BQ25708 datasheet(35/94 Pages) TI2

35 / 94 page

Figure 9-11. Multi Read

9.5.1.8 Write 2-Byte I2C Commands

A few I2C commands combine two 8-bit registers together to form a complete value. These commands include:

• ChargeCurrent()

• MaxChargeVoltage()

• IIN_DPM()

• OTGVoltage()

• InputVoltage()

Host has to write LSB command followed by MSB command. No other command can be inserted in between

these two writes. The charger waits for the complete write to the two registers to decide whether to accept or

ignore the new value.

After the completion of LSB and MSB bytes, the two bytes will be updated at the same time. If host writes MSB

byte first, the command will be ignored. If the time between write of LSB and MSB bytes exceeds watchdog

timer, both the LSB and MSB commands will be ignored.

9.6 Register Map

Table 9-4. Charger Command Summary

I2C ADDR

(MSB/LSB)

TYPE

DESCRIPTION

LINKS

01/00h

ChargeOption0()

R/W

Charge Option 0

03/02h

ChargeCurrent()

R/W

7-bit charge current setting

LSB 64 mA, Range 0 mA – 8128 mA

05/04h

MaxChargeVoltage()

R/W

12-bit charge voltage setting

LSB 8 mV, Default: 1S-4200mV, 2S-8400mV,

3S-12600mV, 4S-16800mV

31/30h

ChargeOption1()

R/W

Charge Option 1

33/32h

ChargeOption2()

R/W

Charge Option 2

35/34h

ChargeOption3()

R/W

Charge Option 3

37/36h

ProchotOption0()

R/W

PROCHOT Option 0

39/38h

ProchotOption1()

R/W

PROCHOT Option 1

3B/3Ah

ADCOption()

R/W

ADC Option

21/20h

ChargerStatus()

Charger Status

23/22h

ProchotStatus()

Prochot Status

25/24h

IIN_DPM()

7-bit input current limit in use

LSB: 50 mA, Range: 50 mA - 6400 mA

27/26h

ADCVBUS/PSYS()

8-bit digital output of input voltage,

8-bit digital output of system power

PSYS: Full range: 3.06 V, LSB: 12 mV

VBUS: Full range: 3.2 V - 19.52 V, LSB 64 mV

29/28h

ADCIBAT()

8-bit digital output of battery charge current,

8-bit digital output of battery discharge current

ICHG: Full range 8.128 A, LSB 64 mA

IDCHG: Full range: 32.512 A, LSB: 256 mA

www.ti.com

BQ25713, BQ25713B

SLUSD83C – JUNE 2018 – REVISED MAY 2023

Submit Document Feedback

Product Folder Links: BQ25713 BQ25713B

BQ25708 Folha de dados(PDF) 35 Page - Texas Instruments

BQ25708 Folha de dados(HTML) 35 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Folha de dados Download

Ligação URL