Datasheet > 935323431574

935323431574

更新时间： 2024-11-08 21:09:39

品牌	Logo	应用领域
恩智浦 - NXP		驱动接口集成电路
页数	文件大小	规格书
52页	1215K
描述
Half Bridge Based Peripheral Driver

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935323431574 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.64
接口集成电路类型：	HALF BRIDGE BASED PERIPHERAL DRIVER	Base Number Matches：	1

935323431574 数据手册

Document Number: MC34937

Rev. 4.0, 4/2019

NXP Semiconductors

Data sheet: Technical Data

Three phase field effect transistor

pre-driver

34937A

Industrial

The 34937A is a field effect transistor (FET) pre-driver designed for three phase

motor control and similar applications. The integrated circuit (IC) uses

SMARTMOS technology.

THREE PHASE PRE-DRIVER

The IC contains three high-side FET pre-drivers and three low-side FET pre-

drivers. Three external bootstrap capacitors provide gate charge to the high-

side FETs.

The IC interfaces to a MCU via six direct input control signals, an SPI port for

device setup and asynchronous reset, enable, and interrupt signals. Both 5.0 V

and 3.0 V logic level inputs are accepted and 5.0 V logic level outputs are

provided.

Features

EK SUFFIX (Pb-FREE)

98ASA99334D

54-PIN SOICW-EP

• Extended supply voltage operating range: 6.0 V to 58 V

• Gate drive capability of 1.0 A to 2.5 A

• Wide deadtime range (50 ns to 12 s) programmable via the SPI port

• Charge pump ensures sufficient external FET drive at low supply voltages

• Device protection against reverse charge-injection from C_GDand C_GSof

external FETS

• Integrated overcurrent, desaturation, and phase fault-detection

• Immunity against positive or negative transient voltage spikes on the gate

driver

• Current shoot-through protection built into deadtime control

• Supports direct 3.3 V and 5.0 V logic interface to MCUs

• Integrated current sensing amplifier

Applications

• 12 V to 48 V 3-phase brushless DC (BLDC) motors

and permanent magnet synchronous motors (PMSM)

• E-Bike, hospital beds, electric scooters

• CPAPs, inflation pumps, industrial fans

• Portable power tools, commercial fans/blowers

• Small kitchen appliances

• Device configuration and diagnostics through the SPI

SYS

34937

VPUMP

PUMP

VSUP

PA_HS_G

PB_HS_G

PC_HS_G

VPWR

VLS

VDD

VSS

PA_HS_S

PB_HS_S

PC_HS_S

PX_HS

PX_LS

PHASEX

PA_LS_G

PB_LS_G

PC_LS_G

MCU

DSP

SCLK

PX_LS_S

RST

INT

EN1

EN2

AMP_P

AMP_N

AMP_OUT

SEN

GND

Figure 1. 34937A simplified application diagram

12 3 4 5 6 7...52

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