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参数资料
| 型号： | LT1512CN8#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.7 A BATTERY CHARGE CONTROLLER, 580 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封装： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件页数： | 7/12页 |
| 文件大小： | 143K |
| 代理商： | LT1512CN8#TR |
LT1512
4
1512fa
TYPICAL PERFORMANCE CHARACTERISTICS
SWITCH CURRENT (A)
0
SWITCH
SA
TURA
TION
VOL
TAGE
(V)
0.6
0.8
1.0
1.6
1512 G01
0.4
0.2
0.5
0.7
0.9
0.3
0.1
0
0.4
0.8
1.2
2.0
1.4
0.2
0.6
1.0
1.8
100°C
150°C
25°C
–55°C
DUTY CYCLE (%)
SWITCH
CURRENT
LIMIT
(A)
3.0
2.5
2.0
1.5
1.0
0.5
0
20
40
60
80
1512 G02
100
10
0
30
50
70
90
25°C AND
125°C
–55°C
TEMPERATURE (°C)
–50
1.8
INPUT
VOLTAGE
(V)
2.0
2.2
2.4
2.6
050
100
150
1512 G03
2.8
3.0
–25
25
75
125
TEMPERATURE (°C)
–50
0
MINIMUM
SYNCHRONIZATION
VOLTAGE
(V
P-P
)
0.5
1.0
1.5
2.0
050
100
150
1512 G04
2.5
3.0
–25
25
75
125
fSYNC = 700kHz
TEMPERATURE (°C)
–50
FEEDBACK
INPUT
CURRENT
(nA)
400
500
600
150
1512 G05
300
200
0
50
100
800
700
–25
25
75
125
VFB = VREF
TEMPERATURE (°C)
–50
NEGATIVE
FEEDBACK
INPUT
CURRENT
(μA)
–30
0
50
75
1512 G06
–40
–10
–20
–25
25
100 125
150
Minimum Peak-to-Peak
Synchronization Voltage vs Temp
Feedback Input Current
vs Temperature
Negative Feedback Input Current
vs Temperature
Switch Saturation Voltage
vs Switch Current
Switch Current Limit
vs Duty Cycle
Minimum Input Voltage
vs Temperature
VC: The compensation pin is primarily used for frequency
compensation, but it can also be used for soft starting and
current limiting. It is the output of the error amplier and
the input of the current comparator. Peak switch current
increases from 0A to 1.8A as the VC voltage varies from
1V to 1.9V. Current out of the VC pin is about 200μA when
the pin is externally clamped below the internal 1.9V clamp
level. Loop frequency compensation is performed with a
capacitor or series RC network from the VC pin directly to
the ground pin (avoid ground loops).
FB: The feedback pin is used for positive output voltage
sensing. This pin is the inverting input to the voltage
error amplier. The R1/R2 voltage divider connected to
FB denes Li-Ion oat voltage at full charge, or acts as a
voltage limiter for NiCd or NiMH applications. Input bias
current is typically 300nA, so divider current is normally
set to 100μA to swamp out any output voltage errors due
to bias current. The noninverting input of this amplier is
tied internally to a 1.245V reference. The grounded end of
the output voltage divider should be connected directly to
the LT1512 ground pin (avoid ground loops).
PIN FUNCTIONS
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| LT1512CS8#PBF | 功能描述:IC BATT CHRGR CONST I/V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LT1512CS8#TR | 功能描述:IC CHARGER BATT CONST V/I 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LT1512CS8#TRPBF | 功能描述:IC BATT CHRGR CONST I/V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LT1512CS8PBF | 制造商:Linear Technology 功能描述:LT1512CS8PBF |
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