MAX8730 Просмотр технического описания (PDF) - Maxim Integrated
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MAX8730 Datasheet PDF : 29 Pages
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Low-Cost Battery Charger
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. VSRC = VASNS = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VVCTL = VICTL = 1.8V, MODE = float,
ACIN = 0, CLS = REF, REFON = LDO, INPON = LDO, RELTH = 2V. TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
INPUT-CURRENT REGULATION
CSSP-to-CSSN Full-Scale
Current-Sense Voltage
Input Current-Limit Accuracy
CSSP/CSSN Input Voltage Range
CSSP/CSSN Input Current
SYMBOL
CONDITIONS
VCLS = REF (trim point)
VCLS = REF x 0.7
VCLS = REF x 0.5
VCSSP = VCSSN = VSRC > 8.0V
MIN TYP MAX UNITS
72.75
72.75
50.0
36.00
8.0
78.25 mV
78.25 mV
56.0
mV
40.50 mV
28
V
1000
µA
CLS Input Range
1.1
REF
V
IINP Transconductance
IINP Accuracy
IINP Gain Error
IINP Offset Error
IINP Fault Threshold
SUPPLY AND LINEAR REGULATOR
SRC Input Voltage Range
SRC Undervoltage Lockout
Threshold
SRC Quiescent Current
(INPON/REFON = Don’t Care)
BATT Input Current
Battery Leakage Current
LDO Output Voltage
LDO Load Regulation
VCSSP - VCSSN = 56mV
VCSSP - VCSSN = 100mV, VIINP = 0 to 4.5V
VCSSP - VCSSN = 75mV
VCSSP - VCSSN = 56mV
VCSSP - VCSSN = 20mV
Based on VICTL = REF x 0.5 and VICTL = REF
Based on VICTL = REF x 0.5 and VICTL = REF
IINP rising
2.66
-5
-8
-5
-12.5
-7
-2
4.1
8.0
SRC falling
7
SRC rising
Normal mode
VINPON = VREFON = low
SRC = VBATT =
12V, ASNS =
GND (Note 2)
VINPON = low,
VREFON = high
VINPON = high,
VREFON = low
VINPON = VREFON = high
VBATT = 2V to 19V, VSRC > VBATT + 0.3V
ICSIP + ICSIN + IBATT
+ ICSSP + ICSSN + ISRC,
ASNS = REFON = GND
VREFON = 5.4V
INPON = GND
8.0V < VSRC < 28V, no load
5.2
0 < ILDO < 10mA
2.94
+5
+8
+5
+12.5
+7
+2
4.3
µA/mV
%
%
mV
V
28
V
V
8
6
mA
20
600
µA
600
600
600
µA
600
µA
16
5.5
V
50
mV
_______________________________________________________________________________________ 7
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