BQ24735_17 Datasheet, PDF (5/46 Pages) Texas Instruments – 1- to 4-Cell Li+ Battery SMBus Charge Controller for Supporting Turbo Boost Mode With N-Channel Power MOSFET Selector

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bq24735
SLUSAK9B – SEPTEMBER 2011 – REVISED APRIL 2015
7.2 ESD Ratings
V_(ESD)
Electrostatic
discharge
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001⁽¹⁾
Charged device model (CDM), per JEDEC specification JESD22-C101⁽²⁾
VALUE
±2000
±500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
UNIT
V
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
Voltage
Maximum difference voltage
Junction temperature, T_J
SRN, SRP, ACN, ACP, CMSRC, VCC
PHASE
ACDET, SDA, SCL, LODRV, REGN, IOUT, ILIM, ACOK
BTST, HIDRV, ACDRV, BATDRV
SRP–SRN, ACP–ACN
MIN NOM
0
–2
0
0
–0.2
0
MAX
24
24
6.5
30
0.2
125
UNIT
V
V
°C
7.4 Thermal Information
THERMAL METRIC⁽¹⁾
bq24735
RGR [VQFN]
UNIT
20 PINS
R_θJA
R_θJC(top)
R_θJB
ψ_JT
ψ_JB
R_θJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
46.8
°C/W
56.9
°C/W
46.6
°C/W
0.6
°C/W
15.3
°C/W
4.4
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
7.5 Electrical Characteristics
4.5 V ≤ V_VCC ≤ 24 V, 0°C ≤ T_J ≤ 125°C, typical values are at T_A = 25°C, with respect to GND (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
OPERATING CONDITIONS
V_{VCC_OP}
VCC Input voltage operating range
CHARGE VOLTAGE REGULATION
4.5
24
V_{BAT_REG_RNG}
Battery voltage range
ChargeVoltage() = 0x41A0H
1.024
16.716
–0.5%
19.2
16.8 16.884
0.5%
V_{BAT_REG_ACC}
Charge voltage regulation accuracy
ChargeVoltage() = 0x3130H
ChargeVoltage() = 0x20D0H
12.529
–0.5%
8.35
–0.6%
12.592
8.4
12.655
0.5%
8.45
0.6%
ChargeVoltage() = 0x1060H
4.163
–0.7%
4.192
4.221
0.7%
CHARGE CURRENT REGULATION
V_{IREG_CHG_RNG}
Charge current regulation differential
voltage range
V_{IREG_CHG} = V_SRP - V_SRN
0
81.28
UNIT
V
V
V
V
V
V
mV
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