Single power chip battery manager PS401 application data

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Overview:
Brief
The PS401 is a fully integrated integrated circuit for battery management. The chip combines a proprietary microcontroller core with a monitoring algorithm and 3D battery model stored on a 12K byte on-chip OTPEPROM with: high precision 15-bit A/D and mixed-signal circuitry; on-chip EEPROM for storing user configuration parameters and "Learning" parameters; industry standard two-wire SMBus v1.1 interface for host communication using the standard SBData v1.1 command set.
Other features include an optional high-precision clock oscillator and temperature sensor, eight universal pins that support charge control or safety control, SOCLED display, or user-programmable digital I/O. Microchip's PS401 delivers the highest data accuracy of a single-chip smart battery in an IC, providing a space-saving solution for a wide range of portable systems while reducing the overall cost of system components.

PS401 internal structure block diagram

Features • Single-Chip Management Solution for Rechargeable Batteries • Embedded Microchip's patented AccuronTM technology for accurate capacity reporting of all rechargeable chemical cells (within 1% error)
• On-chip 128 x 8 electrically erasable read-only memory (EEPROM) that stores user configuration parameters and "learning" parameters; full field programming via the SMBus interface.
• The on-chip integrated sigma-delta A/D converter accurately measures the following data:
- Current measurement by sense resistor (15 bits)
- High voltage (18V) battery components (11-bit) connected directly to the VCELL input pin
- Temperature value from the on-chip sensor or optional external RTD (11-bit)
• Integrated high-precision silicon timebase • 8 individually programmable input/output pins that can be configured to:
- Charge Control I/O
- Safety function I/O
- SOC digital tube output drive pin
- General purpose I/O
• Full implementation of SMBus v1.1's two-wire host interface • Microchip firmware in 12K bytes of user-customizable on-chip OTPEPROM

Pin Description Pin Name Type Description
VDDD, VSSD power digital signal power input, ground
GPIO (0..7) I/O Programmable Digital I/O
SMB-CLK,
SMB-DTA ​​I/O SMBus interface
VC (1..4) I battery voltage input
VDDA, VSSA power regulator output (internal to analog signal power input); ground
RSHP, RSHN I current sense resistor input
VNTC I external RTD input
VREFT O Thermal Resistance Reference Voltage
ROSC I Internal Oscillator Bias Resistor
RSV1-4 I reserved pin
VPP I OTP programming voltage input

PS401 pin diagram

(Please read the PDF for details)

2 Rates Power Meter Socket

Power Meter is a monitoring and testing instrument which determines the power consumption of a connected appliance and the cost of the electricity consumed.

Installing the batteries

Install 3.6V rechargeable Battcrics(NI-MH) . The purpose of the batteries is to store the total electricity and mcinory setting.

Resetting

If an abnormal display appears or the buttons produce no response, the instrument must be reset. To do this,press the RESET button.

Display Mode

Entire LCD can be displayed for about 1 minute and then it automatically gets into Model. To transfer from one mode to the other, press the FUNCTION button.

Mode 1: Time/Watt/Cost Display Display duration(how long) this device connect to power source.LCD on first line shows 0:00 with first two figures mean minutcs (2 figures will occur while occur at 10 min) and the rest shows seconds. After 60mins, it displays 0:00 again with first two numbers meas hour(2 figures will occur at 10hours) and the rest shows minutes. The rest can be done in the same manner which means after 24 hours, it will rc-caculatc. LCD on second line displays current power which ranges in 0.0W~9999W. LCD on third line displays the current electricity costs which ranges in 0.0cost~9999cost. It will keep on O.OOcost before setting rate without other figures.

Mode 2: l ime/Cumulative electrical quantity Display Display duration(how long) this device connect to power source.

LCD on first line shows 0:00 with first two figures mean minutes(2 figures will occur while occur at 10 min) and the rest shows seconds. After 60mins, it displays 0:0() again with first two numbers meas hour(2 figures will occur at 10hours)and the rest shows minutes. The rest can be done in the same manner which means after 24 hours, it will re-caculate. LCD on second line displays current cumulative electrical quantity which ranges in 0.000K WH 〜 9999KWII without other figures. LCD on third line displays''DAY''- "1 "will be showed on numerical part(thc other three figures will be showed at carry) which means it has cumulated electrical quantity for 24hours(one day). The rest can be done in the same manner untial the maximal cumulative time of 9999 days.

Mode 3: Time/Voltage/Frequency Display LCD on first line displays the same as Mode 1 dones. LCD on second line displays current voltage supply (v) which ranges in 0.0V~9999V .LCD on third line displays current frequency (HZ) which ranges in 0.0HZ~9999HZ without other figures.

Mode 4: Time/Current/Power Factor Display LCD on first line displays the same as Mode 1 dones.

LCD on second line displays load current which ranges in 0.0000A~9999A. LCD on third line displays current power factor which ranges in 0.00PF 〜 1 .OOPF without other figures.

Mode 5:Time/Minimum Power Display LCD on first line displays the same as Mode 1 clones. LCD on second line displays the miniinum power which ranges in 0.0W~9999W. LCD on third line displays character of "Lo" without other figures.

Mode 6: I,ime/Maximal Power Display LCD on first line displays the same as Mode 1 dones. LCD on second line displays the maximal power which ranges in 0.0W~9999W. LCD on third line displays character of "Hi" without other figures.

Mode 7: Time/Price Display LCD on first line displays the same as Mode 1 dones. LCD on third line displays the cost which ranges in O.OOCOST/KWH 〜 99.99COST/KWH without other figures.
Overload Display: When the power socket connects the load over 3680W, LCD on second line displays the"O VER LOAD" with booming noise to warn the users,( 1918935, 60470643, 60469303,selectable choice)
Supplemental informations:
1: Except tt OVERLOAD , ' interface, LCD on first line display time in repitition within 24hours.
2: LCD on first line, second line or third line described in this intruction take section according to two black lines on LCD screen. Here it added fbr clarified purpose.
3. Mode 7 will directly occur while press down button "cost".
4. [UP"&''Down" are in no function under un-setting mode.
Backlight Mode:
Connect to AC power,backlight im mediately light,if not press any button,backlight will went off in 15 seconds.
When press any of the buttonsbacklight start light again. (Backlight only light when it connect to AC power,backlight cannot light if use battery)
Setting Mode
1. Electricity price setting
After keeping COST button pressed lasting more than 3 seconds(LCD on third line display system defaults price, eg O.OOCOST/KWH ),the rendered content begins moving up and down which means that the device has entered the setting mode. Then press FUNCTION button to change selection and press UP/DOWN to set what you want. (On pressing once, the figure after domical point will increase or decrease accordingly. On pressing and hold-on, figures after demical point will increase or decrease slowly in 2 seconds while figures change quickly when hold-on time exceeds 2 seconds. When hold-on time reaches 10 seconds or more, the figures after demical point will stop while the figures before demical point begin to increasing or decreasing.) After that, press FUNCTION fbr swithing, then press [UP'nd "DOWN" button again to set value which ranges in OO.OOCOST/KWH 〜 99.99COST/KWH. After setting all above, press COST to return to Mode7 or it will automatically return to Mode7 without any pressing after setting with data storage.

Power Meter Double Rates, Power Meter Two Rates, Cost Rate Socket, Power Meter Cost Rate, Energy Meter Cost Rate, Cost Socket, Cost Plug

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