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参数资料
| 型号： | LTC4068XEDD-4.2#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER BATT LI-ON 8-DFN |
| 标准包装： | 121 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.25 V ~ 6.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
LTC4068-4.2/LTC4068X-4.2
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Input Supply Voltage (V CC ) ....................... –0.3V to 10V
TOP VIEW
ORDER PART
PROG, ITERM ................................ – 0.3V to V CC + 0.3V
BAT ............................................................. –0.3V to 7V
CHRG, ACPR, EN ...................................... –0.3V to 10V
BAT Short-Circuit Duration .......................... Continuous
BAT Pin Current ........................................................ 1A
ITERM 1
BAT 2
CHRG 3
GND 4
9
8
7
6
5
EN
ACPR
V CC
PROG
NUMBER
LTC4068EDD-4.2
LTC4068XEDD-4.2
PROG Pin Current ................................................... 1mA
Maximum Junction Temperature .......................... 125 ° C
Operating Temperature Range (Note 2) .. – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 125 ° C
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T JMAX = 125 ° C, θ JA = 40 ° C/W (NOTE 3)
EXPOSED PAD IS GROUND (PIN 9)
MUST BE SOLDERED TO PCB
DD PART MARKING
LBHZ
LBQB
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V CC = 5V, unless otherwise noted.
SYMBOL
V CC
I CC
PARAMETER
Input Supply Voltage
Input Supply Current
CONDITIONS
Charge Mode (Note 4), R PROG = 10k
Standby Mode (Charge Terminated)
Shutdown Mode (EN = 5V, V CC < V BAT
●
●
●
●
MIN
4.25
TYP
0.4
200
25
MAX
6.5
1
500
50
UNITS
V
mA
μ A
μ A
or V CC < V UV )
V FLOAT
Regulated Output (Float) Voltage
0 ° C ≤ T A ≤ 85 ° C, 4.3V < V CC < 6.5V
4.158
4.2
4.242
V
I BAT
BAT Pin Current
R PROG = 10k, Current Mode
R PROG = 2k, Current Mode
●
●
92
465
100
500
105
535
mA
mA
Standby Mode, V BAT = 4.2V
Shutdown Mode (EN = 5V, V CC < V BAT or
●
–2.5
± 1
–6
± 2
μ A
μ A
V CC < V UV )
Sleep Mode, V CC = 0V
± 1
± 2
μ A
I TRIKL
V TRIKL
Trickle Charge Current
Trickle Charge Threshold Voltage
V BAT < V TRIKL , R PROG = 2k (Note 5)
R PROG = 10k, V BAT Rising (Note 5)
●
30
2.8
45
2.9
60
3
mA
V
V TRHYS
Trickle Charge Hysteresis Voltage
R PROG = 10k (Note 5)
80
mV
V UV
V UVHYS
V EN(IL)
V EN(IH)
V CC Undervoltage Lockout Voltage
V CC Undervoltage Lockout Hysteresis
EN Pin Input Low Voltage
EN Pin Input High Voltage
From V CC Low to High
●
●
●
●
3.7
150
0.4
3.8
200
0.7
0.7
3.92
300
1
V
mV
V
V
R EN
V ASD
EN Pin Pull-Down Resistor
V CC – V BAT Lockout Threshold
V CC from Low to High
V CC from High to Low
●
1.2
70
5
2
100
30
5
140
50
M ?
mV
mV
I TERM
V PROG
V CHRG
V ACPR
? V RECHRG
Charge Termination Current Threshold
PROG Pin Voltage
CHRG Pin Output Low Voltage
ACPR Pin Output Low Voltage
Recharge Battery Threshold Voltage
R TERM = 1k
R TERM = 5k
R PROG = 10k, Current Mode
I CHRG = 5mA
I ACPR = 5mA
V FLOAT – V RECHRG , 0 ° C ≤ T A ≤ 85 ° C
●
●
90
17.5
0.93
60
100
20
1
0.35
0.35
100
110
22.5
1.07
0.6
0.6
140
mA
mA
V
V
V
mV
406842fa
2
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