SCT2A10ASTER产品规格书pdf资源-CSDN文库

降压转换器

77 浏览量 2024-03-20 11:34:26 上传评论收藏 1.2MB PDF 举报

资源推荐

资源详情

资源评论

SCT2A10A

Product Folder Links: SCT2A10A

SILICON CONTENT

TECHNOLOGY

4.5V-100V Vin, 0.6A, High Efficiency Synchronous Step-down DCDC

Converter with Programmable Frequency

FEATURES

 Wide Input Range: 4.5V-100V

 0.6A Continuous Output Current

 0.8V ±1% Feedback Reference Voltage

 Integrated 750mΩ High-Side and 500mΩ Low-

Side Power MOSFETs

 Pulse Frequency Modulation (PFM) with 100uA

Quiescent Current in Sleep Mode

 4ms Internal Soft-start Time

 Adjustable Frequency 300KHz to 800KHz

 Precision Enable Threshold for Programmable

Input Voltage Under-Voltage Lock Out Protection

(UVLO) Threshold and Hysteresis

 Cycle-by-Cycle Current Limiting

 Over-Voltage Protection

 Over-Temperature Protection

 Available in an ESOP-8 Package

APPLICATIONS

 E-Tools

 E-bike, Scooter

 GPS Tracker

DESCRIPTION

The SCT2A10A is 0.6A synchronous buck converters

with wide input voltage, ranging from 4.5V to 100V,

which integrates an 750mΩ high-side MOSFET and a

500mΩ low-side MOSFET. The SCT2A10A, adopting

the constant-on time (COT) mode control, supports the

PFM with typical 100uA low quiescent current which

assists the converter on achieving high efficiency at

light load or standby condition.

The SCT2A10A features programmable switching

frequency from 300 kHz to 800kHz, which provides the

flexibility to optimize either efficiency or external

component size.

The SCT2A10A offers cycle-by-cycle current limit and

hiccup over current protection, thermal shutdown

protection, output over-voltage protection and input

voltage under-voltage protection. The device is

available in an 8-pin thermally enhanced SOP-8

package.

TYPICAL APPLICATION

OU T

SCT2A10A

BST

GND

VIN

Typical Application Efficiency, V

OUT

=12V

100

0.001 0.01 0.1 1

Efficiency(%)

Output Current(A)

Vin=36V

Vin=48V

Vin=60V

Vin=72V

SCT2A10A

Product Folder Links: SCT2A10A

REVISION HISTORY

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Revision 1.0: Release to Market

Revision 1.1: Add application waveforms

Revision 1.2: Update R1 and R2 calculation value in page 11

DEVICE ORDER INFORMATION

PART NUMBER

PACKAGE MARKING

PACKAGE DISCRIPTION

SCT2A10ASTE

A10A

8-Lead Plastic ESOP

1）For Tape & Reel, Add Suffix R (e.g. SCT2A10ASTER).

ABSOLUTE MAXIMUM RATINGS

Over operating free-air temperature unless otherwise noted

(1)

PIN CONFIGURATION

DESCRIPTION

MIN

MAX

UNIT

Figure 1. 8-Lead Plastic E-SOP

VIN, EN

-0.3

105

BOOT

-0.3

111

-1

105

BOOT-SW

-0.3

FB, RT

-0.3

Ambient temperature T

-40

°C

Operating junction temperature T

(2)

-40

125

°C

Storage temperature TSTG

-65

150

°C

(1) Stresses beyond those listed under Absolute Maximum Rating may cause device permanent damage. The device is not guaranteed to

function outside of its Recommended Operation Conditions.

(2) The IC includes over temperature protection to protect the device during overload conditions. Junction temperature will exceed 150°C

when over temperature protection is active. Continuous operation above the specified maximum operating junction temperature will

reduce lifetime.

PIN FUNCTIONS

NAME

NO.

PIN FUNCTION

GND

Ground

VIN

Input supply voltage. Connect a local bypass capacitor from VIN pin to GND pin. Path

from VIN pin to high frequency bypass capacitor and GND must be as short as possible.

Enable pin to the regulator with internal pull-up current source. Pull below 1.05V to

disable the converter. Float or connect to VIN to enable the converter. The tap of resistor

divider from VIN to GND connecting EN pin can adjust the input voltage lockout

threshold.

Set the internal oscillator clock frequency. Connect a resistor from this pin to ground to

set switching frequency.

Inverting input of the trans-conductance error amplifier. The tap of external feedback

resistor divider from the output to GND sets the output voltage. The device regulates

FB voltage to the internal reference value of 0.8V typical.

BST

4 5

GND

VIN

Thermal

PAD

SCT2A10A

Product Folder Links: SCT2A10A

BST

Power supply bias for high-side power MOSFET gate driver. Connect a 0.1uF capacitor

from BOOT pin to SW pin. Bootstrap capacitor is charged when low-side power

MOSFET is on or SW voltage is low.

Regulator switching output. Connect SW to an external power inductor

Thermal

Pad

Heat dissipation path of die. Electrically connection to GND pin. Must be connected to

ground plane on PCB for proper operation and optimized thermal performance.

RECOMMENDED OPERATING CONDITIONS

Over operating free-air temperature range unless otherwise noted

PARAMETER

DEFINITION

MIN

MAX

UNIT

Input voltage range

4.5

100

OUT

Output voltage range

0.8

Operating junction temperature

-40

125

°C

ESD RATINGS

PARAMETER

DEFINITION

MIN

MAX

UNIT

ESD

Human Body Model(HBM), per ANSI-JEDEC-JS-001-2014

specification, all pins

(1)

-2

Charged Device Model(CDM), per ANSI-JEDEC-JS-002-

2014 specification, all pins

(2)

-0.5

+0.5

(1) JEDEC document JEP155 states that 500V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250V CDM allows safe manufacturing with a standard ESD control process.

THERMAL INFORMATION

PARAMETER

THERMAL METRIC

DFN-20L

UNIT

θJA

Junction to ambient thermal resistance

(1)

°C/W

θJC

Junction to case thermal resistance

(1)

45.8

(1) SCT provides R

θJA

and R

θJC

numbers only as reference to estimate junction temperatures of the devices. R

θJA

and R

θJC

are not a

characteristic of package itself, but of many other system level characteristics such as the design and layout of the printed circuit

board (PCB) on which the SCT2A10A is mounted, thermal pad size, and external environmental factors. The PCB board is a heat sink

that is soldered to the leads and thermal pad of the SCT2A10A. Changing the design or configuration of the PCB board changes the

efficiency of the heat sink and therefore the actual R

θJA

and R

θJC

ELECTRICAL CHARACTERISTICS

=48V, T

=-40°C~125°C, typical value is tested under 25°C.

SYMBOL

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

Power Supply

Operating input voltage

4.5

100

IN_UVLO

Input UVLO Threshold

rising

4.2

Hysteresis

400

SHDN

Shutdown current from VIN pin

EN=0, no load

μA

Quiescent current from VIN pin

EN floating, no load, non-

switching, BOOT-SW=5V

100

μA

Power MOSFETs

DSON_H

High-side MOSFET on-resistance

BOOT

-V

=5V

750

mΩ

剩余17页未读，继续阅读

评论收藏

内容反馈

宏源世纪-niki

粉丝: 442
资源: 87

SCT2A10ASTER 产品规格书pdf

最新资源

SCT2A10ASTER 产品规格书pdf

SCT2A23ASTER 产品规格书pdf

SCT2632ASTER 产品规格书pdf

SCT2A25STER 产品规格书pdf

SCT2A23STER 产品规格书pdf

SCT52A40STDR 产品规格书pdf

SCT12A0DHKR 产品规格书pdf

SCT9325STDR 产品规格书pdf

SCT2220TVAR 产品规格书pdf

SCT2460FRAR 产品规格书pdf

SCT2620MRER 产品规格书pdf

SCT2360FPBR 产品规格书pdf

SCT2230CTVBR 产品规格书pdf

SCT2401FTVBR 产品规格书pdf

SCT2332TVBR 产品规格书pdf

SCT2613TVBR 产品规格书pdf

SCT2250FPAR 产品规格书pdf

SCT2330CTVBR 产品规格书pdf

SCT2450QSTER 产品规格书pdf

SCT2601TVBR 产品规格书pdf

2023.10.21 雷蛇+鼠标宏+PUBG+绝地求生 步枪通用

115转存助手ui优化版3.9.1网友魔改-转存提取全修复-user

恩山新版中兴Telnet工具体验版-20230830.rar

基于华为eNSP的校园网设计和仿真模拟.zip

蓝牙驱动，解决win11下的设备管理器蓝牙报错提示为：Generic Bluetooth Adapter驱动感叹号解

大漠插件3.1233全套

csgo鼠标宏，lua格式

Chrome浏览器 v109.0.5414.75稳定版 64位 离线安装包

高逼格PPT模板20套.rar

OpenGD77刷机材料

最新资源

2023.10.21 雷蛇+鼠标宏+PUBG+绝地求生步枪通用

Chrome浏览器 v109.0.5414.75稳定版 64位离线安装包