MAX1909 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
MAX1909 Datasheet PDF : 30 Pages
| |||
Multichemistry Battery Chargers with Automatic
System Power Selector
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
Charge-Current Accuracy
MAX1909: VICTL = 3.6V x 0.5, MAX8725:
VICTL = 3.2V x 0.5 (including ICTL resistor
-7.0
tolerances of 1%)
+7.0
%
VICTL Default Threshold
BATT/CSIP/CSIN Input Voltage
Range
VICTL = VLDO (default threshold of 45mV)
-5
+5
VICTL rising
4.1
4.2
4.3
V
0
19
V
CSIP/CSIN Input Current
ICTL Power-Down Mode
Threshold Voltage
ICTL Power-Up Mode Threshold
Voltage
ICTL Input Bias Current
INPUT CURRENT REGULATION
Charging enabled
Charging disabled; VDCIN = 0 or VICTL = 0
350 650
µA
0.1
1
MAX1909
MAX8725
0.75
V
0.06
MAX1909
MAX8725
0.85
V
0.11
VICTL = 3V
VDCIN = 0V, VICTL = 5V
-1
+1
µA
-1
+1
CSSP-to-CSSN Full-Scale
Current-Sense Voltage
Input Current-Limit
Accuracy
CSSP/CSSN Input Voltage Range
CSSP/CSSN Input Current
CLS Input Range
CLS Input Bias Current
IINP Transconductance
VCLS = REF
VCLS = REF x 0.75
VCLS = REF x 0.5
VCSSP = VCSSN = VDCIN > 8.0V
VDCIN = 0
VCLS = 2.0V
VCSSP - VCSSN = 56mV
VCSSP - VCSSN = 75mV, terminated with
10kΩ
72.75 75.00 77.25
-3
+3
-3
+3
-4
+4
8.0
28
450 730
0.1
1
1.6
REF
-1
+1
2.7
3.0
3.3
-7.5
+7.5
mV
%
V
µA
V
µA
mA/V
IINP Accuracy
VCSSP - VCSSN = 56mV, terminated with
-5
10kΩ
+5
%
IINP Output Current
IINP Output Voltage
VCSSP - VCSSN = 20mV, terminated with
-10
10kΩ
VCSSP - VCSSN = 150mV, VIINP = 0V
350
VCSSP - VCSSN = 150mV, VIINP = float
3.5
+10
µA
V
_______________________________________________________________________________________ 3
Share Link: 