Features: ·Very low start-up supply current; 50 mA typical·Low operating supply current; 1.2 mA typical·Accurate, internally-trimmed, fixed frequency oscillator (100 kHz). No external timing components needed·Internal slope compensation. No external ramp components needed·Built-i·over-voltage and ...
PUCC3801: Features: ·Very low start-up supply current; 50 mA typical·Low operating supply current; 1.2 mA typical·Accurate, internally-trimmed, fixed frequency oscillator (100 kHz). No external timing compone...
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Symbol |
Parameter |
Conditions |
Min |
Max |
Unit |
VDD | supply voltage | IDD15 mA |
- |
15 |
V |
low impedance source |
- |
13 |
V | ||
VCOMP | voltage on COMP pin |
-0.3 |
VREG + 0.3 |
V | |
VFB | voltage on FB pin |
-0.3 |
VREG + 0.3 |
V | |
IDD | supply current into VDD pin |
- |
15 |
mA | |
IORM | repetitive peak output current |
- |
0.6 |
A | |
IREG | current out of REG pin |
- |
10 |
mA | |
ICOMP | current into COMP pin |
- |
1 |
mA | |
PTOT | total power dissipation | ||||
PUCC3801P |
- |
0.5 |
W | ||
PUCC3801T |
- |
0.3 |
W | ||
Tj | junction temperature |
0 |
105 |
||
TSTG | storage temperature | non-operating |
-60 |
+150 |
|
Tsp | solder point temperature | during soldering; t 10 s |
- |
300 |
The PUCC3801 is a current-mode Pulse Width Modulated (PWM) controller containing all the control and protection functions necessary to implement an off-line, flyback or forward converter with a minimum number of external components.