Datasheet nPM1100 (Nordic Semiconductor) - 3

Feature list
Features:
• 400 mA linear battery charger • 1.8 V to 3.0 V, 150 mA step-down buck regulator • Linear charger for lithium-ion/lithium-polymer batteries • Step-down buck regulator with up to 92% efficiency • Adjustable charge current from 20 mA to 400 mA • Automatic transition between hysteretic and pulse width • Selectable termination voltage of 4.1 V or 4.2 V modulation (PWM) modes • Automatic trickle, constant current, and constant voltage charging • Forced PWM mode for clean power operation • Battery thermal protection • Pin-selectable output voltage (1.8 V, 2.1 V, 2.7 V, 3.0 V) • Discharge current limitation • Soft start-up • JEITA compliant • LED drivers for charger state indication • Li-ion/Li-polymer USB battery charger with a high efficiency buck regulator • 5 mA low side LED driver for charging indication • 800 nA - Typical quiescent current • 5 mA low side LED driver for error indication • 460 nA - Shipping mode quiescent current • 2.3 V to 4.35 V battery operating input range • Thermal protection • 2.1x2.1 mm WLCSP package • Input regulator • Suitable for two layer PCB design • USB compatible current limit of 100 mA and 500 mA • 4.1 V to 6.7 V input voltage range for normal operation • 20 V overvoltage protection • Reverse current protection • 3.0 V to 5.5 V system voltage output • USB port detection supporting the following types: • SDP • CDP/DCP
Applications:
• Advanced wearables • Interactive entertainment devices • Health/fitness sensor and monitor devices • Remote controls • Advanced computer peripherals and I/O devices • Gaming controllers • Mouse • Keyboard • Multi-touch trackpad 4445_367 v1.0 iii Document Outline Contents nPM1100 Feature list Revision history About this document 2.1 Document status 2.2 Core component chapters Product overview 3.1 Block diagram 3.1.1 In circuit configurations 3.2 System description 3.3 Power-on reset (POR) and brownout reset (BOR) 3.4 DPPM — Dynamic power-path management 3.5 Using Ship mode 3.6 Thermal protection 3.7 Battery considerations 3.8 Charging and Error LED drivers 3.9 System electrical parameters 3.10 System efficiency Absolute maximum ratings Recommended operating conditions 5.1 Dissipation ratings 5.2 WLCSP light sensitivity Core components 6.1 SYSREG — System regulator 6.1.1 USB port detection and VBUS current limiting 6.1.2 SYSREG resistance and output voltage 6.1.3 VBUS overvoltage and undervoltage protection 6.1.4 VBUS disconnect 6.1.5 Electrical parameters 6.1.6 Electrical characteristics 6.2 CHARGER — Battery charger 6.2.1 Charging cycle 6.2.2 Battery detection and UVLO 6.2.3 Termination voltage (VTERMSET) 6.2.4 Termination and trickle charge current 6.2.5 Charge current limit (ICHG) 6.2.6 Battery thermal protection using NTC thermistor (NTC) 6.2.7 Charger thermal regulation 6.2.8 Charger error conditions 6.2.9 Charging indication (CHG) and charging error indication (ERR) 6.2.10 DPPM — Dynamic power-path management 6.2.11 Electrical parameters 6.2.12 Electrical characteristics 6.3 BUCK — Buck regulator 6.3.1 Output voltage selection (VOUTBSET0, VOUTBSET1) 6.3.2 BUCK mode selection (MODE) 6.3.3 Component selection 6.3.4 Electrical parameters 6.3.5 Electrical characteristics Application 7.1 Schematic 7.2 Supplying from BUCK 7.3 USB port negotiation 7.4 CHG and ERR 7.5 Termination voltage and current 7.6 NTC configuration 7.7 Ship mode 7.8 Battery monitoring and low battery indication Hardware and layout 8.1 Ball assignments 8.2 Mechanical specifications 8.2.1 WLCSP 2.075x2.075 mm package 8.3 Reference circuitry 8.3.1 Configuration 1 8.3.2 Configuration 2 8.3.3 Configuration 3 8.3.4 PCB guidelines 8.3.5 PCB layout example Ordering information 9.1 IC marking 9.2 Box labels 9.3 Order code 9.4 Code ranges and values 9.5 Product options Legal notices