UTC TDA7375G-J15-A, TDA7375-J15-A, TDA7375L-J15-A Schematic [ru]

UNISONIC TECHNOLOGIES CO., LTD

TDA7375

LINEAR INTEGRATED CIRCUIT

2 x 35W DUAL/QUAD POWER
AMPLIFIER FOR CAR RADIO

 DESCRIPTION

The UTC TDA7375 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

* High output power capability:

– 2 x 40W Max. / 4
– 2 x 25W / 4@14.4V, 1KHz, 10%
– 2 x 35W / 4 EIAJ
– 4 x 7 W / 4@14.4V, 1KHz, 10%
– 4 x 12W / 2@14.4V, 1KHz, 10%

* Minimum external components:

– No bootstrap capacitors
– No Boucherot cells

– Internally fixed gain (26dB BTL)
* Stand-by function (CMOS compatible)
* No audible pop during st-by operations
* Diagnostics facility for:

– Clipping

– Out to GND short

– Out to V

– Soft short at turn-on

– Thermal shutdown proximity

short

S

Lead-free: TDA7375L
Halogen-free:TDA7375G

 PROTECTIONS

* Output AC/DC short circuit
– to GND
– to V

S

– across the load
* Soft short at turn-on
* Overrating chip temperature with soft
thermal limiter
* Load dump voltages urge
* Very inductive loads
* Fortuitous open GND
* Reversed battery
* ESD

 ORDERING INFORMATION

Ordering Number

Normal Lead Free Plating Halogen Free

TDA7375-J15-A-T TDA7375L-J15-A-T TDA7375G-J15-A-T HZIP-15A Tube

TDA7375L-J15-A-T

(1) Packing Type

(2) Package Type

(3) Lead Plating

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Copyright © 2009 Unisonic Technologies Co., Ltd QW-R107-046.C

(1) T: Tube

(2) J15-A: HZIP-15A

(3) G: Halogen Free, L: Lead Free, Blank: Pb/Sn

Package Packing

TDA7375 LINEAR INTEGRATED CIRCUIT

 PIN CONNECTION (Top view)

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

 BLOCK DIAGRAM

OUT 3

OUT 4

CC

V

INPUT 3

INPUT 4

DIAGNOSTICS

S - GND

PW - GND

STAND - BY

SVR

INPUT 2

INPUT 1

CC

V

OUT 2

OUT 1

VCC VCC

A1

+

-

A2 1NV

+

-

A3

+

-

A4 1NV

+

-

1

2

15

14

10

OUT 1

OUT 2

OUT 3

OUT 4

DIAGNOSTICS

IN 1

ST - BY

IN 2

IN 3

IN 4

4

7

5

12

11

13 3

986

PW - GNDSVR S - GND

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TDA7375 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) V

Output Peak Current

not repetitive t = 100µs 4.5 A

repetitive f >10Hz

S(PEAK)

I

O(PEAK)

Power Dissipation (TC= 85°C) PD 36 W
Junction Temperature TJ +150 °C
Storage Temperature T

-40~+150 °C

STG, TJ

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

PARAMETER SYMBOL RATINGS UNIT

Junction to Case JC 1.8 °C/W

 ELECTRICAL CHARACTERISTICS

(VS = 14.4V; RL = 4; f = 1 KHz; Ta =25°C, unless otherwise specified)

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Supply Voltage Range VS 8 18 V

ST-BY Threshold Voltage

IN V

OUT V
Voltage Saturation on pin 10 V
Output Offset Voltage V

Input Noise Voltage eN

Total Quiescent Drain Current IQ RL =  200 mA

ST-BY Pin Current(pin 7) I

ST-BY Current Consumption I

OFF I
Average Current

ON I

Input Impedance RIN

Output Power P

Output Power (Note 3)

Max. P

EIAJ P

Distortion THD RL = 4

Cross Talk CT

Voltage Gain GV

Voltage Gain Match GV 0.5 dB
Supply Voltage Rejection SVR Rg = 0; f = 300Hz 50 dB
Stand-by Attenuation A
Notes: 1. See built-in S/C protection description

2. Pin 10 Pulled-up to 5V with 10K; RL = 4

3. Saturated square wave output.

1.5

I(ST-BY)

3.5

O(ST-BY)

Sink Current at Pin 10 = 1mA 0.7 V

SAT

150 mV

O(OFF)

Rg = 0; S.E.
”A” weighted,

Non Inverting Channels 2

Inverting Channels 5

Bridge, Rg = 0; 22Hz ~ 22KHz 3.5 µV

Max Driving Current Under Fault 5 mA

ST-BY

Play Mode Vpin7 = 5V 50 µA

V

ST-BY

d = 1% (Note 2) 90 µA Clipping Detector Output

CD(OFF)

d = 5% (Note 2) 160 µA

CD(ON)

= 0 ~ 1.5V 100 µA

ST-BY

Single Ended 20 30
Bridge 10 15

THD = 10%;

OUT

R

= 4

L

VS = 14.4V, Bridge 36 40 W

O(MAX)

VS = 13.7V, Bridge 32 35 W

O(EIAJ)

Bridge 23 25
Single Ended 6.5 7

Single Ended, R

Single Ended, P
Bridge, P

= 0.1 ~ 10W 0.03 0.3

OUT

= 2 12

L

=0.1~4W 0.02

OUT

f = 1KHz Single Ended
f = 10KHz Single Ended
f = 1KHz Bridge
f = 10KHz Bridge
Single Ended 19 20 21 dB
Bridge 25 26 27 dB

PO = 1W 80 90 dB

ST-BY

50 V

3.5 A

V

µV

K

W

%

70
60

55

60

dB
dB
dB
dB

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