TPS65721 datasheet(32/50 Pages) TI

32 / 50 page

TPS65720

TPS65721

SLVS979 – OCTOBER 2009

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CHGCONFIG1 Register Address: 03h (read/write)

CHGCONFIG1

Bit name and function

I_PRE1

I_PRE0

ICH_SCL1

ICH_SCL0

I_TERM1

I_TERM0

Default

For TPS65720

For TPS65721

Default value loaded by:

UVLO/R

Read/write

R/W

Bit 7..6

I_PRE1..I_PRE0 (Pre-charge current factor):

00 = 5% of value defined with ICH_SCL1, ICH_SCL0

01 = 10% of value defined with ICH_SCL1, ICH_SCL0

10 = 15% of value defined with ICH_SCL1, ICH_SCL0

11 = 20% of value defined with ICH_SCL1, ICH_SCL0

Bit 5..4

ICH_SCL1..ICH_SCL0 (charge current scaling factor):

00 = 25% of value defined with ISET resistor; safety timer will time out at 2x SFTY_TMR[0,1]

01 = 50% of value defined with ISET resistor; safety timer runs at its nominal time defined in

SFTY_TMR[0,1]

10 = 75% of value defined with ISET resistor; safety timer will time out at 0.66x SFTY_TMR[0,1]

11 = 100% of value defined with ISET resistor; safety timer will time out at 0.5x SFTY_TMR[0,1]

Bit 3..2

I_TERM1..I_TERM0 (termination current scaling factor):

00 = 5% of value defined with ICH_SCL1, ICH_SCL0

01 = 10% of value defined with ICH_SCL1, ICH_SCL0

10 = 15% of value defined with ICH_SCL1, ICH_SCL0

11 = 20% of value defined with ICH_SCL1, ICH_SCL0

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TPS65721 Datasheet(PDF) 32 Page - Texas Instruments