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FP-20DAV Folha de dados(PDF) 1 Page - Renesas Technology Corp

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Descrição Electrónicos  Continuous Conduction Mode Interleaving PFC Control IC
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
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R03DS0008EJ0301 Rev.3.01
Page 1 of 11
Jan 08, 2016
Data Sheet
R2A20104/114 Series
Continuous Conduction Mode Interleaving
PFC Control IC
Description
R2A20104/114 series is a boost converter control IC with PFC (Power Factor Correction). Employing continuous
conduction mode interleaving PFC, it performs higher efficiency and lower switching noise even for high power use.
The control of continuous conduction mode is carried out by detecting the current in power MOSFET. The R2A20114
series supports two types of current detection methods; current detection by current transformers (R2A20104SP/FP),
and that by shunt resisters (R2A20114SP/FP). So that, it can be applicable for a variety of applications. Interleaving
control of the boost converters, namely, producing 180 degrees phase shift between the output signals (GD1,2) driving
the boost converters, enables the system to perform high conversion efficiency and low switching noises and, at the
same time, to reduces ripple currents in input and output current and then this allows use of smaller components such as
boost inductors, input filters and output capacitors. R2A20114 series integrates a various kinds of protection circuits,
such as the detection circuit of breaking of wire in feedback loop, two modes of over voltage protection circuits, over
current protection circuit and error output circuit (*1), which improve the reliability of the power supply system and
reduce the number of component parts on the system.
Features
• Maximum Ratings
⎯ Supply voltage Vcc: 24 V
⎯ Junction temperature Tj: from –40 to +150 degrees centigrade
• Electrical characteristics
⎯ VFB feedback voltage VREF: 2.5 V ± 1.5%
⎯ UVLO (Undervoltage Lockout) operation start voltage VH: 10.4 V ± 0.7 V
⎯ UVLO operation shutdown voltage VL: 8.9 V ± 0.5 V
⎯ UVLO hysteresis voltage Hysuvl : 1.5 V ± 0.5 V
• Functions
⎯ Boost converter control with continuous conduction mode
⎯ Interleaving control
⎯ Frequency modulation (*2)
⎯ Brownout
⎯ Phase drop (*1)
⎯ External clock synchronization input
⎯ External clock synchronization output (*1)
⎯ Two modes of over voltage protections
Mode 1: Dynamic OVP preventing over voltage after sudden variation of load.
Mode 2: Static OVP preventing over voltage in the period of normal operation.
⎯ Feedback loop wire breaking/open detector
⎯ Dual over voltage protection circuits (*1): FB and OVP2 terminals
⎯ Current balance control
⎯ Phase 1 and Phase 2 independent over current protection
⎯ Package line-up
Pb-free LQFP-40 (R2A20104FP, R2A20114FP)
Pb-free SOP-20 (R2A20104SP, R2A20114SP)
Notes: *1 Supported only by R2A20104FP and R2A20114FP
*2 Frequency modulation periods (dfm) of R2A20104SP and R2A20114SP are fixed.
R03DS0008EJ0301
Rev.3.01
Jan 08, 2016


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