The AP2004 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip, mainly designs for power-supply regulator. All the functions include an on-chip 1.25V reference output, an error amplifier, an adjustable oscillator, a soft-start, UVLO, SCP circuitry, and a push-pull output circuit. Switching frequency is adjustable by trimming CT. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit operates normally.
|
|
|
- Backlight inverter- LCD Monitor- XDROM, XDSL Product- DC/DC converters in computers, etc.
|
- PWM Buck Control Circuitry- Operating voltage can be up to 27V- Under voltage Lockout (UVLO) Protection- Short Circuit Protection (SCP)- Soft-start circuit- Variable Oscillator Frequency -- 300Khz Max- 1.25V voltage reference Output- 8-pin PDIP and SOP packages
|
| Symbol |
Parameter |
Rating |
Unit |
| VCC |
Supply voltage |
28 |
V |
| VI |
Amplifier input voltage |
20 |
V |
| VO |
Collector output voltage |
VCC-1.0V |
V |
| ISOURCE |
Source current |
200 |
mA |
| ISINK |
Sink current |
200 |
mA |
| TOP |
Operating temperature range |
-20 to +85 |
oC |
| TST |
Storage temperature range |
-65 to +150 |
oC |
| TLEAD |
Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds |
260 |
oC |
Post a Buying Lead
Required Field 
