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参数资料
| 型号： | LTC4055EUF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC USB PWR MNGR BATT CHRGR 16QFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 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： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（4x4） |
| 包装： | 带卷 (TR) |
LTC4055/LTC4055-1
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2, 3, 4, 5)
Terminal Voltage
IN1, IN2, OUT, BAT .................................. –0.3V to 6V
NTC, V NTC , TIMER,
PIN CONFIGURATION
TOP VIEW
16 15 14 13
PROG, CLPROG ..................... –0.3V to (VCC + 0.3V)
CHRG , HPWR, SUSP, SHDN,
WALL, ACPR ........................................... –0.3V to 6V
IN2 1
BAT 2
OUT 3
17
12 TIMER
11 PROG
10 GND
IN2 ........................................................... V IN1 + 0.1V
Pin Current (DC)
IN1 4
5
6
7
8
9 CLPROG
IN1, IN2, OUT, BAT (Note 7) ............................... 1.6A
Operating Temperature Range................. –40°C to 85°C
Maximum Operating Junction Temperature ......... 125°C
Storage Temperature Range.................. –65°C to 125°C
ORDER INFORMATION
UF PACKAGE
16-LEAD (4mm 4mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 37°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LTC4055EUF#PBF
LTC4055EUF-1#PBF
TAPE AND REEL
LTC4055EUF#TRPBF
LTC4055EUF-1#TRPBF
PART MARKING
4055
40551
PACKAGE DESCRIPTION
16-Lead (4mm × 4mm) Plastic QFN
16-Lead (4mm × 4mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN1 = V IN2 = 5V, V BAT = 3.5V, HPWR = 5V, WALL = 0V,
R PROG = R CLPROG = 100k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN
V BAT
I IN
I OUT
I BAT
I LIM(MAX)
Input Supply Voltage
Input Voltage
Input Supply Current
Output Supply Current
Battery Drain Current
Maximum Current Limit
IN1, IN2 and OUT
BAT
V BAT = 4.2V
Suspend Mode
Suspend Mode, Wall = 2V, V OUT = 4.8V
Shutdown
V OUT = 5V, V IN1 = V IN2 = 0V, V BAT = 4.2V
V BAT = 4.2V, Charging Stopped
Suspend Mode
Shutdown
V IN1 = V IN2 = 0V, BAT Powers OUT, No Load
(Note 8)
l
l
l
l
l
l
l
l
l
l
l
4.35
0.8
50
0.1
10
450
15
15
2.5
50
1
5.5
4.3
1.6
100
0.2
20
900
30
30
5
100
V
V
mA
μA
mA
μA
μA
μA
μA
μA
μA
A
V UVLO
Input or Output Undervoltage Lockout
V IN Powers Part, Rising Threshold
V OUT Powers Part, Rising Threshold
l
l
3.5
3.5
3.8
3.8
4
4
V
V
ΔV UVLO
Input or Output Undervoltage Lockout
V IN Rising – V IN Falling or
125
mV
Hysteresis
V OUT Rising – V OUT Falling
4055fb
2
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