ISL6251 Просмотр технического описания (PDF) - Renesas Electronics
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ISL6251 Datasheet PDF : 20 Pages
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ISL6251, ISL6251A
Absolute Maximum Ratings
DCIN, CSIP, CSON to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
CSIP-CSIN, CSOP-CSON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
PHASE to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-7V to 30V
BOOT to PGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +35V
ACLIM, ACPRN, CHLIM, VDD to GND . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
BOOT-PHASE, VDDP-PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
ICM, ICOMP, VCOMP to GND . . . . . . . . . . . . . . . . . . . . . . .-0.3V to VDD+0.3V
VREF, CELLS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to VDD+0.3V
EN, VADJ, PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to VDD+0.3V
UGATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PHASE-0.3V to BOOT+0.3V
LGATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PGND-0.3V to VDDP+0.3V
Thermal Information
Thermal Resistance
JA(°C/W) JC (°C/W)
QFN Package (Notes 5, 7) . . . . . . . . . . . . . .
39
9.5
QSOP Package (Note 6). . . . . . . . . . . . . . . .
88
N/A
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-10°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . .-10°C to +100°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. When the voltage across ACSET is below 0V, the current through ACSET should be limited to less than 1mA.
5. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379.
6. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
7. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
8. BOOT-PHASE voltage is -0.3V to -0.7V during start-up. This is due to a small current (<1mA) that flows from the battery to the PHASE pin and to an
internal current sink on the BOOT pin through an internal diode. This does not harm the part.
Electrical Specifications DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = 1.5V, ACLIM = VREF, VADJ = Floating, EN = VDD = 5V,
BOOT-PHASE = 5.0V, GND = PGND = 0V, CVDD = 1µF, IVDD = 0mA, TA = -10°C to +100°C, TJ 125°C, unless otherwise noted. Boldface limits apply over
the operating temperature range, -10°C to +100°C.
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 10)
TYP
(Note 10)
UNITS
SUPPLY AND BIAS REGULATOR
DCIN Input Voltage Range
7
25
V
DCIN Quiescent Current
EN = VDD or GND, 7V DCIN 25V
1.4
3
mA
Battery Leakage Current (Note 9)
DCIN = 0, no load
3
10
µA
VDD Output Voltage/Regulation
VDD Undervoltage Lockout Trip Point
7V DCIN 25V, 0 IVDD 30mA
VDD Rising
4.925
5.075
5.225
V
4.0
4.4
4.6
V
Hysteresis
200
250
400
mV
Reference Output Voltage VREF
Battery Charge Voltage Accuracy
0 IVREF 300µA
CSON = 16.8V, CELLS = VDD, VADJ = Float
2.365
2.39
2.415
V
-0.5
0.5
%
CSON = 12.6V, CELLS = GND, VADJ = Float
-0.5
0.5
%
CSON = 8.4V, CELLS = Float, VADJ = Float
-0.5
0.5
%
CSON = 17.64V, CELLS = VDD, VADJ = VREF
-0.5
0.5
%
CSON = 13.23V, CELLS = GND, VADJ = VREF
-0.5
0.5
%
CSON = 8.82V, CELLS = Float, VADJ = VREF
-0.5
0.5
%
CSON = 15.96V, CELLS = VDD, VADJ = GND
-0.5
0.5
%
CSON = 11.97V, CELLS = GND, VADJ = GND
-0.5
0.5
%
CSON = 7.98V, CELLS = Float, VADJ = GND
-0.5
0.5
%
TRIP POINTS
ACSET Threshold
1.24
1.26
1.28
V
ACSET Input Bias Current Hysteresis
2.2
3.4
4.4
µA
ACSET Input Bias Current
ACSET 1.26V
2.2
3.4
4.4
µA
FN9202 Rev 3.00
March 13, 2014
Page 3 of 20
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