參數(shù)資料
型號(hào): SG3843Y
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: CURRENT MODE PWM CONTROLLER
中文描述: 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8
封裝: HERMETIC SEALED, CERAMIC, DIP-8
文件頁數(shù): 4/14頁
文件大小: 224K
代理商: SG3843Y
C
U R R E N T
-M
O D E
PWM C
O N T R O L L E R
SG1842/SG1843 Series
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
Copyright 2000
Rev. 1.6 4/00
4
P
R O D U C T I O N
D
A T A
S
H E E T
E L E C T R I C A L C H A R A C T E R I S T I C S
(Cont'd.)
Under-Voltage Lockout Section
Start Threshold
Parameter
Symbol
Test Conditions
1842
1843
1842
1843
Min. Operation Voltage After Turn-On
PWM Section
Maximum Duty Cycle
Minimum Duty Cycle
Power Consumption Section
Start-Up Current
Operating Supply Current
V
CC
Zener Voltage
V
FB
= V
ISENSE
= 0V
I
CC
= 25mA
Notes: 4. These parameters, although guaranteed, are not 100% tested in
production.
5. Parameter measured at trip point of latch with V
VFB
= 0.
SG3842/43
Units
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
SG2842/43
15
7.8
9
7.0
16
8.4
10
7.6
17
9.0
11
8.3
15
7.8
9
7.0
16
8.4
10
7.6
17
9.0
11
8.2
14.5
7.8
8.5
7.0
16
8.4
10
7.6
17.5
9.0
11.5
8.2
V
V
V
V
SG1842/43
93
95
100
0
90
95
100
0
90
95
100
0
%
%
0.5
11
34
1
0.5
11
34
V
COMP
V
ISENSE
1
0.5
11
34
1
mA
mA
V
17
17
17
6. Gain defined as: A =
; 0
V
ISENSE
0.8V.
7. Adjust V
CC
above the start threshold before setting at 15V.
Output Low Level
I
SINK
= 20mA
I
SINK
= 200mA
I
SOURCE
= 20mA
I
SOURCE
= 200mA
T
J
= 25°C, C
L
= 1nF
T
J
= 25°C, C
L
= 1nF
Output High Level
Rise Time
Fall Time
Current Sense Section
Gain (Notes 5 & 6)
Maximum Input Signal (Note 5)
Power Supply Rejection Ratio (Note 5)
Input Bias Current
Delay to Output (Note 4)
Output Section
V
COMP
= 5V
12
V
CC
25V
PSRR
2.85
0.9
3
1
3.15 2.85
1.1
3
1
3.15 2.85
1.1
3
1
3.15
1.1
V/V
V
dB
μA
ns
0.9
0.9
70
-2
150
70
-2
150
70
-2
150
-10
300
-10
300
-10
300
0.1
1.5
13.5
13.5
50
50
0.4
2.2
0.1
1.5
13.5
13.5
50
50
0.4
2.2
0.1
1.5
13.5
13.5
50
50
0.4
2.2
V
V
V
V
ns
ns
13
12
13
12
13
12
150
150
150
150
150
150
相關(guān)PDF資料
PDF描述
SG2843D CURRENT MODE PWM CONTROLLER
SG2843DM CURRENT MODE PWM CONTROLLER
SG2843J CURRENT MODE PWM CONTROLLER
SG2843M CURRENT MODE PWM CONTROLLER
SG2843N CURRENT MODE PWM CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SG3844D 制造商:Microsemi Corporation 功能描述:SG3844D - Bulk
SG3844DM 功能描述:IC REG CTRLR ISO PWM CM 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
SG3844J 制造商:Microsemi Corporation 功能描述:SG3844J - Bulk
SG3844M 功能描述:IC REG CTRLR ISO PWM CM 8-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
SG3844N 制造商:Microsemi Corporation 功能描述:SG3844N - Bulk