Power Supply for Air Conditioner
Overview
The R2A20114B continuous conduction mode PFC IC from Renesas provides interleaved operation at high power levels along with inexpensive anti-noise measures, enabling manufacturers to design low-cost air conditioner models that combine a high power factor and high efficiency.
System Block Diagram
Recommended Products
Full-Switching PFC IC
| PFC IC | Part no. | Mode | VCC Maximum (V) | Tj operation | Drive peak current |
|---|---|---|---|---|---|
| R2A20114B | Continuous interleave | 24 V | -40 to +150 ℃ | -1000 mA (source) / 1000 D1mA (sink) |
|
| R2A20112A | Critical interleave | 24 V | -40 to +150 ℃ | -1000 mA (source) / 1000 D1mA (sink) |
Photocoupler Lineup
| Block | Semiconductor device | Recommended products | Features, etc. |
|---|---|---|---|
| Indoor-outdoor unit signal I/F |
General-purpose photocouplers |
PS23xx Series PS27xx Series PS28xx Series |
High isolation voltage (5kVr.m.s.), 4p-LSOP, Ta=115°C High isolation voltage (3.75kVr.m.s.), 4p-SOP, Ta=110°C High isolation voltage (2.5kVr.m.s.), 4p-SSOP, Ta=110°C |
| High-speed photocouplers |
PS93xx Series (SDIP) PS95xx Series (8-pin DIP) |
Digital output ～15Mbps Low supply current |
|
| For TRIAC Control | General-Purpose Photocouplers |
PS23xx Series PS27xx Series PS28xx Series |
High insulation High isolation voltage (5kVr.m.s.), 4p-LSOP, Ta=115°C High isolation voltage (3.75kVr.m.s.), 4p-SOP, Ta=110°C High isolation voltage (2.5kVr.m.s.), 4p-SSOP, Ta=110°C |
| Inverter circuit | Photocouplers for IGBT drive |
PS93xx Series (SDIP) PS95xx Series (8-pin DIP) |
High isolation voltage (5kV～7.5kVr.m.s.) 0.6～2.5A output High CMR (CMR≧50kV/μs) |
MCU Lineup for Outdoor Unit Control
| Series | CPU | Max. operating frequency |
Memory | Inverter timer |
A/D converter | Serial | Package | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flash (KB) |
Data flash (KB) |
RAM (KB) |
12-bit | 10-bit | SCI | I 2 C | UART | SPI | |||||
| RX62T | RX | 100 | 64～256 | 32/8 | 16/8 | 1～3 | 8ch | 12ch | 3 | 1 | 3 | 1 | LQFP112 LQFP100 LQFP80 LQFP64 |
| RX63T | RX | 100 | 32～512 | 32/8 | 48/8 | 1～3 | 8/6ch | 20/12ch | 5/3 | 7/1 | 5/3 | 7/4 | LQFP144 LQFP120 LQFP112 LQFP100 LQFP64 LQFP48 |
List of Photocouplers for Power Supplies
DC Input/Single-Transistor Output Type (Products Conforming to Overseas Various Safety Standards)
| Package | Part no. | Rating | Characteristics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| BV @1 minute (kV r.m.s) |
VCEO (V) |
IC (mA) |
CTR (Current transfer ratio) | Safty standard (Overseas safety standards) |
||||||
| Rank | Min. (%) |
Max. (%) |
FI (mA) |
VCE (V) |
||||||
| 4-pin-LSOP | PS2381-1 | 5 | 80 | 50 | W | 130 | 260 | 5 | 5 | UL, CSA, SEMKO CQC VDE (option) |
| L | 100 | 300 | 5 | 5 | ||||||
| M | 50 | 150 | 5 | 5 | ||||||
| N | 50 | 400 | 5 | 5 | ||||||
| 4-pin-SOP | PS2701A-1 | 3.75 | 70 | 30 | P | 150 | 300 | 5 | 5 | UL, CSA, VDE (option) |
| L | 100 | 300 | 5 | 5 | ||||||
| M | 50 | 150 | 5 | 5 | ||||||
| N | 50 | 300 | 5 | 5 | ||||||
| 4-pin-SOP | PS2761B-1 | 3.75 | 70 | 40 | K | 200 | 400 | 5 | 5 | UL, CSA, BSI SEMKO, NEMKO DEMKO, FIMKO CQC, VDE (option) |
| L | 100 | 300 | 5 | 5 | ||||||
| M | 50 | 150 | 5 | 5 | ||||||
| N | 50 | 400 | 5 | 5 | ||||||
| 4-pin-SSOP | PS2801C-1 | 2.5 | 80 | 30 | P | 150 | 300 | 5 | 5 | UL, CSA, VDE (option) |
| L | 100 | 300 | 5 | 5 | ||||||
| M | 100 | 400 | 5 | 5 | ||||||
| N | 50 | 400 | 5 | 5 | ||||||
| 4-pin-SSOP | PS2861B-1 | 3.75 | 70 | 50 | L | 100 | 300 | 5 | 5 | UL, CSA, BSI SEMKO, CQC VDE (option) |
| M | 50 | 150 | 5 | 5 | ||||||
| N | 50 | 300 | 5 | 5 | ||||||
Others
| Block | Semiconductor device | Recommended products | Features, etc. |
|---|---|---|---|
| Outdoor unit | Shunt regulator | μPC1093,μPC1943 /1944 | Optimal for output voltage detection of outdoor unit power supply |
| PFC (IC) | R2A20114B | Continuous conduction mode interleaving | |
| R2A20112A | Critical conduction mode interleaving | ||
| MCU Peripherals | Sensor signal amplifier CMOS op-amp |
READ2302GSP | Full range Input/output , High slew rate |
| μPC4742, μPC4744 | High slew rate |
Related Application Notes/Sample Code
Related Boards
| Name | Part No. |
|---|---|
| R2A20114B evaluation board * | - |
| R2A20112A evaluation board * | - |
*: Please contact your sales representative or contact us directly.