Datasheet > CS7054

CS7054

更新时间： 2024-11-15 22:28:47

品牌	Logo	应用领域
樱桃 - CHERRY		控制器
页数	文件大小	规格书
6页	147K
描述
Low Side PWM FET Controller

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CS7054 数据手册

CS7054

Low Side PWM FET Controller

Features

Description

The CS7054 is a monolithic integrat- potentiometer referenced to the on-

■ 200 mA Peak PWM Gate

ed circuit designed primarily to

control the rotor speed of perma-

nent magnet, direct current (DC)

brush motors. It drives the gate of

an N channel power MOSFET or

IGBT with a user-adjustable, fixed

frequency, variable duty cycle,

pulse width modulated (PWM) sig-

nal. The CS7054 can also be used to

control other loads such as incan-

descent bulbs and solenoids.

chip 5V linear regulator, or a fil-

tered 0% to 100% PWM signal also

referenced to the 5V regulator.

Drive Output

■ Patented Voltage

The IC is placed in a sleep state by

pulling the CTL lead below 0.5V. In

this mode everything on the chip is

shut down except for the on-chip

regulator and the overall current

draw is less than 275 µA. There are

a number of on-chip diagnostics

that look for potential failure modes

and can disable the external power

MOSFET.

Compensation Circuit

■ 100% Duty Cycle

Capability

■ 5V, ± 3% Linear Reg.

■ Low Current Sleep Mode

■ Overvoltage Protection

Inductive current from the motor or

solenoid is recirculated through an

external diode.

■ Over Current Protection

of External MOSFET /

IGBT

The CS7054 accepts a DC level

input signal of 0 to 5V to control the

pulse width of the output signal.

This signal can be generated by a

■ Output Inhibit

Application Diagram

Package Options

MOT+

14 Lead PDIP

R_GATE

V_BAT

R_S

42.5mH

MOT-

.01mF

10mF

OUTPUT

1000mF

V_CC

1000mF

Gnd

FLT

PGnd

INH

OUTPUT

V_CC

PGnd

INH

Gnd

FLT

.25mF

C_FLT

C_OSC

R_OSC

I_ADJ

390pF

I_ADJ

C_OSC

R_OSC

R_CS1

I_SENSE+

R_OSC

105K

C_CS

.022mF

R_SENSE

4mW

I_SENSE-

CTL

I_SENSE-

V_REG

CTL

V_REG

R_CS2

Input

10K

100K

10mF

10K

Consult factory for 16 lead SO

wide package.

10K

Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885-3600 Fax: (401)885-5786

Email: info@cherry-semi.com

Web Site: www.cherry-semi.com

Rev. 4/21/99

Company

12 3 4 5 6

中文翻译

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