UPC2918 データシートの表示（PDF） - NEC => Renesas Technology

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UPC2918

BIPOLAR ANALOG INTEGRATED CIRCUIT

NEC => Renesas Technology 

µPC2918, 2925, 2926

ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified)

Parameter

Input Voltage

Internal Power Dissipation (TC = 25°C)

Operating Ambient Temperature

Operating Junction Temperature

Storage Temperature

Thermal Resistance (junction to case)

Thermal Resistance (junction to ambient)

Symbol

VIN

PT

TA

TJ

Tstg

Rth(J-C)

Rth(J-A)

Rating

–0.3 to +20

10Note

–30 to +85

–30 to +150

–55 to +150

12.5

125

Unit

V

W

°C

°C

°C

°C/W

°C/W

Note Internally limited. When the operating junction temperature rises over 150°C, the internal circuit shuts down the

output voltage.

Caution If the absolute maximum rating of any of the above parameters is exceeded even momentarily, the

quality of the product may be degraded. In other words, absolute maximum ratings specify the

values exceeding which the product may be physically damaged. Be sure to use the product with

these ratings never exceeded.

# TYPICAL CONNECTION

D1

INPUT

CIN

µPC2918, 2925, 2926

+

COUT

OUTPUT

D2

CIN: 0.1 µF or higher. Set this value according to the length of the line between the regulator and INPUT pin. Be sure

to connect CIN to prevent parasitic oscillation. Use of a film capacitor or other capacitor with excellent voltage and

temperature characteristics is recommended. If using a laminated ceramic capacitor, it is necessary to ensure

that CIN is 0.1 µF or higher for the voltage and temperature range to be used.

COUT: 10 µF or higher. Be sure to connect COUT to prevent oscillation and improve excessive load regulation. Place

CIN and COUT as close as possible to the IC pins (within 2 cm). Also, use an electrolytic capacitor with low

impedance characteristics if considering use at sub-zero temperatures.

D1: If the OUTPUT pin has a higher voltage than the INPUT pin, connect a diode.

D2: If the OUTPUT pin has a lower voltage than the GND pin, connect a Schottky barrier diode.

Caution Make sure that no voltage is applied to the OUTPUT pin from external.

Data Sheet G14983EJ3V0DS

3

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