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參數(shù)資料
| 型號(hào)： | UC3845-S08-T |
| 廠商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分類(lèi)： | 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(yè)數(shù)： | 6/7頁(yè) |
| 文件大?。?/td> | 307K |
| 代理商： | UC3845-S08-T |
UC3844/45
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 7
QW-R103-010,C
T Y PICAL CHARACTERIST ICS
100
50
10
5.0
1.0
10k
20k
50k
100k
Oscillator Frequency, I
OSC
(Hz)
T
T
(
Ω
)
200k
500k 1.0M
Timing Resistor vs. Oscillator Frequency
2.0
20
75
65
60
10k
20k
50k
100k
P
200k
500k
1.0M
Output Deadtime vs. Oscillator Frequency
55
70
V
CC
= 15V
T
A
= 25
℃
100pF
200pF
500pF
10nF
20nF
50nF
C
T
=10nF
Note: Output Switches At
One-Half The Oscillator
Frequency
50
Oscillator Frequency, I
OSC
(Hz)
1.0nF
2.0nF
5.0nF
C
T
= 10nF
100pF
200pF
500pF
100
80
40
20
-20
10
100
1.0k
10k
Frequency, f (Hz)
O
V
(
100k
1.0M
10M
Error Amp Open Loop Gain Phase vs. Frequency
0
60
1.2
0.8
0.4
0
2.0
4.0
C
I
6.0
8.0
Current Sense Input Threshold vs. Error Amp
Output Voltage
0.2
1.0
V
CC
= 15V
V
OUT
= 2.0V ~ 4.0V
R
L
= 100k
T
A
= 25
℃
Phase
Gain
0
Error Amp Output Voltage, V
OUT
(V)
E
φ
0
30
90
120
180
150
60
0.6
T
A
= 25
℃
V
CC
= 15V
T
A
= 125
℃
T
A
= -55
℃
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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) |
| UC3843B | 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 |
|---|---|
| UC3845T | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC3845TD | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC3845TN | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Analog IC |
| UC3845W | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:SMPS Controller |
| UC3846 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:Current Mode PWM Controller |
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