Datasheet > CM6901_12

CM6901_12

更新时间： 2024-01-08 11:55:24

品牌	Logo	应用领域
虹冠电子 - CHAMP		控制器
页数	文件大小	规格书
15页	237K
描述
SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs

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CM6901_12 数据手册

CM6901

SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs

GENERAL DESCRIPTION

FEATURES

CM6901 is a SLS, SRC/LLC + SR resonant controller

and it can operate at both SRC and LLC region with

synchronous rectification to achieve high efficiency. Its

unique features: FM + 2 PWMING modes. It is used for

DC-DC conversion in offline application.

90+ Controller

Smaller and Thinner Transformer

20ms with reasonable Bulk Cap(hold up time)

SLS, SRC/LLC + SR resonant controller

Supply Voltage Range : 10V to 20V.

2 Gate Drivers: Typical Peak Drive from 12V

supply : (PMOS~200 ohm and NMOS~100 ohm).

UVLO =11V with 1V Hystetesis.

Reference OK Comparator.

Light load regulation is accomplished by transitioning

the controller from frequency modulation mode into

PWM mode. To have the optimal balance performance

between hold-up time and efficiency, its frequency range

crosses fr1(resonant frequency).

FM + 2 PWMING Mode Operation

Light Load PWMING (light load regulation)

SR Ideal Diode PWMING(cross resonant frequency

application )

CM6901 system has a constant voltage feedback loop

with precision 2.5V VFB reference. The 1V ILIMIT can

be latched when a standby converter is applied;

otherwise, it is an auto-restart I limit.

GM FEAO, FM modulation Error Amplifier

GM DEAO, PWM Error Amplifier

Close Loop Soft start Capability with Shutdown

Function.

Auto-Restart during Current Limit .

Precision 2.5V VFB threshold for constant voltage

feedback loop.

Precision 1V I limit threshold.

Patented

APPLICATIONS

CM6901 Pin Configuration

DC-DC power supply.

2012/05/09 Rev2.0

Champion Microelectronic Corporation

Page 1

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