4010CFE View Datasheet(PDF) - Linear Technology
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Description
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4010CFE Datasheet PDF : 24 Pages
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LTC4010
Electrical Characteristics The l indicates specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 12V, BAT = 4.8V, GND = PGND = 0V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
PWM Current Source
VFS
BAT – SENSE Full-Scale Regulation
0.3V < BAT < VCC – 0.3V (Note 8)
95
100
105
mV
Voltage (Fast Charge)
BAT = 4.8V
l 95
100
105
mV
VPC
BAT – SENSE Precharge Regulation
0.3V < BAT < VCC – 0.3V (Note 8)
16
20
24
mV
Voltage
BAT = 4.8V
l 16
20
24
mV
VTC
BAT – SENSE Top-Off Charge
0.3V < BAT < VCC – 0.3V (Note 8)
6.5
10
13.5
mV
Regulation Voltage
BAT = 4.8V
l 6.5
10
13.5
mV
∆VLI
IBAT
ISENSE
IOFF
BAT – SENSE Line Regulation
BAT Input Bias Current
SENSE Input Bias Current
Input Bias Current, (VCELL = 0V)
5.5V < VCC < 25V, Fast Charge
0.3V < BAT < VCC – 0.1V
SENSE = BAT
SENSE
BAT
±0.3
mV
–2
2
mA
50
150
µA
l –1
0
1
µA
l
0
2
6
µA
fTYP
fMIN
DCMAX
VOL(TG)
VOH(TG)
tR(TG)
tF(TG)
VOL(BG)
VOH(BG)
Typical Switching Frequency
Minimum Switching Frequency
Maximum Duty Cycle
TGATE Output Voltage Low
(VCC – TGATE) (Note 6)
TGATE Output Voltage High
TGATE Rise Time
TGATE Fall Time
BGATE Output Voltage Low
BGATE Output Voltage High
VCC > 9V, No Load
VCC < 7V, No Load
VCC – TGATE, No Load
CLOAD = 3nF, 10% to 90%
CLOAD = 3nF, 10% to 90%
No Load
No Load
l 460
550
640
kHz
l 20
30
kHz
98
99
%
l
5
5.6
8.75
V
l VCC – 0.5 VCC
V
l
0
50
mV
35
100
ns
45
100
ns
l
0
50
mV
l INTVDD INTVDD
V
– 0.075
tR(BG)
tF(BG)
ADC Inputs
BGATE Rise Time
BGATE Fall Time
CLOAD = 1.6nF, 10% to 90%
CLOAD = 1.6nF, 10% to 90%
30
80
ns
15
80
ns
ILEAK
Analog Channel Leakage
Charger Thresholds
0V < VCELL < 2V
±100
nA
VBP
VBOV
VMFC
VFCBF
∆VTERM
Battery Present Threshold Voltage
Battery Overvoltage
Minimum Fast Charge Voltage
Fast Charge Battery Fault Voltage
–∆V Termination
CHEM OPEN (NiCd)
CHEM = 0V (NiMH)
l 320
350
370
mV
l 1.815 1.95 2.085
V
l 850
900
950
mV
l 1.17 1.22 1.27
V
l 16
20
25
mV
l
6
10
14
mV
VAR
∆TTERM
Automatic Recharge Voltage
∆T Termination (Note 7)
VCELL Decreasing
CHEM = 3.3V (NiCd)
CHEM = 0V (NiMH)
l 1.260
l 1.3
l 0.5
1.325
2
1
1.390
2.7
1.5
V
°C/min
°C/min
TMIN
Minimum Charging Temperature
VTEMP Increasing
(Note 7)
l
0
5
9
°C
TMAXI
Maximum Charge Initiation
Temperature (Note 7)
VTEMP Decreasing, Not Charging
l 41.5
45
47
°C
TMAXC
Maximum Charging Temperature
(Note 7)
VTEMP Decreasing, Charging
l 57
60
63
°C
VTEMP(D)
VTEMP(P)
VTEMP Disable Threshold Voltage
Pause Threshold Voltage
l 2.8
l 130
3.3
V
280
mV
4010fb
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