BA9700

更新时间： 2024-11-22 22:25:31

品牌	Logo	应用领域
罗姆 - ROHM		转换器稳压器开关
页数	文件大小	规格书
7页	144K
描述
Switching regulator for DC / DC Converters

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中文翻译

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数据手册

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BA9700 数据手册

BA9700A / BA9700AF / BA9700AFV

Regulator ICs

Switching regulator for DC / DC

Converters

BA9700A / BA9700AF / BA9700AFV

The BA9700A, BA9700AF and BA9700AFV are switching regulators that use a pulse width modulation (PWM) system.

They use a transistor switch to stabilize the output voltage.

By the use of the transistor, power loss is decreased, fluctuation efficiency is improved, and the circuit is made more

compact and single.

!Features

1) Output voltage can step up, step down, or invert at an

arbitrary level.

6) Dead time controller restricts operation when

overloaded.

2) Low current consumption. (typically 1.7mA)

3) Wide oscillation frequency range.

(typically 2.8k ~ 470kHz)

7) Power switch can isolate all circuits in the IC.

8) Best suited for battery operated equipment.

9) Compact 14-pin SSOP package (BA9700AFV).

4) Built-in reference voltage current. (typically 2.57V)

5) Operates at low voltage. (minimally 3.55V)

!Block diagram

NON

POWER

INVERT

INPUT

INVERT

INPUT

1/2 V^ref

ref

N. C.

Voltage

Regulator

−

30k

Error

Amp

ref

BA9700A

BA9700AF

PWM

Comparator

Triangle

Oscillator

N. C.

FEED

BACK

OUT

GND

D - TIME

CONT

!Absolute maximum ratings (Ta = 25°C)

Parameter

Symbol

Limits

Unit

Power supply voltage

BA9700A

600

350

Power

dissipation

BA9700AF

BA9700AFV

Operating temperature

Storage temperature

Topr

Tstg

-20~+80

°C

-55~+150

1 BA9700A: Reduced by 4.8 mW for each increase in Ta of 1˚C over 25˚C.

2 BA9700AF: Reduced by 4.4 mW for each increase in Ta of 1˚C over 25˚C.

3 BA9700AFV : Reduced by 3.5 mW for each increase in Ta of 1˚C over 25˚C.

2, 3 When mounted on a 5.0´5.0´1.6 mm glass epoxy board.

* *

12 3 4 5 6 7

中文翻译

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与BA9700相关器件

型号	品牌	获取价格	描述	数据表
BA9700A	ROHM	获取价格	Switching regulator for DC / DC Converters
BA9700A-DX	ROHM	获取价格	Switching Controller, PDIP14, DIP-14
BA9700AF	ROHM	获取价格	Switching regulator for DC / DC Converters
BA9700AF-DX	ROHM	获取价格	Switching Controller, PDSO14, SOP-14
BA9700AF-DXE1	ROHM	获取价格	Switching Controller, PDSO14, SOP-14
BA9700AF-DXE2	ROHM	获取价格	Switching Controller, PDSO14, SOP-14
BA9700AF-DXT1	ROHM	获取价格	Switching Controller, PDSO14, SOP-14
BA9700AF-DXT2	ROHM	获取价格	Switching Controller, PDSO14, SOP-14
BA9700AFE1	ROHM	获取价格	SWITCHING CONTROLLER, PDSO14, SOP-14
BA9700AF-E1	ROHM	获取价格	Switching Regulator, Voltage-mode, PDSO14, SOP-14