PS200-I/SS Ver la hoja de datos (PDF) - Microchip Technology

Número de pieza

componentes Descripción

Lista de partido

PS200-I/SS

PowerSmart® Configurable Battery Charger

Microchip Technology 

PS200

TABLE 2-1: PS200 LITHIUM CONFIGURABLE PARAMETERS

Step 1 – Configuration

Parameter Name

# Lower

Bytes Limit

Upper

Limit

Typical

Value

Description

MfgName

— N/A N/A Microchip ASCII value.

DevName

— N/A N/A

PS200 ASCII value.

SeriesCells

1

1

255

4

Number of series connected cells in the battery pack.

Capacity (mAh)

2

0 65535

2000 Full-charge capacity of the battery pack.

PWMFreq

1

7

83

15

LUT value which determines the PWM frequency.

Step 2 – Charging Limits

Parameter Name

# Lower

Bytes Limit

Upper

Limit

Typical

Value

Description

PCVMin (mV)

2

0 65535

2500 Minimum cell voltage required to enable charging with precharge

conditions.

PCVMax (mV)

2

0 65535

3000 Maximum cell voltage required to enable charging with

precharge conditions.

PCCurrent (mA)

2

0 65535

200

Charging current during precharge.

PCTempMin

1

0

255

50

Minimum temperature required to enable charging with

precharge conditions.

PCTempMin value = (temperature °C * 10 + 200)/4;

so typical value of 50 = 0°C.

PCTempMax

1

0

255

175

Maximum temperature required to enable charging with

precharge conditions.

PCTempMax value = (temperature °C * 10 + 200)/4;

so typical value of 175 = 50°C.

PCTime (min)

1

0

255

60

Duration of precharge.

CRVTarg (mV)

2

0 65535

4200 Target cell voltage in current regulation. This is set to the fully

charged voltage of one cell, typically, as specified by the cell

manufacturer.

CRCurrent (mA)

2

0 65536

2000 Charging current during current regulation.

CRTimeMax (min) 1

0

255

90

Current regulation time limit.

VRVrech (mV)

2

0 65536

3780 Voltage regulation recharge cell voltage. Charger will

automatically begin charging if cell voltage of pack falls below

SeriesCells * VRVrech.

VRIMin (mA)

2

0 65536

150

Voltage regulation fully charged current. This is the value of the

taper current or IMIN which will determine that the battery is fully

charged.

VRTimeMax (min) 1

0

255

90

Voltage regulation time limit.

TempMax

1

0

255

200

Maximum temperature required to enable charging during

current regulation and voltage regulation.

TempMax value = (temperature °C * 10 + 200)/4;

so typical value of 200 = 60°C.

DS21891B-page 10

© 2005 Microchip Technology Inc.

Share Link: