Datasheet > B3842A1P

B3842A1P

更新时间： 2024-09-24 22:39:23

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
10页	427K
描述
Current Mode PWM Controller

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B3842A1P 数据手册

Bay Linear

Inspire the Linear Power

Current Mode PWM Controller

B3842/43/44/45A&A1

Description

Features

•

Low Start-Up and Operating Current

Maximum Duty Cycle

The Bay Linear B3842/43/44/45 are fixed frequency current-

mode PWM controller. These devices are designed for Off-

Line and DC-to-DC converter applications with minimum

external components. The B3842 family Feature a trimmed

oscillator for precise duty cycle control, a temperature

compensated reference, high gain error amplifier, current

sensing comparator, and a high current totempole output.

Ideally suited for driving a power N-Channel MOSFET’s. It is

low when is on off stage. Protection circuitry includes built in

under-voltage lockout and current limiting.

Operating Frequency Up to 500KHz

Under voltage Lockout with Hysteresis

Available in 8 pin SOIC

•

Similar to industry Standard UC3842

Major differences between members of these series are the

UVLO thresholds and maximum duty-cycle ranges. Typical

UVLO thresholds of 16V (on) and 10V (off) on the B3842 and

B3844 devices make them ideally suited to off-line

applications. These corresponding typical thresholds for the

B3842 and B3845 devcies are 8.4V (on) and 7.6V (off). The

B3842 and B3843 devcies can operate to duty cycles

approaching 100%. A duty-Cycle range of 0 to 50% is

obtained by the B3844 and B3845 by the addition of an

internal toggle flip-flop, which blanks the output off every

other clock cycle. It id available in 8 pin DIP and SOIC

packages.

Applications

•

Switching Power Supply

Monitor

Pin Connection

Ordering Information

Devices

B384X(Z)M

B384X(Z)P

Package

Temp.

SO-8

0 °C to 70 °C

8-DIP

Z=A ON Semi Z=A1 Fairchild & Samsung

8-Pin Surface Mount

COMP

REF

VCC

OUTPUT

GND

ISENSE

RT/CT

Top View

Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556

www.baylinear.com

12 3 4 5 6 7...10

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与B3842A1P相关器件

型号	品牌	获取价格	描述	数据表
B3842AM	ETC	获取价格	Current Mode PWM Controller
B3843	ETC	获取价格	Current Mode PWM Controller
B3843A1P	ETC	获取价格	Current Mode PWM Controller
B3843AM	ETC	获取价格	Current Mode PWM Controller
B3844	ETC	获取价格	LOW-LOSS FILTER
B384402L1	COOPER	获取价格	Barrier Strip Terminal Block, 50A, 1 Row(s), 1 Deck(s)
B384402L2	COOPER	获取价格	Barrier Strip Terminal Block, 50A, 1 Row(s), 1 Deck(s)
B384402L3	COOPER	获取价格	50 A, BARRIER STRIP TERMINAL BLOCK, 1 ROW, 1 DECK
B384402L4	COOPER	获取价格	50 A, BARRIER STRIP TERMINAL BLOCK, 1 ROW, 1 DECK
B384402L6	COOPER	获取价格	50 A, BARRIER STRIP TERMINAL BLOCK, 1 ROW, 1 DECK