Datasheet nPM1100 (Nordic Semiconductor) - 8

3 Product overview This chapter contains an overview of the main features found in nPM1100. 3.1 Block diagram The block diagram illustrates the overall system. VBUS SYSREG VINT VSYS D- D+ System DEC ISET regulator SW VBAT VOUTB BUCK VOUTBSET0 NTC DC/DC VOUTBSET1 + regulator MODE PVSS AVSS CHARGER BATTERY PACK VTERMSET 400 mA Li-Ion CHG charger ICHG ERR SHPACT SHPHLD Figure 2: Block diagram 3.1.1 In circuit configurations The device is configurable for different applications and battery characteristics via input pins. Static input pins must be configured before power-on reset. Dynamic input pins may be modified during operation under conditions described in references. 4445_367 v1.0 8 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