8932-A中文资料Allegro数据手册PDF规格书
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8932-A规格书详情
VOICE-COIL MOTOR DRIVER
Providing control and drive of the voice-coil motor used for head positioning in 5 V disk drive applications, the second-generation A8932CLWA is a full-bridge driver that 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.
The two ±500 mA MOS driver outputs provide very low saturation voltage and minimal power dissipation. Additional headroom is achieved by the sense-FET structure eliminating the need for an external current-sense resistor. Internal circuitry can be configured to provide closed-loop velocity control of the actuator by utilizing the generated back-EMF of the voice-coil motor. Thermal protection and under-voltage lockout disables the system in a controlled sequence if a fault condition occurs.
FEATURES
■ Class-B, 2 Ω rDS(on) at 500 mA Output
■ Lossless Current Sensing
■ Zero Current-Loop Deadband
■ High Transconductance Bandwidth
■ User-Adjustable Transconductance Gain
■ Digital Transconductance Gain Switch (4:1 Ratio)
■ 5 Volt Monitor with Selectable UV Trip Point
■ Retract Circuitry Functional to 0 Volts
■ Sleep Mode Function
■ Internal Back-EMF Velocity Loop Option
■ Internal Thermal Shutdown Circuitry
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
24+ |
N/A |
69000 |
一级代理-主营优势-实惠价格-不悔选择 |
询价 | |||
TYCO/泰科 |
21+ |
65200 |
询价 | ||||
ALLEGRO |
23+ |
原厂原包 |
19960 |
只做进口原装 终端工厂免费送样 |
询价 | ||
NS |
2023+ |
SOP8 |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
NS/国半 |
22+ |
SOP-8 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
PHI |
23+ |
TO220 |
2500 |
全新原装假一赔十 |
询价 | ||
NS/国半 |
22+ |
SOP-8 |
354000 |
询价 | |||
MAXIM/美信 |
23+ |
QFN |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
询价 | ||
KEL |
SMD-40 |
35560 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
TE/泰科 |
2420+ |
/ |
172207 |
一级代理,原装正品! |
询价 |