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BD27400GUL Datasheet(PDF) 1 Page - Rohm

No. de pieza BD27400GUL
Descripción Electrónicos  Filter-Less Class-D Monaural Speaker Amplifier
Download  23 Pages
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Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

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Datasheet
〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays
.
1/19
TSZ02201-0C1C0E754430-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
23.Apr.2014 Rev.003
TSZ22111 • 14 • 001
www.rohm.com
Small-sized Class-D Speaker Amplifiers
Filter-Less Class-D
Monaural Speaker Amplifier
BD27400GUL
General Description
BD27400GUL is a low voltage drive class-D monaural
speaker amplifier that was developed for cellular
telephones, mobile audio products and the others.
The LC filter of the speaker output is unnecessary and
the external part can compose a speaker amplifier at
three.
Because the efficiency is high and is low consumption
power with the class-D operation, it is the optimal for the
application of the battery drive.
Also Current consumption of 0
μA when standby and fast
transitions from standby to active with little pop noise
make it is suitable for applications that switch repeatedly
between suspended and active.
Features
High output power
2.5W typ.(VDD=5V, RL=4
Ω, THD+N=10%, BTL)
Very small package 9-Pin WL-CSP
Gain selectable by external resistor
LC Filter less
Protection circuitry
(Short protection, Thermal shutdown,
Under voltage lockout)
Analogue differential input / PWM digital output
Pop noise suppression circuitry
Applications
 Mobile phone, Smart phone, Digital video camera
Key Specifications
Operating voltage Range:
2.5V to 5.5V
Circuit current(No signal):
2.9mA(Typ)
Circuit current(Stand by):
0.1
μA(Typ)
Output Power(RL=8
Ω):
0.85W(Typ)
Output Power(RL=4
Ω):
2.5W(Typ)
Start-up time:
3.0msec(Typ)
Operating Temperature Range:
-40°C to +85°C
Package(s)
W(Typ) x D(Typ) x H(Max)
VCSP50L1
1.50mm x 1.50mm x 0.55mm
Typical Application Circuit(s)
Figure 1. Application circuit
VCSP50L1
STBY
IN+
IN-
Bias
OSC
PWM
H-
Bridge
VDD
C2
A1
C1
B1
B2 PVDD
OUT-
A3
OUT+
C3
PGND
A2
GND
B3
CS
+V
BAT
Ri
Ri


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