UPD1002 datasheet(15/46 Pages) MICROCHIP

15 / 46 page

 2014 Microchip Technology Inc.

DS00001760B-page 15

UPD1002

Charger Cur-

rent Monitor

IMON

Voltage representation of the charger current. This signal

should be fed by a current sense amplifier tuned to output

3.0 V when 6.0 A is flowing on VBUS. Voltage must not

exceed 5 V on this signal. Refer to Section 3.4, "Voltage/

Current Monitors (VMON/IMON)," on page 29 for addi-

tional information.

Power Supply

Fault Indicator

FAULT_N

OD8

This active low signal can be connected to an external

LED or SoC and is used by the device to indicate power

supply exceptions/failures as determined by the inte-

grated voltage/current monitors. Refer to Section 3.4,

"Voltage/Current Monitors (VMON/IMON)," on page 29

for additional information.

Fault Input

FAULT_IN_N

This active low signal is asserted by the power supplying

device (DC to DC controller or port power controller) to

notify the device when a system fault condition has

occurred. Typically, this signal is used for overcurrent or

overvoltage conditions, but it can be used for any system

related failure. This signal should be debounced to 1 ms.

Note:

The board design must ensure this signal is in

a valid state by the time PPC_PWR_EN or

PD_GOOD asserts.

Power Deliv-

ery Profile

Configuration

Selector 0

CFG_SEL0

AIO

This pin is used in conjunction with CFG_SEL1 to select

the power delivery profile of the device via an externally

connected RC circuit. Refer to Section 3.3, "Configuration

Selection (CFG_SEL0/CFG_SEL1)" for additional infor-

mation.

Power Deliv-

ery Profile

Configuration

Selector 1

CFG_SEL1

AIO

This pin is used in conjunction with CFG_SEL0 to select

the power delivery profile of the device via an externally

connected RC circuit. Refer to Section 3.3, "Configuration

Selection (CFG_SEL0/CFG_SEL1)" for additional infor-

mation.

TABLE 2-2:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

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