BCD Semiconductor Manufacturing Limited AP3700A
The AP3700/A is a green-mode pulse width modulation (PWM) controller. It is specially designed for low power applications such as off-line battery chargers, where the needs for low standby power, space saving and low cost are all required. With a current limit capability of 460mA for AP3700 and 500mA for AP3700A, the AP3700/A can directly drive the emitter of high voltage NPN transistor.| Part No. | AP3700A |
|---|---|
| Datasheet | AP3700A Download |
| Manufacturer |  BCD Semiconductor Manufacturing Limited |
| Description | LOW POWER PWM CONTROLLER |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
AP3700/A In a battery charger rated 5V/1A, the maximum standby power is only 0.18W. In normal operation, the AP3700/A switches on and off at a fixed switching frequency of 60 kHz. When output power falls below a given level, the IC enters skip cycle mode to reduce power consumption. The AP3700/A also features under-voltage lockout, over-current and short circuit protections.● Current Mode Control with Skip Cycle Capability
● Lower Operating Current: 0.45mA
● Fixed Switching Frequency: 60 kHz
● Frequency Dithering for Low EMI: ±2.5kHz
● Under-Voltage Lockout Protection
● Over-Current Protection
● Internal Short Circuit Protection
● Higher Output Voltage at OUT Terminal
● Low Total Cost Solution
APPLICATIONS
● Battery Chargers● Off-Line Power Supplies The AP3700/A is available in TO-92 package. Mar. 2008 Rev. 1. 4 TO-92 (Bulk Packing) TO-92 (Ammo Packing) Figure 1. Package Types of AP3700/A BCD Semiconductor Manufacturing Limited 1 Data Sheet LOW POWER PWM CONTROLLER FOR OFF-LINE BATTERY CHARGER Pin Configuration AP3700/A Z Package (TO-92) 3 OUT 2 GND 1 VCC Figure 2.
