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Devices for SW Power Supply
25
3) LCD-Backlight Inverter: ExPD
[TND3xx Use Example: MOSFET Driver]
Half-Bridge MOSFET Full-Bridge MOSFET Push-Pull MOSFET
N1
P1
V
DD
GND
TND3xx
CCFL
CCFL
N1
P1
N2
P2
V
DD
GND
TND3xx
TND3xx
V
DD
GND
CCFL
N1
V
DD
GND
TND3xx
N2
[TND3xx Use Example: High-side FET Drive, Various Applications]
12V Power Supply Variation 24V Power Supply Variation
N1
P1
12V
GND
TND3xx
N1
P1
12V
GND
N
GND
TND3xx
TND3xx
N1
P1
24V 24V
12V
4) PDP Sustain Driver: ExPD
[TND5xx, TND3xx Use Example]
TND5XX
TND3XX
R1
R2
R3
R5
R6
R4
PDP Panel
Vp
Cp
D1
D2
D3
C3
C0
HIN
LIN
SD
V
DD
V
DD
INB
INA
VH
VL
HFG
LOUT
GND
HOUT
OUTA
OUTB
GND
Control IC
5) Air conditioner fan motor drive: ExPD
[TND512MD Use Example]
1
LB11696V
1
C1
1000μF
C3
10μF
Z3
DZD6.8
C2
104
VM
GND
V
CC
2 34567 8
16
C6
682
C5
682
C4
682
1.1kΩ
470Ω
CTL
RD
PWMIN HP
F/R
R21
10kΩ
R23
100kΩ
C8
104
C7
182
R24
20kΩ
C9
4.7μF
J4 J5
R24
20kΩ
T1
C16
104
UOUT
T2
C23
472
T4
C17
104
C10
105
C11
105
C13
105
C12 105
D1D2
D3
VOUT
T4
C24
472
T5
C18
104
WOUT
T6
C25
472
R8 R7 R9 R10 R11 R12 R4
J6 J7
C19
104
C21
104
R22
100kΩ
15 14 13 12 11 10 9
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30
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T1 to T6: 2SK2624
D1 to D3: DFD05TC
TND512MD