PDF MM1431 Data sheet ( Hoja de datos )

Número de pieza	MM1431
Descripción	Precision Adjustable Shunt Regulator
Fabricantes	MITSUMI
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No Preview Available ! MITSUMI Precision Adjustable Shunt Regulator MM1431 Series Precision Adjustable Shunt Regulator MM1431 Series Outline This IC is 3-termial adjustable shunt regulator, which provides a highly accurate 0.8% bandgap reference voltage. The output voltage can be adjusted to any value between reference voltage VREF and 35V with two external resistors. Moreover, there are a lot of ranges of the application as a zener diode besides the replacement is possible because it has steep turn-on characteristics. Features (Unless otherwise speciﬁed, Topr=+25°C) (1) Reference voltage tolerance VREF=2.495V±0.8% (2) Output voltage can be adjusted VREF Vo 35V (3) Low Dynamic Output Impedance ZKA 0.2 typ. (4) Speciﬁcations Operating Temperature Cathode to Anode voltage Cathode current Reference voltage Reference voltage deviation over temperature range Minimum Cathode Current Off-state Cathode Current −30~+85ºC VKA VREF~35 V IK 0.6~50 mA VREF 2.495V±0.8% ±10mV (VKA=VREF, IK=10mA Ta=−30~+85ºC) IKmin. 0.6mA max. IOFF. 0.1µA typ. Pin Assignment Top view TO-92A Reference 1 2 3 Cathode Anode Top view SOT-25A * Anode 5 Reference 4 123 N.C. SUB Cathode * note : The second terminal is SUB, so connect the terminal to GND. Top view SC-82ABB Reference Cathode 43 1 N.C. 2 Anode Product list Packages TO-92A (BULK) TO-92A (TAPING) SOT-25A SC-82ABB SC-82ABB Parts no. MM1431AT MM1431ATT MM1431ANRE MM1431CURE MM1431DURE Reference voltage 2.495V±0.8% 2.495V±0.8% 2.495V±0.8% 2.495V±0.8% 2.495V±0.4% Cathode current 0.6~50 mA 0.6~50 mA 0.6~50 mA 0.6~50 mA 0.6~50 mA Dynamic impedance 0.2Ω typ. / 0.5Ω Max 0.2Ω typ. / 0.5Ω Max 0.2Ω typ. / 0.5Ω Max 0.2Ω typ. / 0.8 Ω Max 0.2Ω typ. / 0.8 Ω Max • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. 1 page MITSUMI Precision Adjustable Shunt Regulator MM1431 Series Dynamic Output Impedance Open loop Voltage Gain VKA=5V 100 60 10 40 1 20 0.1 0.01 100 1k 10k 100k Frequency f (Hz) 1M 0 -20 1k 10k 100k 1M Frequency f (Hz) 10M Pulse Response 6 Input Voltage 5 4 3 Output Voltage 2 1 0 0123456 Time t (µs) Stability Boundary Conditions 100 a 80 60 40 b c a b c d 20 0 00.1 0.01 0.1 1 Load Capacitance CL (µF) a: VKA=VREF b: VKA=5V C: VKA=10V d: VKA=15V Cathode voltage temperature Ta=25°C IKA=10mA CL=: Ceramic capacitor 10 Notes concerning stability operation region The MM1431AT/AN requires external capasitors for regulator stability. These capacitors must be correctly selected for good performance. • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. 5 Page

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