參數(shù)資料
型號： LT1508C
廠商： Linear Technology Corporation
元件分類： 基準電壓源/電流源
英文描述： Power Factor and PWM Controller(Voltage Mode)
中文描述： 功率因數(shù)和PWM控制器（電壓模式）
文件頁數(shù)： 3/16頁
文件大小： 337K
代理商： LT1508C
3
LT1508
ELECTRICAL C
Maximum operating voltage (V
MAX
) = 25V, V
CC
= 18V, R
SET
= 15k to GND, C
SET
= 1nF to GND, I
AC
= 100
μ
A, I
SENSE
= 0V, CA
OUT
= 3.5V,
VA
OUT
= 5V, OVP = V
REF
. No load on any outputs unless otherwise noted.
HARA TERISTICS
PARAMETER
Current Amplifier (PFC Section)
Current Amp Offset Voltage
I
SENSE
Bias Current
Current Amp Voltage Gain
Current Amp Unity-Gain Bandwidth
Current Amp Output High
Current Amp Output Low
Current Amp Short-Circuit Current
Input Range, I
SENSE
, M
OUT
(Linear Operation)
Reference
Reference Output Voltage
V
REF
Load Regulation
V
REF
Line Regulation
V
REF
Short-Circuit Current
V
REF
Worst Case
Current Limit
PK
LIM
Offset Voltage
PK
LIM
Input Current
PK
LIM
to GTDR Propagation Delay
Multiplier
Multiplier Output Current
Multiplier Output Current Offset
Multiplier Maximum Output Current
Multiplier Gain Constant (Note 1)
I
AC
Input Resistance
Oscillator
Oscillator Frequency
CONDITIONS
MIN
TYP
MAX
UNITS
G
±
1
–25
110
3
8.5
1.1
8
±
4
–250
mV
nA
dB
MHz
G
80
G
7.2
V
V
G
2
CA
OUT
= 0V
G
3
17
1
mA
G
–0.3
V
I
REF
= 0mA, T
A
= 25
°
C
–5mA < I
REF
< 0mA
11.5V < V
CC
< V
MAX
V
REF
= 0V
Load, Line, Temperature
7.39
7.50
5
5
28
7.5
7.60
V
mV
mV
mA
G
–20
12
7.32
20
50
7.68
G
G
V
G
–25
25
mV
μ
A
ns
PK
LIM
= –0.1V
PK
LIM
Falling from 50mV to –50mV
G
–50
400
–100
I
AC
= 100
μ
A, R
SET
= 15k
R
AC
= 1M from I
AC
to GND
I
AC
= 450
μ
A, R
SET
= 15k, VA
OUT
= 7V, M
OUT
= 0V
35
μ
A
μ
A
μ
A
V
–2
k
G
–0.05
–260
0.035
25
–0.5
–235
G
–286
I
AC
from 50
μ
A to 1mA
15
35
R
SET
= 15k, C
SET
= 1000pF
R
SET
= 15k, C
SET
= 1500pF
G
G
85
58
4.35
1.15
100
68
4.7
1.3
115
78
5.0
1.55
kHz
kHz
C
SET
Ramp Peak-to-Peak Amplitude
C
SET
Ramp Valley Voltage
Overvoltage Comparator (PFC Section)
Comparator Trip Voltage Ratio (V
TRIP
/V
REF
)
Hysteresis
OVP Bias Current
OVP Propagation Delay
Gate Drivers (GTDR1 and GTDR2)
Max Output Voltage
Output High
Output Low (Device Unpowered)
Output Low (Device Active)
V
V
G
1.04
1.05
0.35
0.2
100
1.06
V
OVP = 7.5V
G
1
μ
A
ns
0mA Load, 18V < V
CC
–200mA Load, 11.5V
≤
V
CC
≤
15V
V
CC
= 0V, 50mA Load (Sinking)
200mA Load (Sinking)
10mA Load
10nF from GTDR to GND
1nF from GTDR to GND
G
12
15
17.5
V
V
V
V
V
A
G
V
CC
– 3.0
G
0.9
0.5
0.2
2
25
96
1.5
1
0.4
G
G
Peak Output Current
Rise and Fall Time
Max Duty Cycle (PFC)
Max Duty Cycle (PWM) (Note 2)
ns
%
%
90
44
50
相關(guān)PDF資料
PDF描述
LT1508CN Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs 24-PDIP 0 to 70
LT1508CSW Octal D-Type Transparent Latches With 3-State Outputs 20-SOIC 0 to 70
LT1508I Power Factor and PWM Controller(Voltage Mode)
LT1508IN Power Factor and PWM Controller(Voltage Mode)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1508CN 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Factor and PWM Controller(Voltage Mode)
LT1508CSW 功能描述:IC PWM/POWER FACTOR CNTRLR20SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - PFC（功率因數(shù)修正） 系列:- 產(chǎn)品培訓模塊:GreenChip Synchronous Rectification Control Family of ICs 標準包裝:1 系列:- 模式:間歇導電（DCM） 頻率 - 開關(guān):- 電流 - 啟動:- 電源電壓:8.6 V ~ 38 V 工作溫度:-20°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設(shè)備封裝:14-SO 包裝:Digi-Reel® 其它名稱:568-5348-6
LT1508I 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Factor and PWM Controller(Voltage Mode)
LT1508IN 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Factor and PWM Controller(Voltage Mode)
LT1508ISW 功能描述:IC PWM/POWER FACTOR CNTRLR20SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - PFC（功率因數(shù)修正） 系列:- 產(chǎn)品培訓模塊:GreenChip Synchronous Rectification Control Family of ICs 標準包裝:1 系列:- 模式:間歇導電（DCM） 頻率 - 開關(guān):- 電流 - 啟動:- 電源電壓:8.6 V ~ 38 V 工作溫度:-20°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設(shè)備封裝:14-SO 包裝:Digi-Reel® 其它名稱:568-5348-6
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