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参数资料
| 型号： | SG3842M |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 稳压器 |
| 英文描述： | CURRENT MODE PWM CONTROLLER |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封装： | ROHS COMPLIANT, PLASTIC, DIP-8 |
| 文件页数： | 1/14页 |
| 文件大小： | 224K |
| 代理商： | SG3842M |
Copyright 2000
Rev. 1.6 4/00
F O R F U R T H E R I N F O R M AT I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841
1
C
U R R E N T
M
O D E
PWM C
O N T R O L L E R
P
R O D U C T I O N
D
A T A
S
H E E T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O V A T I O N
SG1842/SG1843 Series
LIN D
OC
#:
1842
D E S C R I P T I O N
K E Y F E AT U R E S
I
OPTIMIZED FOR OFF-LINE CONTROL
I
LOW START-UP CURRENT (<1mA)
I
AUTOMATIC FEED FORWARD
COMPENSATION
I
TRIMMED OSCILLATOR DISCHARGE
CURRENT
I
PULSE-BY-PULSE CURRENT LIMITING
I
ENHANCED LOAD RESPONSE
CHARACTERISTICS
I
UNDER-VOLTAGE LOCKOUT WITH 6V
HYSTERESIS (SG1842 only)
I
DOUBLE-PULSE SUPPRESSION
I
HIGH-CURRENT TOTEM-POLE OUTPUT
(1AMP PEAK)
I
INTERNALLY TRIMMED BANDGAP
REFERENCE
I
500KHZ OPERATION
I
UNDERVOLTAGE LOCKOUT
SG1842 - 16 volts
SG1843 - 8.4 volts
I
LOW SHOOT-THROUGH CURRENT <75mA
OVER TEMPERATURE
The SG1842/43 family of control IC's
provides all the necessary features to
implement off-line fixed frequency,
current-mode switching power supplies
with a minimum number of external
components. Current-mode
architecture demonstrates improved
line regulation, improved load
regulation, pulse-by-pulse current
limiting and inherent protection of the
power supply output switch.
The bandgap reference is trimmed to
±1% over temperature. Oscillator
discharge current is trimmed to less
than ±10%. The SG1842/43 has under-
P R O D U C T H I G H L I G H T
PA C K A G E O R D E R I N F O R M AT I O N
Plastic SOIC
8-pin
DM
14-pin
D
T
A
(°C)
0 to 70
SG3842M
SG3842N
SG3842DM
SG3842D
SG3842Y
SG3842J
—
—
SG3843M
SG3843N
SG3843DM
SG3843D
SG3843Y
SG3843J
—
—
-25 to 85
SG2842M
SG2842N
SG2842DM
SG2842D
SG2842Y
SG2842J
—
—
SG2843M
SG2843N
SG2843DM
SG2843D
SG2843Y
SG2843J
—
—
-55 to 125
—
—
—
—
SG1842Y
SG1842J
—
SG1842L
—
—
—
—
SG1843Y
SG1843J
—
SG1843L
MIL-STD/883
—
—
—
—
SG1842Y/883B SG1842J/883B
—
SG1842L/883B
—
—
—
—
SG1843Y/883B SG1843J/883B
—
SG1843L/883B
DESC
—
—
—
—
SG1842Y/DESC SG1842J/DESC
SG1842F/DESC
SG1842L/DESC
—
—
SG1843Y/DESC SG1843J/DESC
SG1843F/DESC
SG1843L/DESC
T
YPICAL
A
PPLICATION
OF
SG3842 I
N
A F
LYBACK
C
ONVERTER
HIGH RELIABILITY FEATURES
I
AVAILABLE TO MIL-STD-883B AND DESC
SMD
I
SCHEDULED FOR MIL-M38510 QPL LISTING
I
RADIATION DATA AVAILABLE
I
LINFINITY LEVEL "S" PROCESSING AVAILABLE
Note: All surface-mount packages are available in Tape & Reel.
voltage lockout, current limiting
circuitry and start-up current of less
than 1mA.
The totem-pole output is optimized
to drive the gate of a power MOSFET.
The output is low in the off state to
provide direct interface to an N
channel device.
The SG1842/43 is specified for
operation over the full military ambient
temperature range of -55°C to 125°C.
The SG2842/43 is specified for the
industrial range of -25°C to 85°C, and
the SG3842/43 is designed for the
commercial range of 0°C to 70°C.
Plastic DIP
8-pin
M
Plastic DIP
14-pin
N
Plastic SOIC
Ceramic DIP
8-pin
Y
Ceramic DIP
14-pin
J
Cer. Flatpack
10-pin
F
Ceramic LCC
20-pin
L
AC
INPUT
SG3842
R
ST
I
ST
V
CC
相关PDF资料 |
PDF描述 |
|---|---|
| SG3842N | CURRENT MODE PWM CONTROLLER |
| SG3842Y | CURRENT MODE PWM CONTROLLER |
| SG3843D | CURRENT MODE PWM CONTROLLER |
| SG3843DM | CURRENT MODE PWM CONTROLLER |
| SG3843J | CURRENT MODE PWM CONTROLLER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SG3842N | 制造商:Microsemi Corporation 功能描述:SG3842N - Bulk |
| SG3842Y | 制造商:Microsemi Corporation 功能描述:SG3842Y - Bulk |
| SG3843D | 制造商:Microsemi Corporation 功能描述:SG3843D - Bulk |
| SG3843DM | 功能描述:IC REG CTRLR FLYBK ISO PWM 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| SG3843G | 制造商:未知厂家 制造商全称:未知厂家 功能描述:BiCMOS Green-Mode PWM Controllers |
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