HOST

NTC

PACK +

PACK-

bq5105x

BAT

TERM

AD

AD-EN

CHG

EN2

AC1

AC2

COMM2

CLAMP2

COIL

BOOT1

RECT

TS

BOOT2

CLAMP1

COMM1

Bi-State

Tri-State

USB or

AC Adapter

Input

Wired

Charger

PGND

ILIM

FOD

bq51050B

bq51051B

www.ti.com

SLUSB42C – JULY 2012 – REVISED FEBRUARY 2013

THERMAL INFORMATION

YFP

RHL

UNITS

28-PINS

20-PINS

Junction-to-ambient thermal resistance

58.9

37.7

Junction-to-case (top) thermal resistance

0.2

35.5

Junction-to-board thermal resistance

9.1

13.6

°C/W

Junction-to-top characterization parameter

1.4

0.5

Junction-to-board characterization parameter

8.9

13.5

Junction-to-case (bottom) thermal resistance

n/a

2.7

space

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

RECOMMENDED OPERATING CONDITIONS

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

MIN

MAX

UNIT

Input voltage range

RECT

4.0

10.0

V

Input current

RECT

1.5

A

BAT(output) current

BAT

1.5

A

Sink current

AD-EN

1

mA

COMM sink current

COMM

500

mA

Junction temperature

0

125

°C

TYPICAL APPLICATION SCHEMATIC

Figure 2. bq5105x Used as a Wireless Power Receiver and Li-Ion/Li-Pol Battery Charger

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