TPS3899-Q1 具有可编程感应和复位延迟以及按钮监视器的毫微功耗、精密电压监控器
- ZHCSNL0B April 2021 – January 2024 TPS3899-Q1
  
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TPS3899-Q1 具有可编程感应和复位延迟以及按钮监视器的毫微功耗、精密电压监控器

本资源的原文使用英文撰写。为方便起见，TI 提供了译文；由于翻译过程中可能使用了自动化工具，TI 不保证译文的准确性。为确认准确性，请务必访问 ti.com 参考最新的英文版本（控制文档）。

1 特性

符合汽车应用标准：

具有符合 AEC-Q100 标准的下列特性：
- 器件温度等级 1：–40°C 至 +125°C 的工作环境温度范围
- 器件 HBM ESD 分类等级 2
- 器件 CDM ESD 分类等级 C7B

专为高性能而设计：

毫微静态电流：125nA（典型值）
高阈值精度：±0.5%（典型值）
内置精密迟滞 (V_HYS)：5%（典型值）

适用于多种应用：

工作电压范围：
- 0.85V 至 6V（DL 和 PL 输出）
- 1V 至 6V（PH 输出）
可调节阈值电压：0.505V（典型值）
精密电压和按钮监视器
可编程感应和复位延迟
固定电压 (V_IT-)：0.8V 至 5.4V（步长为 0.1V）

多种输出拓扑/封装类型：

TPS3899DL-Q1：漏极开路，低电平有效 (RESET)
TPS3899PL-Q1：推挽，低电平有效 (RESET)
TPS3899PH-Q1：推挽，高电平有效 (RESET)
封装：1.5mm × 1.5mm WSON (DSE)

2 应用

3 说明

TPS3899-Q1 是一款毫微级功率、精密电压监控器，具有 ±0.5% 的阈值精度和可编程感应和复位延时时间，并采用节省空间的 6 引脚 1.5mm × 1.5mm WSON 封装。TPS3899-Q1 是一款功能丰富的电压监控器，可提供同类米6体育平台手机版_好二三四中超小型的总解决方案尺寸。在监控电压轨或按钮信号时，内置迟滞和可编程延迟可防止出现错误的复位信号。

通过单独的 VDD 和 SENSE 引脚，可实现高可靠性系统所需的冗余。SENSE与VDD 解耦，可以监控VDD 以外的轨电压。SENSE 引脚的高阻抗输入支持使用可选的外部电阻器。CTS 和 CTR 都提供了对 RESET 信号的上升沿和下降沿进行延迟调整的能力。CTS 忽略受监控电压轨上的电压干扰，从而也可充当去抖动器；作为手动复位工作时，用于强制系统复位。

TPS3899-Q1 以紧凑的外形提供了精密的性能和卓越的功能，成为各种汽车和电池供电/低功耗应用的理想解决方案。该器件的额定工作温度范围为
–40°C 至 +125°C (T_A)。

器件信息

器件型号	封装 ^⁽¹⁾	封装尺寸（标称值）
TPS3899-Q1	WSON (6) DSE	1.5mm x 1.5mm

(1) 如需了解所有可用封装，请参阅数据表末尾的可订购米6体育平台手机版_好二三四附录

典型应用电路

4 Device Nomenclature

Figure 4-1 shows the device naming nomenclature of the TPS3899-Q1. For all possible output types and threshold voltage options, see Device Naming Convention for a more detailed explanation. Contact TI sales representatives or on TI's E2E forum for detail and availability of other options; minimum order quantities apply.

Figure 4-1 Device Naming Nomenclature

5 Pin Configuration and Functions

Figure 5-1 DSE Package
6-Pin WSON
TPS3899-Q1 (Top View)

Table 5-1 Pin Functions

PIN		I/O	DESCRIPTION
NO.	NAME	I/O	DESCRIPTION
1	CTR	—	Capacitor programmable reset delay: The CTR pin offers a user-adjustable delay time when returning from reset condition. Connecting this pin to a ground-referenced capacitor sets the RESET/RESET delay time to deassert.
2	CTS	—	Capacitor programmable sense delay: The CTS pin offers a user-adjustable delay time when asserting reset condition. Connecting this pin to a ground-referenced capacitor sets the RESET/RESET delay time to assert.
3	GND	—	Ground
4	VDD	I	Supply voltage pin: Good analog design practice is to place a 0.1µF decoupling capacitor close to this pin.
5	SENSE	I	This pin is connected to the voltage that will be monitored for fixed variants or to a resistor divider for the adjustable variant. When the voltage on the SENSE pin transitions below the negative threshold voltage V_IT-, RESET/RESET asserts to active logic after the sense delay set by CTS. When the voltage on the SENSE pin transitions above the positive threshold voltage V_IT- + V_HYS, RESET/RESET releases to inactive logic (deasserts) after the reset delay set by CTR. For noisy applications, placing a 10nF to 100nF ceramic capacitor close to this pin may be needed for optimum performance.
6	RESET	O	RESET active-low output that asserts to a logic low state after CTS delay when the monitored voltage on the SENSE pin is lower than the negative threshold voltage V_IT-. RESET remains logic low (asserted) until the SENSE input rises above V_IT- + V_HYS and the CTR reset delay expires.
6	RESET	O	RESET active-high output that asserts to a logic high state after CTS delay when the monitored voltage on the SENSE pin is lower than the negative threshold voltage V_IT-. RESET remains logic high (asserted) until the SENSE input rises above V_IT- + V_HYS and the CTR reset delay expires.

6 Specifications

6.1 Absolute Maximum Ratings

Over operating free-air temperature range, unless otherwise noted ⁽¹⁾

		MIN	MAX	UNIT
Voltage	VDD, SENSE, RESET (TPS3899DL)	–0.3	6.5	V
Voltage	CTR, CTS, RESET (TPS3899PL), RESET (TPS3899PH)	–0.3	V_DD+0.3 ⁽³⁾	V
Current	RESET pin and RESET pin		±20	mA
Temperature ⁽²⁾	Operating ambient temperature, T_A	–40	125	°C
Temperature ⁽²⁾	Storage, T_stg	–65	150	°C

(1) Stresses beyond those listed under Absolute Maximum Rating (AMR) 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 Condition. Exposure to absolute maximum rated conditions for long periods may affect device reliability.

(2) As a result of the low dissipated power in this device, it is assumed that T_J = T_A.

(3) The absolute maximum rating is (VDD + 0.3) V or 6.5 V, whichever is smaller.

6.2 ESD Ratings

				VALUE	UNIT
V_(ESD)	Electrostatic discharge	Human body model (HBM), per AEC Q100-002 ⁽¹⁾		±2000	V
V_(ESD)	Electrostatic discharge	Charged device model (CDM), per AEC Q100-011		±750	V

(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

6.3 Recommended Operating Conditions

Over operating free-air temperature range (unless otherwise noted)

		MIN	MAX	UNIT
Voltage	VDD, SENSE, RESET (TPS3899DL)	0	6	V
Voltage	CTR, CTS, RESET (TPS3899PL), RESET (TPS3899PH)	0	VDD	V
Current	RESET pin and RESET pin current	0	±5	mA
T_A	Operating free air temperature	–40	125	°C
C_CTR	CTR pin capacitor range	0	10	µF
C_CTS	CTS pin capacitor range	0	10	µF