Datasheet > AS1720

AS1720

更新时间： 2022-10-11 11:51:03

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艾迈斯 - AMSCO		/
页数	文件大小	规格书
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Solenoid / Valve Dr iver wi th Cur rent Limi tat ion

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AS1720 数据手册

AS1720

Datasheet ꢀ Pin Assignments

4 Pin Assignments

Figure 2. Pin Out (Top View)

ENN

VDDHV 1

VDDA 2

DUTY 3

AS1720

VSS

OUT

Pin Description

Table 2. Pin Descriptions

Pin Name

VDDHV

VDDA

Pin Number

Description

Positive supply voltage

Internal supply of 3.3V (typ.)

Duty-Cycle. By means of this pin the duty cycle can be adjusted between 20% and 90% during hold

phase. The duty cycle can be adjusted by a voltage source or an external resistor divider. Setting this

pin to VDDA the 50% duty cycle is selected automatically.

DUTY

Current Source Output

OUT

VSS

Ground

Energize Current. This pin defines the current during energize phase by means of a resistor.

Hold Current. This pin defines the current during hold phase by means of a resistor.

Enable Not. This pin can be used to switch on/off the current source (e.g. via a ꢁP), when the

AS1720 is always powered on.

Low during startꢀup: When VDDHV is applied, the device starts with the energise phase, followed by

the hold phase.

ENN

When the device is constantly powered on, it can be controlled by this pin.

High: The output current source is switched off.

Low: The device starts with the energise phase, followed by the hold phase.

www.austriamicrosystems.com/SolenoidꢀRelayꢀDriver/AS1720

Revision 1.04

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123 4 5 6 7...12

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