BD5426EFS Datasheet, PDF (2/17 Pages) Rohm – 10W+10W Class-D Speaker Amplifier for Analog Input

BD5426EFS
Technical Note
●Absolute Maximum Ratings
A circuit must be designed and evaluated not to exceed absolute maximum rating in any cases and even momentarily, to prevent
reduction in functional performances and thermal destruction of a semiconductor product and secure useful life and reliability.
The following values assume Ta =25℃. For latest values, refer to delivery specifications.
Item
Symbol
Rating
Unit
Conditions
Supply voltage
VCC
+20
V Pin 7, 8, 15, 16, 29, 30, 37, 38, 40 (Note 1, 2)
Power dissipation
2.0
W (Note 3)
Pd
4.5
W (Note 4)
Input voltage for signal pin
VIN
-0.2 ～ +7.2
V Pin 1, 44 (Note 1)
Input voltage for control pin
VCONT -0.2 ～ Vcc+0.2
V Pin 20, 24 (Note 1)
Input voltage for clock pin
VOSC
-0.2 ～ +7.2
V Pin 23 (Note 1)
Operating temperature range
Topr
-40 ～ +85
℃
Storage temperature range
Tstg
-55 ～ +150
℃
Maximum junction temperature Tjmax
+150
℃
(Note 1) A voltage that can be applied with reference to GND (pins 11, 12, 33, 34, and 43)
(Note 2) Pd and Tjmax=150℃ must not be exceeded.
(Note 3) 70mm × 70mm × 1.6mmFR4 One-sided glass epoxy board (Back copper foil 0%) installed.
If used under Ta=25℃ or higher, reduce 16mW for increase of every 1℃. The board is provided with thermal via.
(Note 4) 70mm × 70mm × 1.6mmFR4 Both-sided glass epoxy board (Back copper foil 100%) installed.
If used under Ta=25℃ or higher, reduce 36mW for increase of every 1℃. The board is provided with thermal via.
●Operating Conditions
The following values assume Ta =25℃. Check for latest values in delivery specifications.
Item
Symbol
Rating
Unit
Conditions
Supply voltage
VCC
+10～+16.5
V Pin 7, 8, 15, 16, 29, 30, 37, 38, 40
Load resistance
RL
(Note 5) Pd should not be exceeded.
6 ～ 16
Ω (Note 5)
●Electrical Characteristics
Except otherwise specified Ta = 25℃, VCC = 12V, fIN = 1kHz, Rg = 0Ω, RL = 8Ω,MUTEX="H", MS="L"
For latest values, refer to delivery specifications.
Item
Symbol
Representative
value
Unit
Conditions
Whole circuit
Circuit current 1 (Sampling mode)
I_CC1
25
mA With no signal
Circuit current 2 (Muting mode)
I_CC2
10
mA MUTEX = “L”
Control circuit
“H” level input voltage
“L” level input voltage
V_IH
2.3～12
V_IL
0～0.8
V
SDX, MUTEX, MS
V
SDX, MUTEX, MS
Audio circuit
Voltage gain
GV
28
dB PO = 1W
Maximum output power 1 (Note 6)
PO1
9
W
THD+N = 10%
Maximum output power 2 (Note 6)
PO2
10
W
Vcc = 13V, THD+N = 10%
Total harmonic distortion (Note 6)
THD
0.1
%
PO = 1W, BW=20Hz～20kHz
Crosstalk
CT
85
dB
PO = 1W, Rg = 0Ω, BW = IHF-A
Output noise voltage (Sampling mode)
VNO
80
µVrms Rg = 0Ω, BW = IHF-A
Residual noise voltage (Muting mode)
VNOM
1
µVrms Rg = 0Ω, BW = IHF-A, MUTEX = “L”
Internal sampling clock frequency
FOSC
250
kHz MS = “L” (In master operation)
(Note 6) The rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components,
and power supplies.
The reference values are those applicable to the device and components directly installed on a board specified by us.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2/16
2009.06 - Rev.A