Datasheet > TPS25946XX

TPS25946XX

更新时间： 2024-11-28 02:50:11

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
47页	4084K
描述
TPS25946xx 2.7â23 V, 5.5-A, 28-mÎ© eFuse With Bidirectional Current Support

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TPS25946XX 数据手册

TPS25946

SLVSGA8A – MAY 2021 – REVISED AUGUST 2021

TPS25946xx 2.7–23 V, 5.5-A, 28-mΩ eFuse With Bidirectional Current Support

1 Features

3 Description

•

Wide operating input voltage range: 2.7 V to 23 V

– 28-V absolute maximum

Integrated back-to-back FETs with low On-

Resistance: R_ON= 28.3 mΩ (typ)

– Bi-directional current flow during ON state

– Reverse current blocking during OFF state

Fast overvoltage protection

– Adjustable Overvoltage Lockout (OVLO) with

1.2-μs (typ) response time

The TPS25946xx family of eFuses is a highly

integrated circuit protection and power management

solution in

small package. The devices

•

provide multiple protection modes using very few

external components and are a robust defense

against overloads, short-circuits, voltage surges and

excessive inrush current. With integrated back-to-

back FETs, the device allows bi-directional current

flow during ON state, while blocking current flow in

both directions during OFF state, making it well suited

for USB OTG (On-The-Go) applications.

•

Overcurrent protection in forward direction with

load current monitor output (ILM)

– Active current limit response

– Adjustable threshold (I_LIM): 0.5 A to 6 A

Output slew rate and inrush current can be adjusted

using a single external capacitor. Loads are protected

from input overvoltage conditions by cutting off the

output if input exceeds an adjustable overvoltage

threshold. The devices respond to output overload by

actively limiting the current. The output current limit

threshold as well as the transient overcurrent blanking

timer are user adjustable. The current limit control pin

also functions as an analog load current monitor.

•

±10% accuracy for I_LIM> 1 A

– Adjustable transient blanking timer (ITIMER) to

allow peak currents up to 2 × I_LIM

– Output load current monitor accuracy: ±6%

(I_OUT≥ 1 A)

Fast-trip response for short-circuit protection on

OUT pin

•

– 500-ns (typ) response time

The devices are available in a 2-mm × 2-mm,

10-pin HotRod QFN package for improved thermal

performance and reduced system footprint.

– Adjustable (2 × I_LIM) and fixed thresholds

Active high enable input with adjustable

Undervoltage Lockout threshold (UVLO)

Adjustable output slew rate control (dVdt)

Overtemperature protection

Digital Indication Options:

– Power Good indication (PG) with adjustable

threshold (PGTH) or

The devices are characterized for operation over a

junction temperature range of –40°C to +125°C.

•

Device Information

PART NUMBER

PACKAGE⁽¹⁾

BODY SIZE (NOM)

TPS25946xxRPW

QFN (10)

2 mm × 2 mm

– Supply Good (SPLYGD) and Fault (FLT)

indications

UL 2367 recognition (pending)

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

•

IEC 62368 CB certification (pending)

Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch

V_BUS

V_SYS

OUT

2 Applications

•

USB On-The-Go (OTG)

Smartphones

Tablets

Digital cameras

Point of sales terminals

Wireless chargers

C_OUT

PGTH

EN/UVLO

OVLO

V_LOGIC

TPS259460x

ITIMER dVdt

ILM

GND

R_ILM

C_ITIMER

C_DVDT

Simplified Schematic

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...47

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与TPS25946XX相关器件

型号	品牌	获取价格	描述	数据表
TPS25946XXRPW	TI	获取价格	TPS25946xx 2.7â23 V, 5.5-A, 28-mÎ© eFuse Wi
TPS25947	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS25947_V01	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS25947_V02	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28-mÎ© True Re
TPS259470ARPW	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS259470ARPWR	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS259470LRPW	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS259470LRPWR	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS259472ARPW	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re
TPS259472ARPWR	TI	获取价格	TPS25947xx, 2.7 - 23 V, 5.5 A, 28 mÎ© True Re

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