Datasheet > SC32300A/B.EVB

SC32300A/B.EVB

更新时间： 2024-09-26 01:11:35

品牌	Logo	应用领域
商升特 - SEMTECH		/
页数	文件大小	规格书
18页	533K
描述
Synchronous Power MOSFET Driver With Integrated 3.3V LDO

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SC32300A/B.EVB 数据手册

SC32300B

Synchronous Power MOSFET

Driver With Integrated 3.3V LDO

POWER MANAGEMENT

Features

Description

The SC32300B is a high-side and low-side N-channel

MOSFET driver with integrated bootstrap switch. This

driver can be used as a synchronous buck converter

MOSFET driver. It can also be used together with the

SC32300A in applications driving a DC motor or similar

load. An external capacitor to program the dead-time

oﬀers the ﬂexibility to design the switch clamp circuitry

and produce more reliable system operation for the DC

motor driving application. The SmartDrive^TMfunction at

the turn-on of the high-side MOSFET is a standout feature

of this part to reduce the EMI. The diode emulation mode

operation offers the opportunity to achieve high effi-

ciency at light load. The integrated LDO reduces the cost

and the footprint of the system.



Dual N-Channel MOSFET Driver with Programmable

Dead Time Control

Wide Power Stage Input Voltage: Up to 36V

Integrated Low Input Voltage 3.3V LDO

Smart Gate Drive to Reduce EMI



Integrated Bootstrap Switch

Diode Emulation for High Light Load Eﬃciency

Tri-State PWM Input for Drive Stage Shutdown

UVLO, Over Temperature Shutdown

10 Lead MLPD-UT 2.3mm x 2.3mm Package

Full Industrial Temperature Range

Fully WEEE and RoHS Compliant

Applications

An Under-Voltage-Lock-Out (UVLO) function is included

to ensure the driver outputs are oﬀ when the bias voltage

falls below 4.02V. An over temperature shutdown feature

is also included to prevent the driver from overheating.



DC Motor Drive (with SC32300A)

Synchronous DC-DC Converters

• Single Phase

• Multiphase

The SC32300B is available in a space-saving 10 lead

2.3mm x 2.3mm MLPD-UT package and operates over the

industrial temperature range.

Typical Application Circuit

VIN

BST

VIN

SC32300A

FCCM

BST

VLDO

Phase V

3.3V for µP

SC32300B

VDD pin of

SC32300A

VDD

FCCM

VDD

Phase V

Phase U

PWM

GND

PWM

Underneath

pad

Figure 1. Typical Application for DC Motor Driving

Rev. 2.1

12 3 4 5 6 7...18

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