MAX1758 Maxim, MAX1758 Datasheet - Page 5

• 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
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
V
SUPPLY AND REFERENCE
SWITCHING REGULATOR
ACCURACY AND ERROR AMPLIFIERS
STATE MACHINE
DCIN Input Voltage Range
VL Output Voltage
REF Output Voltage
REF Line Regulation
PWM Oscillator Frequency
HSD to LX On-Resistance
LX to PGND On-Resistance
CS to BATT Hard Current Limit
BATT, CS Input Voltage Range
Absolute Voltage Accuracy
BATT Regulation Voltage
BATT Full-Scale Charge Current
BATT 1/10-Scale Charge
Current (Note 1)
BATT Charge Current in
Prequalification State
CSSP to CSSN Full-Scale
Current-Sense Voltage
CSSP to CSSN 1/10-Scale
Current-Sense Voltage
THM Trip Threshold Voltage
THM Low-Temp Current
ISETIN
FASTCHG, FULLCHG, FAULT
Output Low Voltage
FASTCHG, FULLCHG, FAULT
Output High Leakage
ISETIN
Li+ Battery Charger with Internal 28V Switch
= V
= V
PARAMETER
PARAMETER
ISETOUT
ISETOUT
= V
= V
_______________________________________________________________________________________
DCIN
DCIN
REF
REF
, R
, R
= V
= V
THM
THM
HSD
HSD
= 10kΩ, T
= 10kΩ, T
SYMBOL
SYMBOL
= V
= V
I
f
V
TLTC
V
OSC
TRT
CSSP
CSSP
OL
A
A
= V
= V
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= -40°C to +85°C, unless otherwise noted.) (Note 7)
6V < V
6V < V
Nondropout f
V
Instantaneous peak current limit
Not including VADJ resistor tolerances
With 1% VADJ resistors
CELL = float, GND, VL, or REF
V
V
V
THM low - temp or high-temp current
V
I
V
V
SINK
BST
SETOUT
BATT
SETIN
THM
CSSN
CSSN
FASTCHG
SHDN
= V
= 5mA
= 1.4V
DCIN
DCIN
< 2.4V per cell
= V
= 18V, V
= 18V, V
= GND
LX
= V
, V
REF
+ 4.5V
< 28V
< 28V
Stand-Alone, Switch-Mode
REF
OSC
FULLCHG
/ 10
CONDITIONS
CONDITIONS
SHDN
SHDN
/ 10
, V
= V
= V
FAULT
VL
VL
, V
, V
CELL
= 28V,
CELL
= GND, V
= GND, V
BATT
BATT
4.166
4.158
1.386
46.2
MIN
-0.8
MIN
260
100
100
5.1
2.2
1.3
85
-1
6
0
5
= V
= V
CS
CS
= 4.2V, V
= 4.2V, V
TYP
TYP
A
= +25°C.)
4.242
4.242
1.414
MAX
MAX
VADJ
VADJ
51.5
340
450
200
200
115
5.7
3.2
0.8
1.7
0.5
28
19
15
6
2
1
1
= V
= V
UNITS
UNITS
V/cell
REF
REF
kHz
mΩ
mV
mA
mA
mV
mV
µA
µA
%
Ω
A
A
V
V
V
V
V
V
/ 2,
/ 2,
5