MAX1909ETIT Maxim Integrated Products, Inc., MAX1909ETIT Datasheet - Page 4

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MAX1909ETIT

Manufacturer Part Number
MAX1909ETIT
Description
Multichemistry Battery Chargers With Automatic System Power Selector
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
Multichemistry Battery Chargers with Automatic
System Power Selector
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
REF, GND = PGND = 0, PKPRES = GND, LDO = DLOV, T
4
SUPPLY AND LINEAR REGULATOR
DCIN Input Voltage Range
DCIN Undervoltage-Lockout Trip
Point
DCIN Quiescent Current
BATT Input Current
LDO Output Voltage
LDO Load Regulation
LDO Undervoltage-Lockout Trip
Point
REFERENCE
REF Output Voltage
REF Undervoltage-Lockout Trip
Point
TRIP POINTS
BATT POWER_FAIL Threshold
BATT POWER_FAIL Threshold
Hysteresis
ACIN Threshold
ACIN Threshold Hysteresis
ACIN Input Bias Current
SWITCHING REGULATOR
DHI Off-Time
DHI Minimum Off-Time
DLOV Supply Current
Sense Voltage for Minimum
Discontinuous Mode Ripple
Current
Cycle-by-Cycle Current-Limit
Sense Voltage
Sense Voltage for Battery
Undervoltage Charge Current
Battery Undervoltage Threshold
DHIV Output Voltage
_______________________________________________________________________________________
PARAMETER
DCIN
= V
CSSP
= V
SYMBOL
CSSN
V
I
I
I
DLOV
DCIN
BATT
DCIN
Ref
= 18V, V
DCIN falling
DCIN rising
8.0V < V
V
V
V
8.0V < V
0 < I
V
0 < I
REF falling
V
ACIN rising
V
V
V
DLO low
MAX1909 only, BATT = 3.0V per cell
MAX1909 only, MODE = float (3 cell),
V
MAX1909 only, MODE = LDO (4 cell),
V
With respect to SRC
BATT
BATT
BATT
DCIN
DCIN
ACIN
BAT T
BAT T
BATT
BATT
BATT
LDO
REF
= 2.048V
= 16.0V , V
= 16.0V , V
A
= 19V, V
= 16.8V, V
= 2V to 19V, V
= 8.0V
- V
rising
rising
= V
DCIN
DCIN
= 0°C to +85°C, unless otherwise noted. Typical values are at T
< 500µA
< 10mA
BATT
CSIP
< 28V
< 28V, no load
, V DCIN falling
CONDITIONS
DCIN
= V
DCIN
DCIN
DCIN
CSIN
= 0V, or ICTL = 0V
DCIN
= 19V , V
= 17V , V
= 19V, ICTL = 0V
= 12V, V
> V
BATT
MOD E
MOD E
VCTL
+ 0.3V
= 3.6V
= 3.6V
= V
ICTL
= 1.8V, MODE = float, ACIN = 0, CLS =
4.2023
12.235
2.007
5.25
3.20
9.18
MIN
100
360
260
-4.5
8.0
50
10
-1
7
3
4.2235
2.048
TYP
200
100
200
400
300
-5.0
7.4
7.5
2.7
0.1
0.1
5.4
3.1
7.5
4.5
80
20
97
4
5
4.2447
12.565
2.089
MAX
7.85
5.55
5.15
9.42
-5.5
500
115
150
300
440
350
3.9
28
30
+1
10
6
1
1
6
A
= +25°C.)
UNITS
mA
mV
mV
mV
mV
mV
mV
mV
µA
µA
µA
ns
ns
V
V
V
V
V
V
V
V
V

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