Features: *Low external part count.*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 referen...
3843A: Features: *Low external part count.*Low start up current ( Typical 0.12mA )*Automatic feed forward compensation*Pulse-by-Pulse current limiting*Under-voltage lockout with hysteresis*Double pulse Sup...
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PARAMETER |
SYMBOL |
VALUE |
UNIT |
Supply Voltage(Low Impedance Source) |
VCC |
30 |
V |
Supply Voltage(Icc<30mA) |
VCC |
Self Limiting |
V |
Output Current ( Peak ) |
Io |
+-1 |
A |
Output Energy(capacity Load) |
5 |
J | |
Analog Inputs(pin 2,3) |
VI(ANA) |
-0.3 ~ +6.3 |
V |
Error Amplifier Output Sink Current |
ISINK(EA) |
10 |
mA |
Power Dissipation |
PD DIP-8 |
at Tamb<=25°C 1.0 |
W |
SOP-8 |
at Tamb<=25°C 0.5 |
W | |
Lead Temperature( Soldering 10 Sec ) |
Tlead |
300 |
°C |
The @vic AV3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode , controlled switching circuits with a minimal external part count