Datasheet AP43770 (Diodes) - 2

AP43770 Typical Applications Circuit
CY 1 F1 L 2 T1 R25 Q3 CON1 BD1 Vo L1 C1 C 2 C5 R11 AC D+ R24 C3 C4 R10 D - NTC1 D5 R19 C9 CC1 CC2 Q2 GND

R2
U3 T
C12 R26 D6 DRISR VCC C10
C
R13
SR IC
R14 R15 VDET GND
U
R20 D7 VDD R27 AREF
D
R12 C11 Q1
O
R6 VIN_PS ISENP PGND PWR_ENB VBUS DEM C13 VCC-IN GATE
R
DP
P
R7 HV AGND
U4
DN
U1
SENSE
AP43770
R4 CTRL R18 CC1
W PWM IC
R8 C6 VFB IFB VFB_OUT CC2 TS V5V V18V
E
VCC RT1
N
GND FB U2 C17 C19 R16 RT2 C20 C21 C16 C18 C8 C7 R21 R 22
Pin Descriptions Pin Number Pin Name Description
1 V5V LDO5V Output, 10µF to GND 2 IFB CC Input. Negative Node of CC OPAM for Photocoupler 3 VFB CV Input. Negative Node of CV OPAM for Photocoupler 4 AGND Ground 5 DP USB D+ Input 6 DN USB D- Input 7 CC1 Type-C_CC1 8 CC2 Type-C_CC2 9 V18V LDO1.8V Output, 0.1µF to GND 10 PGND Ground 11 VBUS VBUS Terminal for Discharge Path External PMOS Gate Driver. To Control External MOS Switch: 12 PWR_ENB 0: To Enable VBUS Voltage 1: Disconnect VBUS 13 VIN_PS High Voltage Power Input (VMAX = 32V) 14 ISENP Input Current Sense Positive Node 15 TS Source Current (100µA) to External NTC Sensor for External OTP (Over Temperature Protection) 16 VFB_OUT CC / CV Output. Open-Drain Output for Photocoupler (For Example, TL431)

AP43770 2 of 9 April 2019 Document number: DS41284 Rev. 5 - 2
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