DS1650 Datasheet, PDF (4/26 Pages) National Semiconductor (TI) – Quad Differential Line Receivers

RT1650
Pin No. Pin Name I/O
Pin Function
D6
F6
E1, H4,
H5
E2, E3
G4, G5
CLMP1
CLMP2
GND
NC
O
Open Drain Output for Over-voltage Clamp Protection. Connect a 0.47F
ceramic capacitor between this pin to AC1/AC2. When the RECT voltage
O
exceeds 11.5V, both switches will be turned on and the capacitors will act
as a low impedance to protect the IC from damage.
Analog Ground.
No Connection. Keep this pin as floating. Do not connect this pin to
power input or ground.
E4, F4
VDD1
O
Voltage Supply for Internal Circuit. Connect a 1F ceramic capacitor
between this pin and GND.
E5, F5
F1
VDD2
SCL
O
Voltage Supply for Internal Circuit. Connect a 1F ceramic capacitor
between this pin and GND.
I
I²C Compatible Series-Clock Input for internal register/MTP access.
F2
SDA
I/O I²C Compatible Series-Data Input/Output for internal register/MTP access.
F3
GPIO
I/O General Purpose Input/Output.
H1
CHG
O
Open-Drain Indicator Output. When the output regulator is enabled, this
pin is pulled to low.
Enable Control Output for External P-FET connecting ADD and OUT. This
H2
ADEN
O
pin is pulled to the higher of OUT and ADD when turning off the external
FET. This voltage tracks approximately 4V below ADD when voltage is
present at ADD.
H3
ADD
Adapter Power Detection Input. Connect this pin to the adapter input.
I
When a voltage is applied to this pin, wireless power is disabled and
ADEN is pulled low. If not used, this pin should be connected to ground.
G1
TS
Temperature Sense Input. Connect a NTC between this pin and GND for
temperature sensing. If the temperature sensing function is not desired,
I
connect a 24k resistor to GND. Host side can control this pin to send end
power transfer (EPT) to the transmitter: pull-low for EPT fault; pull-up for
EPT termination.
Operation Mode Control Input. These two pins are used to set power
G2
MODE0
I
source operation mode.
[MODE0, MODE1] = [0, 0]. Auto mode. Adapter power prior.
[MODE0, MODE1] = [0, 1]. Wireless power mode.
G3
MODE1
I
[MODE0, MODE1] = [1, 0]. Adapter power mode and OTG mode
[MODE0, MODE1] = [1, 1]. Disable both adapter and wireless powers.
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
www.richtek.com
4
is a registered trademark of Richtek Technology Corporation.
DS1650-00 July 2015