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BQ40Z50 データシートの表示(PDF) - Texas Instruments

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BQ40Z50 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager TI
Texas Instruments TI
BQ40Z50 Datasheet PDF : 54 Pages
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bq40z50
Not Recommended For New Designs
SLUSBS8A – DECEMBER 2013 – REVISED DECEMBER 2014
www.ti.com
7.22 Electrical Characteristics: TS1, TS2, TS3, TS4
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VIN
RNTC(PU)
Input voltage
range
Internal pullup
resistance
TS1, TS2, TS3, TS4, VBIAS = VREF1
TS1, TS2, TS3, TS4, VBIAS = VREG
TS1, TS2, TS3, TS4
–0.2
–0.2
14.4
0.8 x VREF1
V
0.8 x VREG
18
21.6 kΩ
RNTC(DRIFT)
Resistance drift
over
TS1, TS2, TS3, TS4
temperature
–360
–280
–200 PPM/°C
7.23 Electrical Characteristics: PTC, PTCEN
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
RPTC(TRIP)
PTC trip
resistance
1.2
2.5
3.95 MΩ
VPTC(TRIP)
IPTC
PTC trip voltage
Internal PTC
current bias
VPTC(TRIP) = VPTCEN – VPTC
TA = –40°C to 110°C
200
500
200
290
890 mV
350 nA
tPTC(DELAY) PTC delay time TA = –40°C to 110°C
40
80
145 ms
7.24 Electrical Characteristics: Internal 1.8-V LDO
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VREG
ΔVO(TEMP)
Regulator voltage
Regulator output
over temperature
ΔVREG/ΔTA, IREG = 10 mA
1.6
1.8
±0.25%
2.0
V
ΔVO(LINE)
ΔVO(LOAD)
IREG
Line regulation
Load regulation
Regulator output
current limit
ΔVREG/ΔVBAT, VBAT = 10 mA
ΔVREG/ΔIREG, IREG = 0 mA to 10 mA
VREG = 0.9 x VREG(NOM), VIN > 2.2 V
–0 .6%
–1.5%
20
0.5%
1.5%
mA
ISC
Regulator short-
circuit current limit
VREG = 0 x VREG(NOM)
25
40
55 mA
PSRRREG
Power supply
rejection ratio
ΔVBAT/ΔVREG, IREG = 10 mA ,VIN > 2.5 V, f = 10 Hz
40
dB
VSLEW
Slew rate
enhancement
voltage threshold
VREG
1.58
1.65
V
7.25 Electrical Characteristics: High-Frequency Oscillator
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
fHFO
fHFO(ERR)
tHFO(SU)
Operating frequency
Frequency error
Start-up time
TA = –20°C to 70°C, includes frequency drift
TA = –40°C to 85°C, includes frequency drift
TA = –20°C to 85°C, oscillator frequency within
+/–3% of nominal
oscillator frequency within +/–3% of nominal
–2.5%
–3.5%
16.78
±0.25%
±0.25%
2.5%
3.5%
4
100
MHz
ms
µs
14
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