NCP2809 Series
http://onsemi.com
6
ELECTRICAL CHARACTERISTICS All the parameters are given in the capless configuration (typical application).
The following parameters are given for the NCP2809A and NCP2809B mounted externally with 0 dB gain, unless otherwise noted.
(For typical values TA = 25°C, for min and max values TA = 40°C to 85°C, TJmax = 125°C, unless otherwise noted.)
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
Positive Supply Rejection Ratio
PSRR V+
RL = 16 W
Vpripple_pp = 200 mV
Cby = 1.0 mF
Input Terminated with 10 W
NCP2809A
F = 217 Hz
Vp = 5.0 V
Vp = 2.4 V
F = 1.0 kHz
Vp = 5.0 V
Vp = 2.4 V
73
82
73
85
dB
Positive Supply Rejection Ratio
PSRR V+
RL = 16 W
Vpripple_pp = 200 mV
Cby = 1.0 mF
Input Terminated with 10 W
NCP2809B
with 0 dB External Gain
F = 217 Hz
Vp = 5.0 V
Vp = 2.4 V
F = 1.0 kHz
Vp = 5.0 V
Vp = 2.4 V
80
82
81
dB
Efficiency
h
VP = 5.0 V, RL = 16 W = 135 mW
63
%
Thermal Shutdown Temperature
Tsd
160
°C
Total Harmonic Distortion + Noise
THD+N
VP = 2.4 V, f = 1.0 kHz
RL = 16 W, Pout = 20 mW
RL = 32 W, Pout = 15 mW
VP = 5.0 V, f = 1.0 kHz
RL = 16 W, Pout = 120 mW
RL = 32 W, Pout = 70 mW
0.006
0.004
0.005
0.003
%
7. Min/Max limits are guaranteed by production test.
8. This thermal shutdown is made with an hysteresis function. Typically, the device turns off at 160°C and turns on again when the junction
temperature is less than 140°C.
9. The outputs of the device are sensitive to a coupling capacitor to Ground. To ensure THD+N at very low level for any sort of headset
(16 W or 32 W), outputs (OUT_R, OUT_L, OUT_I and REF_I) must not be grounded with more than 500 pF.