MB3842

更新时间： 2024-01-18 22:38:59

品牌	Logo	应用领域
富士通 - FUJITSU		开关
页数	文件大小	规格书
19页	142K
描述
Power Management 2-ch Switch IC

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MB3842 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	,	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.32	Is Samacsys：	N
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	Base Number Matches：	1

FUJITSU SEMICONDUCTOR

DATA SHEET

DS04-27604-2E

ASSP For Power Supply Applications

Power Management 2-ch Switch IC

MB3842/MB3845

■ DESCRIPTION

The MB3842/3845 is a power management switch with built-in 2-channel low-on resistance (typ. 100mΩ) switch.

Output control is by means of a control signal, and the MB3842 is designed for high-active operation (output on

when EN is Hi), while the MB3845 is designed for low-active operation (output on when EN is low.)

To provide adaptability to a variety of operations, the MB3842/3845 features low input voltage (V^IN> 2.5V)

operation and stable low-on resistance independent of input voltage. The switching current limit can be set from

100mA to 600mA by using external resistance, and when overcurrent conditions are detected the OC output goes

low to provide an external notification signal.

V^INis divided between the two channels, which operate independently of each other.

In addition, an off-state reverse current prevention function is provided to ensure accurate on/off switching action.

■ FEATURES

• Low on resistance switch (typ. 100mΩ)

• Low input voltage operation (2.5 V to 5.5 V)

• Switch current (max. 0.6 A)

• UVLO

• ENABLE

:V^INthreshold

:EN threshold

2.3V/2.1 V hysteresis 200 mV

EN 1.4V/1.6 V for MB3842, EN 1/2 V^INfor MB3845

:Power supply current at output off = 0µA EN < 0.8V for MB3842, EN = V^INfor MB3845

• External setting for soft start time and switch current limit.

• Over-temperature detection (switch latched off), over-current detection (not latched)

• OC pin flag set following overcurrent detection, over-temperature detection, or UVLO detection.

• Reverse current prevention at OFF (V^IN≥ 1.5 V)

• Either channel may be operated alone.

■ PACKAGE

20-pin plastic SSOP

(FPT-20P-M03)

12 3 4 5 6 7...19

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