Datasheet TCPP01-M12 (STMicroelectronics) - 14

TCPP01-M12 Typical USB-C battery powered application Figure 19. 15 W sink applications, with battery and general purpose MCU (for example: STM32 or STM8)
When the power delivery protocol is not used, the TCPP01-M12 is used for protection against defective charger, ESD protection and dead battery management. The MCU can be an STM8 or any STM32 featuring at least 3 ADCs. The power profile is defined by the pull-down resistors on CC lines on the Sink side and pull-up resistors on the Source side. Cf p:47/56 of AN5225 “USB Type-C™ Power Delivery using STM32xx Series MCUs and STM32xxx Series MPUs”.(AN5225). Note: In dead battery condition the sequence below applies: • TCPP01-M12 dead battery present clamp (1.1 V) on CC1 and CC2 lines • The source detects the clamp presence and applies 5 V on VBUS • The N-channel MOSFET (T1: STL11N3LLH6) switches to ON state and supplies the application's power management with 5 V • The MCU wakes-up and applies 3.3 V on GPIO1: this wakes up the TCPP01-M12 • The TCPP01-M12 removes its clamp on the CC lines so that ADC1 or ADC2 can sense the SOURCE power capability with the voltage across R5 or R6 (both resistors are needed)
DS12900
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Rev 1 page 14/25
Document Outline Cover image Product status / summary Features Applications Description 1 Pinout and functions 2 TCPP01-M12 simplified internal block diagram 3 Characteristics 4 Typical electrical characteristics curves 5 Application 5.1 General information 5.2 Electrical hazards related to USB Type-C 5.2.1 CC lines short to VBUS 5.2.2 Defective charger 5.2.3 Electrostatic discharge (ESD) 5.3 USB Type-C protection 5.4 USB charging system scalability 5.5 How to handle dead battery (DB) condition with the TCPP01-M12 5.6 Application example for USB type-C power delivery for sink (consumer), PPS compliant, without battery 5.6.1 ESD capacitor (C3) 5.6.2 CC line capacitance (C1, C2) 5.6.3 Sense resistor (R1, R2) 5.6.4 N-channel MOSFET (T1) 5.6.5 Complementary products for USB dataline protection for pins DP, DM, SSRX, SSTX 5.7 Typical USB-C battery powered application 5.8 Typical USB-C source application 5.9 Sink-source application example based on STM32G0 (with two UCPD ports) 6 PCB design recommendations 7 Package information 7.1 QFN12 package information 8 Ordering information Revision history