UC2824
- Complementary Outputs
- Practical Operation Switching Frequencies to 1 MHz
- 50-ns Propagation Delay to Output
- High Current Dual Totem Pole Outputs (1.5 A Peak)
- Wide Bandwidth Error Amplifier
- Fully Latched Logic With Double Pulse Suppression
- Pulse-by-Pulse Current Limiting
- Soft Start/Maximum Duty Cycle Control
- Under-Voltage Lockout with Hysteresis
- Low Start Up Current (1.1 mA)
- Trimmed Bandgap Reference (5.1 V ± 1%)
The UC1824 family of PWM control devices is optimized for high frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier. This controller is designed for use in either current mode or voltage mode systems with the capability for input voltage feed-forward.
Protection circuitry includes a current limit comparator with a 1-V threshold, a TTL compatible shutdown port, and a soft-start pin which doubles as a maximum duty cycle clamp. The logic is fully latched to provide jitter free operation and prohibit multiple pulses at an output. An under-voltage lockout section with 800 mV of hysteresis assures low start up current. During under-voltage lockout, the outputs are high impedance.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | High Speed PWM Controller 数据表 (Rev. A) | 2007年 7月 8日 |
设计和开发
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订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点