Datasheet

TPS2363

www.ti.com

SLUS680B –JANUARY 2006–REVISED JANUARY 2010

UV_INT: This bit indicates the UVLO condition on the main supplies only. The status of this bit depends on the

conditions on main enable pins or the main enable bits in the control register. If the main supplies are disabled,

this bit is 0.

• 1 – UVLO fault. (and supplies are enabled)

• 0 – No UVLO fault. Supplies are above UVLO thresholds.

When using SMBUS, this bit is reset using the ECHO reset condition.

OT_INT : This indicates the TSHUT2 condition on the die.

• 1 – Die temperature > 160°C.

• 0 – Die temperature < 160°C.

When using SMBUS, this bit is reset using echo reset condition.

Table 11. Function (07h) : Default : 0dh

ILIM_AU XB ILIM_AUXA PWROFFB PWROFFA ILIM_MAINB ILIM_MAINA RSVD TI*

R/W R/W R R R/W R/W R 1

Valid write commands:

0dh – Default state. Enable normal current limit on A and B, lower current limits on VAUXA/B 01, 05, 09, 4d, 41,

45, 49, 81, 85, 89, 8d, c1, c5, c9, cd

Valid read commands: all combinations except 00h.

ILIM_AUX_B: This bit controls the level for current limit on VAUX – B *

• 1 – High current limit (800 – 1500 mA).

• 0 – Low current limit (400 – 800 mA).

ILIM_AUX_A: This bit controls the level for current limit on VAUX – A *

• 1 – High current limit (800 – 1500 mA)

• 0 – Low current limit (400 – 800 mA

*The output current mode is determined by pins AUXHIA/B ORed with the ILIM_AUX_A/B. If AUXHIA/B is pulled

up ILIM_AUX_A/B cannot select low current mode.

PWROFF_B: Indicates the power off condition on channel B.

• 1 – Outputs are < 100 mV on VAUXB & B channel main supplies.

• 0 – At least one output is > 100 mV on VAUXB & B channel main supplies.

PWROFF_A: Indicates the power off condition on channel A

• 1 – Output is < 100 mV on VAUXA & A channel main supplies

• 0 – At least one output is > 100 mV on VAUXA & A channel main supplies.

ILIM_MAIN_B (active low): This bit indicates whether current limit is enabled on the main supplies for channel B.

• 1 – Fast trip and normal current limit are enabled. (This is the default mode)

• 0 – Fast trip is enabled, but the current limit is disabled.

ILIM_MAIN_A (active low): This bit indicates whether current limit is enabled on the main supplies for channel A.

• 1 – Fast trip and normal current limit are enabled. (This is the default mode)

• 0 – Fast trip is enabled, but the current limit is disabled.

– TI – 1 indicates this is the TI TPS2363 and that this is a valid register.

Product Folder Link(s): TPS2363