BQ27742-G1 Datasheet, PDF (7/46 Pages) Texas Instruments – Single-Cell Li-Ion Battery Fuel Gauge with Programmable Hardware Protection

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bq27742-G1
SLUSBV9C – MARCH 2014 – REVISED FEBRUARY 2016
6.3 Recommended Operating Conditions
T_A = 25°C, C_REG25 = 1.0 µF, and V_VPWR = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITION
V_VPWR
Supply voltage
No operating restrictions
No FLASH writes
C_VPWR
C_REG25
I_CC
External input capacitor for internal
LDO between VPWR and V_SS
Nominal capacitor values
specified. Recommend a 5%
External output capacitor for
ceramic X5R type capacitor
internal LDO between REG25 and _{located close to the device.}
V_SS
NORMAL operating mode
current⁽¹⁾⁽²⁾ (VPWR)
Fuel gauge in NORMAL mode
I_LOAD > Sleep Current with charge
pumps on (FETs on)
Fuel gauge in SLEEP+ mode.
I_SLP
SLEEP mode current⁽¹⁾⁽²⁾ (VPWR) I_LOAD < Sleep Current with charge
pumps on (FETs on)
I_FULLSLP
FULLSLEEP mode current⁽¹⁾⁽²⁾
(VPWR)
Fuel gauge in SLEEP mode.
I_LOAD < Sleep Current with charge
pumps on (FETs on)
I_SHUTDOWN
SHUTDOWN mode current⁽¹⁾⁽²⁾
(VPWR)
V_OL
Output voltage low (SCL, SDA,
HDQ, NC, RC2)
Fuel gauge in SHUTDOWN mode.
UVP tripped with fuel gauge and
protector turned off (FETs off)
V_VPWR = 2.5 V
T_A = 25°C
T_A = –40°C to 85°C
I_OL = 1 mA
V_OH(OD)
V_IL
Output voltage high (SDA, SCL,
HDQ, NC, RC2)
Input voltage low (SDA, SCL,
HDQ, NC)
External pullup resistor connected
to V_REG25
V_IH(OD)
Input voltage high (SDA, SCL,
HDQ, NC)
V_A1
Input voltage range (TS)
V_A2
Input voltage range (BAT)
V_A3
Input voltage range (SRP, SRN)
I_lkg
t_PUCD
Input leakage current (I/O pins)
Power-up communication delay
(1) All currents are specified with charge pump on (FETs on).
(2) All currents are continuous average over 5-second period.
MIN
2.8
2.45
0.47
V_REG25 – 0.5
–0.3
1.2
V_SS – 0.125
V_SS – 0.125
V_VPWR –
0.125
NOM
0.1
1.0
167
88
40
0.1
250
MAX
5.0
2.8
UNIT
V
µF
µF
µA
µA
µA
0.2 µA
0.5 µA
0.4 V
V
0.6 V
5.5 V
2V
5V
V_VPWR +
0.125
V
0.3 µA
ms
6.4 Thermal Information
THERMAL METRIC⁽¹⁾
bq27742-G1
YZF (DSBGA)
UNIT
15 PINS
R_θJA
R_θJCtop
R_θJB
ψ_JT
ψ_JB
R_θJCbot
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
70
°C/W
17
°C/W
20
°C/W
1
°C/W
18
°C/W
NA
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
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