MAX17435 查看數據表（PDF） - Maxim Integrated
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MAX17435 Datasheet PDF : 27 Pages
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High-Frequency,
Low-Cost SMBus Chargers
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO, VDCIN = VCSSP = VCSSN = 19V, VLX = 0V, VBST - VLX = 5V, VBATT = VCSIP = VCSIN = 16.8V,
TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
CHARGE-CURRENT REGULATION
CSIP-to-CSIN Full-Scale
Current-Sense Voltage
78.22 80.64 83.06 mV
RS2 = 10mI, Figure 1,
ChargingCurrent() = 0x1f80
7.822 8.064 8.306
A
-3
+3
%
Charge Current and Accuracy
RS2 = 10mI, Figure 1,
ChargingCurrent() = 0x0f80
3.829 3.968 4.107
A
-3.5
+3.5
%
RS2 = 10mI, Figure 1,
ChargingCurrent() = 0x0080
64
128 192
mA
-50
+50
%
Charge-Current Gain Error
Based on ChargeCurrent() = 128mA and
8.064A
-2
+2
%
INPUT CURRENT REGULATION
Input Current-Limit Threshold
RS1 = 10mI, Figure 1,
InputCurrent() = full scale
RS1 = 10mI, Figure 1,
InputCurrent() = 0C80
107.25 110 112.75
-2.5
+2.5
mV
62.08 64 65.92
-3
+3
RS1 = 10mI, Figure 1,
InputCurrent() = 0780
36.86 38.4 39.94
%
-4
+4
CSSP/CSSN Input Voltage Range
8
26
V
IINP Voltage Gain
19.7
20
20.3
V/V
IINP Output Voltage Range
0
4.2
V
IINP Accuracy
VCSSP - VCSSN = 110mV
VCSSP - VCSSN = 55mV
VCSSP - VCSSN = 5mV
-5
+5
-4
+4
%
-10
+10
IINP Gain Error
Based on VCSSP - VCSSN = 110mV and
VCSSP - VCSSN = 55mV
-1.5
+1.5
%
IINP Offset Error
Based on VCSSP - VCSSN = 110mV and
VCSSP - VCSSN = 55mV
-350
+350
FV
REFERENCE
REF Output Voltage
REF IREF = 50FA
4.082 4.096 4.115
V
REF Undervoltage-Lockout
Threshold
REF falling
3.1
3.9
V
LINEAR REGULATOR
LDO Output Voltage
LDO Load Regulation
LDO
IREF = 50FA
0 < ILDO < 40mA
5.2
5.4
5.6
V
127 250
mV
LDO Undervoltage-Lockout
Threshold
LDO falling, 500mV (typ) hysteresis
3.2
4.1
5.0
V
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