參數(shù)資料
型號(hào): TDA8939
廠商: NXP Semiconductors N.V.
英文描述: Zero dead time Class-D 7.5 A power comparator
中文描述: 零死時(shí)間D類7.5甲功率比較
文件頁(yè)數(shù): 13/21頁(yè)
文件大?。?/td> 99K
代理商: TDA8939
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9
O
R
1
P
T
Z
1
(1) For 8
BTL and f
corner
= 40.2 kHz: L2 = L3 = 27
μ
H; C11 = C18 = 470 nF.
For 8
BTL and f
corner
= 44.5 kHz: L2 = L3 = 22
μ
H; C11 = C18 = 470 nF.
For 4
BTL and f
corner
= 47.7 kHz: L2 = L3 = 10
μ
H; C11 = C18 = 1
μ
F.
Fig 8.
Typical application diagram using a single (asymmetrical) supply voltage.
001aaa628
TDA8939TH
DIGITAL PWM
CONTROLLER
R13
IN2
pos
V
SSA1
V
SSA2
V
SSP1
V
SSD
V
SSP2
47
CGND
IN2
neg
R10
DIAGN
47
R9
ENABLE
47
POWERUP
V
DDA1
V
DDP1
V
DDA2
10
V
DDP2
14
OUT1
BOOT1
OUT
pos
OUT
neg
CON3
OUTPUT
1
STAB1
R7
IN1
pos
47
R5
R2
1 k
R4
10
R6
10
(0.25 W)
R8
22
(1 W)
C12
220 nF
C3
470
μ
F
(63 V)
C9
220 pF
C10
100 nF
C11(1)
L2(1)
L3(1)
C18(1)
C15
100 nF
C13
100 nF
STAB2
BOOT2
OUT2
n.c.
C14
100 nF
V
+
V
+
C8
220 pF
R3
10
R1
10 k
IN1
neg
9
1
12
20
24
17
13
16
15
18
19
22
21
8
11
7
6
5
4
2
3
23
47
C4
C1
100 nF
C2
1000
μ
F
(63 V)
100 nF
C5
100 nF
C6
100 nF
C7
100 nF
R11
47
V
CC
V
+
OUT
neg
OUT
pos
power stage on/off
overload
R14
10
(0.25 W)
C17
220 pF
V
+
C16
220 pF
R12
22
(1 W)
C19
220 nF
2
CON1
SUPPLY
1
V
DD
+
50 V
L1
BEAD
2
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