www.austriamicrosystems.com/Battery-Chargers/AS3610

1.01

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AS3610/11

Datasheet - D e t a i l e d D e s c r i p t i o n

Sequential Read is the extended form of Random Read, as more than one register-data bytes are transferred subsequently. In difference to the

Random Read, for a sequential read the transferred register-data bytes are responded by an acknowledge from the master. The number of data

bytes transferred in one sequence is unlimited (consider the behavior of the word-address counter). To terminate the transmission the master

has to send a not-acknowledge following the last data byte and generate the STOP condition subsequently.

Figure 19. Current Address Read

To keep the access time as small as possible, this format allows a read access without the word address transfer in advance to the data transfer.

The bus is idle and the master issues a START condition followed by the Device-Read address. Analogous to Random Read, a single byte

transfer is terminated with a not-acknowledge after the 1st register byte. Analogous to Sequential Read an unlimited number of data bytes can

be transferred, where the data bytes has to be responded with an acknowledge from the master. For termination of the transmission the master

sends a not-acknowledge following the last data byte and a subsequent STOP condition.

The AS3610 is compatible to the NXP two wire specification http://www.nxp.com/acrobat_download2/literature/9398/39340011.pdf Version 2.1

January 2000 for standard and fast mode (no high speed mode).

8.4

AS3611 pre-programmed variants

AS3611 is intended to work stand-alone with out an micro-controller. For this use case some of the basic configurations have to be pre-

programmed into the device. Two basic configurations are shown in the tables below. Adaptations to these configurations are possible upon

request.

Table 5. AS3611-A stand alone version for Li-Ion/LiPo,100kOhm NTC

Reg. Addr.

Value

Description

Reg. Name

0

7Fh

standalone mode=1, Boost_en=1, prechg_en=1, nobat_det=0

Charger Control

1

63h

Veoc=4.2V, Vchg_min=4.2

Charger Voltage Control

2

00h

Charger Current Control

3

05h

100kOhm NTC, low_temp range (45/50°C)

NTC Supervision

4

8Ah

ch_timeout=5h, stat_mode: charging=on; EOC=1Hz blinking, stop_charging

or boost_error=5Hz

Charger supervision

Table 6. AS3611-B stand alone version for Li-Ion/LiPo,10kOhm NTC

Reg. Addr.

Value

Description

Reg. Name

0

7Fh

standalone mode=1, Boost_en=1, prechg_en=1, nobat_det=0

Charger Control

1

63h

Veoc=4.2V, Vchg_min=4.2

Charger Voltage Control

2

00h

Charger Current Control

3

07h

10kOhm NTC, low_temp range (45/50°C)

NTC Supervision

4

8Ah

ch_timeout=5h, stat_mode: charging=on; EOC=1Hz blinking, stop_charging

or boost_error=5Hz

Charger supervision

Table 7. AS3611-C stand alone version for FePO4, 10kOhm NTC

Reg. Addr.

Value

Description

Reg. Name

0

7Fh

standalone mode=1, Boost_en=1, prechg_en=1, nobat_det=0

Charger Control

1

47h

Veoc=3.64V, Vchg_min=4.2

Charger Voltage Control

2

01h

eoccurr=1

Charger Current Control

3

05h

100kOhm NTC, low_temp range (45/50°C)

NTC Supervision

4

A6h

ch_timeout=3h, stat_mode: ch_det=on; EOC=1Hz blinking, stop_charging

or boost_error=5Hz

Charger supervision

S

N

A

read register

WA++

data

DR

P

reg_data 2

A

read register

WA++

reg_data n

...

A

read register

WA++