NJU8759WLC1 Amplifier Datasheet

NJU8759WLC1 Datasheet, PDF, Equivalent


Part Number

NJU8759WLC1

Description

Filter Less 3.0W Class-D Amplifier

Manufacture

JRC

Total Page 20 Pages
Datasheet
Download NJU8759WLC1 Datasheet


NJU8759WLC1
NJU8759WLC1
Analog Signal Input Monaural,
Filter Less 3.0W Class-D Amplifier
FEATURES (Typical value, Ta=25°C)
Supply voltage (RL3.6Ω)
High Power (V+=5V, THD+N=10%)
1.8V to 5.5V
- RL=8Ω
- RL=4Ω
Output LC Filterless Architecture
1.7W
3.0W
Built-in Pop noise reduction(Turn on/Turn off)
Analog Differential Input / PWM Output
Low Supply Current (V+=3.6V)
2.7mA
- Standby Current
1μA max.
Protection
- Short-Circuit
- Thermal Shut Down
- Under Voltage Lock Out (UVLO)
Space Saving Package
- 1.45mm x 1.45mm
WCSP9
DESCRIPTION
The NJU8759 is an analog signal input monaural filterless
class-D power amplifier. Operating voltage from 1.8V to
5.5V single supply can be used with 2-cell batteries.
NJU8759 features Class-D operation with high output
capability, is 1.7W output (8Ω load) and 3.0W output (4Ω
load). The BTL output configuration can reduce the
coupling capacitor. Furthermore, the output LC filterless
architecture, which was not available in conventional
class-D, reduces external parts and PCB size.
The NJU8759 operates from a single power supply of 1.8 V
and 1 μA maximum standby current, and is ideal for small
portable devices and portable audio devices, as well as
alarm devices and security devices that require low power
and high output.
APPLICATIONS
Security equipment
Portable Equipment
Portable Audio
MONAURAL POWER AMPLIFIER VARIATION
PRODUCT NAME
NJU72060
NJU7089
NJU8759AGM1
Des cription
0.5W Class-AB Power Amp
1.2W 1.8V Class-AB Power Amp
3.0W Filter Less Class-D Amplifier with HSOP8
APPLICATION CIRCUIT
V+
C3= C4=
10 μF 0.1 μF
UVLO
VDD
INP
C1=
0.47μF
C2=
0.47μF
INN
STBYB Signal
H : Active
L : Standby
C5=
1 nF
STBYB
CTRL_LGC
VSS
VDDO
OSC
TSD
OUTP
PWM
VSSO
OUTN
OCP
Power Efficiency vs. Output Power
100
V+=5V, THD=10%, Ta=25°C
90
80
RL=8Ω+33μH
RL=4Ω+33μH
70
60
50
0
0.5 1 1.5 2 2.5
Output Power [W]
3
Ver.1.2E
www.njr.com
-1-

NJU8759WLC1
NJU8759WLC1
PIN CONFIGURATIONS
C3
OUTP
Top View
C2
STBYB
C1
INN
B3
VSSO
B2
VDDO
B1
VDD
PIN No.
A1
A2
A3
B1
B2
B3
C1
C2
C3
A3
OUTN
SYMBOL
INP
VSS
OUTN
VDD
VDDO
VSSO
INN
STBYB
OUTP
A2
VSS
A1
INP
Positive input
Analog GND
Negative output
Power supply
Output power supply
Power GND
Negative input
Standby control
Positive output
PRODUCT NAME INFORMATION
NJU8759 WLC1 (TE1)
Part Number
Package
Taping Form
FUNCTION
ORDERING INFORMATION
PRODUCT NAME
PACKAGE
NJU8759WLC1
WCSP9
RoHS
Yes
HALOGEN-
FREE
Yes
TERMINAL
FINISH
SnAgCu
MARKING
8759
WEIGHT
(mg)
1.9
MOQ
(pcs)
3000
Ver.1.2E
www.njr.com
-2-


Features NJU8759WLC1 Analog Signal Input Monaura l, Filter Less 3.0W Class-D Amplifier FEATURES (Typical value, Ta=25°C) ● Supply voltage (RL≥3.6Ω) ●High Pow er (V+=5V, THD+N=10%) 1.8V to 5.5V - RL=8Ω - RL=4Ω ●Output LC Filterless Architecture 1.7W 3.0W ●Built-in P op noise reduction(Turn on/Turn off) Analog Differential Input / PWM Outpu t ●Low Supply Current (V+=3.6V) 2.7m A - Standby Current 1μA max. ● Pr otection - Short-Circuit - Thermal Sh ut Down - Under Voltage Lock Out (UVLO ) ●Space Saving Package - 1.45mm x 1.45mm WCSP9 DESCRIPTION The NJU8759 is an analog signal input monaural filt erless class-D power amplifier. Operati ng voltage from 1.8V to 5.5V single sup ply can be used with 2-cell batteries. NJU8759 features Class-D operation with high output capability, is 1.7W output (8Ω load) and 3.0W output (4Ω load). The BTL output configuration can reduc e the coupling capacitor. Furthermore, the output LC filterless architecture, which was not available in conventional class-D, .
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