Datasheet > AAT2856INJ-EE-T1

AAT2856INJ-EE-T1

更新时间： 2024-01-30 11:30:58

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
22页	487K
描述
High Current Charge Pump with Dual LDO for BacklightApplications

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技术参数
数据手册

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AAT2856INJ-EE-T1 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.68
Base Number Matches：	1

AAT2856INJ-EE-T1 数据手册

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AAT2856

High Current Charge Pump with

Dual LDO for BacklightApplications

Evaluation Board Layout

Figure 7: AAT2856 Evaluation Board

Figure 8: AAT2856 Evaluation Board

Layout Bottom Side.

Layout Top Side.

The Enables of both LDOs are connected with

jumpers J3 and J4. These terminals must be con-

nected to the external source to turn on/off the

LDOs.

Evaluation Board User Interface

The user interface for the AAT2856 evaluation

board is provided through 4 buttons and a number

of connection terminals. The board is operated by

supplying external power and pressing individual

buttons or button combinations. The table below

indicates the function of each button or button

combination.

When applying external enable signals, considera-

tion must be given to the voltage levels. The exter-

nally applied voltages cannot exceed the supply volt-

age that is applied to the IN pins of the device (DC+).

To power-on the board, connect a power supply or

battery to the DC- and DC+ terminals. Make the

board's supply connection by positioning the J1

jumper to the ON position. A red LED indicates that

power is applied.

The LDO loads can be connected directly to the

evaluation board. For adequate performance, be

sure to connect the load between OUTA/OUTB and

DC- as opposed to some other GND in the system.

Button(s) Pushed

Description

SW1

[Push/Release once] Increment the number of EN/SET edges, but the backlight current

is decreased (dimmer). If held down, auto-cycle through the settings.

SW2

SW3

[Push/Release once] Decrement the number of EN/SET edges, but the backlight cur-

rent is increased (brighter). If held down, auto-cycle through the settings.

[Push/Release once] Toggle between 20mA and 30mA maximum current.

Table 14: AAT2856 Evaluation Board User Interface .

1. The enable for LDOA and LDOB are manually set externally.

2856.2007.06.1.0

1...14 15 161718 19 20...22

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