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參數(shù)資料
| 型號： | 5962-8768103EA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDIP16 |
| 封裝： | DIP-16 |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 676K |
| 代理商： | 5962-8768103EA |
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versions of the standard UC3823 & UC3825 family. Performance enhancements have been
made to several of the circuit blocks. Error amplifier gain bandwidth product is 12MHz
while input offset voltage is 2mV. Current limit threshold is guaranteed to a tolerance of
5%. Oscillator discharge current is specified at 10mA for accurate dead time control.
Frequency accuracy is improved to 6%. Startup supply current, typically 100 uA, is ideal for
off-line applications. The output drivers are redesigned to actively sink current during
UVLO at no expense to the startup current specification. In addition each output is capable
of 2A peak currents during transitions.
Functional improvements have also been implemented in this family. The UC3825
shutdown comparator is now a high-speed overcurrent comparator with a threshold of 1.2V.
The overcurrent comparator sets a latch that ensures full discharge of the soft start capacitor
before allowing a restart. While the fault latch is set, the outputs are in the low state. In the
event of continuous faults, the soft start capacitor is fully charged before discharge to insure
that the fault frequency does not exceed the designed soft start period. The UC3825 Clock
pin has become CLK/LEB. This pin combines the functions of clock output and leading
edge blanking adjustment and has been buffered for easier interfacing.
The UC3825A,B has dual alternating outputs and the same pin configuration of the
UC3825. The UC3823A,B outputs operate in phase with duty cycles from zero to less than
100%. The pin configuration of the UC3823A,B is the same as the UC3823 except pin 11 is
now an output pin instead of the reference pin to the current limit comparator. “A” version
parts have UVLO thresholds identical to the original UC3823/25. The “B” versions have
UVLO thresholds of 16 and 10V, intended for ease of use in off-line applications.
Consult Application Note U-128 for detailed technical and applications information. Contact
the factory for further packaging and availability information.
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Improved versions of the UC3823/UC3825 PWMs
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Compatible with Voltage or Current-Mode Topologies
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Practical Operation at Switching Frequencies to 1MHz
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50ns Propagation Delay to Output
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High Current Dual Totem Pole Outputs (2A Peak)
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Trimmed Oscillator Discharge Current
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Low 100 uA Startup Current
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Pulse-by-Pulse Current Limiting Comparator
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Latched Overcurrent Comparator With Full Cycle Restart
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| 5962-8768104V2A | 1.5 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC20 |
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| 5962-8768102V2A | 2.2 A SWITCHING CONTROLLER, 1180 kHz SWITCHING FREQ-MAX, CQCC20 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-8768104V2A | 功能描述:電流型 PWM 控制器 High Spd PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| 5962-8768104VEA | 功能描述:電流型 PWM 控制器 High Spd PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| 5962-8768105VEA | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 100mA 16-Pin CDIP 制造商:Texas Instruments 功能描述:UC1825AJ-SP, HIGH SPEED PWM - Rail/Tube |
| 5962-87683012A | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Dual 2-to-4 20-Pin LCCC Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-8768301EA | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Dual 2-to-4 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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