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AP3700 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AP3700 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
1 / 10 page LOW POWER PWM CONTROLLER FOR OFF-LINE BATTERY CHARGER AP3700 Data Sheet 1 Jan. 2007 Rev. 1. 1 BCD Semiconductor Manufacturing Limited General Description The AP3700 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. In a battery charger rated 5V/1A, the maximum standby power is only 0.18Watt. In normal operation, the AP3700 switches on and off at a fixed switching frequency of 60 kHz. With a current limit capability of 420mA, the AP3700 can directly drive the emitter of high voltage NPN transistor or the source of MOSFET. When output power falls below a given level, the IC enters skip cycle mode to reduce power consumption. The AP3700 also features under-voltage lockout, over- current and short circuit protections. The AP3700 is available in TO-92 package. Features · Current Mode Control with Skip Cycle Capability · Lower Operating Current: 0.45mA · Fixed Switching Frequency: 60 kHz · Frequency Dither for Low EMI: ±2.5kHz · Under-Voltage Lockout Protection · Over-Current Protection · Internal Short Circuit Protection · Higher Output Breakdown Voltage · Lower Total Cost Solution Applications · Battery Chargers · Off-Line Power Supplies Figure 1. Package Types of AP3700 TO-92 |
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Similar Description - AP3700 |
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