BQ25708 datasheet(10/77 Pages) TI2

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bq25708

SLUSCU2 – NOVEMBER 2017

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Electrical Characteristics (continued)

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT VOLTAGE REGULATION

VIREG_DPM_RNG

Input voltage regulation range Voltage on VBUS

3.2

19.52

VDPM_REG_ACC

Input voltage regulation

accuracy

REG0x3D()=0x3C80H

18688

–2%

REG0x3D()=0x1E00H

10880

–2.5%

2.5%

REG0x3D()=0x0500H

4480

–3%

REFERENCE AND BUFFER

REGN REGULATOR

VREGN_REG

REGN regulator voltage (0

mA–60 mA)

VVBUS = 10 V

5.7

6.3

VDROPOUT

REGN voltage in drop out

mode

VVBUS = 5 V, ILOAD = 20 mA

3.8

4.3

4.6

IREGN_LIM_Charging

REGN current limit when

converter is enabled

VVBUS = 10 V, force VREGN =

4 V

CREGN

REGN output capacitor

required for stability

ILOAD = 100 µA to 50 mA

2.2

µF

CVDDA

REGN output capacitor

required for stability

ILOAD = 100 µA to 50 mA

µF

QUIESCENT CURRENT

IBAT_BATFET_ON

System powered by battery.

BATFET on. ISRN + ISRP +

ISW2+ IBTST2 + ISW1 + IBTST1+

ACP + IACN + IVBUS + IVSYS

VBAT = 18 V, REG0x12[15]

= 1, in low power mode

µA

VBAT = 18 V, REG0x12[15]

= 1, in low power mode,

REG0x30[14:13] = 01,

REGN off

105

175

µA

VBAT=18 V, REG0x12[15] =

1, in low power mode,

REG0x30[14:13]= 10,

REGN off

µA

VBAT = 18 V, REG0x12[15]

= 0, REG0x30[12] = 0,

REGN on, EN_PSYS

860

1150

µA

VBAT = 18 V, REG0x12[15]

= 0, REG0x30[12] = 1,

REGN on

960

1250

IAC_SW_LIGHT_buck

Input current during PFM in

buck mode, no load, IVBUS +

IACP + IACN + IVSYS + ISRP +

ISRN + ISW1 + IBTST + ISW2 +

IBTST2

VIN = 20 V, VBAT = 12.6 V,

3 s, REG0x12[10] = 0;

MOSFET Qg = 4 nC

2.2

IAC_SW_LIGHT_boost

Input current during PFM in

boost mode, no load, IVBUS +

IACP + IACN + IVSYS + ISRP +

ISRN + ISW1 + IBTST2 + ISW2 +

IBTST2

VIN = 5 V, VBAT = 8.4 V, 2

s, REG0x12[10] = 0;

MOSFET Qg = 4 nC

2.7

IAC_SW_LIGHT_buckboost

Input current during PFM in

buck boost mode, no load,

IVBUS + IACP + IACN + IVSYS +

ISRP + ISRN + ISW1 + IBTST1 +

ISW2 + IBTST2

VIN = 12 V, VBAT = 12 V,

REG0x12[10] = 0; MOSFET

Qg = 4 nC

2.4

VACP/N_OP

Input common mode range

Voltage on ACP/ACN

3.8

VIADPT_CLAMP

IADPT output clamp voltage

3.1

3.2

3.3

IIADPT

IADPT output current

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