UC3638数据手册集成电路(IC)的电机驱动器控制器规格书PDF
UC3638规格书详情
描述 Description
The UC2638 family of integrated circuits are advanced pulse width modulators intended for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. Similar in architecture to the UC2637, all necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.
Key features of the UC2638 include a programmable high speed triangle oscillator, a 5X differential current sensing amplifier, a high slew rate error amplifier, high speed PWM comparators, and two 50mA open collector as well as two ±500mA totem pole output stages. The individual circuit blocks are designed to provide practical operation to switching frequencies of 500kHz.
Significant improvements in circuit speed, elimination of many external programming components, and the inclusion of a differential current sense amplifier, allow this controller to be specified for higher performance applications, yet maintain the flexibility of the UC2637. The current sense amplifier in conjunction with the error amplifier can be configured for average current feedback. The additional open collector outputs provide a drive signal for the highside switches in a full bridge configuration. The programmable AREFIN pin allows for single or dual supply operation. Oscillator ramp amplitude and PWM deadband are programmable by tapping a voltage divider off the 5V reference to the appropriate programming input (PVSET or DB).
Additional features include a precision externally available 5V reference, undervoltage lockout, pulse-by-pulse peak current limiting, and a remote shutdown port. The UC1638 family is available in the 20 pin N, DW and J packages. Consult the factory for other packaging options.
特性 Features
·Single or Dual Supply Operation
·Accurate High Speed Oscillator
·Differential X5 Current Sense Amplifier
·Bidirectional Pulse-by-Pulse Current Limiting
·Programmable Oscillator Amplitude and PWM Deadband
·Dual 500mA Totem Pole Output Drivers
·Dual 60V, 50mA Open Collector Drivers
·Undervoltage Lockout
技术参数
- 制造商编号
:UC3638
- 生产厂家
:TI
- Operating Supply (Max)(V)
:36
- Operating Supply Current (mA)
:15
- Peak Output Current (A)
:0.4
- Features
:Current-Limited; DC Motor Control; Diff Curr Sense Amp; Switching Control
- Rating
:Catalog
- Operating Temperature Range (C)
:0 to 70
- Pin/Package
:20PDIP; 20SOIC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
三年内 |
1983 |
只做原装正品 |
询价 | |||
TI |
DIP20 |
01+ |
54 |
全新原装进口自己库存优势 |
询价 | ||
TI |
20+ |
SOIC20 |
53650 |
TI原装主营-可开原型号增税票 |
询价 | ||
TI/德州仪器 |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
TI&BB |
24+ |
SOIC20 |
2659 |
原装正品!公司现货!欢迎来电洽谈! |
询价 | ||
TI |
2016+ |
SOP20 |
6528 |
只做进口原装现货!或订货,假一赔十! |
询价 | ||
TI |
2018+ |
26976 |
代理原装现货/特价热卖! |
询价 | |||
TI |
25+ |
SOIC20 |
2500 |
强调现货,随时查询! |
询价 | ||
TI/德州仪器 |
21+ |
SOP20 |
3000 |
百域芯优势 实单必成 可开13点增值税发票 |
询价 | ||
TI/德州仪器 |
23+ |
DIP |
11200 |
原厂授权一级代理、全球订货优势渠道、可提供一站式BO |
询价 |