AP2001

Features:

- Dual PWM Control Circuitry
- Operating voltage can be up to 50V
- Adjustable Dead Time Control (DTC)
- Under voltage Lockout (UVLO) Protection
- Short Circuit Protection (SCP)
- Variable Oscillator Frequency...... 500Khz Max
- 2.5V voltage reference Output
- 16-pin PDIP and SOP packages




Application

- Backlight inverter
- DC/DC converts in computers, etc.




Specifications

Symbol	Parameter	Rating	Unit
VCC	Supply voltage	40	V
VI	Amplifier input voltage	20	V
VO	Collector output voltage	40	V
Io	Collector output current	21	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

Part Number	AP2001
Type	Buck, Boost, Inverting
Min and Max Input Voltage (V)	3.6 ~ 40
Output Voltage (V)	2.5 to 40ADJ
Frequency (Hz)	500KADJ

Description

The AP2001 integrates Pulse-width-Modulation (PWM) control circuit into a single chip, mainly designs for power-supply regulator. All the functions included an on-chip 2.5V reference output, two error amplifiers, an adjustable oscillator, two dead-time comparators, UVLO, SCP, DTC circuitry,and dual common-emitter(CE) output transistor circuit.

Recommend the output CE transistors as pre-driver for Driving externally. AP2001 can provide from 0% to 100%. Switching frequency can be adjustable by trimming RT and CT. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operational normally.