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參數(shù)資料
| 型號： | UC3843A-S08-R |
| 廠商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | CURRENT MODE PWM CONTROL CIRCUITS |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 106K |
| 代理商： | UC3843A-S08-R |
UC3842A/3843A
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 9
QW-R103-002,D
OPEN-LOOP LABORAT ORY T ES T FIX T URE
1
2
8
7
3
6
4
5
A
V
REF
Vcc
1k
/ 1W
0
μ
F
CT
RT
1
5k
4
4
0
μ
F
Error
Amp
Adjust
I
A
OUTPUT
High peak current associated with capacity loads necessitate careful grounding techniques. Timing and bypass
capacitors should be connected close to pin 5 in single point GND. The transistor and 5k
potentio-meter are used
to sample the oscillator waveform and apply an adjustable Ramp to Pin 3.
UNDER-V OLT AGE LOCK OUT
7
Vcc
Von=16V
Voff=10V
ON/OFF Command
to rest of IC
Von
Voff
<1mA
<15mA
Icc
Vcc
During Under-Voltage Lockout, the output driver is biased to a high impedance state. Pin 6 should be shunt to
GND with a bleeder resistor to prevent activating the power switch with output leakage currents.
ERROR AMPLIFIER CONFIGURAT ION
2
1
0.5mA
2.5V
Zf
Zi
Error amplifier can source or sink up to 0.5mA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UC3843A-S08-T | CURRENT MODE PWM CONTROL CIRCUITS |
| UC3842A-D08-T | CURRENT MODE PWM CONTROL CIRCUITS |
| UC3842G | HIGH PERFORMANCE CURRENT MODE CONTROLLER |
| UC3842G-D08-R | HIGH PERFORMANCE CURRENT MODE CONTROLLER |
| UC3842G-D08-T | HIGH PERFORMANCE CURRENT MODE CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3843A-S08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:CURRENT MODE PWM CONTROL CIRCUITS |
| UC3843AY | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| UC3843B | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| UC3843BCD1G | 制造商:ON Semiconductor 功能描述: |
| UC3843BD | 功能描述:電流型 PWM 控制器 52kHz 1A Current PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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