Datasheet > DRV8662RGPR

DRV8662RGPR

更新时间： 2024-11-26 12:50:47

品牌	Logo	应用领域
德州仪器 - TI		驱动器转换器升压转换器
页数	文件大小	规格书
4页	367K
描述
Piezo Haptic Driver with Integrated Boost Converter

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DRV8662RGPR 数据手册

DRV8662

www.ti.com

SLOS737A –JUNE 2011–REVISED MARCH 2012

Piezo Haptic Driver with Integrated Boost Converter

Check for Samples: DRV8662

FEATURES

DESCRIPTION

The DRV8662 is a single-chip piezo haptic driver with

integrated 105 V boost switch, integrated power

diode, and integrated fully-differential amplifier. This

versatile device is capable of driving both high-

voltage and low-voltage piezo haptic actuators. The

input signal can be either differential or single-ended.

The DRV8662 supports four GPIO-controlled gains:

28.8 dB, 34.8 dB, 38.4 dB, and 40.7 dB.

•

High-Voltage Piezo Haptic Driver

–

Drives up to 100 nF at 200 V_PPand 300 Hz

Drives up to 150 nF at 150 V_PPand 300 Hz

Drives up to 330 nF at 100 V_PPand 300 Hz

Drives up to 680 nF at 50 V_PPand 300 Hz

Differential Output

•

Integrated Boost Converter

The boost voltage is set using two external resistors,

and the boost current limit is programmable via the

R_EXTresistor. The boost converter architecture will

not allow the demand on the supply current to exceed

the limit set by the R_EXTresistor; therefore, the

DRV8662 is well-suited for portable applications. This

feature also allows the user to optimize the DRV8662

circuit for a given inductor based on the desired

performance requirements.

–

Adjustable Boost Voltage

Adjustable Current Limit

Integrated Power FET and Diode

No Transformer Required

•

Fast Start Up Time of 1.5 ms

Wide Supply Voltage Range of 3.0 V to 5.5 V

1.8V Compatible Digital Pins

Thermal Protection

A typical start-up time of 1.5 ms makes the DRV8662

an ideal piezo driver for fast haptic responses.

Thermal overload protection prevents the device from

being damaged when overdriven.

Available in a 4 mm × 4 mm × 0.9 mm QFN

package (RGP)

APPLICATIONS

•

Mobile Phones

Tablets

Portable Computers

Keyboards and Mice

Touch Enabled Devices

VBAT

C_BOOST

Boost

Converter

C_PUMP

R_EXT

DRV8662

IN+

IN-

Piezo

Actuator

Gain

–

GAIN0

GAIN1

For more information, please contact your local TI sales representative.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4

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DRV8662RGPR 替代型号

型号	品牌	替代类型	描述	数据表
DRV8662RGPT	TI	完全替代	Piezo Haptic Driver with Integrated Boost Converter

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