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参数资料
| 型号： | LT1513IR#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR CONST/PROG I/V 7DD |
| 标准包装： | 50 |
| 功能： | 充电管理 |
| 电池化学： | 所有电池类型 |
| 电源电压： | 2.7 V ~ 25 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-8，D²Pak（7 引线+接片），TO-263CA |
| 供应商设备封装： | D2PAK-7 |
| 包装： | 管件 |
| 产品目录页面： | 1340 (CN2011-ZH PDF) |
LT1513/LT1513-2
ELECTRICAL C HARA C TERISTICS
V IN = 5V, V C = 0.6V, V FB = V REF , I FB = 0V, V SW and S/S pins open, unless otherwise noted.
SYMBOL
PARAMETER
Error Amplifier Clamp Voltage
CONDITIONS
High Clamp, V FB = 1V
Low Clamp, V FB = 1.5V
MIN
1.70
0.25
TYP
1.95
0.40
MAX
2.30
0.52
UNITS
V
V
A V
Error Amplifier Voltage Gain
500
V/ V
V C Pin Threshold
Duty Cycle = 0%
0.8
1
1.25
V
f
Switching Frequency
Maximum Switch Duty Cycle
2.7V ≤ V IN ≤ 25V
0 ° C ≤ T J ≤ 125 ° C
T J < 0 ° C
q
450
430
400
85
500
500
95
550
580
580
kHz
kHz
kHz
%
Switch Current Limit Blanking Time
130
260
ns
BV
Output Switch Breakdown Voltage
0 ° C ≤ T J ≤ 125 ° C
T J < 0 ° C
40
35
47
V
V
V SAT
Output Switch ON Resistance
I SW = 2A
q
0.25
0.45
?
I LIM
Switch Current Limit
Duty Cycle = 50%
Duty Cycle = 80% (Note 1)
q
q
3.0
2.6
3.8
3.4
5.4
5.0
A
A
? I IN / ? I SW Supply Current Increase During Switch ON Time
Control Voltage to Switch Current
15
4
25
mA/A
A/V
Transconductance
Minimum Input Voltage
q
2.4
2.7
V
I Q
Supply Current
Shutdown Supply Current
2.7V ≤ V IN ≤ 25V
2.7V ≤ V IN ≤ 25V, V S/S ≤ 0.6V, T J ≥ 0 ° C
T J < 0 ° C
q
q
4
12
5.5
30
50
mA
μ A
μ A
Shutdown Threshold
Shutdown Delay
S/S Pin Input Current
Synchronization Frequency Range
2.7V ≤ V IN ≤ 25V
0V ≤ V S/S ≤ 5V
q
q
q
q
0.6
5
– 10
600
1.3
12
2
25
15
800
V
μ s
μ A
kHz
The q denotes specifications which apply over the full operating
temperature range.
Note 1: For duty cycles (DC) between 50% and 85%, minimum
guaranteed switch current is given by I LIM = 1.33 (2.75 – DC).
Note 2: The I FB pin is servoed to its regulating state with V C = 0.8V.
Note 3: Consult factory for grade selected parts.
Note 4: The I FB pin is sevoed to regulate FB to 1.245V
sn1513 1513fas
3
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