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参数资料
型号： LTC4098EUDC#PBF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 稳压器
英文描述： BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20
封装： 4 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件页数： 23/32页
文件大小： 443K
代理商： LTC4098EUDC#PBF
LTC4098/LTC4098-1
3
40981fc
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IVOUT
VOUT Current Available Before
Discharging Battery
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Low Power Suspend Mode
High Power Suspend Mode
0.26
1.6
135
659
1231
0.32
2.04
0.41
2.46
mA
VCLPROG
CLPROG Servo Voltage in Current Limit
1x, 5x, 10x Modes
Suspend Modes
1.188
100
V
mV
VUVLO
VBUS Undervoltage Lockout
Rising Threshold
Falling Threshold
3.95
4.30
4.00
4.35
V
VDUVLO
VBUS to BAT Differential Undervoltage
Lockout
Rising Threshold
Falling Threshold
200
50
mV
VOUT
VOUT Voltage
1x, 5x, 10x Modes, 0V < BAT ≤ 4.2V,
IVOUT = 0mA, Battery Charger Off
3.5
BAT + 0.3
4.7
V
USB Suspend Modes, IVOUT = 250μA
4.5
4.6
4.7
V
fOSC
Switching Frequency
1.96
2.25
2.65
MHz
RPMOS
PMOS On-Resistance
0.18
Ω
RNMOS
NMOS On-Resistance
0.30
Ω
IPEAK
Peak Inductor Current Clamp
1x Mode
5x Mode
10x Mode
1.2
1.7
3
A
RSUSP
Suspend LDO Output Resistance
15
Ω
Bat-Track External Switching Regulator Control
VWALL
Absolute WALL Input Threshold
Rising Threshold
Falling Threshold
4.2
4.3
3.2
4.4
V
ΔVWALL
Differential WALL Input Threshold
WALL-BAT Rising Threshold
WALL-BAT Falling Threshold
0
90
30
45
mV
Regulation Target
3.5
BAT + 0.3
V
WALL Quiescent Current
100
μA
ACPR High Voltage
IACPR = 0mA
VOUT
V
ACPR Low Voltage
IACPR = 0mA
0
V
Overvoltage Protection
VOVP
Overvoltage Protection Threshold
Rising Threshold, ROVSENS = 6.04k
6.20
6.35
6.50
V
VOVGATE
OVGATE Output Voltage
Input Below VOVP
Input Above VOVP
1.88 VOVSENSE
0
12
V
tRISE
OVGATE Time to Reach Regulation
COVGATE = 1nF
2.2
ms
Battery Charger
VFLOAT
LTC4098 BAT Regulated Output Voltage
0°C ≤ TA ≤ 85°C
4.179
4.165
4.200
4.221
4.235
V
LTC4098-1 BAT Regulated Output
Voltage
0°C ≤ TA ≤ 85°C
4.080
4.066
4.100
4.121
4.134
V
ICHG
Constant-Current Mode Charge Current
RPROG = 1k, 10x Mode
RPROG = 5k, 5x, 10x Modes
980
192
1030
206
1080
220
mA
IBAT
Battery Drain Current
VBUS > VUVLO, PowerPath Switching
Regulator On, Battery Charger Off,
IVOUT = 0μA
3.7
5
μA
VBUS = 0V, IVOUT = 0μA (Ideal Diode
Mode)
25
35
μA
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, RCLPROG = 3.01k, unless otherwise noted.
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