BD6520F(2008) 데이터 시트보기 (PDF) - ROHM Semiconductor

부품명

상세내역

제조사

BD6520F
(Rev.:2008)

Large Current Output Power Management Switch ICs

ROHM Semiconductor 

●Thermal derating characteristic

(SOP8)

600

500

400

300

200

100

0

0

25

50

75

100

125

150

AMBIENT TEMPERATURE: Ta [℃]

Fig. 67 Power dissipation curve

● Cautions on use

(1) Absolute Maximum Ratings

An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can

break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any

special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety

measures including the use of fuses, etc.

(2) Operating conditions

These conditions represent a range within which characteristics can be provided approximately as expected. The electrical

characteristics are guaranteed under the conditions of each parameter.

(3) Reverse connection of power supply connector

The reverse connection of power supply connector can break down ICs. Take protective measures against the breakdown

due to the reverse connection, such as mounting an external diode between the power supply and the IC’s power supply

terminal.

(4) Power supply line

Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines. In this regard, for

the digital block power supply and the analog block power supply, even though these power supplies has the same level of

potential, separate the power supply pattern for the digital block from that for the analog block, thus suppressing the

diffraction of digital noises to the analog block power supply resulting from impedance common to the wiring patterns. For the

GND line, give consideration to design the patterns in a similar manner.

Furthermore, for all power supply terminals to ICs, mount a capacitor between the power supply and the GND terminal. At the

same time, in order to use an electrolytic capacitor, thoroughly check to be sure the characteristics of the capacitor to be used

present no problem including the occurrence of capacity dropout at a low temperature, thus determining the constant.

(5) GND voltage

Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state.

Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric

transient.

14/16

Share Link: