Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Nordic nPM1100 EK
Summary of Contents for Nordic nPM1100 EK
- Page 1 EK Hardware v0.8.0 User Guide 4477_012 / 2021-05-27...
-
Page 2: Table Of Contents
....... 5.1 Preparing the nPM1100 EK ...... -
Page 3: Revision History
Revision history Date Description 2021-05-27 First release 4477_012... -
Page 4: Introduction
Introduction The nPM1100 EK is a hardware platform used to evaluate the nPM1100 Power Management Integrated Circuit (PMIC). The key features of the Evaluation Kit (EK) are: • nPM1100 EK PMIC • Lithium-ion/lithium-polymer USB battery charger • High efficiency step-down buck regulator •... -
Page 5: Minimum Requirements
Minimum requirements Before you start, check that you have the required hardware. Hardware requirements • Power supply, USB or connector • Micro-USB 2.0 cable 4477_012... -
Page 6: Kit Content
Kit content The nPM1100 EK consists of hardware, reference design files, and documentation. The EK only comes with the board. You need to provide your own Micro-USB cable. Figure 1: nPM1100 EK Hardware files The hardware design files including schematics, PCB layout files, bill of materials, and Gerber files for the... -
Page 7: Hardware Description
Hardware description The nPM1100 EK allows full flexibility for configuration of the nPM1100 PMIC without having to make any hardware modifications. The EK supports Primary Detection of the USB port type based on the Battery Charging Specification. Alternatively, the current limitation can be controlled manually by a switch. The current limitation switch can only override from a 100–500 mA limit for a Standard Downstream Port (SDP) detection. -
Page 8: Block Diagram
SHPHLD Figure 4: nPM1100 EK block diagram 4.3 Power supply The nPM1100 EK has a flexible and configurable power supply system to allow testing with different power sources and to facilitate accurate power measurements. The power options are: • USB connector J2 (5.0 V) •... -
Page 9: Leds
Hardware description Figure 5: Power supply options 4.4 LEDs The nPM1100 EK has two LEDs for visualizing the status of the nPM1100 battery charger. Both can be disconnected for power consumption measurements. L0603G VSYS L0603G VSYS Figure 6: LED schematic... -
Page 10: Charge Current Limit
Hardware description Switch Function Parameter controlled Charge voltage termination VTERMSET Table 2: Charge voltage termination parameters 4.5.2 Charge current limit SW7 controls the maximum charge current limit. Switch Function Parameter controlled Charge current limit ICHG Table 3: Charge current limit parameters SW7 is a 5-pole dip switch that can select the five defined current limits in the following table. -
Page 11: Buck Regulator Mode
ISET can override the 100 mA current limit when a USB cable is not used or a USB SDP is detected. 4.6 Buttons The nPM1100 EK has two buttons used to control the device. All buttons have series resistors to allow external input to override the onboard buttons. -
Page 12: Ship Mode Disabling
Table 11: Ship mode disabling parameters 4.7 Solder bridge configuration The nPM1100 EK has multiple solder bridges for enabling or disabling functionality on the EK. Changes to the solder bridges are not needed for normal use of the EK. The following table is a complete overview of the solder bridges on the nPM1100 EK. -
Page 13: Measuring Current
Measuring current The nPM1100 EK supports the monitoring of current flowing into the PMIC, to and from the battery, and into the external application . Note: The battery charger includes automatic trickle charge control which introduces restrictions on what current measurement instruments can be used with VBAT. -
Page 14: Preparing For Vbus Current Measurements
Measuring current Figure 7: Prepare the EK for current measurements 5.1.1 Preparing for VBUS current measurements You can prepare the EK for measuring VBUS current based on different scenarios. To prepare the EK: • To use P1 as a probe-point for performing current measurement on VBUS, cut the PCB track shorting solder bridge SB3. -
Page 15: Using An Oscilloscope For Current Profile Measurement
Make sure you have prepared the EK as described in Preparing the nPM1100 EK on page 13. 1. Mount a shunt resistor within the acceptable range on the series resistor footprint for the signal of interest. -
Page 16: Using An Ampere Meter For Current Measurements
• PPK2 GND to nPM1100 EK GND on either P7 or P8 (pin 9) • PPK2 VOUT to nPM1100 EK VBUS on P8 (pin 1) 2. Connect the load (nRF5340 DK in this example) to VOUTB (pin 3) and GND (pin 4) on nPM1100 EK P4. 4477_012... -
Page 17: Measuring Vbat Current
• PPK2 GND to nPM1100 EK GND on either P7 or P8 (pin 9) • PPK2 VOUT to nPM1100 EK VBAT_HF on P4 (pin 2) 2. Connect the load (nRF5340 DK in this example) to VOUTB (pin 3) and GND (pin 4) on nPM1100 EK P4. 4477_012... -
Page 18: Measuring Voutb Current
5.4.3 Measuring VOUTB current The PPK2 is operated in Ampere meter mode for this configuration. 1. Connect the PPK2 to the nPM1100 EK with a 4-pin measurement cable using the following pins: • PPK2 GND to nPM1100 EK pin 4 on P4 •... - Page 19 Measuring current 2. Connect the PPK2 to a computer using a USB cable. 3. Connect the nPM1100 EK to a USB power source using a USB cable. 4. Start the Power Profiler app. 5. Select your PPK2. 6. Select Ampere meter as the mode.
-
Page 20: Glossary
Glossary Dedicated Charging Port (DCP) A downstream port on a device that outputs power through a USB connector but is not capable of enumerating a downstream device. Development Kit (DK) A development platform used for application development. Evaluation Kit (EK) A platform used to evaluate different development platforms. -
Page 21: Acronyms And Abbreviations
Acronyms and abbreviations These acronyms and abbreviations are used in this document. Dedicated Charging Port Development Kit Evaluation Kit PMIC Power Management Integrated Circuit Standard Downstream Port 4477_012... -
Page 22: Recommended Reading
Recommended reading In addition to the information in this document, you may need to consult other documents. Nordic documentation • nPM1100 Product Specification • nPM1100 EK product page 4477_012... -
Page 23: Legal Notices
Nordic Semiconductor ASA customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nordic Semiconductor ASA for any damages resulting from such improper use or sale.
Need help?
Do you have a question about the nPM1100 EK and is the answer not in the manual?
Questions and answers