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參數(shù)資料
| 型號(hào)： | UC3845L-S08-T |
| 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： | LEAD FREE, SOP-8 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 307K |
| 代理商： | UC3845L-S08-T |
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-R | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| 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) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3845N | 功能描述:電流型 PWM 控制器 Current Mode PWM 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 |
| UC3845N 93 | 制造商:DIP 功能描述:3845 |
| UC3845N | 制造商:Texas Instruments 功能描述:Pulse Width Modulation (PWM) Controller |
| UC3845N93 | 制造商:DIP 功能描述:3845 |
| UC3845NG | 功能描述:電流型 PWM 控制器 52kHz 1A Current PWM w/48% Duty Cycle Max 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 |
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