AN7195Z Просмотр технического описания (PDF) - Panasonic Corporation

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AN7195Z

Dual 15 W BTL power IC for car audio

Panasonic Corporation 

ICs for Audio Common Use

s Technical Information

[1] PD  Ta curves of HZIP015-P-0745A

120

Infinity heat sink

113.6

100

PD  Ta

Rth (j−c) = 1.1°C/W

Rth (j−a) = 68.3°C/W

AN7195Z

80

1°C/W heat sink

60

59.5

2°C/W heat sink

40.3

40

3°C/W heat sink

30.5

5°C/W heat sink

20.5

20

10°C/W heat sink

11.3

Without heat sink

1.8

0

0

25

50

75

100

125

150

Ambient temperature Ta (°C)

[2] Application note

1. Standby function

1) The power can be turned on or off by

making pin 5 (standby terminal) high

Table 1

or low.

Terminal state Terminal voltage

Power

2) The standby terminal has threshold

voltage of approx. 2.1 V, however, it

has temperature dependency of

approx. − 6 mV/°C. The recommended

Open

Low

High

0V

0 V to 1.0 V

Higher than 3 V

Standby state

Standby state

Operating state

range of use is shown in table 1.

3) The internal circuit of standby terminal is as shown in figure 1. When the standby terminal is high, the current

approximately expressed by the following equation will flow into the circuit.

ISTB =

VSTB−2.7 V

10 kΩ

[mA]

5V

VSTB

0V

5

10 kΩ

Protection Constant

RF

circuit

current source

Sub

3.5 kΩ 3.5 kΩ 3.5 kΩ 3.5 kΩ

Figure 1

4) A power supply with no ripple component should be used for the control voltage of standby terminal .

7

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