參數(shù)資料
型號(hào): LT1509CN
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Power Factor and PWM Controller
中文描述: 1.5 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDIP20
封裝: 0.300 INCH, PLASTIC, DIP-20
文件頁(yè)數(shù): 1/16頁(yè)
文件大小: 348K
代理商: LT1509CN
1
LT1509
Power Factor and
PWM Controller
+
+
+
+
+
+
+
+
I
M
=
I
A2
I
B
200
μ
A
2
11
16
13
+
+
4
15
19
18
V
C
1500 BD01
V
SENSE
14
7.5V
7.9V
V
CC
16V TO 10V
14
μ
A
14
μ
A
7
μ
A
7V to
4.7V
EA
CA
CL
2.2V
M1
I
A
I
M
I
B
25k
1V
1.2V
VA
OUT
10
V
REF
12
7.5V
V
REF
M
OUT
8
I
SENSE
7
CA
OUT
6
C
SET
R
SET
RAMP
50
μ
A
0.7V
RUN
RUN
R
R
S
Q
OSC
55%
DELAY
200ns
BLANKING
PK
LIM
5
GND1
3
V
CC
17
GTDR1
1
16V
16V
GND2
2
GTDR2
20
I
AC
9
OVP
SS1
SS2
PWM0K
+
+
+
R
S
Q
R
NOTE: PWM PULSE IS DELAYED BY 55% DUTY CYCLE AFTER PFC PULSE
BLOCK DIAGRA
M
W
I
PFC and PWM Single Chip Solution
I
Synchronized Operation up to 300kHz
I
99% Power Factor over 20:1 Load Current Range
I
Current Mode PWM
I
Instantaneous Overvoltage Protection
I
Dedicated Overvoltage Protection (OVP Pin)
I
Minimal Line Current Dead Zone
I
Typical 250
μ
A Start-Up Supply Current
I
Line Switching Noise Filter
I
Low Quiescent Current: 13mA
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Fast 2A Peak Current Gate Drivers
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Separate Soft Start Controls
APPLICATIO
S
U
The LT
1509 is a complete solution for universal off-line
switching power supplies utilizing active power factor
correction. The PFC section is identical to the LT1248 PFC
controller except the EN/SYNC pin is removed because
PFC and PWM are synchronized internally.
The current mode PWM section (the LT1508 is the volt-
age-mode counterpart) contains all the primary side func-
tions to convert the PFC preregulated high voltage output
to an isolated low voltage output. The PWM duty cycle is
internally limited to 47% (maximum 50%) to prevent
transformer saturation. PWM soft start begins when PFC
output reaches the preset voltage. In the event of brief line
loss, the PWM will be shut off when the PFC output voltage
drops below 73% of the preset value.
FEATURES
DESCRIPTIO
N
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Universal Power Factor Corrected Power Supplies
and Preregulators
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
LT1509CSW 功能描述:IC PFC CTRLR AVERAGE CURR 20SOIC 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
LT1509CSW#PBF 功能描述:IC PFC CTRLR AVERAGE CURR 20SOIC 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
LT1509CSW#TR 功能描述:IC PFC CTRLR AVERAGE CURR 20SOIC 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
LT1509CSW#TRPBF 功能描述:IC PFC CTRLR AVERAGE CURR 20SOIC 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