AXP853T-dat

AXP853T Battery Support Summary

The AXP853T does not support battery charging. Unlike the AXP2101, which is a battery-management PMIC, the AXP853T is a system-rail PMIC designed to provide high-current power distribution for multi-core processors.

Feature	AXP853T	AXP2101
Integrated Charger	No	Yes (1.5A Buck Charger)
Fuel Gauge	No	Yes (E-Gauge™ 3.0)
Battery Pins	No (System VIN only)	Yes (VBUS, BAT, TS)
Primary Focus	Complex Power Sequencing	Battery Life & Charging

Design Note: If your project requires a battery, you must use a standalone charger IC (e.g., TP4056 or BQ24195) to feed power into the AXP853T system input.

specs

The AXP853T is a highly integrated Power Management IC (PMIC) from X-Powers, designed for high-performance multi-core system applications. Compared to the AXP2101, the AXP853T is a more robust solution with significantly more output channels, making it suitable for complex SoC (System on Chip) environments such as industrial control, in-vehicle infotainment, and commercial displays.

Key Specifications & Features

• Total Power Channels: 23 channels (including 6 DCDCs and 16 LDOs).
• DCDC Converters (6 Channels):
  • DCDC1: 1.5V ~ 3.4V, up to 2A.
  • DCDC2 & DCDC3: 0.5V ~ 1.54V, up to 3.5A each (supports Dual-phase mode for higher current).
  • DCDC4: 0.5V ~ 1.54V, up to 2A.
  • DCDC5: 0.8V ~ 1.84V, up to 2A.
  • DCDC6: 0.5V ~ 3.4V, up to 2A (supports dual-phase with DCDC4).
  • Dynamic Voltage Scaling (DVS): Available on DCDC2 through DCDC5.
• LDOs & Switches (17 Channels):
  • RTCLDO: 1.8V/3.3V, 100mA (for real-time clock).
  • ALDO (1-5): 0.7V ~ 3.3V, up to 600mA.
  • BLDO (1-5): 0.7V ~ 3.3V, up to 600mA.
  • CLDO (1-4): 0.7V ~ 4.2V, up to 300mA.
  • CPUSLDO: 0.7V ~ 1.4V, 200mA (Source/Sink, derived from DCDC5).
  • Integrated Switch: 0.1Ω internal switch for DCDC1 output (up to 1A).
• Communication: Uses TWSI (Two-Wire Serial Interface) supporting Standard (100kHz) and Fast (400kHz) modes.
• Package: QFN-52-EP (6mm x 6mm).

Protection & Monitoring

The AXP853T includes comprehensive system safety features:

• Voltage Monitoring: Over-Voltage (OVP) and Under-Voltage (UVP) protection.
• Thermal Management: Built-in temperature sensor with Over-Temperature Protection (OTP).
• Customization: Supports user-defined start-up sequences and default voltages for specific SoC requirements.

Comparison: AXP853T vs. AXP2101

Feature	AXP2101	AXP853T
Total Channels	15	23
DCDC Rails	4	6
Max DCDC Current	2A	3.5A (Dual-phase support)
Primary Use	Portable/IoT devices	Multi-core SoCs / Industrial
Charging	Integrated 1.5A charger	Specialized for rail management

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