"TPS2399-D热插拔控制器技术文档：-48V系统中的热插拔管理与保护"

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The TPS2399-D hot swap controller, with enable, is a versatile and efficient power management solution designed for use in -48 V systems. Developed by Semiconductor Components Industries, LLC, this integrated circuit offers advanced features and improved performance for redundant supply systems. One of the key highlights of the TPS2399-D is its enhanced circuit breaker response, which ensures rapid protection against short circuits. This feature is crucial in preventing damage to the connected devices and maintaining the overall system reliability. Additionally, the controller is capable of tolerating large transients that may occur during sudden switchover events, providing added flexibility and robustness in demanding operational conditions. With its enable function, the TPS2399-D allows for easy and convenient control of power flow, enabling seamless plug-ins and removals without disrupting the system operation. This feature enhances user experience and simplifies maintenance tasks, making the controller an ideal choice for applications requiring frequent hot swapping of components. Overall, the TPS2399-D hot swap controller offers a comprehensive solution for power management in -48 V systems. By combining advanced protection features, efficient performance, and user-friendly design, this integrated circuit provides a reliable and versatile solution for redundant supply setups. Whether used in telecommunications, industrial automation, or other critical applications, the TPS2399-D ensures smooth and reliable power delivery, contributing to the overall efficiency and performance of the system.

TPS2398, TPS2399

www.onsemi.com

Table 2. ABSOLUTE MAXIMUM RATINGS

Rating Symbol Value Unit

Input voltage range, all pins except RTN, EN, PG (Note 1) −0.3 to 15 V

Input voltage range, RTN (Note 1) RTN −0.3 to 100 V

Input voltage range, EN (Notes 1, 2) EN −0.3 to 100 V

Output voltage range, PG (Notes 1, 3) PG −0.3 to 100 V

Continuous output current, PG I

10 mA

Continuous total power dissipation, T

< 25 P

D(MAX)

420 mW

Operating junction temperature range T

J(MAX)

−40 to 125 °C

Storage temperature range T

STG

−55 to 150 °C

Lead temperature soldering 1.6 mm (1/16 inch) from case for 10 seconds T

SOL

260 °C

Human Body Model (HBM) (Note 4) ESD

HBM

2.0 kV

Charged Device Model (CDM) (Note 4) ESD

CDM

1.5 kV

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

2. With 100−kW minimum input series resistance, −0.3 V to 15 V with low impedance.

3. With 10−kW minimum input series resistance, −0.3 V to 80 V with low impedance.

4. All pins except RTN pin which is specified up to 1.0 kV.

Table 3. RECOMMENDED OPERATING CONDITIONS

Rating Min Nom Max Unit

Nominal input supply, −VIN to RTN −80 −36 V

Operating ambient temperature −40 85 °C

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond

the Recommended Operating Ranges limits may affect device reliability.

Table 4. DISSIPATION RATING TABLE

Package T

< 255C Derating Factor T

< 855C

MSOP−8 420 mW 4.3 mW/°C 160 mW

Table 5. ELECTRICAL CHARACTERISTICS

I(−VIN)

= −48 V with respect to RTN, V

I(EN)

= 2.8 V, V

I(ISENS)

= 0 V, all outputs unloaded, device not in fault mode, T

= 25°C; unless

otherwise noted. The Min and Max specifications are guaranteed at −40°C ≤ T

≤ 85°C. (Notes 5, 6)

Parameter

Test Conditions Symbol Min Typ Max Unit

INPUT SUPPLY

Supply current, RTN

I(RTN)

= 48 V

310 450

I(RTN)

= 80 V 310 450

UVLO threshold, input voltage rising To GATE pull−up, referenced to RTN V

UVLO_L

−36 −30 −25 V

UVLO hysteresis V

HYS

1.8 2.3 3.0 V

ENABLE INPUT (EN)

Threshold voltage, input voltage rising

To GATE pull−up V

1.25 1.35 1.5 V

EN hysteresis V

HYS_EN

20 40 90 mV

High−level input current V

I(EN)

= 5 V I

−2 1 2

LINEAR CURRENT AMPLIFIER (LCA)

High−level output, GATE

I(ISENS)

= 0 V V

11 14 17 V

Output sink current V

I(ISENS)

= 80 mV, V

O(GATE)

= 5 V, Fault mode I

SINK

50 100 mA

Input current, ISENS 0 V < V

I(ISENS)

< 0.2 V I

−1 1

5. All voltages are with respect to the −VIN terminal unless otherwise stated.

6. Currents are positive into and negative out of the specified terminal.

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