NCP4894
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4
PIN CONNECTIONS
A3
B3
C3
A2
B2
C2
A1
B1
C1
INP BYPASS OUTB
VP SD MODE VM
INM SD SELECT OUTA
9−Pin Flip−Chip
10
9
8
6
1
2
3
5
SD SELECT
INM
SD MODE
BYPASS
OUTA
VP
NC
OUTB
Micro−10
(Top View)
(Top View)
7
4
INP VM
1
2
3
4
5
10
9
8
7
6
SD SELECT
INM
SD MODE
BYPASS
OUTA
VP
NC
OUTB
INP VM
(Top View)
DFN10
PIN DESCRIPTION
9−Pin Flip−Chip Micro−10/DFN10 Type Symbol Description
A1 4 I INP Positive Differential Input
A2 5 O BYPASS Bypass Capacitor Pin which Provides the Common Mode Voltage
A3 6 I OUTB Negative BTL Output
B1 9 I VP Positive Analog Supply of the Cell
B2 3 I SD MODE Shutdown High or Low Selectivity (Note 1)
B3 7 I VM Ground
C1 2 I INM Negative Differential Input
C2 1 O SD SELECT (Note 1)
C3 10 I OUTA Positive BTL Output
1. The SD SELECT pin must be toggled to the same state as the SD MODE pin to force the device in shutdown mode.
NCP4894
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5
MAXIMUM RATINGS (Note 2)
Rating Symbol Value Unit
Supply Voltage VP 6.0 V
Operating Supply Voltage Op VP 2.2 to 5.5 V
Input Voltage V
in
−0.3 to Vcc +0.3 V
Max Output Current Iout 500 mA
Power Dissipation (Note 3) Pd Internally Limited
Operating Ambient Temperature T
A
−40 to +85 °C
Max Junction Temperature T
J
150 °C
Storage Temperature Range T
stg
−65 to +150 °C
Thermal Resistance Junction−to−Air Micro−10
DFN 3x3 mm
9−Pin Flip−Chip
R
q
JA
200
70
(Note 4)
°C/W
ESD Protection Human Body Model (HBM) (Note 5)
Machine Model (MM) (Note 6)
> 2000
> 200
V
Latchup Current at T
A
= 85°C (Note 7) 100 mA
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
2. Maximum electrical ratings are defined as those values beyond which damage to the device may occur at T
A
= +25°C.
3. The thermal shutdown set to 160°C (typical) avoids irreversible damage on the device due to power dissipation. For further information see
page 7.
4. For the 9−Pin Flip−Chip CSP package, the R
q
JA
is highly dependent of the PCB Heatsink area. For example, R
q
JA
can equal 195°C/W with
50 mm
2
total area and also 135°C/W with 500 mm
2
. For further information see page 10. The bumps have the same thermal resistance and
all need to be connected to optimize the power dissipation.
5. Human Body Model, 100 pF discharge through a 1.5 kW resistor following specification JESD22/A114.
6. Machine Model, 200 pF discharged through all pins following specification JESD22/A115.
7. Maximum ratings per JEDEC standard JESD78.
NCP4894
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6
ELECTRICAL CHARACTERISTICS Limits apply for T
A
between −40°C to +85°C (Unless otherwise noted).
Characteristic Symbol Conditions
Min
(Note 8)
Typ
Max
(Note 8)
Unit
Supply Quiescent Current I
dd
VP = 3.0 V, No Load
VP = 5.0 V, No Load
1.9
2.1
mA
VP = 3.0 V, 8.0 W
VP = 5.0 V, 8.0 W
2.0
2.2
4.0
Common Mode Voltage V
cm
VP/2 V
Shutdown Current I
SD
For VP between 2.2 V to 5.5 V
SDM = SDS = GND
T
A
= 25°C
T
A
= −40°C to +85°C
20
600
2.0
nA
mA
SD SELECT Threshold High V
SDIH
1.4 V
SD SELECT Threshold Low V
SDIL
0.4 V
Turning On Time (Note 10) T
WU
C
by
= 1.0 mF 140 ms
Turning Off Time (Note 10) T
SD
20 ms
Output Swing V
loadpeak
VP = 3.0 V, R
L
= 8.0 W 2.5 V
VP = 5.0 V, R
L
= 8.0 W (Note 9)
T
A
= 25°C
T
A
= −40°C to +85°C
4.0
3.85
4.3
V
Rms Output Power P
O
VP = 3.0 V, R
L
= 8.0 W
THD + N < 0.1%
VP = 3.3 V, R
L
= 8.0 W
THD + N < 0.1%
VP = 5.0 V, R
L
= 8.0 W
THD + N < 0.1%
0.39
0.48
1.08
W
Output Offset Voltage V
OS
For VP between 2.2 V
to 5.5 V
−30 1.0 30 mV
Power Supply Rejection Ratio PSRR V+ G = 2.0, R
L
= 8.0 W
VP
ripple_pp
= 200 mV
C
by
= 1.0 mF
Input Terminated with 10 W
F = 217 Hz
VP = 5.0 V
VP = 3.0 V
F = 1.0 kHz
VP = 5.0 V
VP = 3.0 V
−80
−80
−85
−85
dB
Efficiency h VP = 3.0 V, P
orms
= 380 mW
VP = 5.0 V, P
orms
= 1.0 W
64
63
%
Thermal Shutdown Temperature T
sd
160 °C
Total Harmonic Distortion THD VP = 3.0 V, F = 1.0 kHz
R
L
= 8.0 W, A
V
= 2.0
P
O
= 0.32 W
VP = 5.0 V, F = 1.0 kHz
R
L
= 8.0 W, A
V
= 2.0
P
O
= 1.0 W
0.007
0.006
%
8. Min/Max limits are guaranteed by design, test or statistical analysis.
9. This parameter is not tested in production for 9−Pin Flip−Chip CSP package in case of a 5.0 V power supply, however it is correlated based
on a 3.0 V power supply testing.
10.See page 12 for a theoretical approach of these parameters.

NCP4894FCT1

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Audio Amplifiers 1.8W Diff Audio PWR
Lifecycle:
New from this manufacturer.
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