PS501 datasheet(29/42 Pages) MICROCHIP

29 / 42 page

 2004 Microchip Technology Inc.

DS21818C-page 29

PS501

PrechargeCurr

65535

100

Precharge current required. Posted to SBData

ChargingCurrent during precharge conditions.

PrechargeMax

65535

500

Maximum precharge current allowed. When exceeded under

precharge conditions, SBData ChargingCurrent is set to

zero.

PrechargeTemp

255

Precharge temperature, Coded value = (Celsius * 10 + 200)/4.

This is the temperature under which precharging should occur.

PrechargeVCell

65535

2500

Precharge cell voltage. This is the voltage under which

precharging should occur.

SOCThreshold

255

125

Second EOC trigger based on State-Of-Charge,

100 = 100%. A second End-Of-Charge trigger is built into the

PS501, such that if the State-Of-Charge exceeds a certain

value, End-Of-Charge will be forced, even if the taper or

pulse current was not detected. When State-Of-Charge

reaches SOCThreshold, then End-Of-Charge will trigger.

StableCurr

255

EOC trigger current deviation level. In order to prevent

current spikes from causing a premature taper current trig-

ger, the average current and the instantaneous current must

be within StableCurr of each other for the End-Of-Charge to

trigger on the taper current.

TaperCRate

255

Upper limit EOC taper current based on temperature,

TaperCRate = 64/1C. Example: If 1C = 2200 and

TaperCRate = 3, then the upper limit for taper window is

3/64 * 2200 = 103 mA.

TaperLow

255

Lower limit EOC taper current, TaperLow = 64/1C.

Example: If 1C = 2200 and TaperLow = 1, then the lower

limit for taper window is 1/64 * 2200 = 34 mA.

TaperTemp

255

125

Temperature corresponding to TaperCRate byte,

TaperTemp = (temp. °C * 10 + 200)/4.

Example: TaperTemp = 100 [(100 * 4 – 200)/10 = 20°C].

TABLE 9-4:

CHARGE CONTROL (CONTINUED)

Parameter

Name

Bytes

Lower

Limit

Upper

Limit

Typical

Value

Operational Description

PS501 датащи(PDF) 29 Page - Microchip Technology

PS501 датащи(HTML) 29 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

датащи скачать

ссылки URL