参数资料
| 型号： | LT1786FCS#TR |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG SW CCFL SMBUS PROG 16SOIC |
| 标准包装： | 2,500 |
| 应用： | 转换器，CCFL |
| 输入电压： | 4.5 V ~ 30 V |
| 输出数： | 1 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
LT1786F
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V CC = SHUTDOWN = SMBSUS = SCL = SDA = 3.3V,
BAT = Royer = BULB = 12V, I CCFL = CCFL V SW = Open, DIO = I OUT = GND, CCFL V C = 0.5V, unless otherwise specified.
SYMBOL
PARAMETER
CCFL High-Side Sense Servo Current
Line Regulation
CONDITIONS
BAT = 5V to 30V, I CCFL = 100 μ A,
I(V C ) = 0 μ A at CCFL V C = 1.5V
MIN
TYP
0.1
MAX
0.16
UNIT
%/V
CCFL High-Side Sense Supply Current Current Measured into BAT and Royer Pins
q
50
100
150
μ A
BULB Protect Servo Voltage
I CCFL = 100 μ A, I(V C ) = 0 μ A at CCFL V C = 1.5V,
q
6.5
7.0
7.5
V
Servo Voltage Measured between BAT and BULB Pins
BULB Input Bias Current
I CCFL = 100 μ A, I(V C ) = 0 μ A at CCFL V C = 1.5V
5
9
μ A
I LIM
V SAT
? I Q
? I SW
CCFL Switch Current Limit
CCFL Switch On Resistance
Supply Current Increase During
CCFL Switch On Time
Duty Cycle = 50%
Duty Cycle = 75% (Note 4)
CCFL I SW = 1A
CCFL I SW = 1A
q
q
q
1.25
0.9
1.9
1.6
0.6
20
3.0
2.6
1.0
30
A
A
?
mA/A
DAC Resolution
6
Bits
DAC Full-Scale Current
DAC Zero Scale Current
DAC Differential Nonlinearity
DAC Supply Voltage Rejection
V(I OUT ) = 0.465V
V(I OUT ) = 0.465V
3V ≤ V CC ≤ 6.5V, I OUT = Full Scale, V(I OUT ) = 0.465V
q
q
q
q
98
96
100
100
± 0.1
0.2
102
104
± 200
± 1
2
μ A
μ A
nA
LSB
LSB
I IN
V IH
V IL
V OL
Logic Input Current
High Level Input Voltage
Low Level Input Voltage
Low Level Output Voltage
0V ≤ V IN ≤ V CC
ADR
SMBSUS
SCL, SDA
SMBSUS, ADR
SCL, SDA
I OUT = 3mA, SDA Only
I OUT = 1.6mA, SMBSUS = 0V, Measured at SHDN Pin
q
q
q
q
q
q
q
q
V CC – 0.3
2.4
1.4
± 1
0.8
0.6
0.4
0.4
μ A
V
V
V
V
V
V
V
SMBus Timing (Notes 5, 6)
f SMB
t BUF
t HD:STA
t SU:STA
t SU:STO
t HD:DAT
t SU:DAT
t LOW
t HIGH
t f
t r
SMB Operating Frequency
Bus Free Time Between Stop and Start Condition
Hold Time After (Repeated) Start Condition
Repeated Start Condition Setup Time
Stop Condition Setup Time
Data Hold Time
Data Setup Time
Clock Low Period
Clock High Period
Clock/Data Fall Time
Clock/Data Rise Time
q
q
q
q
q
q
q
q
q
q
q
10
4.7
4.0
4.7
4.0
300
250
4.7
4.0
100
50
300
1000
kHz
μ s
μ s
μ s
μ s
ns
ns
μ s
μ s
ns
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: T J is calculated from the ambient temperature T A and power
dissipation P D according to the following formula:
LT1786FCS: T J = T A + (P D )(100 ° C/W)
Note 3: Does not include switch leakage.
Note 4: For duty cycles (DC) between 50% and 80%, minimum
guaranteed switch current is given by I LIM = 1.4(1.393 – DC) for the
LT1786F due to internal slope compensation circuitry.
Note 5 : Timings for all signals are referenced to V IH and V IL signals.
Note 6 : These parameters are guaranteed by design and are not tested in
production. Refer to the Timing Diagrams for additional information.
3
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相关代理商/技术参数 |
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| LT1787 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Precision, High Side Current Sense Amplifiers |
| LT1787_1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Precision, High Side Current Sense Amplifiers |
| LT1787CMS8 | 功能描述:IC AMP PREC CURRENT SENSE 8MSOP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
| LT1787CMS8#PBF | 功能描述:IC AMP PREC CURRENT SENSE 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
| LT1787CMS8#TR | 功能描述:IC AMP PREC CURRENT SENSE 8MSOP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
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