TDA8939TH View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA8939TH Datasheet PDF : 21 Pages
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CON1
SUPPLY
1
VDD
+50 V
2
VCC
C1
100 nF
L1
BEAD
V+
C2
1000 µF
(63 V)
R1
10 kΩ
R2
1 kΩ
OUTneg
OUTpos
DIGITAL PWM
CONTROLLER
power stage on/off
overload
R3
10 Ω
C4
100 nF
VDDA1
R5
47 Ω
3
IN1neg 2
R7
47 Ω
IN1pos 4
POWERUP
5
R9 ENABLE
6
47 Ω
R10 DIAGN
7
47 Ω
CGND
8
R11
47 Ω
R13
47 Ω
IN2neg 11
IN2pos 9
1
V+
R4
10 Ω
C5
100 nF
VDDA2
10
C3
470 µF
(63 V)
C6
100 nF
VDDP1
23
TDA8939TH
12 24 20
C8
220 pF
V+
C9
220 pF
C7
100 nF
VDDP2
14
OUT1
21
BOOT1
22
R6
10 Ω
(0.25 W)
L2 (1)
C10 C11(1)
100 nF
STAB1 C13
19
100 nF
STAB2 C14
18
100 nF
15 BOOT2
OUT2
16
13 n.c.
C15
100 nF
L3(1)
C18(1)
17
R14
10 Ω
(0.25 W)
VSSA1 VSSA2
VSSP1 VSSP2
VSSD
C16
220 pF
C17
220 pF
V+
R8
22 Ω
(1 W)
C12
220 nF
CON3
OUTPUT
1
OUTpos
OUTneg 2
R12
22 Ω
(1 W)
C19
220 nF
001aaa628
(1) For 8 Ω BTL and fcorner = 40.2 kHz: L2 = L3 = 27 µH; C11 = C18 = 470 nF.
For 8 Ω BTL and fcorner = 44.5 kHz: L2 = L3 = 22 µH; C11 = C18 = 470 nF.
For 4 Ω BTL and fcorner = 47.7 kHz: L2 = L3 = 10 µH; C11 = C18 = 1 µF.
Fig 8. Typical application diagram using a single (asymmetrical) supply voltage.
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