MAX1758 Maxim, MAX1758 Datasheet - Page 4

• Manufacturer Part Number: MAX1758
• Description: Stand-Alone / Switch-Mode Li Battery Charger with Internal 28V Switch
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
V
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 28V Switch
4
ISETIN
CONTROL INPUTS/OUTPUTS
BATT Undervoltage Threshold
(Note 3)
BATT Overvoltage Threshold
(Note 4)
FULLCHG BATT Current
Termination Threshold (Note 5)
BATT Recharge Voltage
Threshold (Note 6)
TIMER1 and TIMER2
Oscillation Frequency
Prequalification Timer
Fast-Charge Timer
Full-Charge Timer
Top-Off Timer
Temperature Measurement
Frequency
SHDN Input Voltage High
SHDN Input Voltage Low
VADJ, ISETIN, ISETOUT Input
Voltage Range
VADJ, ISETIN, ISETOUT Input
Bias Current
SHDN Input Bias Current
CELL Input Bias Current
ISETOUT Shutdown Threshold
Voltage (Note 3)
CELL Input Voltage
_______________________________________________________________________________________
= V
PARAMETER
ISETOUT
= V
DCIN
REF
, R
= V
THM
HSD
= 10kΩ, T
SYMBOL
= V
V
V
CSSP
IH
IL
A
= V
= 0°C to +85°C, unless otherwise noted. Typical values are at T
V
V
V
For 1 cell
For 2 cells (floating)
For 3 cells
For 4 cells
CSSN
VADJ
CELL
SHDN
, V
= 0 or V
= 18V, V
= 0 or V
ISETIN
, V
VL
VL
CONDITIONS
SHDN
ISETOUT
= V
= 0 or 4.2V
VL
, V
CELL
= GND, V
BATT
V
V
REF
VL
4.55
6.25
40.5
0.98
MIN
250
150
2.4
2.1
1.4
-50
1.5
94
81
81
-1
-5
0
0
= V
- 0.4
- 0.3
CS
= 4.2V, V
TYP
4.67
2.33
1.12
330
220
2.5
7.5
95
90
90
45
A
= +25°C.)
V
REF
VADJ
MAX
V
8.75
49.8
1.32
400
100
100
300
2.6
4.8
2.6
0.6
0.5
2.5
+ 0.3
V
96
50
REF
1
5
VL
= V
V
UNITS
REF
V/cell
V/cell
x cell
BATTR
% of
kHz
min
min
min
min
mA
mV
Hz
nA
µA
µA
V
V
V
V
/ 2,