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产品型号TPS3125L30的Datasheet PDF文件预览

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

features

typical applications

Minimum Supply Voltage of 0.75 V

Supply Voltage Supervision Range:

Applications Using Low Voltage DSPs,

Microcontrollers or Microprocessors

– 1.2 V, 1.5 V, 1.8 V (TPS3123, TPS3124,

TPS3125)

– 3 V (TPS3125 Devices only)

Wireless Communication Systems

Portable/Battery-Powered Equipment

Programmable Controls

Power-On Reset Generator With Fixed

Delay Time of 180 ms

Intelligent Instruments

Industrial Equipment

Manual Reset Input (TPS3123 and TPS3125)

Watchdog Timer Retriggers the RESET

Notebook/Desktop Computers

Automotive Systems

Output at V

≥ V

Supply Current of 14 µA (Typ)

SOT23–5 Package

DBV PACKAGE

(TOP VIEW)

Temperature Range . . . –40°C to 85°C

RESET

GND

TPS3123

2.5 V

1.2 V

WDI

RESET

GND

TPS3124

TPS3125J12

GND

RESET

TMS320UVC5402

WDI

RESET

WDI

RESET

GND

TPS3125

RESET

GND

TPS3823-25

GND

RESET

Figure 1. Typical Dual-Voltage DSP Application

description

The TPS3123, TPS3124, TPS3125 family of ultra-low voltage processor supervisory circuits provides circuit

initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on, RESET is asserted when the supply voltage (V ) becomes higher than 0.75 V. Thereafter,

the supply voltage supervisor monitors V and keeps RESET output active as long as V remains below the

thresholdvoltageV . Aninternaltimerdelaysthereturnoftheoutputtotheinactivestate(high)toensureproper

system reset. The delay time, t

= 180 ms starts after V

has risen above the threshold voltage V .

dtyp

DD IT

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

description (continued)

When the supply voltage drops below the threshold voltage V , the output becomes active (low) again. No

external components are required. All the devices of this family have a fixed-sense threshold voltage V set

by an internal voltage divider.

The TPS3123-xx and TPS3125-xx devices incorporate a manual reset input, MR. A low level at MR causes

RESET to become active. The TPS3124-xx devices do not have the input MR, but include a high-level output

RESET same as the TPS3125-xx devices. In addition the TPS3123-xx and TPS3124-xx have a watchdog timer

that need to be triggered periodically by a positive or negative transition at WDI. When the supervising system

fails to retrigger the watchdog circuit within the time-out interval t

= 0.8 s, RESET output becomes active for

tout

the time period t . This event also reinitializes the watchdog timer.

The circuits are available in a 5-pin SOT23-5 package. The TPS3123, TPS3124, TPS3125 devices are

characterized for operation over a temperature range of –40°C to 85°C.

PACKAGE INFORMATION STANDARD VERSIONS

DEVICE NAME

THRESHOLD VOLTAGE

MARKING

PBNI

PBOI

PBPI

†

‡

TPS3123J12DBVR

TPS3123J12DBVT

1.08 V

1.40 V

1.62 V

1.08 V

1.40 V

1.62 V

1.08 V

1.40 V

1.62 V

2.64 V

†

‡

TPS3123G15DBVR

TPS3123G15DBVT

†

‡

TPS3123J18DBVR

TPS3124J12DBVR

TPS3124G15DBVR

TPS3123J18DBVT

TPS3124J12DBVT

TPS3124G15DBVT

PBQI

PBRI

PBSI

†

‡

–40°C to 85 C

†

‡

TPS3124J18DBVR

TPS3125J12DBVR

TPS3125G15DBVR

TPS3124J18DBVT

TPS3125J12DBVT

TPS3125G15DBVT

†

‡

PBTI

†

‡

PBUI

PBVI

†

‡

TPS3125J18DBVT

TPS3125J18DBVR

†

‡

TPS3125L30DBVR

TPS3125L30DBVT

PBXI

†

‡

The DBVR passive indicates tape and reel of 3000 parts.

The DBVT passive indicates tape and reel of 250 parts.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

ordering information application specific versions

TPS312

12 DBV

Reel

Package

Nominal Supply Voltage

Typical Reset Threshold Voltage

Functionality

Family

TYPICAL RESET

THRESHOLD

NOMINAL SUPPLY

DEVICE NAME

VOLTAGE, V

DEVICE NAME

NOM

VOLTAGE–V

IT–

TPS312xx12DBV

TPS312xx15DBV

TPS312xx18DBV

TPS312xx30DBV

1.2 V

1.5 V

1.8 V

3.0 V

TPS312xAxxDBV

TPS312xBxxDBV

TPS312xCxxDBV

TPS312xDxxDBV

TPS312xExxDBV

TPS312xFxxDBV

TPS312xGxxDBV

TPS312xHxxDBV

TPS312xIxxDBV

TPS312xJxxDBV

TPS312xKxxDBV

TPS312xLxxDBV

TPS312xMxxDBV

TPS312xNxxDBV

TPS312xOxxDBV

–1%

NOM

–2%

–3%

–4%

–5%

–6%

–7%

–8%

–9%

NOM

–10%

–11%

–12%

–13%

–14%

–15%

NOM

NOTE: Ten standard versions will be available at product introduction.

For the application specific versions contact the local TI sales office for availability and lead time.

Function Tables

TPS3123

TPS3124

RESET RESET

TPS3125

VDD > V

RESET

VDD > V

RESET RESET

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

functional block diagram

Device Power Supply

†

RESET

Reset Logic

+ Timer

GND

Reference

Voltage

Watch Dog

Logic +

Timer

Transition

Detector

‡

WDI

†

‡

TPS3123 and TPS3125 Only

TPS3123 and TPS3124 Only

TPS3124 and TPS3125 Only

timing diagram TPS3123 and TPS3125

<0,85 V

RESET

Output Undefined

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

timing diagram TPS3123 and TPS3124

<0,85 V

(TPS3123)

WDI

RESET

tout

Output Undefined

* = WDI Disabled

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

†

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Supply voltage, V

(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6 V

All other pins (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 3.6 V

Maximum low output current, I

Maximum high output current, I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 mA

Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA

Output clamp current, I

(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA

O O DD

Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table

Operating free-air temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C

Storage temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

stg

Soldering temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to GND.

DISSIPATION RATING TABLE

DERATING FACTOR

≤ 25°C

= 70°C

T = 85°C

PACKAGE

POWER RATING

ABOVE T = 25°C

POWER RATING POWER RATING

DBV

437 mW

3.5 mW/°C

280 mW 227 mW

recommended operating conditions at specified temperature range

MIN

MAX

3.3

UNIT

= 0°C to 85°C

0.75

0.85

Supply voltage, V

= –40°C to 85°C

3.3

Input voltage, V

+0.3

High-level input voltage, V

0.7×V

Low-level input voltage, V

0.3×V

Input transition rise and fall rate at WDI, ∆t/∆V

Operating free-air temperature range, T

µs/V

°C

–40

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

MR pullup resistor (internal)

kΩ

WDI

WDI = V

= 3.3 V

–1

–20

–1

–55

High-level input current

Low-level input current

µA

MR = 0.7×V

WDI = 0 V,

MR = 0 V,

= 3.3 V

WDI

= 3.3 V

–80

–170

= 1.5 V,

= –1 mA

= –4.5 mA

= –8 µA

= –1 mA

RESET

= 3.3 V,

= 0.75 V,

= 1.5 V,

= 0.75 V,

= 1.5 V,

= 3.3 V,

High-level output voltage

Low-level output voltage

0.8×V

= 15 µA

= 1.4 mA

= 3 mA

RESET

0.2×V

0.4

1.12

1.45

1.68

2.71

TPS312xJ12

TPS312xG15

TPS312xJ18

TPS312xL30

1.04

1.35

1.56

2.57

1.08

1.40

1.62

2.64

Negative-going input threshold

voltage (see Note 2)

= –40°C to 85°C

IT–

1 V < V

IT–

< 1.4 V

<2 V

< 3 V

Hysteresis at V

input

1.4 V < V

IT–

hys

2 V < V

IT–

= 0.75 V

= 3.3 V

= 0.75 V

= 3.3 V

TPS3123-xx

TPS3124-xx

WDI = V

MR unconnected

Supply current

µA

TPS3125-xx

(see Note 3)

MR unconnected

Input capacitance at MR, WDI

V = 0 V to 3.3 V

NOTES: 2. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 µF) should be placed near the supply terminal.

3. The supply current during delay time t is typical 5 µA higher.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

timing requirements at R = 1 MΩ, C = 50 pF, T = 25°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

At V

= V

+0.2 V,

= V

–0,2 V

IT–

Pulse width

At MR

µs

≥ V

+0.2 V,

= 0.3xV

V = 0.7×V

IH DD

IT–

At WDI

0.1

switching characteristics at R = 1 MΩ, C = 50 pF, T = 25°C

PARAMETER

TEST CONDITIONS

MIN

TYP MAX

UNIT

≥ V +0.2 V,

IT–

Watchdog time out

Delay time

0.8

1.4

2.1

260

0.1

tout

See timing diagram

> V +0.2 V,

IT–

See timing diagram

100

180

MR to RESET delay

(TPS3123/25 only)

Propagation delay time, high-to-low-level output

PHL

≥ V

= 0.2 × V

= 0.8 × V

+0.2 V,

IT–

µs

MR to RESET delay

(TPS3125 only)

Propagation delay time, low-to-high-level output

Propagation delay time, high-to-low-level output

Propagation delay time, low-to-high-level output

0.1

PLH

PHL

PLH

to RESET delay

= V

–0.2 V,

+0.2 V

IT–

= V

µs

(TPS3124/25 only)

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

TYPICAL CHARACTERISTICS

SUPPLY CURRENT

LOW-LEVEL OUTPUT VOLTAGE

LOW-LEVEL OUTPUT CURRENT

SUPPLY VOLTAGE

750

500

250

= 25°C

TPS3123J12

= 0.75 V

TPS3123J12

= 85°C

= 25°C

= 0°C

3.3

100

150

200

250

– Supply Voltage – V

– Low-Level Output Current – µA

Figure 2

Figure 3

LOW-LEVEL OUTPUT VOLTAGE

LOW-LEVEL OUTPUT CURRENT

LOW-LEVEL OUTPUT VOLTAGE

LOW-LEVEL OUTPUT CURRENT

850

800

1.5

1.25

TPS3123J12

= 0.85 V

TPS3125L30

= 1.5 V

MR = Open

= 85°C

700

600

500

400

= 25°C

= 0°C

= –40°C

0.75

0.5

0.25

300

200

100

200

300

400

500

– Low-Level Output Current – µA

– Low-Level Output Current – mA

Figure 4

Figure 5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

TYPICAL CHARACTERISTICS

LOW-LEVEL OUTPUT VOLTAGE

HIGH-LEVEL OUTPUT VOLTAGE

LOW-LEVEL OUTPUT CURRENT

HIGH-LEVEL OUTPUT CURRENT

3.3

1.6

TPS3125L30

= 3.3 V

TPS3123J12

= 1.5 V

MR = Open

1.4

1.2

= 85°C

2.75

2.5

= 25°C

= 0°C

2.25

= –40°C

T = –40°C

= 85°C

1.75

1.5

1.25

0.8

= 25°C

0.6

0.4

= 0°C

0.75

0.5

0.25

0.2

–1

–2

–3

–4

–5

– Low-Level Output Current – mA

– High-Level Output Current – mA

Figure 6

Figure 7

HIGH-LEVEL OUTPUT VOLTAGE

HIGH-LEVEL OUTPUT CURRENT

NORMALIZED INPUT THRESHOLD VOLTAGE

FREE-AIR TEMPERATURE

3.4

1.005

1.004

TPS3123J12

TPS312xJ12

= 3.3 V

MR = Open

2.75

2.5

2.25

1.003

1.002

= 85°C

1.75

1.5

1.25

= –40°C

= 25°C

1.001

= 0°C

0.75

0.5

0.999

0.25

0.998

–5

–10

–15

–20

–25

–30

–40

–20

– High-Level Output Current – mA

– Free-Air Temperature – °C

Figure 8

Figure 9

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

TYPICAL CHARACTERISTICS

NORMALIZED INPUT THRESHOLD VOLTAGE

MINIMUM PULSE DURATION

THRESHOLD OVERDRIVE

FREE-AIR TEMPERATURE

1.005

1.004

4.5

TPS312xL30

MR = Open

= 2.64 V

= 25°C

TPS312xL30

3.5

1.003

1.002

2.5

1.001

1.5

0.5

0.999

0.998

–40

–20

100

150

200

250

300

– Free-Air Temperature – °C

– Threshold Overdrive – mV

Figure 10

Figure 11

MINIMUM PULSE DURATION

THRESHOLD OVERDRIVE

3.5

MR = Open

= 1.08 V

= 25°C

TPS312xJ12

2.5

1.5

0.5

100

150

200

250

300

– Threshold Overdrive – mV

Figure 12

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15

TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

SLVS227 – AUGUST 1999

MECHANICAL DATA

DBV (R-PDSO-G5)

PLASTIC SMALL-OUTLINE

0,50

0,20

0,95

0,30

0,15 NOM

1,70

1,50

3,00

2,60

Gage Plane

3,00

2,80

0,25

0°–8°

0,55

0,35

Seating Plane

0,10

1,45

0,95

0,05 MIN

4073253-4/E 05/99

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice.

C. Body dimensions do not include mold flash or protrusion.

D. Falls within JEDEC MO-178

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IMPORTANT NOTICE

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue

any product or service without notice, and advise customers to obtain the latest version of relevant information

to verify, before placing orders, that information being relied on is current and complete. All products are sold

subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those

pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent

TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily

performed, except those mandated by government requirements.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF

DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL

APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR

WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER

CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO

BE FULLY AT THE CUSTOMER’S RISK.

In order to minimize risks associated with the customer’s applications, adequate design and operating

safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent

that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other

intellectual property right of TI covering or relating to any combination, machine, or process in which such

semiconductor products or services might be or are used. TI’s publication of information regarding any third

party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

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TPS3125L30DBVR产品参数

型号:	TPS3125L30DBVR
是否无铅：	不含铅
是否Rohs认证：	符合
生命周期：	Active
IHS 制造商：	ROCHESTER ELECTRONICS LLC
零件包装代码：	SOT-23
包装说明：	GREEN, PLASTIC, SOT-23, 5 PIN
针数：	5
Reach Compliance Code：	unknown
风险等级：	5.15
Is Samacsys：	N
其他特性：	MANUAL RESET INPUT; POWER-ON RESET GENERATOR
可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	R-PDSO-G5
JESD-609代码：	e4
长度：	2.9 mm
湿度敏感等级：	1
信道数量：	1
功能数量：	1
端子数量：	5
最高工作温度：	85 °C
最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY
封装代码：	LSSOP
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260
座面最大高度：	1.45 mm
最大供电电压 (Vsup)：	3.3 V
最小供电电压 (Vsup)：	0.85 V
标称供电电压 (Vsup)：	3 V
表面贴装：	YES
温度等级：	INDUSTRIAL
端子面层：	NICKEL PALLADIUM GOLD
端子形式：	GULL WING
端子节距：	0.95 mm
端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	1.6 mm
Base Number Matches：	1

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