Datasheet > RE46C318

RE46C318

更新时间： 2024-01-13 07:35:41

品牌	Logo	应用领域
美国微芯 - MICROCHIP		驱动器转换器升压转换器
页数	文件大小	规格书
22页	577K
描述
Piezoelectric Horn Driver with Boost Converter

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中文翻译

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RE46C318 数据手册

RE46C317/18

Piezoelectric Horn Driver with Boost Converter

Description:

Features:

• 3V Operation

The RE46C317/18 are CMOS piezoelectric horn driver

ICs with built-in boost converter. They are intended for

use in 3V battery or battery-backed applications. The

circuits feature a boost converter and a driver circuit

suitable for driving a piezoelectric horn.

• Low Quiescent Current

• 10V Boost Converter

• Low Horn Driver On-Resistance

• Compatible with RE46C117

The RE46C317/18 are compatible with the RE46C117

device and offer lower standby current.

Applications:

The RE46C317 has three valid states of Horn Enable

(tri-state, low and high), while the RE46C318 has only

two valid states, low and high.

• Smoke Detectors

• CO Detectors

• Personal Security Products

• Electronic Toys

Package Types

RE46C317/18

PDIP, SOIC

FEED

V_DD

HRNEN

HORNS

HORNB

V_O

V_SS

Typical Application

RE46C317 Only

High

R₁

1.5M

C₄

R₂

200K

RE46C317/18

1 nF

Tri-state

FEED

HRNEN

HORNS

HORNB

V_O

Low

V_DD

L₁

RE46C318 Only

10 μH

High

V₁

V_SS

2V to 5V

10 μF

C₃

10 μF

Low

D₁

Note 1: Schottky diode D₁must have the maximum peak current rating of at least 1A. For best results, the

forward voltage spec should be less than 0.5V at 1A.

2: Inductor L₃must have the maximum peak current rating of at least 1A. For best results, the DC resistance

should be less than 0.5.

 2012-2013 Microchip Technology Inc.

DS20002301B-page 1

12 3 4 5 6 7...22

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