µ PC29xx Series

5

Data Sheet G10026EJ4V0DS

ABSOLUTE MAXIMUM RATINGS (TA = 25

°C, Unless otherwise specified.)

Parameter

Symbol

Rating

Unit

µPC29xxHF

µPC29xxHB, µPC29xxT

Input Voltage

VIN

20

V

Internal Power Dissipation (TC = 25

°C) Note

PT

15

10

W

Operating Ambient Temperature

TA

–30 to +85

°C

Operating Junction Temperature

TJ

–30 to +150

°C

Storage Temperature

Tstg

–55 to +150

°C

Thermal Resistance (Junction to Case)

Rth (J-C)

7

12.5

°C/W

Thermal Resistance (Junction to Ambient)

Rth (J-A)

65

125

°C/W

Note Internally limited. When the operating junction temperature rises above 150

°C, the internal circuit shuts down

the output voltage.

Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any

parameter. That is, the absolute maximum ratings are rated values at which the product is on the

verge of suffering physical damage, and therefore the product must be used under conditions that

ensure that the absolute maximum ratings are not exceeded.

TYPICAL CONNECTION

D1

PC29xx

INPUT

COUT

CIN

D2

+

µ

OUTPUT

CIN

: 0.1

µF or higher. Be sure to connect CIN to prevent parasitic oscillation. Set this value according to the

length of the line between the regulator and the INPUT pin. Use of a film capacitor or other capacitor

with first-rate 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

: 47

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 1 to 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.