Datasheet > BD9040FV_09

BD9040FV_09

更新时间： 2024-02-17 12:41:32

品牌	Logo	应用领域
罗姆 - ROHM		稳压器开关控制器
页数	文件大小	规格书
19页	579K
描述
Step-down,High-efficiency Switching Regulators (Controller type)

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中文翻译

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数据手册

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BD9040FV_09 数据手册

Large Current External FET Controller Type Switching Regulators

Step-down,High-efficiency

Switching Regulators (Controller type)

BD9040FV,BD9045FV

No.09028EAT03

●Over View

BD9040FV(output type of 1ch) and BD9045FV(output type of 2ch) are switching controllers that can be used within the wide

range of the input.Highly effective can be achieved by the synchronous rectification method and it is possible to contribute to

the eco-design of all electronic equipment (energy-saving).

●Feature(BD9040FV，BD 9045FV)

1) Wide input voltage range：4.5V～18V

2) Reference voltage 0.9V±1%

3) The overcurrent of timer latch type, excess voltage, short, and RTO/S protection are built-in

4) The switching frequency is changeable.(200kHz～750kHz)

5) A ceramic capacitor can be used for the output.

●Applications

For thin television, DVD･HDD recorder , STB, amusement and others.

●Absolute maximum rating (Ta=25℃)

Parameter

Symbol

Rating

Unit

Power-supply voltage

Vcc

V_EN

EN input voltage

SW voltage

V_SW

Vcc

Voltage between BOOT-SW

Permissible loss 1

V_BOOT

Pd1

0.81** (BD9040FV)

0.94*** (BD9045FV)

-40～+85

℃

Permissible loss 2

Pd2

Range of operating temperature

Storage temperature range

Junction temperature

Topr

Tstg

Tjmax

-55～+150

150

***

Ta=25℃ or more is reduced with 6.5mW/℃.

Ta=25℃ or more is reduced with 7.5mW/℃.

●Operation condition (Ta=-40℃～+85℃)

Limit

Typ

Parameter

Symbol

Unit

Min

4.5

Max

Power supply voltage***

Timing resistance

Vcc

－

130

750

kΩ

kHz

Frequency of oscillator

Fosc

200

***

○

Please be short-circuited to use VREG5 and VCC when the Vcc is 6V or less.

The radiation design is not done.

www.rohm.com

2009.05 - Rev.A

1/18

12 3 4 5 6 7...19

中文翻译

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