BA6209N现货热卖使用介绍供应商报价哪里找芯片批发报价-中国IC网-芯三七

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产品型号BA6209N的概述

芯片BA6209N的概述 BA6209N是一款高性能的音频放大器芯片，广泛应用于音响设备、电视机、计算机音响等领域。其主要特性是低失真、高增益和宽频带等，这使得它非常适合播放高保真音频信号。在设计时，BA6209N以其优异的性能和适应性，受到了众多电子工程师和音频爱好者的青睐。芯片BA6209N的详细参数 BA6209N的主要参数如下： - 电源电压：通常工作在12V至20V之间，具有较大的电压范围，适合各种设备的供电需求。 - 输出功率：在负载为4Ω时，最大输出功率可达到10W，5Ω时可达8W，显示出其强大的驱动能力。 - 频率响应：可覆盖20Hz至20kHz的音频频段，保证了音频信号的高质量输出。 - 总谐波失真（THD）：在额定功率输出时，失真小于0.1%，确保了音频信号的清晰度。 - 增益：增益为20dB，适用于大多数音频系统。 - 输出保护：具备短路保护和过流保护功能，能够...

产品型号BA6209N的Datasheet PDF文件预览

Motor driver ICs

Reversible motor driver

BA6209 / BA6209N

The BA6209 and BA6209N are reversible-motor drivers suitable for brush motors. Two logic inputs allow three output

modes: forward, reverse, and braking. The motor revolving speed can be set arbitrarily by controlling the voltage applied

to the motor with the control pin voltage V^R.

FApplications

VCRs and cassette tape recorders

FFeatures

1) Power transistors can handle a large current

(1.6A maximally).

5) Small standby current.

(V^CC= 12V, IO = 5.5mA typically)

2) Brake is applied when stopping the motor.

3) Built-infunctiontoabsorbrushcurrentsgeneratedby

reversing and braking.

6) Stable operation during mode changes either from

forward to reverse or vice versa.

7) Interface with CMOS devices.

4) Motor speed controlling pin.

FBlock diagram

386

Motor driver ICs

BA6209 / BA6209N

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)

FElectrical characteristics (unless otherwise noted, Ta = 25_C and V^CC= 12V)

FElectrical characteristic curves

387

Motor driver ICs

BA6209 / BA6209N

388

Motor driver ICs

BA6209 / BA6209N

FMeasurement circuit

389

Motor driver ICs

BA6209 / BA6209N

FCircuit operation

Input / output truth table

(3) Rush current absorption circuit

When a high voltage (caused by such as a motor rever-

sal) is generated on OUT1 and OUT2, an internal

comparator detects the high voltage and turns on an in-

ternal circuit that absorbs rush currents.

(4) Drive circuit

The forward direction of the motor connected between

OUT1 and OUT2 corresponds to the current flow from

OUT1 to OUT2, and the reverse direction corresponds to

the current flow from OUT2 to OUT1. The output voltage

(V^OUT) applied to the motor is given by the equation :

V^OUT(V) = VZD * VCE (sat.) = VZD * 0.2 (IOUT = 100mA)

where V^ZDis the zener voltage of the constant voltage

diode (ZD) connected to pin 4.

Forward / reverse control, forced stop, and rush current

absorption are controlled by the combination of F^INand

R^INinput states.

(1) Forward / reverse control circuit

When F^INis HIGH and RIN is LOW, current flows from

OUT1 to OUT2. When F^INis LOW and RIN is HIGH, cur-

rent flows from OUT2 to OUT1 (refer to the truth table).

(2) Forced stop circuit

If V^refis left OPEN, the output voltage (VOUT) is given by

the equation :

V^OUT(V) = VCC1 * VCE (sat.) (PNP) * 2VF * VCE (sat.)

By setting R^INand FIN both HIGH or both LOW, power

supply to the motor is shut down and a brake is applied

by absorbing the motor counter-electromotive force.

= V^CC1 * 1.8 (IOUT = 100mA)

FPin descriptions

390

Motor driver ICs

BA6209 / BA6209N

FOperation notes

(1) Resistor dividing IC power consumption

To reduce power dissipated in the IC, a resistance (about

3X10Ω)mustalwaysbeconnectedbetweenV^CCandthe

power supply pin of the driver circuit. If V^CC2is connected

to V^CCwith no resistor, the IC can be damaged by over-

current when operated at the voltage range close to the

maximum operating voltage.

This should be avoided by detecting the motor operating

current in a way shown in Fig. 20.

(2) Control signal waveform

The rise and fall times of signals applied to the control

pins should be 5ms or less. Longer times can cause er-

ratic operation of the internal logic circuits and may result

in damage to the driver circuits.

(4) Input pins

Voltage should never be applied to the input pins when

the V^CCvoltage is not applied to the IC. Similarly, when

V^CCis applied, the voltage on each input pin should be

less than VCC and within the guaranteed range for the

electrical characteristics.

(5) Back-rush voltage

Depending on the ambient conditions, environment, or

motor characteristics, the back-rush voltage may fluctu-

ate. Be sure to confirm that the back-rush voltage will not

adversely affect the operation of the IC.

For example, if the supply voltage for the external control

circuit comes up after the supply voltage of the IC, the ris-

ing edge of the control signal slowly follows the rise of the

externalsupplyvoltage. Thiscouldresultinerraticopera-

tion or damage to the IC due to excess currents.

(6) Large current line

Largecurrentsarecarriedbythemotorpowersupplyand

motor ground for these ICs.

Therefore, the layout of the pattern of the PC board and

the constants of certain parameters for external compo-

nents, such as the capacitor between the power supply

and ground, may cause this large output current to flow

back to the input pins, resulting in output oscillation or

other malfunctions. To prevent this, make sure that the

PC board layout and external circuit constants cause no

problems with the characteristics of these ICs.

(7) Power dissipation

(3) IC ground voltage

To provide separation between the circuit elements with-

in the IC, the GND pin of the IC must always be held at

a lower potential than the other pins.

The power dissipation will fluctuate depending on the

mounting conditions of the IC and the ambient environ-

ment. Make sure to carefully check the thermal design of

the application where these ICs sill be used.

(8) Power consumption

IfthepotentialoftheGNDpinisallowedtoriseabovethat

of other pins (such as the control input pins), separation

between the internal circuit elements could break down,

resulting in erratic operation or internal damage.

For example, a resistor may be connected between GND

(pin 1) and the ground as shown in Fig. 19, when detect-

ing and controlling the motor operating current. In this

case, thepotentialofpin1wouldbeabovethegroundpo-

tential by an amount equal to the voltage drop across the

resistor. Therefore, dropping the input pin potential to the

ground potential would have the effect of applying a neg-

ative voltage to the input pin.

The power consumption by the IC varies widely with the

power supply voltage and the output current. Give full

consideration to the power dissipation rating and the

thermal resistance data and transient thermal resistance

data, to provide a thermal design so that none of the rat-

ings for the IC are exceeded.

391

Motor driver ICs

BA6209 / BA6209N

(9) ASO

Make sure that the output current and supply voltage do

not exceed the ASO values.

(10) Precautions for input mode switching

To ensure reliability, it is recommended that the mode

switching for the motor pass once through the open

mode.

(11) There are no circuits built into these ICs that pre-

vent in-rush currents. Therefore, it is recommended to

place a current limiting resistor or other physical counter-

measure.

(12) If the potential of the output pin sways greatly and

goes below the potential of ground, the operation of the

IC may malfunction or be adversely affected. In such a

case, place a diode between the output and ground, or

other measure, to prevent this.

(13) The quality of these products have been carefully

checked; however, use of the products with applied volt-

ages, operating temperatures, or other parameters that

exceed the absolute maximum rating given may result in

the damage of the IC and the product it is used in. If the

IC is damaged, the short mode and open modes cannot

be specified, so if the IC is to be used in applications

where parameters may exceed the absolute maximum

ratings, then be sure to incorporate fuses, or other physi-

cal safety measures.

392

Motor driver ICs

BA6209 / BA6209N

FApplication example

FExternal dimensions (Units: mm)

393

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BA6209N产品参数

型号:	BA6209N
是否无铅：	不含铅
是否Rohs认证：	符合
生命周期：	Obsolete
IHS 制造商：	ROHM CO LTD
零件包装代码：	SIP
包装说明：	DIP, SIP10,.05
针数：	10
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
风险等级：	5.69
模拟集成电路 - 其他类型：	BRUSH DC MOTOR CONTROLLER
JESD-30 代码：	R-PSIP-T10
JESD-609代码：	e2
长度：	25.2 mm
功能数量：	1
端子数量：	10
最高工作温度：	75 °C
最低工作温度：	-20 °C
最大输出电流：	1.6 A
封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP
封装等效代码：	SIP10,.05
封装形状：	RECTANGULAR
封装形式：	IN-LINE
峰值回流温度（摄氏度）：	260
电源：	12 V
认证状态：	Not Qualified
座面最大高度：	7.2 mm
子类别：	Motion Control Electronics
最大供电电流 (Isup)：	10 mA
最大供电电压 (Vsup)：	18 V
最小供电电压 (Vsup)：	6 V
标称供电电压 (Vsup)：	12 V
表面贴装：	NO
技术：	BIPOLAR
温度等级：	COMMERCIAL EXTENDED
端子面层：	Tin/Copper (Sn/Cu)
端子形式：	THROUGH-HOLE
端子节距：	2.54 mm
端子位置：	SINGLE
处于峰值回流温度下的最长时间：	10
宽度：	2.8 mm
Base Number Matches：	1

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