DS1650 Datasheet, PDF (3/26 Pages) National Semiconductor (TI) – Quad Differential Line Receivers

Typical Application Circuit
USB or
AC Adapter Input
Q1 PMDPB80XP
RT1650
RT1650
ADEN
ADD
OUT
C5
1μF/10V x 1
0.1μF/10V x 1
47nF/50V x 4 ^CS
C_CLAMP1
0.47μF/50V
CLMP1
C_COMM1
22nF/50V
COM1
C_BOOT1
10nF/50V _BOOT1
AC1
CHG
RECT
WPC Standard
12μH Coil
C_D
1.8μF/50V
C_BOOT2
10nF/50V
C_COMM2
22nF/50V
AC2
BOOT2
COM2
C_CLAMP2
0.47μF/50V
CLMP2
C_VDD1
1μF/10V
VDD1
VDD2
SCL
SDA
GPIO
MODE0
MODE1
TS
C_VDD2
1μF/10V
GND PGND
C_OUT
1μF/10V x 1
D1
0.1μF/10V x 1
R4
1.5k
C_RECT
System
10μF/16V x 2 Load
R1
33k
NTC
NCP15WF104F03RC
100k ohm
Note : The component value and the maximum voltage rating is based on the WPC standard transmitter and 5V
adapter application. The customer should modify it depend on the different design and application.
Functional Pin Description
Pin No. Pin Name I/O
Pin Function
A1
BOOT2
O
Bootstrap Supply for Driving the High-side FETs of Synchronous Rectifier.
Connect a 10nF ceramic capacitor from BOOT1 to AC1 and from BOOT2
A6
BOOT1
O
to AC2.
A2 to A5
G6, H6
PGND
Power Ground.
B1 to B3 AC2
B4 to B6 AC1
I
AC Power Input from Receiver Coil.
I
C1 to C5 RECT
O
Output of Synchronous Rectifier. Connect a ceramic capacitor (10F to
22F) between this pin to PGND.
C6
COM1
O
Open-Drain Output for Communication with Transmitter. Connect through
E6
COM2
O
a capacitor to AC1/AC2 for capacitive load modulation.
D1 to D5 OUT
O Power Output of Regulator.
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DS1650-00 July 2015
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