R3120 Series

36V Input Voltage Detector with Delay Function or SENSE pin

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Description

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.

Spec

	Automotive
Operating Voltage Range	R3120NxxxA: 1.2 V to 36.0 V (50.0 V) R3120NxxxE: 2.1 V to 6.0 V (7.0 V)
Operating Temperature Range	-40°C to 105°C (125°C)
Supply Current	Typ. 3.3 µA
Detector Threshold Range	2.3 V to 12.0 V (0.1 V step)
Detector Threshold Accuracy	±1.5% (Ta = 25°C)
Detector Threshold Temperature Coefficient	Typ. ±100 ppm/°C
Release Delay Time	R3120NxxxA: Typ.85 ms (CD = 0.01 µF)
Release Delay Time Accuracy	R3120NxxxA: −50% to 80%
Output Type	Nch Open Drain
Package	SOT-23-5

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Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
R3120Nxxxx-TR-AE		SOT-23-5	R3120N	R3120N-AE

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.