MAX1772 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX1772 Datasheet PDF : 20 Pages
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Low-Cost, Multichemistry Battery-
Charger Building Block
ELECTRICAL CHARACTERISTICS (continued)
(VDCIN = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VREFIN = 3.0V, VVCTL = VICTL = 0.75 VREFIN, VCELLS = 2.0V,
VACIN = 0V, CLS = REF, VBST - VLX = 4.5V, VGND = VPGND = 0V, CLDO = 1µF, LDO = DLOV, CREF = 1µF; pins CCI, CCS, and CCV
are compensated per Figure 1a; TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Battery-Regulation Voltage
Accuracy
REFIN Range
REFIN Undervoltage Lockout
ICHG Transconductance
ICHG Accuracy
IINP Transconductance
IINP Current Accuracy
CSSP - CSSN Accuracy
CSSP + CSSN Input Voltage
Range
VVCTL = VREFIN (2, 3, or 4 cells)
(see Equation 1)
VVCTL = VREFIN/20 (2, 3, or 4 cells)
(see Equation 1)
VICHG to (VCSIP - VCSIN); VCSIP -
VCSIN = 0.185V; VICHG = 0V, 3.0V
VCSIP - VCSIN = 0.185V
VCSIP - VCSIN = 0.05V
VIINP to (VCSSP - VCSSN); VCSSP -
VCSSN = 0.185V; VIINP = 0V, 3.0V (Note 3)
VCSSP - VCSSN = 0.185V
VCSSP - VCSSN = 0.05V
(Note 3)
VCSSP - VCSSN = 0.08V, VCLS = 1.6V
VCSSP - VCSSN = 0.2V, CLS = REF
-0.5
+0.5
%
-0.5
+0.5
2.0
3.6
V
1.20 1.92
V
0.95 1.00 1.05
µS
-5
+5
%
-10
+10
0.85 1.00 1.15
µS
-15
+15
%
-20
+20
-10
+10
%
-10
+10
8.0
28
V
LOGIC LEVELS
CELLS Input Low Voltage
0.2
V
CELLS Input Middle Voltage
0.4
V LDO
- 0.5
V
CELLS Input High Voltage
CELLS Input Bias Current
ACOK Sink Current
ACOK Leakage Current
VCELLS = 0V or VLDO
VACOK = 0.4V
VACOK = 5.5V
V LDO
- 0.25
-10
1
-1
V LDO
V
+10
µA
mA
+1
µA
4 _______________________________________________________________________________________
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