参数资料
型号: LTC4098EUDC#TRPBF
厂商: Linear Technology
文件页数: 3/32页
文件大小: 0K
描述: IC CHARGER USB COMP 20-UTQFN
标准包装: 2,500
系列: Bat-Track™, PowerPath™
功能: 电源管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.35 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WFQFN 裸露焊盘
供应商设备封装: 20-QFN-EP(3x4)
包装: 带卷 (TR)
LTC4098/LTC4098-1
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V BUS = 5V, BAT = 3.8V, R CLPROG = 3.01k, unless otherwise noted.
SYMBOL
I VOUT
PARAMETER
V OUT Current Available Before
Discharging Battery
CONDITIONS
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
MIN
TYP
135
659
MAX
UNITS
mA
mA
10x Mode, BAT = 3.3V
1231
mA
Low Power Suspend Mode
High Power Suspend Mode
0.26
1.6
0.32
2.04
0.41
2.46
mA
mA
V CLPROG
CLPROG Servo Voltage in Current Limit
1x, 5x, 10x Modes
Suspend Modes
1.188
100
V
mV
V UVLO
V DUVLO
V OUT
f OSC
V BUS Undervoltage Lockout
V BUS to BAT Differential Undervoltage
Lockout
V OUT Voltage
Switching Frequency
Rising Threshold
Falling Threshold
Rising Threshold
Falling Threshold
1x, 5x, 10x Modes, 0V < BAT ≤ 4.2V,
I VOUT = 0mA, Battery Charger Off
USB Suspend Modes, I VOUT = 250μA
3.95
3.5
4.5
1.96
4.30
4.00
200
50
BAT + 0.3
4.6
2.25
4.35
4.7
4.7
2.65
V
V
mV
mV
V
V
MHz
R PMOS
R NMOS
PMOS On-Resistance
NMOS On-Resistance
0.18
0.30
Ω
Ω
I PEAK
R SUSP
Peak Inductor Current Clamp
Suspend LDO Output Resistance
1x Mode
5x Mode
10x Mode
1.2
1.7
3
15
A
A
A
Ω
Bat-Track External Switching Regulator Control
V WALL
Δ V WALL
Absolute WALL Input Threshold
Differential WALL Input Threshold
Rising Threshold
Falling Threshold
WALL-BAT Rising Threshold
WALL-BAT Falling Threshold
4.2
0
4.3
3.2
90
30
4.4
45
V
V
mV
mV
Regulation Target
WALL Quiescent Current
ACPR High Voltage
ACPR Low Voltage
I ACPR = 0mA
I ACPR = 0mA
3.5
BAT + 0.3
100
V OUT
0
V
μA
V
V
Overvoltage Protection
V OVP
V OVGATE
t RISE
Overvoltage Protection Threshold
OVGATE Output Voltage
OVGATE Time to Reach Regulation
Rising Threshold, R OVSENS = 6.04k
Input Below V OVP
Input Above V OVP
C OVGATE = 1nF
6.20
6.35
1.88 ? V OVSENSE
0
2.2
6.50
12
V
V
V
ms
Battery Charger
V FLOAT
I CHG
I BAT
LTC4098 BAT Regulated Output Voltage
LTC4098-1 BAT Regulated Output
Voltage
Constant-Current Mode Charge Current
Battery Drain Current
0°C ≤ T A ≤ 85°C
0°C ≤ T A ≤ 85°C
R PROG = 1k, 10x Mode
R PROG = 5k, 5x, 10x Modes
V BUS > V UVLO , PowerPath Switching
Regulator On, Battery Charger Off,
4.179
4.165
4.080
4.066
980
192
4.200
4.200
4.100
4.100
1030
206
3.7
4.221
4.235
4.121
4.134
1080
220
5
V
V
V
V
mA
mA
μA
I VOUT = 0μA
V BUS = 0V, I VOUT = 0μA (Ideal Diode
Mode)
25
35
μA
40981fc
3
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