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Part Number: PUCC3801
Description: The PUCC3801 is a current-mode Pulse Width Modulated (PWM) controller containing all the control and p...
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PUCC3801
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DataSheet
General Description
PUCC3801 General Description
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.
PUCC3801 Maximum Ratings
|
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 |
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 components needed
·Internal slope compensation. No external ramp components needed
·Built-i·over-voltage and under-voltage detection
·High-speed over-current trip; 170 ns typical
·Over-voltage clamp o·supply voltage (VDD)
·Internal divider regulates VDD to 12 V. No external divider needed
·Leading edge blanking of the current sense signal
·Control frequency modulated over a narrow band to reduce Electromagnetic Interference (EMI)
·High output drive capability; 150 ns typical rise and fall time into 2 nF load
·Wide bandwidth (10 MHz) error amplifier with external compensatio·pi·and simple interface to optocoupler
·Accurate internal bandgap reference.
·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 under-voltage detection
·High-speed over-current trip; 170 ns typical
·Over-voltage clamp o·supply voltage (VDD)
·Internal divider regulates VDD to 12 V. No external divider needed
·Leading edge blanking of the current sense signal
·Control frequency modulated over a narrow band to reduce Electromagnetic Interference (EMI)
·High output drive capability; 150 ns typical rise and fall time into 2 nF load
·Wide bandwidth (10 MHz) error amplifier with external compensatio·pi·and simple interface to optocoupler
·Accurate internal bandgap reference.
PUCC3801 Typical Application
·Off-line switched mode power supplies
·Laptop computer mains adaptors
·Printer power supplies.
·Laptop computer mains adaptors
·Printer power supplies.
PUCC3801 Connection Diagram
PUCC3801
PDF/DataSheet Download
- Datasheet: PUCC3801
- File Size: 316325 KB
- Manufacturer: PHILIPS [Philips Semiconductors]
- Click here to Download
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- 195324 KB
- ·PUCC3801P
- PHILIPS [Philips Semiconductors]
- Current-mode PWM controller
- 316325 KB
- ·PUCC3801T
- PHILIPS [Philips Semiconductors]
- Current-mode PWM controller
- 316325 KB
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