWB6E

STM6717LTGWB6F

STM6717LTGWY6E

STM6717LTGWY6F