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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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LCS700-708 Datenblatt(PDF) 1 Page - Power Integrations, Inc. |
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LCS700-708 Datenblatt(HTML) 1 Page - Power Integrations, Inc. |
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1 / 26 page  LCS700-708 HiperLCS™ Family www.powerint.com June 2011 Integrated LLC Controller, High-Voltage Power MOSFETs and Drivers Product Highlights Features • LLC half-bridge power stage incorporating controller, high and low-side gate drives, and high-voltage power MOSFETs • Eliminates up to 30 external components • High maximum operating frequency of 1 MHz • Nominal steady-state operation up to 500 kHz • Dramatically reduces magnetics size and allows use of SMD ceramic output capacitors • Precise duty symmetry balances output rectifier current, improving efficiency • 50% ±0.3% typical at 300 kHz • Comprehensive fault handling and current limiting • Programmable brown-in/out thresholds and hysteresis • Undervoltage (UV) and overvoltage (OV) protection • Programmable over-current protection (OCP) • Short-circuit protection (SCP) • Over-temperature protection (OTP) • Programmable dead-time for optimized design • Programmable burst mode maintains regulation at no-load and improves light load efficiency • Programmable soft-start time and delay before soft-start • Accurate programmable minimum and maximum frequency limits • Single package designed for high-power and high-frequency • Reduces assembly cost and reduces PCB layout loop areas • Simple single clip attachment to heat sink • Exposed thermal pad connected to ground potential – no insulators required between package and heat sink • Staggered pin arrangement for simple PC board routing and high-voltage creepage requirements • Paired with HiperPFS PFC product gives complete, high efficiency, low part count PSU solutions Applications • High-efficiency power supplies (80 PLUS Silver, Gold and Platinum) • LCD TV power supplies • LED street and area lighting • Printer power supplies • Audio amplifier Figure 1. Typical Application Circuit – LCD TV and PC Main Power Supply. Description The HiperLCS is an integrated LLC power stage incorporating a multi-function controller, high-side and low-side gate drivers, plus two power MOSFETs in a half-bridge configuration. Figure 1 shows a simplified schematic of a HiperLCS based power stage where the LLC resonant inductor is integrated into the transformer. The variable frequency controller provides high efficiency by switching the power MOSFETs at zero voltage (ZVS), eliminating switching losses. Output Power Table Product Maximum Practical Power1 LCS700HG 110 W LCS701HG 170 W LCS702HG 220 W LCS703HG 275 W LCS705HG 350 W LCS708HG 440 W Table 1. Output Power Table. Notes: 1. Maximum practical power is the power the part can deliver when properly mounted to a heat sink and a maximum heat sink temperature of 90 °C. LLC Feedback Circuit HiperLCS HB VREF DT/BF R FMAX R BURST IS FB VCC VCCH HV DC Input OV/UV G S1/S2 D PI-6159-060211 Standby Supply CONTROL B+ +V RTN B- |
Ähnliche Teilenummer - LCS700-708 |
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Ähnliche Beschreibung - LCS700-708 |
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