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參數(shù)資料
| 型號： | UC3842A-D08-T |
| 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, DIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 106K |
| 代理商： | UC3842A-D08-T |
UC3842A/3843A
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 9
QW-R103-002,D
ELECT RICAL CHARACT ERIS T ICS (Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Current Sense section
Gain
Maximum Input signal
PSRR
Input Bias Current
Delay to Output
Output Section
G
V
V
I(MAX)
I
BIAS
(Note 2,3)
Vpin 1=5V( Note 2)
12
V
CC
Vpin 3=0 to 2V
2.85
0.9
3
1
70
-2
150
3.15
1.1
-10
300
V/V
V
dB
μ
A
ns
25V
I
O(SINK)
=20mA
I
O(SINK)
=200mA
I
O(SOURCE)
=20mA
I
O(SOURCE)
=200mA
T
J
=25
°
C,C
L
=1nF(Note 1)
T
J
=25
°
C,C
L
=1nF(Note 1)
0.1
1.5
13.5
13.5
50
50
0.4
2.2
150
150
V
V
V
V
ns
ns
Low
V
OL
13
12
Output Level
High
V
OH
Rise Time
Fall Time
Under-Voltage Lockout Output Section
t
R
t
F
3842A
3843A
3842A
3843A
14.5
7.8
8.5
7
16
8.4
10
7.6
17.5
9
11.5
8.2
V
V
V
V
Start Threshold
V
TH(ST)
Min. Operating Voltage
V
OPR(MIN)
After Turn On
PWM Section
MAX
Min
D
(MAX)
D
(MIN)
95
97
100
0
%
%
Duty Cycle
Total Standby Current
Start-up Current
Operating Supply Current
V
CC
Zener Voltage
Note:1.These parameters, although guaranteed ,are not 100% tested in production.
2. Parameters measured at trip point of latch with Vpin 2=0.
3. Gain defined as:
Vpin 1
Vpin 3
4. Adjust V
CC
above the start threshold before setting at 15V.
I
ST
0.12
11
34
0.3
17
mA
mA
V
I
CC(OPR)
Vpin 2=Vpin 3=0V
V
z
I
CC
=25mA
A=
; 0 Vpin3 0.8V
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| UC3842G | HIGH PERFORMANCE CURRENT MODE CONTROLLER |
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| UC3842G-D08-T | HIGH PERFORMANCE CURRENT MODE CONTROLLER |
| UC3842GL-D08-R | HIGH PERFORMANCE CURRENT MODE CONTROLLER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3842AD1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 0.5mA Current Mode RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| UC3842AD1013TR | 制造商:STMicroelectronics 功能描述: 制造商:STMicroelectronics 功能描述:1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| UC3842AD13TR | 制造商:STMicroelectronics 功能描述: 制造商:STMicroelectronics 功能描述:Electronic Component |
| UC3842AD8 | 功能描述:電流型 PWM 控制器 Current Mode 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 |
| UC3842AD8 | 制造商:UNITRODE 功能描述:PWM CONTROLLER SMD 3842 SOIC8 |
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