TL494CN
TI(德州仪器)
企业名:深圳市广辉电子有限公司
类型:
电话: 13686868407
手机:13686868407
联系人:陈树辉
微信:
邮箱:659974144@qq.com
地址:广东深圳深圳市深南东路金城大厦3-10-A//柜台:深圳市华强北路新华强电子世界Q3B026室
∟ 其他IC(5)
描述 : |
IC PWM VM 16DIP |
标准包装 : | 25 |
系列 : | SWITCHMODE™ |
PWM 型 : |
电压模式 |
输出数 : |
1 |
频率 - : |
200kHz |
占空比 : |
50% |
电源电压 : |
7 V ~ 40 V |
降压 : |
无 |
升压 : |
无 |
回扫 : |
无 |
反相 : |
无 |
倍增器 : |
无 |
除法器 : |
无 |
Cuk : |
无 |
隔离 : |
无 |
工作温度 : |
0°C ~ 70°C |
封装/外壳 : |
16-DIP(0.300", 7.62mm) |
包装 : |
管件 |
The TL494 incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.
The TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits.
The error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC–2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies.
The uncommitted output transistors provide either common-emitter or emitter-follower output capability. The TL494 provides for push-pull or single-ended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation.
The TL494C is characterized for operation from 0°C to 70°. The TL494I is characterized for operation from –40°C to 85°C.
特性:
完整的PWM控制电路
未提交的输出200 - ma水槽或源电流
输出控制选择单端或推拉操作
内部电路禁止双脉冲在任何一个输出
变量死时间提供了控制总范围
内部监管机构提供了一个稳定的供应5%宽容5 v参考
电路架构允许容易同步
企业名:深圳市广辉电子有限公司
类型:
电话: 13686868407
手机:13686868407
联系人:陈树辉
微信:
邮箱:659974144@qq.com
地址:广东深圳深圳市深南东路金城大厦3-10-A//柜台:深圳市华强北路新华强电子世界Q3B026室