BQ33100_15 Datasheet, PDF (7/67 Pages) Texas Instruments – Super Capacitor Manager

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bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
7.10 External Capacitor Voltage Balance Drive
Typical values stated where T_A = 25°C and VCC = VCC = 14.4 V, Minimum and maximum values stated where T_A = –40°C to
85°C and VCC = VCC = 3.8 V to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Capacitor voltage balance ON for VC1,
VCi – VCi + 1 = 4 V, where i = 1 to approximately 4
5.7
R_{BAL_drive}
Internal pulldown
resistance for
external capacitor
voltage balance
Capacitor voltage balance ON for VC2,
VCi – VCi + 1 = 4 V, where = i = 1 to approximately 4
Capacitor voltage balance ON for VC3,
VCi – VCi + 1 = 4 V, where = i = 1 to approximately 4
3.7
kΩ
1.75
Capacitor voltage balance ON for VC4,
VCi – VCi + 1 = 4 V, where = i = 1 to approximately 4
0.85
7.11 Capacitor Voltage Monitor
Typical values stated where T_A = 25°C and VCC = VCC = 14.4 V, Minimum and maximum values stated where T_A = –40°C to
85°C and VCC = VCC = 3.8 V to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
CAPACITOR Voltage Measurement Accuracy
T_A = –10°C to 60°C
T_A = –40°C to 85°C
±10
±20
mV
±10
±35
7.12 Internal Temperature Sensor
Typical values stated where T_A = 25°C and VCC = VCC = 14.4 V, Minimum and maximum values stated where T_A = –40°C to
85°C and VCC = VCC = 3.8 V to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
T_(TEMP)
Temperature sensor accuracy
±3%
°C
7.13 Thermistor Measurement Support
Typical values stated where T_A = 25°C and VCC = VCC = 14.4 V, Minimum and maximum values stated where T_A = –40°C to
85°C and VCC = VCC = 3.8 V to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
R_ERR
Internal resistor drift
R
Internal resistor
TS
–230
17
ppm/°C
20
kΩ
7.14 Internal Thermal Shutdown
Typical values stated where T_A = 25°C and VCC = VCC = 14.4 V, Minimum and maximum values stated where T_A = –40°C to
85°C and VCC = VCC = 3.8 V to 25 V (unless otherwise noted)
PARAMETER ⁽¹⁾
TEST CONDITIONS
MIN
TYP
MAX UNIT
T_MAX
T_RECOVER
Maximum REG27 temperature
Recovery hysteresis temperature
125
175
°C
10
°C
(1) Parameters assured by design. Not production tested.
7.15 High-Frequency Oscillator
Typical values stated where T_A = 25°C and VCC = VCC = 14.4 V, Minimum and maximum values stated where T_A = –40°C to
85°C and VCC = VCC = 3.8 V to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
f_(OSC)
f_(EIO)
t_(SXO)
Operating frequency of CPU clock
Frequency error⁽¹⁾
Start-up time⁽²⁾
T_A = –20°C to 70°C
T_A = –40°C to 85°C
T_A = –25°C to 85°C
–2%
–3%
2.097
±0.25%
±0.25%
3
MHz
2%
3%
6 ms
(1) The frequency drift is included and measured from the trimmed frequency at VCC = VCC = 14.4 V, T_A = 25°C
(2) The start-up time is defined as the time it takes for the oscillator output frequency to be ±3% when the device is already powered.
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