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參數(shù)資料
| 型號(hào)： | LTC4011EFE#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, 615 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | 4.40 MM, PLASTIC, TSSOP-20 |
| 文件頁(yè)數(shù)： | 18/24頁(yè) |
| 文件大?。?/td> | 228K |
| 代理商： | LTC4011EFE#PBF |
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3
LTC4011
4011p
The
● 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.
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VTC
BAT – SENSE Top-Off Charge
0.3V < BAT < VCC – 0.3V (Note 5)
6.5
10
13.5
mV
Regulation Voltage
BAT = 4.8V
●
6.5
10
13.5
mV
VLI
BAT – SENSE Line Regulation
5.5V < VCC < 34V, Fast Charge
±0.3
mV
IBAT
BAT Input Bias Current
0.3V < BAT < VCC – 0.1V
–2
2
mA
ISENSE
SENSE Input Bias Current
SENSE = BAT
50
150
A
IOFF
Input Bias Current
SENSE or BAT, VCELL = 0V
●
–1
0
1
A
fTYP
Typical Switching Frequency
●
460
550
615
kHz
fMIN
Minimum Switching Frequency
●
20
30
kHz
DCMAX
Maximum Duty Cycle
98
99
%
VOL(TG)
TGATE Output Voltage Low
VCC > 9V, No Load
●
5
5.6
8.75
V
(VCC – TGATE, Note 7)
VCC < 7.5V, No Load
●
VCC –VCC
V
0.5
VOH(TG)
TGATE Output Voltage High
VCC – TGATE, No Load
●
050
mV
tR(TG)
TGATE Rise Time
CLOAD = 3nF, 10% to 90%
35
100
ns
tF(TG)
TGATE Fall Time
CLOAD = 3nF, 10% to 90%
45
100
ns
VOL(BG)
BGATE Output Voltage Low
No Load
●
050
mV
VOH(BG)
BGATE Output Voltage High
No Load
● INTVDD
INTVDD
V
– 0.075
tR(BG)
BGATE Rise Time
CLOAD = 1.6nF, 10% to 90%
35
65
ns
tF(BG)
BGATE Fall Time
CLOAD = 1.6nF, 10% to 90%
15
65
ns
ADC Inputs
ILEAK
Analog Channel Leakage
0V < VCELL < 2V, 550mV < VTEMP < 2V
±100
nA
Charger Thresholds
VBP
Battery Present Threshold Voltage
●
320
350
370
mV
VBOV
Battery Overvoltage
●
1.85
1.95
2.05
V
VMFC
Minimum Fast Charge Voltage
●
850
900
950
mV
VFCBF
Fast Charge Battery Fault Voltage
●
1.17
1.22
1.27
V
VTERM
–V Termination
CHEM = 3.3V (NiCd)
●
16
20
25
mV
CHEM = 0V (NiMH)
●
610
14
mV
VAR
Automatic Recharge Voltage
VCELL Decreasing
●
1.275
1.325
1.375
V
TTERM
T Termination (Note 8)
CHEM = 3.3 (NiCd)
●
1.3
2
2.7
°C/min
CHEM = 0V (NiMH)
●
0.5
1
1.5
°C/min
TMIN
Minimum Charging Temperature
VTEMP Increasing
●
0.5
5
8.5
°C
(Note 8)
TMAXI
Maximum Charge Initiation
VTEMP Decreasing, Not Charging
●
41.5
45
47
°C
Temperature (Note 8)
TMAXC
Maximum Fast Charge Temperature
VTEMP Decreasing, Fast Charge
●
57
60
63
°C
(Note 8)
VTEMP(D)
VTEMP Disable Threshold Voltage
●
2.8
3.3
V
VTEMP(P)
Pause Threshold Voltage
●
130
280
mV
Charger Timing
tTIMER
Internal Time Base Error
●
–10
10
%
tMAX
Programmable Timer Error
RTIMER = 49.9k
●
–20
20
%
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