SC1210

更新时间： 2024-01-25 07:40:39

品牌	Logo	应用领域
商升特 - SEMTECH		驱动器
页数	文件大小	规格书
9页	158K
描述
High Speed, 12 V, Synchronous Power MOSFET Driver

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SC1210 数据手册

SC1210

High Speed, 12 V, Synchronous

Power MOSFET Driver

POWER MANAGEMENT

Features

Description

The SC1210 is a high speed, dual output driver designed ꢀ High efficiency

to drive high-side and low-side MOSFETs in a synchro-

nous Buck converter. These drivers can work with many

Semtech PWM controllers to provide a cost effective

multi-phase voltage regulator for advanced micropro-

cessors.

ꢀ +12V supply voltage with internal LDO for optimum

gate drive

ꢀ High peak drive current

ꢀ Adaptive non-overlapping gate drives provide

shoot-through protection

ꢀ Fast rise and fall times (15ns typical with 3000pf

load)

ꢀ Ultra-low (<30ns) propagation delay (BG going low)

ꢀ Floating top gate drive

ꢀ Crowbar function for over voltage protection

ꢀ High frequency (to 1.5 MHz) operation allows use

of small inductors and low cost ceramic capacitors

ꢀ Under-voltage-lockout

A 30ns max propagation delay from input transition to

the gate of the power FET’s guarantees operation at high

switching frequencies. Internal overlap protection circuit

prevents shoot-through from Vin to PGND in the main

and synchronous MOSFETs. The adaptive overlap pro-

tection circuit ensures the bottom FET does not turn on

until the top FET source has reached 1V, to prevent cross-

conduction.

ꢀ Low quiescent current

8.5V gate drive provides optimum enhancement of

MOSFETs at minimum driver and MOSFET switching loss.

High current drive capability allows fast switching, thus

reducing switching losses at high (up to 1.5MHz) frequen-

cies without causing thermal stress on the driver.

Applications

ꢀ Intel Pentium^TMprocessor power supplies

Under-voltage-lockout and over-temperature shutdown

features are included for proper protection and safe op- ꢀ AMD Athlon^TMand K8^TMprocessor power supplies

eration. Timed latches and improved robustness are built

into the safty functions such as the Under Voltage Lock-

out and adaptive Shoot-through protection circuitry to

prevent false triggering. The SC1210 is offered in a stan-

dard SO-8 package.

ꢀ High current low voltage DC-DC converters

Typical Application Circuit

Vin (+12V)

2R2

10uF

1R0

Vout

DRN

PGND

1uF

PWM

BST

VREG

VIN

1R 0

SC1210

1uF

2.2nF

1N 4148

1uF

www.semtech.com

August 8, 2003

12 3 4 5 6 7...9

中文翻译

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SC-1210	NIDEC	获取价格	ROTARY CODED SWITCHES
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SC1210-101	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC1210-150BSMD	SOCAY	获取价格	Surface Mount 2-Electrode Gas Discharge Tube (GDT)
SC1210-1R0	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC1210-200BSMD	SOCAY	获取价格	Surface Mount 2-Electrode Gas Discharge Tube (GDT)
SC1210-220	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC1210-221	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC1210-22RFT10	TTELEC	获取价格	Anti Sulphur Chip Resistors

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