R2A20114BFP Datasheet, PDF (1/17 Pages) Renesas Technology Corp – Continuous Conduction Mode Interleaving PFC Control IC

Data Sheet
R2A20114BFP
R03DS0101EJ0100
Rev.1.00
Continuous Conduction Mode Interleaving PFC Control IC Nov. 8, 2016
Description
R2A20114BFP is a boost converter IC with PFC (Power Factor Correction). Based on R2A20114AFP, R2A20114BFP
has improved usability such as built-in PFC boost voltage control, current detecting amplifier with differential inputs,
independent and high-functional error output pin, timer reset of OFF latch, and partial switch for PFC.
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.
R2A20114BFP 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.
Functions
 Boost converter control with continuous conduction mode
 Interleaving control
 Brownout
 Phase drop
 External clock synchronization input
 External clock synchronization output
 Two modes of over voltage protection
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
 Dual over voltage protection circuits: FB and OVP2 terminals
 Feedback loop wire breaking/open detector
 Current balance control
 Phase 1 and Phase 2 independent over current protection
 Variable PFC output voltage
Features
<Maximum Ratings>
Supply voltage Vcc: 24V
Operating ambient temperature Ta-opr: -40 to 125℃
Junction temperature Tj: -40 to 150℃
<Electrical Characteristics>
VFB Feedback voltage VFB: 2.5V ± 1.5%
UVLO operating start voltage VH: 10.4V ± 0.7V
UVLO operation shutdown voltage VL: 8.9V ± 0.5V
UVLO hysteresis voltage Hysuv1: 1.5V ± 0.5V
<Package>
Pb-free LQPF-
R03DS0101EJ0100 Rev.1.00
Nov. 8, 2016
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