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MAX8725ETI 데이터시트(PDF) 4 Page - Maxim Integrated Products

부품명 MAX8725ETI
상세설명  Multichemistry Battery Charger with Automatic System Power Selector
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제조업체  MAXIM [Maxim Integrated Products]
홈페이지  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX8725ETI 데이터시트(HTML) 4 Page - Maxim Integrated Products

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Multichemistry Battery Chargers with Automatic
System Power Selector
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VDCIN = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VVCTL = VICTL = 1.8V, MODE = float, ACIN = 0, CLS =
REF, GND = PGND = 0, PKPRES = GND, LDO = DLOV, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY AND LINEAR REGULATOR
DCIN Input Voltage Range
VDCIN
8.0
28
V
DCIN falling
7
7.4
DCIN Undervoltage-Lockout Trip
Point
DCIN rising
7.5
7.85
V
DCIN Quiescent Current
IDCIN
8.0V < VDCIN < 28V
2.7
6
mA
VBATT = 19V, VDCIN = 0V, or ICTL = 0V
0.1
1
VBATT = 16.8V, VDCIN = 19V, ICTL = 0V
0.1
1
BATT Input Current
IBATT
VBATT = 2V to 19V, VDCIN > VBATT + 0.3V
200
500
µA
LDO Output Voltage
8.0V < VDCIN < 28V, no load
5.25
5.4
5.55
V
LDO Load Regulation
0 < ILDO < 10mA
80
115
mV
LDO Undervoltage-Lockout Trip
Point
VDCIN = 8.0V
3.20
4
5.15
V
REFERENCE
REF Output Voltage
Ref
0 < IREF < 500µA
4.2023
4.2235
4.2447
V
REF Undervoltage-Lockout Trip
Point
REF falling
3.1
3.9
V
TRIP POINTS
BATT POWER_FAIL Threshold
VDCIN - VBATT, VDCIN falling
50
100
150
mV
BATT POWER_FAIL Threshold
Hysteresis
100
200
300
mV
ACIN Threshold
ACIN rising
2.007
2.048
2.089
V
ACIN Threshold Hysteresis
10
20
30
mV
ACIN Input Bias Current
VACIN = 2.048V
-1
+1
µA
SWITCHING REGULATOR
DHI Off-Time
VBATT = 16.0V, VDCIN = 19V, VMODE = 3.6V
360
400
440
ns
DHI Minimum Off-Time
VBATT = 16.0V, VDCIN = 17V, VMODE = 3.6V
260
300
350
ns
DLOV Supply Current
IDLOV
DLO low
5
10
µA
Sense Voltage for Minimum
Discontinuous Mode Ripple
Current
7.5
mV
Cycle-by-Cycle Current-Limit
Sense Voltage
97
mV
Sense Voltage for Battery
Undervoltage Charge Current
MAX1909 only, BATT = 3.0V per cell
3
4.5
6
mV
MAX1909 only, MODE = float (3 cell),
VBATT rising
9.18
9.42
Battery Undervoltage Threshold
MAX1909 only, MODE = LDO (4 cell),
VBATT rising
12.235
12.565
V
DHIV Output Voltage
With respect to SRC
-4.5
-5.0
-5.5
V


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