TDA8954_1 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 01 — 24 December 2009 16 of 46
NXP Semiconductors
TDA8954
2 × 210 W class-D power amplifier
9. Internal circuitry
Table 6. Internal circuitry
Pin Symbol Equivalent circuit
[1]
TDA8954TH TDA8954J
7 1 OSC
11 5 OSCREF
10 4 DIAG1
12 6 DIAG2
13 7 PROT
7 (1)
open: external clock
closed: internal clock
150 μA
010aaa58
V
DD
V
SS
V
SS
11 (5)
2 Ω
010aaa59
0
010aaa591
10, 12
(4, 6)
SGND
13 (7)
010aaa59
2
V
SS
current limiting
50 μA
OCP
1.5 mA28 μA
TDA8954_1 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 01 — 24 December 2009 17 of 46
NXP Semiconductors
TDA8954
2 × 210 W class-D power amplifier
[1] Pin numbers in brackets are for the TDA8954J
4 21 IN2M
5 22 IN2P
8 2 IN1P
9 3 IN1M
6 23 MODE
1 18 VSSA
2 19 SGND
3 20 VDDA
14 8 VDDP1
15 9 BOOT1
16 10 OUT1
17 11 VSSP1
18 12 STABI
20 13 VSSP2
21 14 OUT2
22 15 BOOT2
23 16 VDDP2
Table 6. Internal circuitry …continued
Pin Symbol Equivalent circuit
[1]
TDA8954TH TDA8954J
2 kΩ
2 kΩ
50 kΩ
50 kΩ
SGNDSGND
5, 8
(22, 2)
4, 9
(21, 3)
010aaa593
010aaa594
standby
gain (mute
TFB on
50 kΩ
6 (23)
SGND
V
SS
on)
010aaa59
5
10 V
17, 20
(11, 13)
1 (18)
18 (12)
16, 21
(10, 14)
2 (19)
3 (20)
15, 22
(9, 15)
14, 23
(8, 16)
TDA8954_1 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 01 — 24 December 2009 18 of 46
NXP Semiconductors
TDA8954
2 × 210 W class-D power amplifier
10. Limiting values
11. Thermal characteristics
12. Static characteristics
Table 7. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
ΔV voltage difference V
DD
V
SS
; Standby, Mute modes - 90 V
I
ORM
repetitive peak output current maximum output current limiting; one
channel driven
12 - A
T
stg
storage temperature 55 +150 °C
T
amb
ambient temperature 40 +85 °C
T
j
junction temperature - 150 °C
V
OSC
voltage on pin OSC relative to V
SSA
0 SGND + 6 V
V
pu
pull-up voltage on pins DIAG1 and DIAG2; see Figure 13 0 5 V
V
I
input voltage referenced to SGND; on pins IN1P, IN1M,
IN2P and IN2M
5 +5 V
V
PROT
voltage on pin PROT referenced to voltage on pin VSSA 0 12 V
V
MODE
voltage on pin MODE referenced to SGND 0 8 V
I
I
input current on pins DIAG1 and DIAG2 0 1 mA
V
ESD
electrostatic discharge voltage Human Body Model (HBM) 2000 +2000 V
Charged Device Model (CDM) 500 +500 V
V
PWM(p-p)
peak-to-peak PWM voltage on pins OUT1 and OUT2 - 120 V
Table 8. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction to ambient in free air 40 K/W
R
th(j-c)
thermal resistance from junction to case 0.9 K/W
Table 9. Static characteristics
V
DD
= 41 V; V
SS
=
41 V; f
osc
= 335 kHz; T
amb
= 25
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supply
V
DD
positive supply voltage Operating mode
[1]
12.5 41 42.5 V
V
SS
negative supply voltage Operating mode
[2]
12.5 41 42.5 V
V
th(ovp)
overvoltage protection
threshold voltage
Standby, Mute modes; V
DD
V
SS
85 - 90 V
V
th(uvp)
undervoltage protection
threshold voltage
V
DD
V
SS
20 - 25 V
V
th(ubp)
unbalance protection threshold
voltage
[3]
- 33 - %

TDA8954J/N1,112

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
Audio Amplifiers 2-CH 210 W class-D power amplifier
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet