SA3843
CURRENT MODE PWM CONTROLLER
The SA3843 provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N channel MOSFETs, is low in the off state.
Main feature
- Optimized for off-line and DC to DC converts
- Low start up current(<0.5mA)
- Automatic feed forward compensation
- Pulse-by-Pulse current limiting
- Enhanced load response characteristics
- Under-voltage lockout with hysteresis
- Double pulse Suppression
- High current totem pole output
- Internally trimmed bandgap reference
- 500kHz operation
Ordering Information
Product Name |
Package form |
Marking |
Hazardous Substance Control |
Packing Type |
Remarks |
SA3843SA |
SOP-8-225-1.27 |
SA3843 |
Halogen free |
Tube |
|
SA3843SATR |
SOP-8-225-1.27 |
SA3843 |
Halogen free |
Tape&Reel |
|
Documents
title |
Types of |
Size (KB) |
date |
Download the latest English version |
SA3843 Datasheet |
|
0 |
1970-01-01 |
SA3843 Datasheet |