MAX1757 Maxim, MAX1757 Datasheet - Page 4

• Manufacturer Part Number: MAX1757
• Description: Stand-Alone / Switch-Mode Li Battery Charger with Internal 14V Switch
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
V
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
4
ISETIN
STATE MACHINE
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
VADJ
CELL
SHDN
CSSN
, V
= 0 or V
= 0 or V
= 12V, V
ISETIN
, V
VL
VL
CONDITIONS
SHDN
ISETOUT
= V
= 0 or 4.2V
VL
, V
CELL
= GND, V
BATT
V
REF
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
- 0.3
CS
TYP
4.67
2.33
1.12
330
220
2.5
7.5
= 4.2V, V
95
90
90
45
A
= +25°C.)
V
REF
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
VADJ
96
50
REF
1
5
= V
V
UNITS
BATTR
V/cell
V/cell
cells
% of
kHz
min
min
min
min
mA
mV
Hz
nA
µA
µA
REF
V
V
V
V
/2,
x