POWER FACTOR CORRECTOR

DESCRIPTION The L4981 I.C. provides the necessary features to achieve a very high power factor up to 0.99. Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line cur

文件：228.04 Kbytes 页数：17 Pages

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CCM PFC controller with high voltage startupv

Features Peak current mode CCM-operated 800 V high voltage startup with integrated input voltage sensing Active input filter capacitor discharge Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM) Extremely few external components Pro

文件：1.2952 Mbytes 页数：27 Pages

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丝印：L4985A；Package：SO-8；CCM PFC controller with high voltage startupv

Features Peak current mode CCM-operated 800 V high voltage startup with integrated input voltage sensing Active input filter capacitor discharge Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM) Extremely few external components Pro

文件：1.2952 Mbytes 页数：27 Pages

STMICROELECTRONICS

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丝印：L4985A；Package：SO-8；CCM PFC controller with high voltage startupv

Features Peak current mode CCM-operated 800 V high voltage startup with integrated input voltage sensing Active input filter capacitor discharge Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM) Extremely few external components Pro

文件：1.2952 Mbytes 页数：27 Pages

STMICROELECTRONICS

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丝印：L4985B；Package：SO-8；CCM PFC controller with high voltage startupv

Features Peak current mode CCM-operated 800 V high voltage startup with integrated input voltage sensing Active input filter capacitor discharge Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM) Extremely few external components Pro

文件：1.2952 Mbytes 页数：27 Pages

STMICROELECTRONICS

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丝印：L4985B；Package：SO-8；CCM PFC controller with high voltage startupv

Features Peak current mode CCM-operated 800 V high voltage startup with integrated input voltage sensing Active input filter capacitor discharge Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM) Extremely few external components Pro

文件：1.2952 Mbytes 页数：27 Pages

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VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG

DESCRIPTION The L4987 is a very low drop regulator available in PPAK. The very low drop-voltage (0.5V Max at 200 mA) and the very low quiescent current make it particularly suitable for low noise, low power applications, and in battey powered systems. The input dump protection up to 40V makes it

文件：94.56 Kbytes 页数：11 Pages

STMICROELECTRONICS

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VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG

DESCRIPTION The L4987 is a very low drop regulator available in PPAK. The very low drop-voltage (0.5V Max at 200 mA) and the very low quiescent current make it particularly suitable for low noise, low power applications, and in battey powered systems. The input dump protection up to 40V makes it

文件：94.56 Kbytes 页数：11 Pages

STMICROELECTRONICS

意法半导体

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG

DESCRIPTION The L4987 is a very low drop regulator available in PPAK. The very low drop-voltage (0.5V Max at 200 mA) and the very low quiescent current make it particularly suitable for low noise, low power applications, and in battey powered systems. The input dump protection up to 40V makes it

文件：94.56 Kbytes 页数：11 Pages

STMICROELECTRONICS

意法半导体

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG

DESCRIPTION The L4987 is a very low drop regulator available in PPAK. The very low drop-voltage (0.5V Max at 200 mA) and the very low quiescent current make it particularly suitable for low noise, low power applications, and in battey powered systems. The input dump protection up to 40V makes it

文件：94.56 Kbytes 页数：11 Pages

STMICROELECTRONICS

意法半导体