1877

NTE1877
Integrated Circuit
Module, Dual AF PO, 28W/Ch,
Dual Power Supply
Absoulte Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.5V
Maximum Output Power (VCC = 45V, f = 1kHz, RL = 4Ω), POmax . . . . . . . . . . . . . . . . . . . . . . . . 50W
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Case Temperature, TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +125°C
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
Turn–On Time (VCC = 35V, RL = 4Ω, PO = 28W, f = 1kHz), tS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2sec
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω
Electrical Characteristics: (TA = +25°C, VCC = 35V, RL = 4Ω, Rg = 600Ω, VG = 40dB unless
otherwise specified)
Parameter
Idle Current
Power Output
Total Harmonic Distortion
Symbol
ICCO
PO
THD
Test Conditions
Min
Typ
Max
Unit
–
–
175
mA
VCC = 13.2V, THD = 10%, f = 1kHz
4.8
–
–
W
THD = 10%, f = 1kHz
28
–
–
W
THD = 1%, f = 70Hz to 15kHz
18
21
–
W
VCC = 8V, PO = 1W, f = 1kHz
–
0.4
1.0
%
VCC = 45V, PO = 1W, f = 1kHz
–
–
0.5
%
VCC = 45V
Frequency Range
fL, fH
PO = 1W, VG = –3dB
Input Resistance
ri
PO = 1W, Rg = 10kΩ
–
21
–
kΩ
VCC = 45V, Rg = 10kΩ
–
–
0.8
mVrms
Noise Voltage
VNO
40 to 50k
Hz
Pin Connection Diagram
(Front View)
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
N.C.
Mute Output
Mute t Cap
Input 2
NFB 2
GND 2
Power GND 2
Output 2
Feedback 2
Bootstrap
Substrate
V (+)
Feedback 1
Output 1
Power GND 1
GND 1
NFB 1
Input 1
2.520 (64.0
2.190 (55.6)
.334 (8.5)
1.440
(36.4)
.737
(18.7)
1
18
.141 (3.6)
Dia
(2 Holes)
1.030
(23.5)
.158 (4.0)
.100 (2.54)
1.700 (43.18)
.114 (5.5)