参数资料
型号: LTC4155IUFD#TRPBF
厂商: Linear Technology
文件页数: 5/52页
文件大小: 0K
描述: IC I2C POWER MANAGER DUAL 28QFN
标准包装: 2,500
系列: PowerPath™
功能: 充电管理,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 ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-QFN(4x5)
包装: 带卷 (TR)
LTC4155
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T A ≈ T J = 25°C (Note 2). V BUS = 5V, BATSNS = 3.7V, DVCC = 3.3V,
R CLPROG1 = R CLPROG2 = 1.21k, R PROG = 499Ω, unless otherwise noted.
SYMBOL
I VOUT
PARAMETER
V OUT Current Available Before
CONDITIONS
2.5mA I VBUS Mode (USB Suspend)
MIN
1
TYP
1.3
MAX
UNITS
mA
Loading Battery
100mA I VBUS Mode, BAT = 3.3V
500mA I VBUS Mode, BAT = 3.3V
600mA I VBUS Mode, BAT = 3.3V
700mA I VBUS Mode, BAT = 3.3V
800mA I VBUS Mode, BAT = 3.3V
900mA I VBUS Mode, BAT = 3.3V
1.00A I VBUS Mode, BAT = 3.3V
1.25A I VBUS Mode, BAT = 3.3V
1.50A I VBUS Mode, BAT = 3.3V
1.75A I VBUS Mode, BAT = 3.3V
2.00A I VBUS Mode, BAT = 3.3V
2.25A I VBUS Mode, BAT = 3.3V
2.50A I VBUS Mode, BAT = 3.3V
2.75A I VBUS Mode, BAT = 3.3V
3.00A I VBUS Mode, BAT = 3.3V
76
673
810
944
1093
1200
1397
1728
2072
2411
2700
2846
3154
3408
3657
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
V PROG
PROG Pin Servo Voltage
12.50% Charge Current Mode
18.75% Charge Current Mode
25.00% Charge Current Mode
31.25% Charge Current Mode
37.50% Charge Current Mode
43.75% Charge Current Mode
50.00% Charge Current Mode
56.25% Charge Current Mode
62.50% Charge Current Mode
68.75% Charge Current Mode
75.00% Charge Current Mode
81.25% Charge Current Mode
87.50% Charge Current Mode
93.75% Charge Current Mode
100.0% Charge Current Mode (Default)
150
225
300
375
450
525
600
675
750
825
900
975
1050
1125
1200
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V RECHRG
Recharge Battery Threshold
Threshold Voltage Relative to V FLOAT
96.6
97.6
98.4
%
Voltage
t TERMINATE
V LOWBAT
Safety Timer Termination Period
Selected by I 2 C Control. Timer
Starts When BATSNS ≥ V FLOAT
Threshold Voltage
1-Hour Mode
2-Hour Mode
4-Hour Mode (Default)
8-Hour Mode
Rising Threshold
0.95
1.90
3.81
7.63
2.65
1.06
2.12
4.24
8.48
2.8
1.17
2.33
4.66
9.32
2.95
Hours
Hours
Hours
Hours
V
Hysteresis
130
mV
t BADBAT
V C/x
Bad Battery Termination Time
Full Capacity Charge Indication
PROG Voltage Selected by I 2 C
Control
BATSNS < (V LOWBAT – ΔV LOWBAT )
C/10 Mode (I CHARGE = 10%FS) (Default)
C/5 Mode (I CHARGE = 20%FS)
C/20 Mode (I CHARGE = 5%FS)
C/50 Mode (I CHARGE = 2%FS)
0.47
110
230
15
50
0.53
120
240
24
60
0.59
130
250
33
70
Hours
mV
mV
mV
mV
h PROG
Ratio of I CHGSNS to PROG Pin
1000
mA/mA
Current
h CLPROG1
Ratio of Measured V BUS Current to
CLPROG1 I VBUS Mode
990
mA/mA
(Note 4)
CLPROG1 Sense Current
4155fc
5
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