BD7830NUV Rohm, BD7830NUV Datasheet - Page 12

• Manufacturer Part Number: BD7830NUV
• Description: 1.1W to1.5W Monaural Speaker Amplifier
• Manufacturer: Rohm

●Bass boost function
●Thermal shutdown function
BD7830NUV
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
External components can be added to this chip to provide a bass boost function.
When the chip exceeds the Tjmax (150°C) temperature by reaching a temperature of 180℃ or above, the protection
function is activated. High impedance is for OUT1 and OUT2 during protected mode. Protection is canceled and normal
operation is resumed when the chip's temperature falls to 120℃ or below.
Chip
Output
Gain
G
G
180°C
120°C
C1
C2
Ci
Low frequency gain up
Normal
Ri
f
C1
IN-
4
f
C2
Protected
operation
BIAS
Rf
12/17
f
Normal
Rfb
Cfb
Protection start temperature: 180°C (typ) or more
Protection cancels temperature:
less
5
OUT
f
f
G
G
C
C
C
C
1
2
1
2




2
2
20

20



log
log
Cfb
Cfb
1
Rf
Rf
Ri


1
(
Rf
Rf

Ri
(normal use)
Rfb
//
Rfb
www.DataSheet4U.com
)
120°C (typ) or
Technical Note
2010.06 - Rev.A
[Hz]
[Hz]
[dB]
[dB]