Datasheet > MAX20333ENL+

MAX20333ENL+

更新时间： 2024-02-06 16:57:39

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
17页	553K
描述
Power Supply Support Circuit,

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技术参数
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MAX20333ENL+ 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	1.49
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	Base Number Matches：	1

MAX20333ENL+ 数据手册

EVALUATION KIT AVAILABLE

Click here for production status of speciﬁc part numbers.

MAX20333

Adjustable Current-Limit Switch

with Low Power Mode

General Description

Beneﬁts and Features

● Flexible Operation

The MAX20333/A/B/C/D/E/F/G/H/I/J/K programmable

current-limit switches feature internal current limiting to

prevent damage to host devices due to faulty load condi-

tions. These current limit switches feature a low 23mΩ

(typ) on-resistance and operate from a +3.5V to +22V

input voltage range.

• Wide Range of Programmable Current Limit

(0.2A to 4.75A)

• Wide Operating Range: 3.5V to 22V

• Three Diﬀerent Current-Limit Modes: NM, HCM,

LPM

• Three Diﬀerent Current-Limit Behaviors: Autoretry,

Latchoﬀ, Continuous

• Power Good Input

The MAX20333 family has three working modes: normal

mode (NM), high current mode (HCM), and low power

mode (LPM). In NM, the device offers a programmable

current-limit protection from 0.2A to 4.75A. The current-

limit threshold can be programmed by connecting a suit-

able resistor to the SETI bump. When the current reaches

the programmed threshold, the part prevents the current

to further increase. The device can react in three different

ways while in current limit: autoretry, latchoff, and continu-

ous. The voltage on the SETI bump is proportional to the

current flowing out of the OUT bump at any time and can

be read by an ADC.

• Current Monitoring

● Safe Operation

• Precision Current Limit

• Output Short Protection

• Thermal Protection

• Flag Output

● Power Saving

• Low Power Mode (LPM) with Output Short

Protection

In high current mode (HCM), the current-limit threshold is

multiplied by two, with an internal upper limit set at 5.5A.

The voltage on SETI is proportional to the current flowing

into IN, but multiplied by a factor 0.5. In low power mode

(LPM), the current consumption of the part is dramatically

reduced, and the on-resistance is 420mΩ (typ), while still

offering an overcurrent protection. The switch is open when

the current flowing through the switch exceeds 0.4A (typ).

Applications

● USB Port Protection Switch

● Battery Disconnect Switch

● General Power Supply Switch

The devices are available in a 15-bump (2.1mm x

1.52mm) WLP package and operate over the -40°C to

+85°C extended temperature range.

Ordering Information appears at end of data sheet.

19-100538; Rev 1; 6/19

12 3 4 5 6 7...17

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