新闻发布
新产品：R1526 系列，300mA，最大输入电压42V 电压稳压器，高抗干扰性，适合车载和工业用途
2020年11月17日
理光微电子株式会社
Ricoh Electronic Devices Co., Ltd. has launched the R1526 series, a new voltage regulator with high input voltage suitable for use in automotive and industrial applications.
As automobiles are equipped with more communication modules such as V2X and millimeter-wave radars than ever, noise immunity specifications of electronic equipment are getting more important and EMC testing standards stricter. To meet these market requirements, we provide the R1526 series which adopts the same noise immunity technology as the R1525 series and the R1540 series. The new product with patent-pending immunity enhancing technology will contribute to maintaining a stable output voltage and preventing malfunctions of your system.
The R1526 series has a wide input voltage range from 3.5 V to 42 V with a maximum rating of 50 V, and therefore can be powered directly from an automotive battery or an industrial power supply. It can output a current up to 300 mA, and has as high an output voltage accuracy as ±0.6%. Also, the new voltage regulator achieves fast transient response despite the low supply current of 32 µA. These features enable the new regulator to be used in automotive and industrial systems which require countermeasures against noise, including power supplies for sensors, communication modules and interior light.
The R1526 adopts HSOP-8E package to prevent short between adjacent pins by allocating no-connection pins between pins which have different voltage nodes.
We prepare various quality grades for the new IC, including automotive (Rank K and A), industrial and consumer grades. You can select the optimal grade according to your applications.
R1526 系列 (HSOP-8E)
主要特性
1. Prevention of Output Voltage Fluctuations Caused by High-frequency Noise with a Bandwidth between 10 MHz to 1 GHz
Electromagnetic noise (EMC noise) generated by various automotive communication modules such as V2X and millimeter-wave radars may have a negative impact on the voltage regulator’s output voltage. You can take countermeasures against the EMC noise by such as equipping a system with noise filtering components, but these methods tend to increase cost and size of the board. By using the R1526, thanks to the high noise immunity achieved by our patent-pending circuit design technology, you can construct noise-immune systems even without any special countermeasures.
DPI method
2. Low Supply Current and Fast Response
There is a trade-off relation between supply current and response ability of a voltage regulator. The R1526 series, however, accomplishes good transient response despite its low supply current of 32 µA.
Load Transient Response (IOUT = 1 ｍA --> 50 ｍA)
Load Transient Response (IOUT = 50 ｍA --> 1 ｍA)
3. Pin Configuration Considering Short between Adjacent Pins
To prevent short between adjacent pins caused by mounting failure and deterioration over time, the R1526 series adopts HSOP-8E package so that no-connection pins are allocated between pins which have different voltage nodes. This helps reduce the risk of adjacent-pin short.
HSOP-8E Pin Descriptions
品质等级
| Grades | Applications | Operating Temperature Range | Test Temperature | ||
| Low | 25°C | High | |||
| K | General Automotive Equipment | -40°C to 125°C |  |
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|---|---|---|---|---|---|
| A | Automotive Accessories | -40°C to 125°C | |
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| Y | Industrial Equipment | -40°C to 125°C | |
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| Consumer | Consumer Equipment | -40°C to 105°C | |
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详细的产品特性和设计规格
产品说明：高抗干扰性产品
| Product Name | R1526 Series Voltage Regulator |
R1525 Series Voltage Regulator |
R1540 Series Voltage Tracker |
|---|---|---|---|
| VIN (Maximum Rating) | 3.5 V to 42 V (50 V) | 3.5 V to 42 V (50 V) | 3.5 V to 42 V (50 V) |
| VOUT | 1.8 V to 9.0 V | 1.8 V to 12.0 V | 2.2 V to 14.0 V (Tracking Voltage) |
| IOUT | 300 mA | 200 mA | 70 mA |
| ISS |
Typ. 32 µA (No Load) | Typ. 2.2 µA (No Load) | Typ. 60 µA (No Load) |
| Feature | Fast Response | Ultra-low ISS | High PSRR Typ. 80 dB (f = 100 Hz) |
We will provide automotive and industrial applications with high-value-added semiconductor devices that feature low supply current, low noise, and small size by the highest level of CMOS analog technology, and strengthen your competitive edge.