http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf





UTC
UTC

UC3843A Datasheet Preview

UC3843A Datasheet

(UC3842A / UC3843A) CURRENT MODE PWM CONTROL CIRCUITS

No Preview Available !

UC3843A pdf
www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
UC3842A/3843A
LINEAR INTEGRATED CIRCUIT
CURRENT MODE PWM
CONTROL CIRCUITS
DESCRIPTION
The UTC UC3842A/3843A provide the necessary functions to
implement off-line or DC to DC fixed frequency current mode ,
controlled switching circuits with minimal external components.
SOP -8
FEATURES
*Low start up current ( Typical 0.12mA )
*Automatic feed forward compensation
*Pulse-by-Pulse current limiting
*Under-voltage lockout with hysteresis
*Double pulse Suppression
*High current totem pole output to drive MOSFET directly
*Internally trimmed band gap reference
*500kHz operation
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
UC3842A-D08-T
UC3842AL-D08-T
UC3842A-S08-R
UC3842AL-S08-R
UC3842A-S08-T
UC3842AL-S08-T
UC3843A-D08-T
UC3843AL-D08-T
UC3843A-S08-R
UC3843AL-S08-R
UC3843A-S08-T
UC3843AL-S08-T
Package
DIP-8
SOP-8
SOP-8
DIP-8
SOP-8
SOP-8
DIP-8
*Pb-free plating product number: UC3842AL
UC3843AL
Packing
Tube
Tape Reel
Tube
Tube
Tape Reel
Tube
UC3842AL-D08-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) T: Tube, R: Tape Reel
(2) D08: DIP-8, S08: SOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 9
QW-R103-002,D



UTC
UTC

UC3843A Datasheet Preview

UC3843A Datasheet

(UC3842A / UC3843A) CURRENT MODE PWM CONTROL CIRCUITS

No Preview Available !

UC3843A pdf
UC3842A/3843A
PIN CONFIGURATION
COMP 1
VFB 2
Current Sense 3
RT/CT 4
LINEAR INTEGRATED CIRCUIT
8 VREF
7 VCC
6 Output
5 GND
BLOCK DIAGRAM
VREF
8
Internal
Bias
VFB 2
COMP 1
CURRENT SENSE 3
RT/CT 4
1/2VREF
ERROR
AMPLIFIER
5V REF
S/R
VREF
Good
Logic
1/ 3VREF
U.V.L.O
CURRENT
SENSE
COMPARATOR
1V R
PWM
LATCH
S
OSCILLATOR
7 Vcc
5 GND
7 Vcc
6 OUTPUT
5 GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 9
QW-R103-002,D


Part Number UC3843A
Description (UC3842A / UC3843A) CURRENT MODE PWM CONTROL CIRCUITS
Maker UTC
Total Page 9 Pages
PDF Download
UC3843A pdf
Download PDF File
UC3843A pdf
View for Mobile



Buy Electronic Components




Related Datasheet

1 UC3843 Current Mode PWM Controller (Rev. C) Texas Instruments
Texas Instruments
UC3843 pdf
2 UC3843 (UC3842 - UC3845) CURRENTMODE PWM CONTROLLER STMicroelectronics
STMicroelectronics
UC3843 pdf
3 UC3843 (UC3842 - UC3845) SMPS Controller Fairchild Semiconductor
Fairchild Semiconductor
UC3843 pdf
4 UC3843 Fixed Frequency Current Mode PWM Controller ChipsWinner
ChipsWinner
UC3843 pdf
5 UC3843 SMPS Controller SYC
SYC
UC3843 pdf
6 UC3843A (UC3842A / UC3843A) HIGH PERFORMANCE CURRENT MODE CONTROLLERS Motorola
Motorola
UC3843A pdf
7 UC3843A (UC3842A / UC3843A) SMPS Controller Fairchild Semiconductor
Fairchild Semiconductor
UC3843A pdf
8 UC3843A (UC384xA) CURRENT MODE PWM CONTROLLER Microsemi Corporation
Microsemi Corporation
UC3843A pdf
9 UC3843A (UC3842A - UC3845A) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER ST Microelectronics
ST Microelectronics
UC3843A pdf






Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components