BQ7693003DBT datasheet(13/68 Pages) TI2

13 / 68 page

7.5 Electrical Characteristics (continued)

Typical conditions are measured at 25°C with nominal BAT voltages of 18 V (BQ76920), 36 V (BQ76930), or 48 V (BQ76940)

with VCELL = 4 V. Min and max values include full recommended operating condition temperature range from –40°C to +85°C.

Certain characteristics may be shown at different voltage or temperature ranges, as clarified in the Test Condition sections.

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

RCHG_OFF

CHG pull-down OFF

resistance to VSS

When CHG disabled, CHG held at 12 V

750

1000

1250

kΩ

RDSG_OFF

DSG pull-down OFF

resistance to VSS

When DSG disabled, DSG held at 12 V

1.75

2.50

4.25

kΩ

VLOAD_DETECT

Load detection threshold

0.4

0.7

1.0

VCHG_CLAMP

CHG clamp voltage

If the CHG pin externally pulled high

(through PACK–, if load applied), 500-

µA max sink current into CHG pin. With

CHG_ON bit cleared.

ALERT PIN

VALERT_OH

ALERT output voltage high IOL = 1 mA

REGOUT x

0.75

VALERT_OL

ALERT output voltage low

Unloaded

REGOUT

x 0.25

VALERT_IH

ALERT input high

ALERT externally forced high when

internally driven low. See note (1).

1.5

RALERT_PD

ALERT pin weak pulldown

resistance when driven low

Measured into ALERT pin with ALERT =

REGOUT

0.8

2.5

MΩ

CELL BALANCING DRIVER

RDSFET

Internal cell balancing

driver resistance

VCELL = 3.6 V

XBAL

Cell balancing duty cycle

when enabled

Every 250 ms

70%

EXTERNAL REGULATOR

VEXTLDO

External LDO voltage

options

Nominal values, TI factory programmed,

unloaded, across temp

2.45

2.50

2.55

3.20

3.30

3.40

VEXTLDO_LN

Line regulation

REGSRC pin stepped from 6 to 25 V,

with 10-mA load, in 100 µs

100

VEXTLDO_LD

Load regulation

IREGOUT = 0 mA to 10 mA

–4%

VEXTLDO_DC

External LDO minimum

voltage under DC load

REGOUT = 10-mA DC, 2.5-V version

2.4

REGOUT = 20-mA DC, 2.5-V version

2.3

REGOUT = 10-mA DC, 3.3-V version

3.15

REGOUT = 20-mA DC, 3.3-V version

3.05

IEXTLDO_LIMIT

External LDO current limit

REGOUT = 0 V

BOOT DETECTOR

VBOOT

Boot threshold voltage

Measured at TS1 pin with device in SHIP

mode. Below MIN, the device does not

boot up. Above MAX, the device boots

up.

300

1000

tBOOT_max

Boot threshold application

time

Measured at TS1 pin. Below MIN, the

device does not boot up. Above MAX,

the device boots up.

2000

µs

(1)

MIN specifies the threshold below which the device will never register that an external alert has occurred. MAX specifies the minimum

threshold above which the device will always register that an external alert has occurred.

(2)

Values indicate nominal thresholds only. For min and max variation, apply OCOFFSET and OCSCALERR.

(3)

Values indicate nominal thresholds only. For min and max variation, apply tPROTACC.

(4)

Measured at each VBAT

www.ti.com

BQ76920, BQ76930, BQ76940

SLUSBK2I – OCTOBER 2013 – REVISED MARCH 2022

Submit Document Feedback

Product Folder Links: BQ76920 BQ76930 BQ76940

BQ7693003DBT Datasheet(PDF) 13 Page - Texas Instruments

BQ7693003DBT Datasheet(HTML) 13 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

Datasheet Download

Link URL