SN6501 Datasheet, PDF (17/26 Pages) Texas Instruments – Transformer Driver for Isolated Power Supplies

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V_S
3.3 V
SN6501
SLLSEA0C – FEBRUARY 2012 – REVISED MARCH 2012
10 µF ₂
Vcc
3
D2
SN6501
1
D1
GND2 GND1
45
1:2.2 ^MBR0520L
MBR0520L
10µF 0.1µF
1
5
IN OUT
TPS76350
3 _{EN GND} 2
ISO 5V
10 µF
ISO-BARRIER
6 MHz
18pF 18pF
0.1 µF*
40 12* 3 37
9*
30
VDDC
OSC0
RST VDD VDDA VBAT
STELLARIS ^CAN0Rx
25
31
7
OSC1
LDO
LM3S5Y36
CAN0Tx
GND GNDA WAKE
26
0.1 µF*
10* 4
32
0.1 µF
0.1 µF
1
8
Vcc1
2
RXD
Vcc2
7
CANH
3 ^ISO1050 6
TXD
CANL
GND1 GND2
4
5
10 W (opt)
10 W (opt)
SM712
* = multiple pins and capacitors omitted for clarity purpose
Figure 41. Isolated CAN Interface
4.7 nF/
2kV
VIN
3.3 V
0.1µF ₂
Vcc
3
D2
1:2.2 ^MBR0520L
SN6501
1
GND ^D1
4,5
10 µF
MBR0520L
10µF 0.1µF
1
5
IN OUT
LP2985-50
3
4
ON BP
GND
2 _10nF
5 VISO
3.3 µF
ISO-BARRIER
0.1µF
0.1µF
2
DVcc
15
5
XOUT
MSP430
UCA0TXD
UCA0RXD
16
6
XIN
F2132
12
P3.1
11
DVss
P3.0
4
0.1µF
0.1µF
1
16
4.7 k
Vcc1
Vcc2
7
10
EN1
EN2
3
14
5 ^{INA ISO7242 OUTA} 12
OUTC
INC
4
INB
13
OUTB
6
OUTD
11
IND
GND1
GND2
2,8
9,15
16
1µF
2
Vcc
1µF
6
VS+
VS-
4.7 k
1 _C1+
C2+ ⁴
1µF ₃ TRS232 ₅ 1µF
C1-
C2-
11
T1IN
14
T1OUT
12
R1OUT
13
R1IN
10 _T2IN
T2OUT ⁷
9 _R2OUT
R2IN ⁸
GND
15
TxD
RxD
RST
CST
ISOGND
Figure 42. Isolated RS-232 Interface
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