參數(shù)資料
型號(hào)： LM3524D
廠商： National Semiconductor Corporation
英文描述： Regulating Pulse Width Modulator
中文描述： 調(diào)節(jié)脈沖寬度調(diào)制器
文件頁數(shù)： 5/22頁
文件大?。?/td> 1172K
代理商： LM3524D
Electrical Characteristics
(Continued)
(Note 1)
LM2524D
Tested
Limit
(Note 3)
LM3524D
Tested
Limit
(Note 3)
Symbol
Parameter
Conditions
Design
Limit
(Note 4)
Design
Limit
(Note 4)
Units
Typ
Typ
TC-V
sense
Sense Voltage T.C.
Common Mode
Voltage Range
0.2
0.7
1
0.2
0.7
1
mV/C
V
Min
V
Max
V
5
V
4
= 300 mV
SHUT DOWN SECTION
V
SD
High Input
Voltage
High Input
Current
V
(Pin 2)
V
(Pin 1)
≥
150 mV
I
(pin 10)
1
0.5
1.5
1
0.5
1.5
V
Min
V
Max
mA
I
SD
1
1
OUTPUT SECTION (EACH OUTPUT)
V
CES
Collector Emitter
Voltage Breakdown
I
CES
Collector Leakage
Current
I
C
≤
100 μA
55
40
V
Min
V
CE
= 60V
V
CE
= 55V
V
CE
= 40V
I
E
= 20 mA
I
E
= 200 mA
I
E
= 50 mA
0.1
50
μA
Max
0.1
0.2
1.5
18
50
0.7
2.5
17
V
CESAT
Saturation
Voltage
Emitter Output
Voltage
Rise Time
0.2
1.5
18
0.5
2.2
17
V
Max
V
EO
V
Min
t
R
V
IN
= 20V,
I
E
= 250 μA
R
C
= 2k
R
C
= 2k
200
200
ns
t
F
SUPPLY CHARACTERISTICS SECTION
V
IN
Input Voltage
Range
T
Thermal Shutdown
Temp.
I
IN
Stand By Current
Fall Time
100
100
ns
After Turn-on
8
40
8
40
V
Min
V
Max
C
(Note 2)
160
160
V
IN
= 40V (Note 6)
5
10
5
10
mA
Note 1:
Unless otherwise stated, these specifications apply for T
A
= T
J
= 25C. Boldface numbers apply over the rated temperature range: LM2524D is 40 to 85C
and LM3524D is 0C to 70C. V
IN
= 20V and f
OSC
= 20 kHz.
Note 2:
For operation at elevated temperatures, devices in the N package must be derated based on a thermal resistance of 86C/W, junction to ambient. Devices
in the M package must be derated at 125C/W, junction to ambient.
Note 3:
Tested limits are guaranteed and 100% tested in production.
Note 4:
Design limits are guaranteed (but not 100% production tested) over the indicated temperature and supply voltage range. These limits are not used to
calculate outgoing quality level.
Note 5:
Absolute maximum ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions.
Note 6:
Pins 1, 4, 7, 8, 11, and 14 are grounded; Pin 2 = 2V. All other inputs and outputs open.
Note 7:
The value of a C
capacitor can vary with frequency. Careful selection of this capacitor must be made for high frequency operation. Polystyrene was used
in this test. NPO ceramic or polypropylene can also be used.
Note 8:
OSC amplitude is measured open circuit. Available current is limited to 1 mA so care must be exercised to limit capacitive loading of fast pulses.
L
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3524DM 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM3524DM/NOPB 功能描述:電壓模式 PWM 控制器 REGULATING PULSE WIDTH MODULATOR RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM3524DM/NOPB 制造商:Texas Instruments 功能描述:Pulse Width Modulation (PWM) Controller
LM3524DMX 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM3524DMX/NOPB 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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