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參數(shù)資料
| 型號： | SG3843GADZ |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | BiCMOS Green-Mode PWM Controllers |
| 中文描述： | BiCMOS工藝綠色模式PWM控制器 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大?。?/td> | 394K |
| 代理商： | SG3843GADZ |
Product Specification
BiCMOS Green-Mode PWM Controllers
SG3842G/ SG3843G
System General Corp.
Version 1.4 ( IRO33.0007.B3)
- 4 -
www.sg.com.tw
Jun.28,2004
OPERATING CONDITIONS
Symbol
Vcc
C
T
R
T
f
OSC
T
a
Parameter
Min.
Max.
Unit
Supply voltage
Oscillation timing capacitor
Oscillation timing resistor
Oscillation frequency
Operating ambient temperature
-
0.47
2.0
10
-40
20
10
100
500
105
V
nF
k
kHz
°C
ELECTRICAL CHARACTERISTICS
Reference Voltage Section
Symbol
Parameter
Vref
Reference output voltage
Line
Line regulation
Load
Load current regulation
Vtc
Temperature stability
Ios
Short-circuit output current
Vref
Total output variation
Vn
Output noise voltage
S
Long term stability
Test Condition
Ta=25°C, Io=1mA
Vcc=10 to 20V
Io=1mA to 20mA
-
-
Line, Load, Temperature
f=10Hz to 10kHz , Ta=25°C
Ta=125°C for 1000 hours
Min.
4.75
-
-
-
-30
4.75
-
-
Typ.
5.0
2
20
0.5
-85
5.0
50
5
Max.
5.25
20
50
-
-180
5.25
-
25
Unit
V
mV
mV
mV/°C
mA
V
uV
mV
Oscillator Section
(VFB=0V, SENSE=0V)
Symbol
Parameter
Test Condition
SG3842G, SG3843G
SG3842G2
Vsense=0V
SG3842G
SG3842G2, SG3843G
SG3842G
SG3842G2, SG3843G
Vcc=10 to 20V
Ta=-40 to 85°C
Ta=25°C
Min.
49
49
8
-
-
7
Typ.
52
52
12
2.60
2.00
1.40
1.30
0.2
0.02
9
Max.
55
54
16
1
-
12
Unit
kHz
kHz
kHz
V
V
V
V
%
%/°C
mA
F
OSC
Oscillator frequency
F
OSC-G
Green-mode frequency (note 1)
V
comp,H
Comp Voltage that initiates Green-mode
V
comp,L
Comp Voltage that shuts down PWM
fdv
fdt
I
DISCHG
Note 1: F
OSC-G
is the last PWM frequency before completely turned off @ Vcc=15V
Frequency change with Vcc
Frequency change with temp.
Discharge current
Error Amplifier Section
Symbol
Parameter
V
FB
Input voltage
Iib
Input bias current
Avol
Open-loop voltage gain
BW
Unity gain bandwidth
PSRR
Power supply rejection ratio
Isource
Output source current
Isink
Output sink current
V
H COMP
Output voltage
V
L COMP
Output voltage
Test Condition
Comp=2.5V
-
-
-
-
FB=2.3V,COMP=0V
FB=2.7V,COMP=1V
FB=2.3V, R
L
=15K to GND
FB=2.7V, R
L
=15K to VREF
Min.
2.45
-
45
0.7
50
-0.8
2
6
-
Typ.
2.5
-
55
1.2
-
-1.8
6.5
6.6
-
Max.
2.55
0.1
-
-
-
-3
-
-
700
Unit
V
uA
dB
MHz
dB
mA
mA
V
mV
Current Sense Section
Symbol
Parameter
AV
Current sense input voltage gain (n)
Test Condition
SG3842G
Min.
4.60
Typ.
5.00
Max.
5.40
Unit
V/V
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| SG3843G | BiCMOS Green-Mode PWM Controllers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG3843GAS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BiCMOS Green-Mode PWM Controllers |
| SG3843GASZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BiCMOS Green-Mode PWM Controllers |
| SG3843J | 制造商:Microsemi Corporation 功能描述:SG3843J - Bulk |
| SG3843M | 功能描述:IC REG CTRLR FLYBK ISO PWM 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:- 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) |
| SG3843N | 制造商:Microsemi Corporation 功能描述:SG3843N - Bulk |
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