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參數(shù)資料
| 型號： | LT1508I |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準(zhǔn)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)： | 4/16頁 |
| 文件大?。?/td> | 337K |
| 代理商： | LT1508I |
4
LT1508
I
M
I
AC
(VA
OUT
– 2)
2
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
Multiplier Gain Constant: K =
Note 2:
GTDR2 (PWM) pulse is delayed by 53% duty cycle after GTDR1
(PFC) is set. See PFC/PWM Synchronization graph in the Typical
Performance Characteristics section.
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
PFC Voltage Amplifier Open-Loop
Gain and Phase
FREQUENCY (Hz)
10
G
100
80
60
40
20
0
–20
100
1k
10k
100k
1508 G01
1M
10M
0
–20
–40
–60
–80
–100
–120
P
PHASE
GAIN
FREQUENCY (Hz)
10
G
100
80
60
40
20
0
–20
100
1k
10k
100k
1508 G02
1M
10M
0
–20
–40
–60
–80
–100
–120
P
PHASE
GAIN
PFC Current Amplifier Open-Loop
Gain and Phase
TIME
1508 G03
PFC (GTDR1)
53%
PWM (GTDR2)
PFC/PWM Synchronization
ELECTRICAL C
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
Soft Start Current
SS1 Current (PFC)
SS2 Current (PWM)
Comparators in PWM Section
I
LIM
Input Current
Current Limit Comparator (CL) Threshold
GTDR2 Switching Off Threshold at V
C
or at SS2
V
C
Input Current
PWMOK Comparator Low Threshold (in Terms of V
REF
)
V
C
Pin High Voltage
GTDR2 Turn-On Blanking Time
CONDITIONS
MIN
TYP
MAX
UNITS
SS1 = 2.5V
SS2 = 1V
G
5
5
12
12
30
30
μ
A
μ
A
G
I
LIM
= 0V, V
C
= 1.6V
V
C
> 2.6V
I
LIM
= 0V
V
C
= 0V
G
–0.3
1.1
–2
1.20
μ
A
V
V
μ
A
G
0.95
1
–20
0.57
6.2
G
G
–80
0.70
7.5
G
0.63
6.9
180
1mA into V
C
Pin
G
V
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(xùn)模塊:GreenChip Synchronous Rectification Control Family of ICs 標(biāo)準(zhǔn)包裝:1 系列:- 模式:間歇導(dǎo)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(yīng)商設(shè)備封裝:14-SO 包裝:Digi-Reel® 其它名稱:568-5348-6 |
| LT1509 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Factor and PWM Controller |
| LT15090 | 制造商:Cooper Crouse-Hinds 功能描述: 制造商:CROUSE-HINDS/COOPER 功能描述: |
| LT1509CN | 功能描述:IC PFC CTRLR AVERAGE CURR 20DIP 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(xùn)模塊:GreenChip Synchronous Rectification Control Family of ICs 標(biāo)準(zhǔn)包裝:1 系列:- 模式:間歇導(dǎo)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(yīng)商設(shè)備封裝:14-SO 包裝:Digi-Reel® 其它名稱:568-5348-6 |
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