bq25570

SLUSBH2C – MARCH 2013 – REVISED JANUARY 2014

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ABSOLUTE MAXIMUM RATINGS

(1)

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

VALUE

UNIT

MIN

MAX

VIN_DC, VOC_SAMP, VREF_SAMP, VBAT_OV, VRDIV, OK_HYST,

Input voltage

OK_PROG, VBAT_OK, VBAT, VSTOR, LBOOST, EN, VOUT_EN,

–0.3

5.5

V

Peak Input Power, PIN_PK

510

mW

–40

125

°C

–65

150

°C

(1)

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings

only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating

conditions” is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability.

(2)

THERMAL INFORMATION

bq25570

UNITS

RGR (20 PINS)

Junction-to-ambient thermal resistance

34.6

Junction-to-case (top) thermal resistance

49.0

Junction-to-board thermal resistance

12.5

°C/W

Junction-to-top characterization parameter

0.5

Junction-to-board characterization parameter

12.6

Junction-to-case (bottom) thermal resistance

1.0

(1)

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

(2)

For thermal estimates of this device based on PCB copper area, see the TI PCB Thermal Calculator.

spacing

RECOMMENDED OPERATING CONDITIONS

MIN

NOM

MAX

UNIT

VIN(DC)

0.1

5.1

V

VBAT, VOUT

2

5.5

V

CIN

Capacitance on VIN_DC pin

4.7

µF

CSTOR

Capacitance on VSTOR pin

4.7

µF

COUT

Capacitance on VOUT pin

10

22

µF

Capacitance or battery with at least the same equivalent capacitance on

CBAT

100

µF

VBAT pin

CREF

Capacitance on VREF_SAMP that stores the samped VIN reference

9

10

11

nF

Total resistance for setting for MPPT reference if needed

18

20

22

M

Ω

Total resistance for setting VBAT_OK threshold voltage.

11

13

15

M

Ω

Total resistance for setting VOUT threshold voltage.

11

13

15

M

Ω

Total resistance for setting VBAT_OV voltage.

11

13

15

M

Ω

L1

Inductance on LBOOST pin

22

µH

L2

Inductance on LBUCK pin

4.7

10

µH

Operating free air ambient temperature

–40

85

°C

Operating junction temperature

–40

105

°C

(1)

Maximum input power

≤ 400 mW. Cold start has been completed

(2)

VBAT_OV setting must be higher than VIN_DC

4

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