TDA8939TH Datasheet, PDF (13/21 Pages) NXP Semiconductors – Zero dead time Class-D 7.5 A power comparator

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CON1
SUPPLY
1
V_DD
+50 V
2
V_CC
C1
100 nF
L1
BEAD
V+
C2
1000 µF
(63 V)
R1
10 kΩ
R2
1 kΩ
OUT_neg
OUT_pos
DIGITAL PWM
CONTROLLER
power stage on/off
overload
R3
10 Ω
C4
100 nF
V_DDA1
R5
47 Ω
3
IN1_{neg 2}
R7
47 Ω
IN1_{pos 4}
POWERUP
5
R9 ENABLE
6
47 Ω
R10 DIAGN
7
47 Ω
CGND
8
R11
47 Ω
R13
47 Ω
IN2_{neg 11}
IN2_{pos 9}
1
V+
R4
10 Ω
C5
100 nF
V_DDA2
10
C3
470 µF
(63 V)
C6
100 nF
V_DDP1
23
TDA8939TH
12 24 20
C8
220 pF
V+
C9
220 pF
C7
100 nF
V_DDP2
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)
V_SSA1 V_SSA2
V_SSP1 V_SSP2
V_SSD
C16
220 pF
C17
220 pF
V+
R8
22 Ω
(1 W)
C12
220 nF
CON3
OUTPUT
1
OUT_pos
OUT_{neg 2}
R12
22 Ω
(1 W)
C19
220 nF
001aaa628
(1) For 8 Ω BTL and f_corner = 40.2 kHz: L2 = L3 = 27 µH; C11 = C18 = 470 nF.
For 8 Ω BTL and f_corner = 44.5 kHz: L2 = L3 = 22 µH; C11 = C18 = 470 nF.
For 4 Ω BTL and f_corner = 47.7 kHz: L2 = L3 = 10 µH; C11 = C18 = 1 µF.
Fig 8. Typical application diagram using a single (asymmetrical) supply voltage.