SC1405BTS.TRT

更新时间： 2024-01-07 10:01:54

品牌	Logo	应用领域
商升特 - SEMTECH		驱动器
页数	文件大小	规格书
12页	136K
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数据手册

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SC1405BTS.TRT 数据手册

HIGH SPEED SYNCHRONOUS POWER

MOSFET SMART DRIVER

SC1405

August 31, 2000

TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com

DESCRIPTION

FEATURES

The SC1405 is a Dual-MOSFET Driver with an internal

Overlap Protection Circuit to prevent shoot-through

from V_INto GND in the main switching and syn-

chronous MOSFET’s. Each driver is capable of driving

a 3000pF load in 20ns rise/fall time and has ULTRA-

FAST propagation delay from input transition to the

gate of the power FET’s. The Overlap Protection circuit

ensures that the second FET does not turn on until the

top FET source has reached a voltage low enough to

prevent shoot-through. The delay between the bottom

gate going low to the top gate transitioning to high is

externally programmable via a capacitor for optimal

reduction of switching losses at the operating fre-

quency. The bottom FET may be disabled at light loads

by keeping S_MOD low to trigger asynchronous opera-

tion, thus saving the bottom FET’s gate drive current

and inductor ripple current. An internal voltage refer-

ence allows threshold adjustment for an Output Over-

Voltage protection circuitry, independent of the PWM

feedback loop. Under-Voltage-Lock-Out circuit is in-

cluded to guarantee that both driver outputs are low

when the 5V logic level is less than or equal to 4.4V

(typ) at supply ramp up (4.35V at supply ramp down). A

CMOS output provides status indication of the 5V sup-

ply. A low enable input places the IC in stand-by mode

thereby reducing supply current to less than 10µA.

SC1405 is offered in a high pitch (.025” lead spacing)

TSSOP package.

•= ^{Fast rise and fall times (20ns typical with 3000pf}

load)

•= 20ns max. Propagation delay (BG going low)

•= Adaptive/programmable shoot-through protection

•= Wide input voltage range (4.5-25V)

•= Programmable delay between MOSFET’s

•= Power saving asynchronous mode control

•= Output overvoltage protection/overtemp shutdown

•= Under-Voltage lock-out and power ready signal

•= Less than 10µA stand-by current (EN=low)

•= Power ready output signal

APPLICATIONS

•= ^{High Density/Fast transient power supplies}

•= Motor Drives/Class-D amps

•= High frequency (to 1.2 MHz) operation allows use

of small inductors and low cost caps in place of

electrolytics

•= Portable computers

ORDERING INFORMATION

DEVICE⁽¹⁾

PACKAGE

TEMP. RANGE (T_J)

SC1405TS.TR TSSOP-14

0 - 125°C

Note:

(1) Only available in tape and reel packaging. A reel

contains 2500 devices.

PIN CONFIGURATION

BLOCK DIAGRAM

Top View

(14-Pin TSSOP)

652 MITCHELL ROAD NEWBURY PARK CA 91320

12 3 4 5 6 7...12

中文翻译

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与SC1405BTS.TRT相关器件

型号	品牌	获取价格	描述	数据表
SC1405CTS.TR	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, 0.635 MM PITCH, MO-153AB1, TSSOP-14
SC1405CTS.TRT	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, 0.635 MM PITCH, MO-153AB1, TSSOP-14
SC1405CTST	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 2A, PDSO14, MO-153AB1, TSSOP-14
SC1405CTSTR	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, 0.635 MM PITCH, MO-153AB1, TSSOP-14
SC1405CTSTRT	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, 0.635 MM PITCH, MO-153AB1, TSSOP-14
SC1405D	SEMTECH	获取价格	High Speed Synchronous Power MOSFET Smart Driver
SC1405DISTR	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, SOIC-14
SC1405DISTRT	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, SOIC-14
SC1405DITSTR	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, TSSOP-14
SC1405DITSTRT	SEMTECH	获取价格	High Speed Synchronous Power MOSFET Smart Driver

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