BD5460GUL(2009) データシートの表示（PDF） - ROHM Semiconductor

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BD5460GUL
(Rev.:2009)

2.5W Monaural Class-D Speaker Amplifier for Differential Analog Input

ROHM Semiconductor 

BD5460GUL

Technical Note

●Electric Characteristics

（Unless otherwise specified, Ta=25℃, VDD=3.6V, f=1kHz, RL=8Ω, AC item=LC Filter ; L=22µH, C=1µF ）

Rating

Item

Symbol

Unit

Conditions

MIN.

TYP.

MAX.

Circuit current (No signal)

ICC

―

2.0

4.0

mA Active mode, No load

Circuit current (Standby)

ISTBY

―

0.1

2

µA Standby mode

Output power 1

PO1

450

680

―

mW BTL, f=1kHz, THD+N=1% *1

Output power 2

PO2

550

850

―

mW BTL, f=1kHz, THD+N=10% *1

Voltage gain

GV

5.4

5.9

6.4

dB BTL

Power Supply Rejection Ratio

PSRR

45

53

―

dB BTL,f=1kHz, Vripple=0.1Vpp *2

Output offset voltage

ΔVo

-25

0

+25

mV Vin=0V, BTL

Switching Frequency

fosc

175

250

325

kHz

Start-up time

Ton

0.39

0.51

0.73 msec

Standby

input Voltage

Standby

input current

High-level

Low-level

High-level

Low-level

VSTBYH

1.4

VSTBYL

0

ISTBYH

6

ISTBYL

-5

―

VDD

V Active mode

―

0.4

V Standby mode

12

18

µA VSTBY=3.6V

0

5

µA VSTBY=0V

BTL=Bridged Tied Load (Voltage between A3-C3.), *1;B.W.=400～30kHz，*2;DIN AUDIO

●Measurement Circuit Diagram

Vripple

A

10μ

VDD

VDD B1

B2 PVDD

VSTBY

A

STBY

C2

Bias

OSC

0.1μ IN+

A1

Vin

0.1μ IN-

Vin

C1

PWM

H-

Bridge

GND A2

B3 PGND

OUT-

A3

22μH

1μ

8

V VSE

V VBTL

OUT+

C3

22μH

1μ

V VSE

●Active / Standby Control

STBY Pin（C2pin）

Mode

Active

Standby

Pin level

H

L

Conditions

IC active

IC shutdown

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© 2009 ROHM Co., Ltd. All rights reserved.

2/15

2009.07 - Rev.A

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