TDA7850AH STMicroelectronics, TDA7850AH Datasheet

no-image

TDA7850AH

Manufacturer Part Number
TDA7850AH
Description
IC AMP QUAD BRIDGE FLEXIWATT25
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TDA7850AH

Output Type
4-Channel (Quad)
Max Output Power X Channels @ Load
85W x 4 @ 2 Ohm
Voltage - Supply
8 V ~ 18 V
Features
Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Package / Case
25-Flexiwatt (bent and staggered leads)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7850AH
Manufacturer:
FOX
Quantity:
1 000
Features
Protections:
Table 1.
November 2008
High output power capability:
– 4 x 50 W/4 Ω max.
– 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
– 4 x 80 W/2 Ω max.
– 4 x 55 W/2 Ω @ 14.4 V, 1 kHz, 10 %
MOSFET output power stage
Excellent 2 Ω driving capability
Hi-fi class distortion
Low output noise
Standby function
Mute function
Automute at min. supply voltage detection
Low external component count:
– Internally fixed gain (26 dB)
– No external compensation
– No bootstrap capacitors
On board 0.35 A high side driver
Output short circuit to GND, to V
load
Very inductive loads
Overrating chip temperature with soft thermal
limiter
Output DC offset detection
Load dump voltage
Fortuitous open gnd
Reversed battery
TDA7850AH
Order code
TDA7850A
Device summary
4 x 50 W MOSFET quad bridge power amplifier
s
, across the
Flexiwatt27 (horizontal
Flexiwatt27 (vertical)
Package
Rev 3
Description
The TDA7850A is a breakthrough MOSFET
technology class AB audio power amplifier in
Flexiwatt27 package designed for high power car
radio. The fully complementary P-Channel/N-
Channel output structure allows a rail to rail
output voltage swing which, combined with high
output current and minimized saturation losses
sets new power references in the car-radio field,
with unparalleled distortion performances.
The TDA7850A integrates a DC offset detector.
ESD
(horizontal)
Flexiwatt27
Flexiwatt27
(vertical)
TDA7850A
Packing
Tube
Tube
www.st.com
1/16
1

Related parts for TDA7850AH

TDA7850AH Summary of contents

Page 1

... Load dump voltage ■ Fortuitous open gnd ■ Reversed battery Table 1. Device summary Order code TDA7850A TDA7850AH November 2008 MOSFET quad bridge power amplifier ■ ESD Description , across the s The TDA7850A is a breakthrough MOSFET technology class AB audio power amplifier in Flexiwatt27 package designed for high power car radio ...

Page 2

Contents Contents 1 Block diagram and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Block diagram . ...

Page 3

TDA7850A List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5

TDA7850A 1 Block diagram and application circuit 1.1 Block diagram Figure 1. Block diagram ST-BY MUTE IN1 0.1μF IN2 0.1μF IN3 0.1μF IN4 0.1μF 1.2 Standard test and application circuit Figure 2. Standard test and application circuit ST-BY MUTE IN1 ...

Page 6

Pin description 2 Pin description Figure 3. Pin connections (top view) 6/16 TAB 1 OFF DET PW-GND OUT2- ST-BY OUT2 OUT1- PW-GND OUT1+ SVR IN1 IN2 Vertical S-GND IN4 IN3 AC-GND OUT3+ PW-GND OUT3 OUT4+ MUTE ...

Page 7

TDA7850A 3 Electrical specifications 3.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Operating supply voltage supply voltage S (DC) V Peak supply voltage (for ms) S (pk) Output peak current I ...

Page 8

Electrical specifications Table 4. Electrical characteristics (continued) (Refer to the test and application diagram °C; unless otherwise specified). amb Symbol Parameter P Output power o (1) P Max. output power o max. THD Distortion e Output ...

Page 9

TDA7850A Table 4. Electrical characteristics (continued) (Refer to the test and application diagram °C; unless otherwise specified). amb Symbol Parameter Offset detector (Pin 26) V Mute voltage for DC offset M_ON detection enabled V M_OFF V ...

Page 10

Electrical specifications Figure 8. Distortion vs. output power = 2 Ω THD (%) 14 2Ω KHz 0 KHz 0.01 0.001 0 ...

Page 11

TDA7850A Figure 14. Power dissipation and efficiency vs. output power (R P (W) tot 14 4Ω KHz SINE ...

Page 12

Application hints 4 Application hints Ref. to the circuit of 4.1 SVR Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF time sequence and, consequently, plays an essential role in the pop optimization during ON/OFF ...

Page 13

TDA7850A 5 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK packages. ECOPACK is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related ...

Page 14

Package information Figure 20. Flexiwatt27 (horizontal) mechanical data and package dimensions DIM. MIN. A 4. 0.37 F (1) G 0.80 G1 25.75 H (2) 28. (2) 21.64 L1 10.15 L2 (2) ...

Page 15

TDA7850A 6 Revision history Table 5. Document revision history Date 09-Oct-2007 12-Sep-2008 07-Nov-2008 Revision 1 Initial release. 2 Updated the values of V Modified max. values of the THD distortion in 3 characteristics on page 8. Revision history Changes and ...

Page 16

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

Related keywords