Datasheet > A8958CLBTR

A8958CLBTR

更新时间： 2024-11-21 20:41:51

品牌	Logo	应用领域
急速微 - ALLEGRO		电动机控制光电二极管
页数	文件大小	规格书
8页	112K
描述
Voice Coil Motor Controller, 1A, PDSO24, BATWING, POWER, SOIC-24

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技术参数
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A8958CLBTR 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	24
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
模拟集成电路 - 其他类型：	VOICE COIL MOTOR CONTROLLER	JESD-30 代码：	R-PDSO-G24
长度：	15.4 mm	功能数量：	1
端子数量：	24	最高工作温度：	70 °C
最低工作温度：		最大输出电流：	1 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	2.65 mm
最大供电电压 (Vsup)：	16 V	最小供电电压 (Vsup)：	8 V
标称供电电压 (Vsup)：	12 V	表面贴装：	YES
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	7.5 mm	Base Number Matches：	1

A8958CLBTR 数据手册

8958

VOICE COIL MOTOR DRIVER

Providing control and drive of the voice coil motor used for head

positioning in disk drive applications, the A8958CLB is a full-bridge

driver which can be configured so that its output current is a direct

function of an externally applied control voltage or current. This linear

current control function is supplemented by additional circuitry to

protect the heads and the data disk during system failure or normal

system shutdown.

LOGIC

SUPPLY

SENSE

OUT

PARK

DRIVE

INHIBIT

1.5 V

PARK

GROUND

PWR OK

GROUND

LIMIT

The two ±800 mA driver outputs provide very-low saturation voltage

drops and precise current control utilizing a single current-sensing

resistor connected in series with the load. Under-voltage lockout

disables the system in a controlled sequence if a fault condition occurs.

GROUND

SENSE

GROUND

PARK

VOLTAGE

IN+

When activated by the under-voltage comparator, or a park com-

mand, the output power drivers change from a controlled current to a

user-determined constant park voltage. Other features include a power

ok flag, a limit input to force the outputs to their maximum level in either

polarity, an over-riding output disable to shut down both power amplifi-

ers and reduce quiescent supply current, and internal thermal shutdown

which disables the load (but still allowing the head to be parked) in the

event of excessive junction temperatures. The load is re-enabled when

the junction temperature returns to a safe level.

SENSE

IN–

B+

B–

A+

LOAD

SUPPLY

A–

OUT

Dwg. PP-054

ABSOLUTE MAXIMUM RATINGS

The A8958CLB is supplied in a 24-lead power SOIC for surface-

mount applications. The copper batwing construction provides for

maximum package power dissipation in a minimum package size. It is

rated for continuous operation over the temperature range of 0°C to

+70°C.

at T_A= 25°C

Supply Voltages, V_BBand V_CC............... 16 V

Output Current, I_OUT............................±1.0 A

Park Drive Output Current, I_PARK

Continuous................................ 250 mA

Peak.............................................. 1.0 A

Amplifier Input Voltage Range,

FEATURES

■ Controlled-Velocity Head Parking

V_IN..................................... -2.0 V to V_CC

Sense Input Voltage Range,

V_{SENSE IN}............................ -0.3 V to V_CC

Comparator and Digital Inputs,

■ Zero Deadband

■ High Transconductance Bandwidth

■ User-Adjustable Transconductance Gain

■ ±800 mA Load Current

V_IN....................................-0.3 V to 10 V

I_IN.............................................. ±10 mA

Power OK Output, V_CEX......................... 20 V

I_C................................................. 30 mA

Output Clamp Diode Current,

I_F(pulsed) ..................................... 1.0 A

Package Power Dissipation, P_D.. See Graph

Operating Temperature Range,

T_A......................................0°C to +70°C

Junction Temperature, T_J...................150°C*

Storage Temperature Range,

■ Dual Under-Voltage Monitors

with Flag and User-Selectable Trip Points

■ Internal Thermal Shutdown Circuitry

■ Replaces UC3175

T_S................................ -55°C to +150°C

* Fault conditions that produce excessive junction

temperature will activate device thermal shutdown

circuitry. These conditions can be tolerated but

should be avoided.

Always order by complete part number, e.g., A8958CLB .

12 3 4 5 6 7 8

中文翻译

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与A8958CLBTR相关器件

型号	品牌	获取价格	描述	数据表
A8958CLW	ETC	获取价格	Industrial Control IC
A8958SEA	ALLEGRO	获取价格	Voice Coil Motor Controller, 1A, BIPolar, PQCC28, POWER, PLASTIC, LCC-28
A8980	ETC	获取价格	Peripheral IC
A8980CJT	ALLEGRO	获取价格	SUPERSERVO SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER
A-8981-4R-1-LF	MOLEX	获取价格	5.08mm (.200") Pitch Disk Drive Power Connection System Header, Right Angle, Through Hole,
A-8981-4V4-LF	MOLEX	获取价格	5.08mm (.200") Pitch Disk Drive Power Connection System Header, Vertical, Through Hole, 4
A-8981-4V5-LF	MOLEX	获取价格	5.08mm (.200") Pitch Disk Drive Power Connection System Header, Vertical, Through Hole, 4
A-8981-4V6-LF	MOLEX	获取价格	5.08mm (.200") Pitch Disk Drive Power Connection System Header, Vertical, Through Hole, 4
A-8981-4V7-LF	MOLEX	获取价格	5.08mm (.200") Pitch Disk Drive Power Connection System Header, Vertical, Through Hole, 4
A-8981-4V-LF	MOLEX	获取价格	5.08mm (.200") Pitch Disk Drive Power Connection System Header, Vertical, ThroughHole, 4 C

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