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參數(shù)資料
| 型號： | LT1786FCS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 0.1 A FLUORESCENT LIGHT CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 350K |
| 代理商： | LT1786FCS |
3
LT1786F
ELECTRICAL CHARACTERISTICS
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
CONDITIONS
CCFL High-Side Sense Servo Current
BAT = 5V to 30V, I
CCFL
= 100
μ
A,
Line Regulation
I(V
C
) = 0
μ
A at CCFL V
C
= 1.5V
CCFL High-Side Sense Supply Current Current Measured into BAT and Royer Pins
BULB Protect Servo Voltage
I
CCFL
= 100
μ
A, I(V
C
) = 0
μ
A at CCFL V
C
= 1.5V,
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
I
LIM
CCFL Switch Current Limit
Duty Cycle = 50%
Duty Cycle = 75% (Note 3)
V
SAT
CCFL Switch On Resistance
CCFL I
SW
= 1A
I
Q
Supply Current Increase During
CCFL I
SW
= 1A
I
SW
CCFL Switch On Time
DAC Resolution
DAC Full-Scale Current
V(I
OUT
) = 0.465V
MIN
TYP
0.1
MAX
0.16
UNIT
%/V
G
50
6.5
100
7.0
150
7.5
μ
A
V
G
5
9
μ
A
A
A
G
G
1.25
0.9
1.9
1.6
0.6
20
3.0
2.6
1.0
30
G
mA/A
6
Bits
μ
A
μ
A
nA
LSB
LSB
μ
A
98
96
100
100
102
104
±
200
±
1
2
±
1
G
DAC Zero Scale Current
DAC Differential Nonlinearity
DAC Supply Voltage Rejection
Logic Input Current
High Level Input Voltage
V(I
OUT
) = 0.465V
G
G
±
0.1
0.2
3V
≤
V
CC
≤
6.5V, I
OUT
= Full Scale, V(I
OUT
) = 0.465V
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
G
I
IN
V
IH
G
G
V
CC
– 0.3
G
2.4
G
1.4
V
V
V
V
V
V
V
V
IL
Low Level Input Voltage
G
G
0.8
0.6
0.4
0.4
V
OL
Low Level Output Voltage
G
G
SMBus Timing (Notes 4, 5)
f
SMB
SMB Operating Frequency
t
BUF
Bus Free Time Between Stop and Start Condition
t
HD:STA
Hold Time After (Repeated) Start Condition
t
SU:STA
Repeated Start Condition Setup Time
t
SU:STO
Stop Condition Setup Time
t
HD:DAT
Data Hold Time
t
SU:DAT
Data Setup Time
t
LOW
Clock Low Period
t
HIGH
Clock High Period
t
f
Clock/Data Fall Time
t
r
Clock/Data Rise Time
G
10
4.7
4.0
4.7
4.0
300
250
4.7
4.0
100
kHz
μ
s
μ
s
μ
s
μ
s
ns
ns
μ
s
μ
s
ns
ns
G
G
G
G
G
G
G
G
50
300
1000
G
G
Note 3:
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 4
: Timings for all signals are referenced to V
IH
and V
IL
signals.
Note 5
: These parameters are guaranteed by design and are not tested in
production. Refer to the Timing Diagrams for additional information.
The
G
denotes specifications which apply over the specified operating
temperature range.
Note 1:
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 2:
Does not include switch leakage.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LT1786FCS#PBF | 功能描述:IC SW REG CCFL SMBUS PROG 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LT1786FCS#TR | 功能描述:IC REG SW CCFL SMBUS PROG 16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LT1786FCS#TRPBF | 功能描述:IC SW REG CCFL SMBUS PROG 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LT1787 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, High Side Current Sense Amplifiers |
| LT1787_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, High Side Current Sense Amplifiers |
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