HA16141P Datasheet | Hitachi Semiconductor

Description The HA16141P/FP and the HA16142P/FP are power supply controller ICs bining an AC-DC converter switching controllers for power factor correction and off-line power supply switching controllers. PFC (Power factor correction) section employs average current mode PWM and off-line power supply control section employs peak current mode PWM. The HA16142P/FP is the change version of HA16141P/FP’s PWM maximum on duty cycle. The PFC operation can be turned on and off by 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 PFC power supply boosted output voltage is not only fed to an error amplifier input signal but also fed to as the boost voltage monitor circuit. PG signal is put out if the boost voltage is out-of-spec. The PWM controller, which begins operation at the same time as release of the IC’s UVLO (under-voltage lockout) is suitable for auxiliary power supply use in a multi-output power supply system. Features - Synchronized PFC and PWM timing - Self oscillation with fixed frequency PFC : 100 k Hz (±15 %) PWM : 200 k Hz (±15 %) - PFC function on/off control - PFC boosted output voltage monitor - High-output current gate drivers PFC driver peak current : ±1.5 A typ. PWM driver peak current : ±1.0 A typ. - PWM maximum on duty cycle 72% min (HA16141P/FP) 49.5% max (HA16142P/FP) HA16141P/FP, HA16142P/FP Pin Arrangement GND PWM-OUT PFC-OUT VCC VREF 1 2 3 4 5 6 7 8 (Top view) 16 15 14 13 12 11 10 9 PWM-CS PWM-EO O.C PFC-EO TIM PFC-FB IAC PFC-ON CAO PFC-CS Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Symbol GND PWM-OUT PFC-OUT VCC VREF PG CAO PFC-CS PFC-ON IAC PFC-FB TIM PFC-EO O.C PWM-EO Function Ground Power MOS FET driver output (PWM control) Power MOS FET driver output (PFC control) Supply voltage Reference voltage Power Good signal output (open-drain output) Average current control error...