參數(shù)資料
型號: LT1508IS
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1.5 A POWER FACTOR CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO20
封裝: PLASTIC, SO-20
文件頁數(shù): 11/16頁
文件大小: 232K
代理商: LT1508IS
4
LT1508
IM
IAC (VAOUT – 2)
2
The q 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 PERFORMANCE CHARACTERISTICS
U
W
PFC Voltage Amplifier Open-Loop
Gain and Phase
FREQUENCY (Hz)
10
GAIN
(dB)
100
80
60
40
20
0
–20
100
1k
10k
100k
1508 G01
1M
10M
0
–20
–40
–60
–80
–100
–120
PHASE
(DEG)
PHASE
GAIN
FREQUENCY (Hz)
10
GAIN
(dB)
100
80
60
40
20
0
–20
100
1k
10k
100k
1508 G02
1M
10M
0
–20
–40
–60
–80
–100
–120
PHASE
(DEG)
PHASE
GAIN
PFC Current Amplifier Open-Loop
Gain and Phase
TIME
1508 G03
PFC (GTDR1)
53%
PWM (GTDR2)
PFC/PWM Synchronization
ELECTRICAL C
C
HARA TERISTICS
VCC = 18V, RSET = 15k to GND, CSET = 1nF to GND, IAC = 100A, ISENSE = 0V, CAOUT = 3.5V, VAOUT = 5V, OVP = VREF. No load on any
outputs, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Soft Start Current
SS1 Current (PFC)
SS1 = 2.5V
q
512
30
A
SS2 Current (PWM)
SS2 = 1V
q
512
30
A
Comparators in PWM Section
ILIM Input Current
ILIM = 0V, VC = 1.6V
q
–0.3
–2
A
Current Limit Comparator (CL) Threshold
VC > 2.6V
q
0.95
1.1
1.20
V
GTDR2 Switching Off Threshold at VC or at SS2
ILIM = 0V
q
1V
VC Input Current
VC = 0V
q
–20
– 80
A
PWMOK Comparator Low Threshold (in Terms of VREF)
q
0.57
0.63
0.70
VC Pin High Voltage
1mA into VC Pin
q
6.2
6.9
7.5
V
GTDR2 Turn-On Blanking Time
180
ns
相關(guān)PDF資料
PDF描述
LT1620CMS8#TR SPECIALTY ANALOG CIRCUIT, PDSO8
LT1621IGN#TR SPECIALTY ANALOG CIRCUIT, PDSO16
LT1620CS8#TR SPECIALTY ANALOG CIRCUIT, PDSO8
LT1620IGN#TR SPECIALTY ANALOG CIRCUIT, PDSO16
LT1740-7DZB1 1-OUTPUT AC-DC REG PWR SUPPLY MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(dòng):- 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(dòng):- 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
LT1509CN#PBF 功能描述:IC PFC CTRLR AVERAGE CURR 20DIP RoHS:是 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(dòng):- 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