BD5451EFV Datasheet, PDF (1/5 Pages) Rohm – Silicon Semiconductor integrated circuits

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STRUCTURE: Silicon Semiconductor integrated circuits
PRODUCT:
Stereo Class D Speaker Amplifier
TYPE:
BD5451EFV
PACKAGE:
HTSSOP-B28
FEATURES:
1) This IC has one system of digital audio interface.
(I²S format、SDATA: 16 / 20 / 24bit、LRCLK: 32kHz / 44.1kHz / 48kHz、BCLK: 64fs(fixed)、MCLK: 256fs(fixed))
2) Low supply current at RESET mode.
3) The decrease in sound quality because of the change of the power supply voltage is prevented with the
feedback circuitry of the output. In addition, a low noise and low distortion are achieved.
Eliminate large electrolytic-capacitors for high performance of Power Supply Rejection.
4) S/N of the system can be optimized by adjusting the gain setting among 2 steps. (20dB / 26dB)
5) Available for Monaural mode.
6) Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (10～18V)
7) It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and
low heat.
8) Eliminates pop noise generated when the power supply goes on/off, or when the power supply is suddenly shut
off. High quality muting performance is realized by using the soft-muting technology.
9) This IC is a highly reliable design to which it has various protection functions.
(High temperature protection, Under voltage protection, Output short protection, Output DC voltage protection
and Clock stop protection, (MCLK, BCLK, LRCLK)
10) Small package (HTSSOP-B28 package) contributes to reduction of PCB area.
●Absolute maximum ratings (Ta=25℃)
Item
Supply voltage
Symbol
VCC
Limit
22
Unit
Conditions
V Pin 14, 15, 16, 27, 28
Power dissipation
3.3
Pd
W
4.7
Input voltage
Terminal voltage 1
Terminal voltage 2
Terminal voltage 3
Open-drain terminal voltage
V_IN
V_PIN1
V_PIN2
V_PIN3
V_ERR
-0.3 ～ 4.5
-0.3 ～ 7.0
-0.3 ～ 4.5
22
-0.3 ～ 22
V Pin 1～6, 13
V Pin 8, 11, 12
V Pin 9
V Pin 17, 18, 20～23, 25, 26
V Pin 10
Operating temperature range
Topr
-25 ～ +85 ℃
Storage temperature range
Tstg -55 ～ +150 ℃
Maximum junction temperature Tjmax
+150
℃
※1 The voltage that can be applied reference to GND (Pin 7, 19, 24).
※2 Do not, however exceed Pd and Tjmax=150℃.
※3 70mm×70mm×1.6mm, FR4, 2-layer glass epoxy board (Copper on bottom layer : 70mm×70mm)
Derating in done at 26.4mW/℃ for operating above Ta＝25℃. There are thermal via on the board.
※4 70mm×70mm×1.6mm, FR4, 4-layer glass epoxy board (Copper on bottom layer : 70mm×70mm)
Derating in done at 37.6mW/℃ for operating above Ta＝25℃. There are thermal via on the board.
※1 ※2
※3
※4
※1
※1
※1
※1
※1
REV. A