bq25505
SLUSBJ3B –AUGUST 2013–REVISED JANUARY 2014
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ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
VALUE
MIN
UNIT
MAX
VIN_DC, VOC_SAMP, VREF_SAMP, VBAT_OV, VB_PRI_ON,
Input voltage
VB_SEC_ON, VBAT_PRI, VBAT_SEC, VRDIV, OK_HYST, OK_PROG,
–0.3
5.5
V
VBAT_OK, VSTOR, LBST(2)
Peak Input Power, PIN_PK
510
125
150
mW
°C
Operating junction temperature range, TJ
Storage temperature range, TSTG
–40
–65
°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) All voltage values are with respect to VSS/ground terminal.
THERMAL INFORMATION
bq25505
THERMAL METRIC(1)(2)
UNITS
RGR (20 PINS)
θJA
Junction-to-ambient thermal resistance
34.6
49.0
12.5
0.5
θJCtop
θJB
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
°C/W
ψJT
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
ψJB
12.6
1.0
θJCbot
(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
5.1
UNIT
V
VIN(DC)
DC input voltage into VIN_DC(1)
Battery voltage range(2)
0.1
2
VBAT_SEC,
VBAT_PRI
5.5
V
CIN
Input capacitance
4.7
4.7
µF
µF
CSTOR
Storage capacitance
CBAT
Battery pin capacitance or equivalent battery capacity
Sampled reference storage capacitance
Total resistance for setting for MPPT reference.
Total resistance for setting the VBAT_OK threshold voltage.
Total resistance for setting VBAT_OV threshold voltage.
Input inductance
100
µF
CREF
9
18
10
20
13
13
11
22
15
15
nF
ROC1 + ROC2
MΩ
MΩ
MΩ
µH
°C
ROK 1 + ROK 2 + ROK3
11
ROV1 + ROV2
11
L1
TA
TJ
22
Operating free air ambient temperature
Operating junction temperature
–40
–40
85
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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