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参数资料
| 型号： | LTC4009IUF-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/28页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER BATTERY MC 20-QFN |
| 标准包装： | 91 |
| 功能： | 充电管理 |
| 电池化学： | 多化学 |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 125°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 裸露焊盘（4x4） |
| 包装： | 管件 |
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LTC4009
LTC4009-1/LTC4009-2
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. DCIN = 20V, BAT = 12V, GND = 0 V unless otherwise noted. (Note 2)
SYMBOL
V IH
PARAMETER
SHDN Input Voltage High
CONDITIONS
l
MIN
1.4
TYP
MAX
UNITS
V
R IN
SHDN Pull-Down Resistance
50
k Ω
I DCS
DCIN Shutdown Current
SHDN = 0V
215
μA
I CLPS
CLP Shutdown Current
CLP = 12V, SHDN = 0V or DCDIV = 0V
l
9
18
μA
I LEAK-BAT
I LEAK-CSN
I LEAK-CSP
I LEAK-SW
BAT Leakage Current
CSN Leakage Current
CSP Leakage Current
SW Leakage Current
SHDN = 0V or DCDIV = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
SHDN = 0V or DCDIV = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
SHDN = 0V or DCDIV = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
SHDN = 0V or DCDIV = 0V,
0V ≤ SW ≤ 20V
l
l
l
l
–1.5
–1.5
–1.5
–1
0
0
0
0
1.5
1.5
1.5
2
μA
μA
μA
μA
INTV DD Regulator
INTV DD
? V DD
I DD
Output Voltage
Load Regulation
Short-Circuit Current (Note 6)
No Load
I DD = 20mA
INTV DD = 0V
l
4.85
50
5
–0.4
85
5.15
–1
130
V
%
mA
Switching Regulator
V CE
Charge Enable Threshold Voltage
CLP – BAT, CLP Rising
C-Grade
I-Grade
l
l
65
60
100
135
140
mV
mV
I ITH
ITH Current
ITH = 1.4V
–40/+90
μA
f TYP
Typical Switching Frequency
467
550
633
kHz
f MIN
DC MAX
Minimum Switching Frequency
Maximum Duty Cycle
C LOAD = 3.3nF
C LOAD = 3.3nF
20
98
25
99
kHz
%
t R-TG
t F-TG
t R-BG
t F-BG
t NO
TGATE Rise Time
TGATE Fall Time
BGATE Rise Time
BGATE Fall Time
TGATE, BGATE Non-Overlap Time
C LOAD = 3.3nF, 10% – 90%
C LOAD = 3.3nF, 90% – 10%
C LOAD = 3.3nF, 10% – 90%
C LOAD = 3.3nF, 90% – 10%
C LOAD = 3.3nF, 10% – 10%
60
50
60
60
110
110
110
110
110
ns
ns
ns
ns
ns
Float Voltage Select Inputs (LTC4009-1/LTC4009-2 Only)
V IL
V IH
Input Voltage Low
Input Voltage High
3.5
0.5
V
V
I IN
Input Current
0V ≤ V IN ≤ 5V
–10
10
μA
Indicator Outputs
V OL
Output Voltage Low
I LOAD = 100μA, PROG = 1.2V
500
mV
I LEAK
Output Leakage
SHDN = 0V, DCDIV = 0V, V OUT = 20V
l
–10
10
μA
I C10
CHRG C/10 Current Sink
CHRG = 2.5V
l
15
25
38
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC4009C is guaranteed to meet performance specifications
over the 0°C to 85°C operating temperature range. The LTC4009I is
guaranteed to meet performance specifications over the –40°C to 125°C
operating temperature range.
Note 3: Operating junction temperature T J (in °C) is calculated from
the ambient temperature T A and the total continuous package power
dissipation P D (in watts) by the formula T J = T A + ( θ JA ? PD). Refer to the
Applications Information section for details.
Note 4: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to GND, unless otherwise
specified.
Note 5: This threshold is guaranteed to be satisfied if CLP = DCIN when
the LTC4009 exits shutdown.
Note 6: Output current may be limited by internal power dissipation. Refer
to the Applications Information section for details.
4009fd
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