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TI公司的TPS2482和TPS2483是两种热插拔控制器，专为9V到36V的电源系统设计，能够承受的最大电压为40V。这两种设备都提供了精确的I2C兼容的电源监控，通过16位模数转换器来监测电流、电压和功率，确保在广泛的温度和负载条件下的高精度。 TPS2482和TPS2483的主要特性包括： 1. **电流监控精度**：在-25°C到85°C的温度范围内，电流监控精度可达±0.5%，这使得它们非常适合用于需要精确负载特性的应用。 2. **I2C和SMBus兼容**：通过16位A/D转换器和串行接口，可以实现与I2C和SMBus兼容的通信，允许用户进行编程和配置。 3. **可编程I2C地址**：提供16个可编程I2C地址，支持并行操作，便于系统内的多个设备通信。 4. **温度平均选项**：可以配置为在不同温度下取平均值，提高测量准确性。 5. **内置MOSFET驱动**：控制器能够驱动外部N沟道MOSFET，实现热插拔功能，同时具备同步涌入电流和故障电流限制。 6. **故障定时器**：可编程故障定时器用于检测和响应系统异常，保护系统免受过载损害。 7. **恒定功率折返和固定电流限制**：这些功能在启动时控制MOSFET的输出电流，以保持在安全的操作区域内，避免功率耗散超出范围。 8. **启动波形控制**：通过指数型涌入电流曲线控制VOUT的上升，减少MOSFET的VDS，确保MOSFET的功率耗散保持在安全范围内。 9. **自动重试功能**：TPS2483在冷关机延迟后会自动尝试重新启动，而TPS2482在硬件故障后锁定状态。 10. **应用广泛**：适用于基站24V天线电源、工业24V-28V电源等场景，可以直接替换TPS2480和TPS2481，无需大规模修改硬件或软件。此外，尽管标准监控功能限制在36V，但通过添加少量外部组件，可以扩展监控电压高达80V的系统，这在高电压应用中非常有用。总之，TPS2482和TPS2483是针对9V至36V电源系统的高性能热插拔控制器，具备精确的电源监控和保护功能，适用于各种关键电源管理应用场景。其独特的电流监控和故障处理机制确保了系统的稳定性和可靠性。

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TPS2482

TPS2483

www.ti.com.cn

ZHCSAJ1A –DECEMBER 2012–REVISED MARCH 2013

具具有有精精准准 I

C 功功率率监监控控的的 36V 热热插插拔拔控控制制器器

查查询询样样品品: TPS2482, TPS2483

特特性性

说说明明

• 输输入入电电压压范范围围为为 9V 至至 36V，，绝绝对对最最大大值值 40V

TPS2482 和 TPS2483 提供针对 9V 至 36V 应用的热

插拔控制和精准监控。精确电压、电流和功率监控由

• 电电流流、、电电压压和和功功率率监监控控

16 位模数 (A/D) 转换器，此转换器具有一个与 I

C 和

• ±0.5% 准准确确电电流流监监控控

(-25°C<T

<85°C)

SMBus 兼容的串行接口。电压和电流测量内部交叉且

• 16 个个可可编编程程 I

C™ 地地址址

被复合在一起以提供并发功率计算。这些器件在温度

• 可可配配置置取取平平均均选选项项

和宽负载范围内具有高电流监控精度。这使得它们非

• 可可编编程程金金属属氧氧化化物物半半导导体体场场效效应应晶晶体体管管 (MOSFET)

常适合于负载特性和健康运行由电流配置确定的应用，

SOA 保保护护

诸如远程射频头或蜂窝天线应用。

• 针针对对外外部部 N-FET 的的高高侧侧栅栅极极驱驱动动

热插拔部分驱动 N 通道 MOSFET，此 MOSFET 具有

• 可可编编程程故故障障定定时时器器

同步涌入和故障电流限制功能。先进的 MOSFET 安

• 开开漏漏电电源源正正常常输输出出

全运行区域 (SOA) 保护由可编程恒定功率折返和固定

• 20 引引脚脚薄薄型型小小外外形形尺尺寸寸 (TSSOP) 封封装装

电流限制来实现。这引起了如下面的启动图表中显示

的一个指数涌入电流概图。由于 V

OUT

斜升，而

应应用用范范围围

MOSFET 的 V

被减少，电流的增加一直将 MOSFET

• RRH（（远远程程射射频频头头））

功率耗散保持在其 SOA 范围内。 TPS2482 在一个硬

• 存存储储网网络络

件故障后锁存，而 TPS2483 在冷关机延迟后自动尝试

• 插插件件模模块块

重新启动。

• 基基站站 24V 天天线线电电源源

TPS2482 和 TPS2483 可被插入现有的 TPS2480 和

• 工工业业用用 24V - 28V 电电源源

TPS2481 插座内来提升精度和运行电压范围。无需进

行印刷电路板 (PCB) 更改和只需微小的软件修改即可

实现。

简简化化的的应应用用示示意意图图

示示例例启启动动波波形形

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.

C is a trademark of NXP B.V Corporation.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not English Data Sheet: SLUSAW1

necessarily include testing of all parameters.

TPS2482

TPS2483

ZHCSAJ1A –DECEMBER 2012–REVISED MARCH 2013

www.ti.com.cn

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

说说明明（（继继续续））

虽然标准监控功能被限制至 36V，借助于很少的外部组件，仍然有可能监控电压高达 80V 的系统。请见High

Voltage Application Example中的专用应用说明。

DEVICE INFORMATION

(1)

AMBIENT

DEVICE PACKAGE FUNCTION MARKING

TEMPERATURE

TPS2482 -40°C to 85°C PW20 Latch Off on Fault TPS2482

TPS2483 -40°C to 85°C PW20 Auto Retry on Fault TPS2483

(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or visit the TI

web-site at www.ti.com.

ABSOLUTE MAXIMUM RATINGS

(1) (2)

over recommended operating temperature range (unless otherwise noted)

VALUES

UNIT

MIN MAX

Input voltage range, VCC, SENSE, EN, OUT -0.3 100

Supply voltage, V

-0.3 6

Input voltage, common mode, VINP, VINM -0.3 40

Input voltage, differential, VINP, VINM -40 40 V

Input voltage range, PROG -0.3 6

Output voltage range, GATE, PG -0.3 100

Output voltage range, TIMER

(3)

, VREF

(3)

-0.3 6

Sink current, PG 10

Source current, VREF 2 mA

Sink current, PROG 2

SDA, ALERT -0.3 6

SCL -0.3 (V

+ 0.3)

Current into SENSE -1 1

Current into SDA, SCL, V

, VINP, VINM, A0, A1, ALERT 5 mA

Open-drain digital output current into SDA, ALERT 10

ESD rating, HBM 2000

ESD rating, CDM 500

Maximum operating junction temperature, T

150

°C

Storage temperature range, T

stg

-40 150

(1) 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.

(2) All voltage values are with respect to GND unless otherwise noted.

(3) Do not apply external voltage to these pins.

TPS2482

TPS2483

ZHCSAJ1A –DECEMBER 2012–REVISED MARCH 2013

www.ti.com.cn

ELECTRICAL CHARACTERISTICS (Hotswap Section)

Unless otherwise noted, minimum and maximum limits apply across the recommended operating junction temperature and

voltage ranges, typical specifications are at T

= 25°C, V

VCC

= 48 V, V

PROG

= 2 V, V

TIMER

= 0 V, all outputs unloaded. Voltages

are with respect to GND and positive currents are into pins.

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Hotswap Supply (VCC)

Hotswap section enabled V

= Hi, V

SENSE

= V

VCC

, V

OUT

= V

VCC

450 1000

VCC

μA

Hotswap section disabled V

= Lo, V

SENSE

= V

VCC

, V

OUT

= 0 V 90 250

UVLO turn-on threshold VCC rising 8.4 8.8

UVLO turn-off threshold VCC falling 7.2 8.3

UVLO threshold hysteresis 75 mV

Current Sense Input (SENSE)

SENSE

Input bias current V

SENSE

= V

VCC

, V

OUT

= V

VCC

7.5 20 μA

Reference Voltage Output (VREF)

VREF

Reference voltage 0 mA < I

VREF

< 1 mA 3.9 4 4.1 V

Power Limiting Input (PROG)

Input bias current; device

PROG

0 V < V

PROG

< 4 V, V

= 48 V 5 μA

enabled; sourcing or sinking

Pulldown resistance; device

PROG

= 200 μA, V

= 0 V 375 600 Ω

disabled

Power Limiting and Current Limiting (SENSE)

Current-sense threshold

PROG

= 2.4 V and V

OUT

= 0 V] or

CL_PL

(VCC-SENSE)

, with power-limit 17 25 33

PROG

= 0.9 V and V

OUT

= 30 V]

active

Current-sense threshold

(VCC-SENSE)

, with power-limit V

PROG

= 4 V, V

OUT

= V

SENSE

45 50 55

inactive

Response time, from large V

PROG

= 4 V, V

OUT

= V

SENSE

, C

(GATE-OUT)

= 2 nF,

F_TRIP

1.2 μs

overload to GATE low V

(VCC-SENSE)

= 0 V → 200 mV, V

(GATE-OUT)

= 1 V

Timer Operation (TIMER)

TIMER

= 0 V 15 25 34

SOURCE

Charge current (sourcing)

TIMER

= 0 V, T

= 25°C 20 25 30

μA

TIMER

= 5 V 1.5 2.5 3.7

SINK

Discharge current (sinking)

TIMER

= 5 V, T

= 25°C 2.1 2.5 3.1

TIMER upper threshold

TMRHI

3.9 4.0 4.1

voltage

TIMER lower threshold

TMRLO

TPS2483 only 0.96 1.0 1.04

voltage

RETRY

Fault retry duty-cycle TPS2483 only 0.5% 0.75% 1%

Gate Drive Output (GATE)

GATE

GATE sourcing current V

= Hi, V

SENSE

= V

VCC

, V

(GATE-OUT)

= 7 V 15 22 35 μA

= Lo, V

GATE

= V

VCC

1.8 2.4 2.8

GATE sinking current mA

= Hi, V

GATE

= V

VCC

, V

(VCC-SENSE)

= 200 mV 75 125 250

GATE-OUT

GATE output voltage V

GATE

with respect to V

OUT

12 16 V

Propagation delay: EN going V

= 0 V → 2.5 V (t

RISE

< 0.1 μs), 50% of V

D_ON

25 40

true to GATE output high 50% of V

GATE

, V

OUT

= V

VCC

, R

(GATE-OUT)

= 1 MΩ

Propagation delay: EN going V

= 2.5 V → 0 V (t

FALL

< 0.1 μs), 50% of V

D_OFF

0.5 1

false to GATE output low 50% of V

GATE

, V

OUT

= V

VCC

, R

(GATE-OUT)

= 1 MΩ μs

TIMER

= 0 V → 5 V (t

RISE

< 0.1 μs), 50% of

Propagation delay: TIMER

TIMER

to 50% of V

GATE

, V

OUT

= V

VCC

, R

(GATE-OUT)

0.8 1

expires to GATE output low

= 1 MΩ

TPS2482

TPS2483

www.ti.com.cn

ZHCSAJ1A –DECEMBER 2012–REVISED MARCH 2013

ELECTRICAL CHARACTERISTICS (Hotswap Section) (continued)

Unless otherwise noted, minimum and maximum limits apply across the recommended operating junction temperature and

voltage ranges, typical specifications are at T

= 25°C, V

VCC

= 48 V, V

PROG

= 2 V, V

TIMER

= 0 V, all outputs unloaded. Voltages

are with respect to GND and positive currents are into pins.

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Power-Good Output (PG)

OUT

= 0 V, I

= 2 mA 0.1 0.25

Output voltage (sinking), PG

PG_OL

= false

OUT

= 0 V, I

= 4 mA 0.25 0.5

SENSE

= V

VCC

, V

OUT

rising, V

(SENSE-OUT)

PGTL

PG = true threshold voltage 0.8 1.25 1.7

decreasing V

SENSE

= V

VCC

, V

OUT

falling, V

(SENSE-OUT)

PGTH

PG = false threshold voltage 2.2 2.7 3.2

increasing

HYST_PG

PG threshold hysteresis V

SENSE

= V

VCC

1.4

PG deglitch delay, detection

DPG

to output, rising and falling V

SENSE

= V

VCC

5 9 15 ms

edges

Output leakage current, PG =

= V

VCC

10 μA

true

Output Voltage Feedback Input (OUT)

OUT

= V

VCC

, V

= Hi; (sinking) 8 20

OUT

Input bias current μA

OUT

= 0 V, V

= Lo; (sourcing) 18 40

Enable Input (EN)

EN_H

Threshold V

rising 1.32 1.35 1.38

EN_L

Threshold V

falling 1.20 1.25 1.30

EN threshold hysteresis 100 mV

Input bias current V

= 30 V 1 μA

ELECTRICAL CHARACTERISTICS (Monitor Section)

Boldface limits apply over the recommended junction temperature range, otherwise limits apply at T

= 25°C. Unless

otherwise noted, V

= 3.3 V, VINP = 12 V, V

SHUNT

= (VINP – VINM) = 0 mV, default power-on mode. Voltages are with

respect to GND and positive currents are into pins.

PARAMETER CONDITIONS MIN TYP MAX UNIT

Monitor Supply (V

)

Operating supply range 2.7 5.5 V

Quiescent current, default operating mode No SCL clock 330 420 μA

Quiescent current, power-down mode No SCL clock 0.5 2 μA

Monitor Sense Inputs (VINP, VINM)

Shunt voltage input range -81.9175 81.9175 mV

Bus voltage input range

(1)

0 36 V

Common-mode rejection CMRR V

VINP

= 0 V to 36 V 126 140 dB

Shunt offset voltage, RTI

(2)

±2.5 ±10 μV

vs Temperature 0.1 0.4 μV/°C

vs Power supply PSRR V

= 2.7 V to 5.5 V 2.5 μV/V

Bus offset voltage, RTI

(2)

±1.25 ±7.5 mV

vs Temperature 10 40 μV/°C

vs Power supply PSRR V

= 2.7 V to 5.5 V 0.5 mV/V

Input bias current I

VINP

10 μA

Input bias current, plus parallel I

VINM

+ 10μA ||

resistance R

VINM

830kΩ

(1) While the input range is limited to 36 V, the full-scale range of the ADC scaling is 40.96 V. See the Basic ADC Functions section. Do not

apply more than 36 V.

(2) RTI = Referred-to-input.

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