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具有看门狗功能的TPL5010芯片资料
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具有看门狗功能的TPL5010芯片资料
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本文档旨在为方便起见,提供有关 TI 产品中文版本的信息,以确认产品的概要。 有关适用的官方英文版本的最新信息,请访问 www.ti.com,其内容始终优先。 TI 不保证翻译的准确
性和有效性。 在实际设计之前,请务必参考最新版本的英文版本。
English Data Sheet: SNAS651
TPL5010
ZHCSEK6A –JANUARY 2015–REVISED SEPTEMBER 2018
具具有有看看门门狗狗功功能能的的 TPL5010 纳纳瓦瓦级级功功耗耗系系统统计计时时器器
1
1 特特性性
1
• 电源电压范围为 1.8V 至 5.5V
• 电压为 2.5V 时,电流消耗为 35nA(典型值)
• 可选计时间隔:100ms 至 7200s
• 计时器精度:1%(典型值)
• 可通过电阻选择时间间隔
• 看门狗功能
• 手动复位
2 应应用用
• 电池供电系统
• 物联网 (IoT)
• 出入探测
• 篡改检测
• 家庭自动化传感器
• 温度调节装置
• 消费类电子产品
• 远程传感器
• 白色家电
3 说说明明
TPL5010 纳瓦级计时器是一款超低功耗计时器,其看
门狗功能专为占空比、电池供电型 应用 (比如物联网
中的应用)中的系统唤醒功能而设计。其中许多 应用
需要使用 μC,因此,通常希望将 μC 维持在低功耗模
式以更大限度节省电流,而仅在某些时间间隔内唤醒以
收集数据或为中断提供服务。虽然 μC 的内部计时器可
用于系统唤醒,但它可能单独消耗数微安的总系统电
流。
TPL5010 仅消耗 35nA,可替代集成式 μC 计时器的功
能。这样就可将 μC 置于低得多的功耗模式,将内部计
时器关闭,并在被 TPL5010 中断时仅返回到激活模
式。TPL5010 通过提供近两个数量级的功率节省,可
以大幅减小能量采集或无线传感器 应用中所使用的电
池尺寸。TPL5010 提供 100ms 至 7200s 的可选时间
间隔,适用于中断驱动型 应用。出于安全考虑,某些
标准(如 EN50271)要求实现看门狗功能。TPL5010
不仅实现了看门狗功能,而且几乎没有增加功耗。
TPL5010 采用 6 引脚小外形尺寸晶体管 (SOT23) 封
装。
器器件件信信息息
(1)
器器件件编编号号 封封装装 封封装装尺尺寸寸((标标称称值值))
TPL5010 SOT23 (6) 3.00mm × 3.00mm
(1) 如需了解所有可用封装,请参阅产品说明书末尾的可订购产品
附录。
简简化化应应用用电电路路原原理理图图
2
TPL5010
ZHCSEK6A –JANUARY 2015–REVISED SEPTEMBER 2018
www.ti.com.cn
版权 © 2015–2018, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 2
5 器器件件比比较较表表............................................................... 3
6 Pin Configuration and Functions......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Ratings ........................... 5
7.4 Thermal Information ................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Timing Requirements ............................................... 7
7.7 Typical Characteristics.............................................. 8
8 Detailed Description.............................................. 9
8.1 Overview ................................................................... 9
8.2 Functional Block Diagram ......................................... 9
8.3 Feature Description................................................... 9
8.4 Device Functional Modes........................................ 10
8.5 Programming .......................................................... 10
9 Application and Implementation ........................ 16
9.1 Application Information............................................ 16
9.2 Typical Application ................................................. 16
10 Power Supply Recommendations ..................... 18
11 Layout................................................................... 18
11.1 Layout Guidelines ................................................. 18
11.2 Layout Example .................................................... 18
12 器器件件和和文文档档支支持持 ..................................................... 19
12.1 接收文档更新通知 ................................................. 19
12.2 社区资源................................................................ 19
12.3 商标 ....................................................................... 19
12.4 静电放电警告......................................................... 19
12.5 术语表 ................................................................... 19
13 机机械械、、封封装装和和可可订订购购信信息息....................................... 19
4 修修订订历历史史记记录录
Changes from Original (January 2015) to Revision A Page
• 添加了 TPL5x1x
系列纳瓦级计时器
表 ................................................................................................................................... 3
• Changed T
ADC
and R
D
equations in the Quantization Error section..................................................................................... 14
• 添加了
接收文档更新通知
部分 ............................................................................................................................................... 19
3
TPL5010
www.ti.com.cn
ZHCSEK6A –JANUARY 2015–REVISED SEPTEMBER 2018
Copyright © 2015–2018, Texas Instruments Incorporated
5 器器件件比比较较表表
TPL5x1x 系系列列纳纳瓦瓦级级计计时时器器
器器件件编编号号 特特殊殊 特特性性 输输出出 评评分分
TPL5010 低功耗计时器、看门狗功能 高电平有效 目录
TPL5010Q 低功耗计时器、看门狗功能 高电平有效 汽车
TPL5111
低功耗计时器、电源门控
MOS 驱动器
高电平有效 目录
TPL5110
低功耗计时器、电源门控
MOS 驱动器
低电平有效 目录
TPL5010
VDD
GND
RSTn
WAKE
DELAY/
M_RST
DONE
1
2
3 4
5
6
4
TPL5010
ZHCSEK6A –JANUARY 2015–REVISED SEPTEMBER 2018
www.ti.com.cn
Copyright © 2015–2018, Texas Instruments Incorporated
(1) G= Ground, P= Power, O= Output, I= Input.
6 Pin Configuration and Functions
DDC Package
6-Lead SOT-23
Top View
Pin Functions
PIN
TYPE
(1)
DESCRIPTION APPLICATION INFORMATION
NO. NAME
1 VDD P Supply voltage
2 GND G Ground
3 DELAY/
M_RST
I Time Interval set and Manual Reset Resistance between this pin and GND is used to
select the time interval. The reset switch is also
connected to this pin.
4 DONE I Logic Input for watchdog
functionality
Digital signal driven by the µC to indicate successful
processing of the WAKE signal.
5 WAKE O Timer output signal generated every
t
IP
period.
Digital pulsed signal to wake up the µC at the end of
the programmed time interval.
6 RSTn O Reset Output (open drain output) Digital signal to RESET the µC, pullup resistance is
required
5
TPL5010
www.ti.com.cn
ZHCSEK6A –JANUARY 2015–REVISED SEPTEMBER 2018
Copyright © 2015–2018, Texas Instruments Incorporated
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The voltage between any two pins should not exceed 6V.
(3) The maximum power dissipation is a function of T
J
(MAX), θJA, and the ambient temperature, T
A
. The maximum allowable power
dissipation at any ambient temperature is PDMAX = (T
J
(MAX) - T
A
)/ θJA. All numbers apply for packages soldered directly onto a
printed-circuit board (PCB).
7 Specifications
7.1 Absolute Maximum Ratings
(1)
MIN MAX UNIT
Supply Voltage (VDD-GND) –0.3 6 V
Input Voltage at any pin
(2)
–0.3 VDD + 0.3 V
Input Current on any pin –5 +5 mA
Junction Temperature, TJ
(3)
150 °C
Storage Temperature, T
stg
–65 150 °C
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.2 ESD Ratings
VALUE UNIT
V
(ESD)
Electrostatic discharge
Human Body Model, per ANSI/ESDA/JEDEC JS-001
(1)
±1000
V
Charged-device model (CDM), per JEDEC specification JESD22-101
(2)
±250
7.3 Recommended Operating Ratings
MIN MAX UNIT
Supply Voltage (VDD-GND) 1.8 5.5 V
Temperature –40 105 °C
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report (SPRA953).
7.4 Thermal Information
THERMAL METRIC
(1)
TPL5010
UNITDDC (SOT-23)
6 PINS
R
θJA
Junction-to-ambient thermal resistance 163 °C/W
R
θJC(top)
Junction-to-case (top) thermal resistance 26 °C/W
R
θJB
Junction-to-board thermal resistance 57 °C/W
ψ
JT
Junction-to-top characterization parameter 7.5 °C/W
ψ
JB
Junction-to-board characterization parameter 57 °C/W
R
θJC(bot)
Junction-to-case (bottom) thermal resistance N/A °C/W
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