Datasheet nPM1100 (Nordic Semiconductor) - 4

link to page 2 link to page 3 link to page 6 link to page 7 link to page 7 link to page 7 link to page 8 link to page 8 link to page 8 link to page 9 link to page 10 link to page 10 link to page 10 link to page 11 link to page 11 link to page 11 link to page 11 link to page 12 link to page 13 link to page 14 link to page 14 link to page 14 link to page 15 link to page 15 link to page 15 link to page 16 link to page 16 link to page 16 link to page 16 link to page 17 link to page 19 link to page 19 link to page 20 link to page 21 link to page 21 link to page 21 link to page 21 link to page 22 link to page 22 link to page 23 link to page 23 Contents nPM1100. ii Feature list. iii 1 Revision history. 6 2 About this document. 7 2.1 Document status . 7 2.2 Core component chapters . 7 3 Product overview. 8 3.1 Block diagram . 8 3.1.1 In circuit configurations . 8 3.2 System description . 9 3.3 Power-on reset (POR) and brownout reset (BOR) . 10 3.4 DPPM — Dynamic power-path management . 10 3.5 Using Ship mode . 10 3.6 Thermal protection . 11 3.7 Battery considerations . 11 3.8 Charging and Error LED drivers . 11 3.9 System electrical parameters . 11 3.10 System efficiency . 12 4 Absolute maximum ratings. 13 5 Recommended operating conditions. 14 5.1 Dissipation ratings . 14 5.2 WLCSP light sensitivity . 14 6 Core components. 15 6.1 SYSREG — System regulator . 15 6.1.1 USB port detection and VBUS current limiting . 15 6.1.2 SYSREG resistance and output voltage . 16 6.1.3 VBUS overvoltage and undervoltage protection . 16 6.1.4 VBUS disconnect . 16 6.1.5 Electrical parameters . 16 6.1.6 Electrical characteristics . 17 6.2 CHARGER — Battery charger . 19 6.2.1 Charging cycle . 19 6.2.2 Battery detection and UVLO . 20 6.2.3 Termination voltage (VTERMSET) . 21 6.2.4 Termination and trickle charge current . 21 6.2.5 Charge current limit (ICHG) . 21 6.2.6 Battery thermal protection using NTC thermistor (NTC) . 21 6.2.7 Charger thermal regulation . 22 6.2.8 Charger error conditions . 22 6.2.9 Charging indication (CHG) and charging error indication (ERR) . 23 6.2.10 DPPM — Dynamic power-path management . 23 4445_367 v1.0 iv 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