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參數(shù)資料
| 型號(hào)： | UC3845-S08-R |
| 廠商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 307K |
| 代理商： | UC3845-S08-R |
UC3844/45
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 7
QW-R103-010,C
PIN CONFIGURAT ION
PIN DESCRIPT ION
PIN NO
1
PIN NAME
Compensation Error amplifier output, this pin is made available for loop compensation.
Voltage Feedback, the inverting input of the Error Amplifier. It is normally connected to the
switching power supply output through a resistor divider.
A voltage proportional to inductor current is connected to this input. The PWM uses this
information to terminate the output switch conduction.
The Oscillator frequency and maximum output duty cycle are programmed by connecting
resistor R
T
to Vref and capacitor C
T
to ground. Operation to 1 MHz is possible.
GND
Power ground.
This output directly drives the gate of a power MOSFET. Peak currents up to 1A are
sourced and sunk by this pin. The output switches at one-half the oscillator frequency.
V
CC
Positive supply.
V
REF
Reference output, provides charging current for capacitor C
T
though resistor R
T
.
FUNCTION
2
V
FB
3
I
SENSE
4
R
T
/C
T
5
6
Output
7
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UC3845-S08-T | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| UC3844L-D08-T | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| UC3844L-S08-R | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| UC3845A | High Performance Current Mode PWM Controller(高性能電流模式PWM控制器) |
| UC3845B | High Performance Current Mode PWM Controller(高性能電流模式PWM控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3845-S08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| UC3845T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC3845TD | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC3845TN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| UC3845W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller |
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