AS8506 datasheet(6/89 Pages) AMSCO

6 / 89 page

AS8506 – 6

ams Datasheet, Confidential:2013-Sep [1-00]

P i n A ssig n me n t

WAKE_IN

Digital input

with pull-up

The wake pulse on this pin brings the IC into

NORMAL mode. This pin has a pull-up resistor to the

internal regulator. Should be driven with an open

drain or external NMOS.

NC_T

Analog input /

output

Not connected. Only used in Test mode.

SDO

Digital output

SPI data out

SDI

Digital input

SPI data in

SCLK

SPI clock

Digital input

with pull-up

SPI chip select

CELL_THU

Analog input /

output

Cell voltage upper threshold

CELL_THL

Cell voltage lower threshold

TEMP_IN2

Temperature input2 to the IC (NTC input; if NTC is not

connected, then should be connected to GND with

1K resistor).

TEMP_IN1

Temperature input1 to the IC (NTC input; if NTC is not

connected, then should be connected to GND with

1K resistor).

REF_T

Supply to temperature sensor (Reference voltage to

DAC and ADC).

V5V

Power supply

input

LDO 5V output.

V5V_IN

Supply to the bottom IC from the cascaded top IC.

WAKE_OUT

Digital output

open drain

Open drain o/p on the VSUP+5V domain. WAKE_IN

information will be transmitted to top device.

FD_IN

Digital input

Flyback converter gate drive input in daisy chain

connection. (If FD_IN is ‘high’ then FD_OUT will be

PWM o/p in balance mode).

BD_IN

Digital input

with pull-down

In cell stack system, the device gets balance done

status of above device. During address allocation

process if this pin is ‘High’, then the device address is

decremented by ‘1’.

CVT_NOK_IN

Indicates cell voltage or temperature status of above

device.

Pin Number

Pin Name

Pin Type

Description

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