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UCC28510
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所属类别：ACDC-和-DCDC-电源
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产品名称：高级 PFC/PWM 组合控制器
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厂商：TI
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生产批号：08+
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封装：20PDIP, 20SOIC
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库存状态：有库存
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库存量：6000
- 最低订购量：1
- 详细资料：
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The combined PFC/PWM controller UCC28510 series provides any off-line power required with IEC1000-3-2 harmonics to reduce the full control functionality of the system. By combining into a single device, significant performance and cost advantages of the PFC and PWM stages of control and drive signals are benefits. The ripple current is minimized at the boost capacitor through a mechanism that manages the two stages of modulation (for PFC-leading modulation and PWM modulation for trailing edge).
Based on the average current mode control architecture, the input voltage is pre-fed by the PFC/PWM combined controller, which these devices offer performance benefits. The two new main features are programmable PWM maximum duty cycle and the option of 2 PWM frequencies for base PFC.
characteristic
- PFC and PWM power stages are provided in one device
- Leading PFC, trailing edge PWM modulation reduces ripple
- Built-in PFC and PWM sequencing steering up
- 2, source and 3 sinks are suitable for PFC and PWM gate drives in both stages
- A typical rise time of 16-ns and a fall time of 7 ns is a load of 1-NF
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Features of PFC:
- Continuous on-mode operation controlled by average current mode
- High linear multiplier power factor of nearly 1
- Input voltage feedforward implementation
- Improved load transient response
- Precise power limits
- Zero power detection
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Features of PWM:
- Peak current mode controls operation
- PFC:PWM frequency options for 1:1 or 1:2
- Programmable maximum duty cycle
- Programmable soft start
- Two different hold time requirements hysteresis options
parameter
| |
UCC28510 |
| On/off of undervoltage lockout threshold (5) |
16/10 |
| Working power supply (max) (five) |
18 |
| Starting Current (mA) |
0.1 |
| Operating Supply Current (mA) |
4 |
| Actual operating frequency (max) (MHz) |
0.5 |
| Pin/Pack |
20PDIP，20SOIC |
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