Datasheet

UNISONIC TECHNOLOGIES CO., LTD
TDA7377
LINEAR INTEGRATED CIRCUIT
2 x 30W DUAL/QUAD POWER
AMPLIFIER FOR CAR RADIO

DESCRIPTION
The UTC TDA7377 is a class AB car radio amplifier for car
radio, it can work either in dual bridge or quad single ended
configuration. The exclusive fully complementary structure of the
output stage and the internally fixed gain guarantees the highest
possible power performances with few external components. The
on-board clip detector simplifies gain compression operation. The
fault diagnostics makes it possible to detect mistakes during car
radio set assembly and wiring in the car.

FEATURES
HZIP-15D
* High Output [email protected]=14.4V, f=1KHz,RL=4Ω:
– 2 x 35W Max.
– 2 x [email protected]= 10%
– 4 x 6 W @10%
– 4 x 10W / [email protected]%
– 2 x 30W / EIAJ@ VCC =13.7V,RL=4Ω
* CMOS Compatible Stand-by Function (Low ICC)
* No Audible pop During st-by Operations
* Internally Fixed Gain (26dB BTL and 20dB single ended)
* No Bootstrap Capacitors and boucherot Cells
* Diagnostics Facility on pin10 when output Clipping, shorted to
Vcc or GND, thermal shutdown and soft short at turn on.
* Rail to rail output swing
* Absolute Stability Without Any External Compensation.

HZIP-15A

PROTECTIONS
* Load Dump Voltages surge
* Reversed Battery
* Output DC Short Circuit protecttion with
Low current when shorted to GND or VCC.
* Output AC short circuit protection: across
the load
* Silent Turn On/Off
* thermal shutdown
* Load very Inductive speakers
* Fortuitous Open GND
* ESD
ORDERING INFORMATION
Ordering Number
Lead Free
TDA7377L-J15-A-T
TDA7377L-J15-D-T
TDA7377L-J15-A-T
Halogen Free
TDA7377G-J15-A-T
TDA7377G-J15-D-T
(1) Packing Type
Package
Packing
HZIP-15A
HZIP-15D
Tube
Tube
(1) T: Tube
(2) Package Type
(2) J15-A:HZIP-15A, J15-D: HZIP-15D
(3) Lead Free
(3) L: Lead Free, G: Halogen Free
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Copyright © 2012 Unisonic Technologies Co., Ltd
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TDA7377

LINEAR INTEGRATED CIRCUIT
PIN CONNECTION
HZIP-15A
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
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OUT 3
OUT 4
VCC
INPUT 3
INPUT 4
DIAGNOSTICS
S-GND
PW-GND
STAND-BY
SVR
INPUT 2
INPUT 1
VCC
OUT 2
OUT 1
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
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
VCC
4
VCC
13
3
IN 1
ST - BY
IN 2
IN 3
7
A1
+
-
1
A2 1NV
+
-
2
A3
+
-
15
OUT 1
OUT 2
5
OUT 3
12
A4 1NV
14
+
-
IN 4
11
10
6
SVR
8
9
PW - GND
S - GND
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OUT 4
DIAGNOSTICS
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LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Operating Supply Voltage
VOP
18
V
DC Supply Voltage
VS
28
V
Peak Supply Voltage (for t = 50ms)
VS(PEAK)
50
V
not Repetitive t = 100µs
4.5
A
Output Peak Current
IO(PEAK)
Repetitive f >10Hz
3.5
A
HZIP-15A
33
Power Dissipation (TC= 70°C)
PD
W
HZIP-15D
30
Junction Temperature
TJ
+150
°C
Storage Temperature
TSTG
-40~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
Junction to Case
PARAMETER
HZIP-15A
HZIP-15D
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SYMBOL
θJC
RATINGS
1.4
1.8
UNIT
°C/W
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LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(VS = 14.4V; RL = 4Ω; f = 1 KHz; TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Supply Voltage Range
VS
IN
VI(ST-BY)
ST-BY Threshold Voltage
OUT VO(ST-BY)
Voltage Saturation on pin 10
VSAT Sink Current at Pin 10 = 1mA
Output Offset Voltage
VO(OFF)
Non Inverting Channels
Rg = 0; S.E.
”A” weighted, Inverting Channels
Input Noise Voltage
eN
Bridge, Rg = 0; 22Hz ~ 22KHz
Total Quiescent Drain Current
IQ
RL = ∞
Max Driving Current Under Fault
ST-BY Pin Current(pin 7)
IST-BY
Play Mode Vpin7 = 5V
ST-BY Current Consumption
IST-BY VST-BY = 0 ~ 1.5V
ICD(OFF) d = 1% (Note 2)
Clipping Detector Output OFF
Average Current
ON
ICD(ON) d = 5% (Note 2)
Single Ended
Input Impedance
RIN
Bridge
Bridge
THD = 10%;
Output Power
POUT
Single Ended
RL = 4Ω
Single Ended, RL = 2Ω
Max
PO(MAX) VS = 14.4V, Bridge
Output Power (Note 3)
EIAJ PO(EIAJ) VS = 13.7V, Bridge
Single Ended, POUT=0.1~4W
Distortion
THD RL = 4Ω
Bridge, POUT = 0.1 ~ 10W
f = 1KHz Single Ended
f = 10KHz Single Ended
Cross Talk
CT
f = 1KHz Bridge
f = 10KHz Bridge
Single Ended
Voltage Gain
GV
Bridge
Voltage Gain Match
GV
Supply Voltage Rejection
SVR Rg = 0; f = 300Hz
Stand-by Attenuation
AST-BY PO = 1W
Note: 1. See built-in S/C protection description
2. Pin 10 Pulled-up to 5V with 10KΩ; RL = 4Ω
3. Saturated square wave output.
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MIN
8
TYP
MAX
18
1.5
UNIT
V
0.7
150
V
mV
3.5
2
5
3.5
µV
150
5
50
100
20
10
18
5.5
31
27
55
90
160
30
15
20
6
10
35
30
0.02
0.03
70
60
19
25
60
20
26
50
80
90
V
µV
mA
mA
µA
µA
µA
µA
KΩ
W
W
W
0.3
21
27
0.5
%
dB
dB
dB
dB
dB
dB
dB
dB
dB
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LINEAR INTEGRATED CIRCUIT
TYPICAL TEST AND APPLICATION CIRCUIT
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
LINEAR INTEGRATED CIRCUIT
TYPICAL TEST AND APPLICATION CIRCUIT (Cont.)
ST-BY
10K
VS
10μF
IN L
100nF
7
4
13
3
1
2200μF
0.22μF
IN L
2
5
0.22μF
IN BRIDGE
2200μF
11
6
47μF
OUT L
OUT R
15
12
0.47μF
1000μF
8
9
10
14
OUT
BRIDGE
DIAGNOSTICS
Figure 3. Stereo/Bridge
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LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION INFORMATION
Diagnostics Facility note:
UTC TDA7377 built in a diagnostic circuitry, when following events appearing: clipping in the output signal,
thermal shutdown, and output fault including short to GND, short to VS and soft short at turn on.
When the event is detected, The information is available across an open collector output (pin 10) through a current
sinking (see Fig 4).The current sinking at pin 10 is triggered when a certain distortion level is reached at any of the
outputs. This function allows gain compression possibility whenever the amplifier is overdriven. The current sinking
at pin 10 also can be triggered When the IC’s operating temperature raise to about 10°C before the shutdown
threshold.
Normally the clip detector signaling produces a low level at pin 10 that is shorter than that present under faulty
conditions; This can be used to discriminate each event (clipping detection, output fault, thermal proximity).
10
R
VREF
VPIN 10
UTC TDA7377
Figure 4. Pin10 Diagnostic Circuitry
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
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
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LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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