Datasheet

TPS65720
TPS65721
www.ti.com
SLVS979 OCTOBER 2009
CHGCONFIG0 Register Address: 02h (read/write)
CHGCONFIG0 B7 B6 B5 B4 B3 B2 B1 BO
Bit name and function VSYS1 VSYS0 AC input AC input TH_LOOP DYN_TMR TERM_EN CH_EN
current1 current0
Default
For TPS65720 0 1 1 0 1 1 1 1
For TPS65721 1 0 1 0 1 1 1 1
Default value loaded by: UVLO/R UVLO/R UVLO/R UVLO/R UVLO/R UVLO/R UVLO/R UVLO/R
Read/write R/W R/W R/W R/W R/W R/W R/W R/W
Bit 7..6 VSYS1..VSYS0:
00 = the output voltage of the power path at pin SYS tracks the battery voltage;
VSYS=VBAT+200mV (Vbat>3.3V); VSYS=3.4V (VBAT</=3.3V); V_DPPM=1 is forced in this case
01 = the output voltage of the power path at pin SYS is regulated to 4.4V
10 = the output voltage of the power path at pin SYS is regulated to 5.0V
11 = the output voltage of the power path at pin SYS is regulated to 5.5V
Bit 5..4 AC input current1.. AC input current0:
00 = 100mA, input voltage DPPM enabled
01 = 500mA, input voltage DPPM enabled
10 = 500mA, input voltage DPPM disabled
11 = USB suspend mode; standby
Bit 3 TH_LOOP:
0 = the thermal loop is disabled
1 = the thermal loop is enabled and the charge current is reduced if the temperature exceeds 125°C
Bit 2 DYN_TMR (dynamic timer function):
0 = safety timers run with their normal clock speed
1 = clock speed for the safety timers is reduced based on the actual charge current if DPPM or
thermal loop is active
Bit 1 TERM_EN (charge termination enable):
0 = charge termination will not occur and the charger will always be on
1 = charge termination enabled based on timers and termination current
Bit 0 CH_EN:
0 = the charger is disabled
1 = the charger is enabled
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Product Folder Link(s): TPS65720 TPS65721