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HA16158P/FP
PFC & PWM Control IC
ADE-204-072 (Z) Rev.0 Aug. 2002 Description
The HA16158 is a powe...
www.DataSheet4U.com
HA16158P/FP
PFC & PWM Control IC
ADE-204-072 (Z) Rev.0 Aug. 2002 Description
The HA16158 is a power supply controller IC combining an AC-DC converter switching controller for power factor correction and an off-line power supply switching controller. The PFC (power factor correction) section employs average current mode PWM and the off-line power supply control section employs peak current mode PWM. The HA16158 allows the operating frequency to be varied with a single timing resistance, enabling it to be used for a variety of applications. The PFC operation can be turned on and off by an external control signal. Use of this on/off function makes it possible to disable PFC operation at a low line voltage, or to perform remote control operation from the transformer secondary side. The PWM controller includes a power-saving function that reduces the operating frequency to a maximum www.DataSheet4U.com of 1/64 in the standby state, greatly decreasing switching loss. The PFC section and PWM section are each provided with a soft start control pin, enabling a soft start time to be set easily.
Features
Supply voltage Vcc: 24 V Operating junction temperature Tjopr: –40°C to +125°C VREF output voltage VREF: 5.0 V ± 2% UVLO start threshold VH: 16.0 V ± 1.0 V UVLO shutdown threshold VL: 10.0 V ± 0.6 V PFC output maximum duty cycle Dmax-pfc: 95% typ. PWM output maximum duty cycle Dmax-pwm: 45% typ.
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