The R3120 Series are CMOS-based 36V input voltage detector ICs. Since the maximum input voltage of R3120 is 36V (absolute maximum rating: 50V) and R3120 can detect up to 12V without divider resistor, it is suitable for automotive applications. There are two versions: A version has the CD pin for setting the output delay time. E version has the SENSE pin. The output delay time accuracy of R3120xxxxA is -50% to +80%. The reset signal of R3120xxxxE does not become unstable under the condition that the power supply is sufficient to operate the IC, and the "L" can be maintained. SOT-23-5 package is available.
|Operating Voltage Range (Maximum Rating)||R3120xxxxA: 1.2 V to 36.0 V (50.0 V)
R3120xxxxE: 2.1 V to 6.0 V (7.0 V)
|Operating Temperature Range||-40°C to 105°C|
|Supply Current||Typ. 3.3 µA|
|Detector Threshold Range||2.3 V to 12.0 V (0.1 V steps)|
|Detector Threshold Accuracy||±1.5% (Ta =25°C)|
|Detector Threshold Temperature Coefficient||Typ. ±100 ppm/°C|
|Release Output Delay Time||R3120NxxxA : Typ.85 ms (at CD= 0.01 µF)|
|Release Output Delay Time Accuracy||R3120NxxxA : −50% to 80%|
|Output Type||Nch. Open Drain|
When using a shared input voltage between R3120 and CPU
|5||CD or SENSE|
**) No.2 and No.3 pin must be wired to the GND plane when it is mounted on board.
Ricoh is committed to providing a semiconductor device with the highest level of quality and reliability by restricting the device manufacturing only within Ricoh and the cooperative companies successfully passed our stringent inspections for automotive products. Ricoh established a traceability system and manages manufacturing information and logistics information from the warehouse.
Quality Ranks for Applications
Ricoh offers three different quality ranks for automotive products according to their application purposes.
R3120 Series offer products in Rank 3.
Rank 3: Automotive Accessories
PRODUCT LONGEVITY PROGRAM
R3120N operate PRODUCT LONGEVITY PROGRAM (ten-year supply is maintained as of January, 2016).
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.
Operating Temperature Range : -40°C to 105°C
The detector threshold and the voltage detection type are user selectable options.
|Product Name||Package||Quantity per Reel|