Diodes AP33772S I2C - Pin Descriptions

AP33772S I2C USB PD Sink Controller
EVB User Guide
AP33772S EVB User Guide
Rev. 2.0
4 of 34
www.diodes.com
July 2024
© 2024 Copyright Diodes Incorporated. All Rights Reserved.
2.2 Pin Descriptions
Pin No
Pin Name
Type (Notes)
Pin Function
1
ISENP
AHV
Current Sense Positive Node, connect to the positive node of the external current sensing
resistor
2
NC
-
No Connection
3
GND
GND
Ground
4
SDA
DIO
I2C Data, need to be pulled up externally
5
SCL
DI
I2C Clock, need to be pulled up externally
6
FLIP
DO
Flip indicator of Type-C plug. LOW: CC1 detected; HIGH: CC2 detected
7
NC
-
No Connection
8
LED
DO
LED Indicator Pin, refer to Table 13 for detailed description
9
INT
DO
Interrupt pin is used to inform external MCU. LOW: normal; HIGH: interrupt occured
10
NC
-
No Connection
11
NC
-
No Connection
12
V18
DP
1.8V LDO output for internal use only. Connect a 100nF cap to GND. This pin cannot drive
external load.
13
OTP
AIO
100uA Current Source output for NTC connected to ground; this NTC is used to monitor
temperature variation
14
NC
-
No Connection
15
IFB
AI
For current measurement, a 100nF cap to Ground is suggested
16
CC2
AIO
Type-C Configuration Channel 2 (CC2); the CC2 pin detects, configures, and manages the
connections across a USB Type-C cable
17
CC1
AIO
Type-C Configuration Channel 1 (CC1); the CC1 pin detects, configures, and manages the
connections across a USB Type-C cable
18
DN
AIO
DN of Type-C Connector
19
DP
AIO
DP of Type-C Connector
20
V5V
AP
Output of the internal LDO with VCC as input; a 1μF cap is required to connect this pin to GND.
When VCC is off, V5V pin can be an alternative power path for the AP33772S when provided
with a 5V external power.
21
NC
-
No Connection
22
VOUT
AHV
Terminal for VOUT monitoring
23
PWR_EN
AHV
NMOS Switch gate control to switch the NMOS on or off
24
VCC
AHV
The power supply of the IC; a 1μF cap is required to connect this pin to GND pin
-
EPAD
GND
Exposed pad is suggested to connect to Ground for improved thermal dissipation
Table 1 – Pin Descriptions of the AP33772S PD Sink Controller
Notes:
AHV – Analog High Voltage pin
AP – Power for Analog Circuit and Analog I/O pins, 5.0V operation
AI – Analog Input pin
DP – Power for Digital Circuit operation
AIO – Analog I/O pin with 5.0V operation; CC1/CC2 pins are 3.3V operation
DIO – Digital I/O pin; all are 5.0V operation
DI – Digital input pin; all are 5.0V operation
DO – Digital output pin; all are 5.0V operation