MAX1645-MAX1645A Maxim, MAX1645-MAX1645A Datasheet - Page 6

• Manufacturer Part Number: MAX1645-MAX1645A
• Description: Advanced Chemistry-Independent / Level 2 Battery Chargers with Input Current Limiting
• Manufacturer: Maxim

Advanced Chemistry-Independent, Level 2
Battery Chargers with Input Current Limiting
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
6
PDL Turn-On Resistance
CVS Input Bias Current
ERROR AMPLIFIER SPECIFICATIONS
BATT Full-Charge Voltage
BATT Charge Current (Note 3)
DCIN Source Current Limit
(Note 3)
BATT Undervoltage Charge
Current
BATT/CSIP/CSIN Input Voltage
Range
Total BATT Input Bias Current
Total BATT Quiescent Current
Total BATT Standby Current
CSSP/Input Bias Current
CSSN Input Bias Current
CSSP/CSSN Quiescent Current
Battery Voltage-Error Amp DC
Gain
CLS Input Bias Current
Battery Voltage-Error Amp
Transconductance
Battery Current-Error Amp
Transconductance
Input Current-Error Amp
Transconductance
CCV/CCI/CCS Clamp Voltage
(Note 4)
DC-TO-DC CONVERTER SPECIFICATIONS
Minimum Off-Time
Maximum On-Time
Maximum Duty Cycle
_______________________________________________________________________________________
PARAMETER
DD
= +3.3V, V
BATT
SYMBOL
t
t
OFF
V0
ON
I0
= +16.8V, V
PDL to GND
V
ChargingVoltage() = 0x41A0
ChargingVoltage() = 0x3130
ChargingVoltage() = 0x20D0
ChargingVoltage() = 0x1060
R
R
V
Total of I
V
Total of I
V
Total of I
V
V
V
V
From BATT to CCV
V
From BATT to CCV, ChargingVoltage() =
0x41A0, V
From CSIP/CSIN to CCI, ChargingCurrent() =
0x0BC0, V
From CSSP/CSSN to CCS, V
V
V
CVS
BATT
BATT
BATT
BATT
CSSP
CSSP
CSSP
CLS
CSSP
CCV
CSI
CSS
DCIN
= 50mΩ
= V
= 28V
= 40mΩ
= V
= 1V, R
= 0 to 20V
= 0 to 20V, charge inhibited
= 0 to 20V, V
= V
= V
= V
- V
BATT
BATT
BATT
= +18V, T
REF
CCI
CSSN
BATT
CSSN
CSSN
CSSN
CSIP
/2 to V
, I
, I
, I
= V
CSI
CSIP,
CSIP,
CSIP,
= 102.4mV
= 16.8V
-V
CONDITIONS
= V
= V
= 28V, V
CCS
CSIN
= 50mΩ
A
REF
DCIN
DCIN
DCIN
and I
and I
and I
= -40°C to +85°C, unless otherwise noted. Guaranteed by design.)
= 0.25V to 2V
= 150.4mV
ChargingCurrent() =
0x0BC0
ChargingCurrent() =
0x0080
V
V
DCIN
= 0
= 28V
= 28V
CLS
CLS
CSIN
CSIN
CSIN
CLS
= 4.096V
= 2.048V
= 0
;
;
;
= 2.048V,
16.532
12.391
8.266
4.124
2.608
4.358
2.054
0.111
-700
-100
-100
-100
MIN
15.2
200
150
0.5
0.5
50
20
99
-5
-1
-1
0
1
5
17.068
12.793
8.534
4.260
3.408
240.8
5.882
3.006
0.444
MAX
1000
150
200
700
100
100
600
1.5
20
20
15
5
1
1
2
2
UNITS
µA/mV
µA/mV
µA/mV
mA
mA
V/V
mV
ms
kΩ
µA
µA
µA
µA
µA
µA
µA
µA
µs
%
V
A
A
V