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參數(shù)資料
| 型號： | KA3511 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PC POWER SUPPLY DESIGN WITH KA3511 |
| 中文描述： | 0.2 A SWITCHING CONTROLLER, 10 kHz SWITCHING FREQ-MAX, PDIP22 |
| 封裝： | 0.400 INCH, DIP-22 |
| 文件頁數(shù)： | 4/28頁 |
| 文件大?。?/td> | 233K |
| 代理商： | KA3511 |
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4
Rev C, November 1999
Pin
No.
1
2
Name
V
CC
COMP
Function
Supply voltage. Operating range is 14V~30V. V
CC
=20V, Ta=25
°
C at test.
Error amplifier output. It is connected to non-inverting input of pulse width
modulator comparator.
Error amplifier inverting input. Its reference voltage is always 1.25V.
Error amplifier non-inverting input feedback voltage.This pin may be used to
sense power supply output voltage.
Remote on/off delay. Ton/Toff=8ms/24ms (Typ.) with C=0.1μF. Its high/low
threshold voltage is 1.8V/0.6V.
Remote on/off input. It is TTL operation and its threshold voltage is 1.4V. Voltage
at this pin can reach normal 4.6V, with absolutely maximum voltage, 5.25V. If
REM = “Low”, PWM = “Low”. That means the main SMPS is operational. When
REM = “High”, then PWM = “High” and the main SMPS is turned-off.
Oscillation frequency setting R. (Test Condition R
T
=10k
)
Oscillation frequency setting C. (Test Condition C
T
=0.01μF)
Under-voltage detect pin. Its threshold voltage is 1.25V Typ.
PG delay. Td=250ms (Typ) with C
PG
=2.2μF. The high/low threshold voltage are
1.8V/0.6V and the voltage of Pin10 is clamped at 2.9V for noise margin.
Power good output signal. PG = “High” means that the power is “Good” for
operation and PG = “Low” means “Power fail”.
Precision voltage reference trimmed to 2%. (Typical Value = 5.03V)
Over voltage protection for output 3.3V. (Typical Value = 4.1V)
Over voltage protection for output 5V. (Typical Value = 6.2V)
Over voltage protection for output 12V. (Typical Value = 14.2V)
This is prepared for an extra OVP input or another protection signal. (Typical
Value = 1.25V)
Timing pin for under voltage protection blank-out time. Its threshold voltage is
1.8V and clamped at 2.9V after full charging. Target of delay time is 250ms and
it is realized through external (C=2.2μF).
Signal ground.
Deadtime control input. The dead-time control comparator has an effective
120mV input offset which limits the minimum output dead time. Dead time may
be imposed on the output by setting the dead time control input to a fixed
voltage, ranging between 0V to 3.3V.
Output drive pin for push-pull operation.
Power ground.
Output drive pin for push-pull operation.
3
4
E/A(-)
E/A(+)
5
TREM
6
REM
7
8
9
10
RT
CT
DET
T
PG
11
PG
12
13
14
15
16
Vref
V3.3
V5
V12
PT
17
T
UVP
18
19
GND
DTC
20
21
22
C2
E
C1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KA3524 | SMPS Controller |
| KA3525A | SMPS CONTROLLER |
| KA3525AD | SMPS CONTROLLER |
| KA3842AE | SMPS Controller |
| KA3842 | Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KA3511BS | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Intelligent Voltage Mode PWM IC |
| KA3511DS | 功能描述:電壓模式 PWM 控制器 PWM/ Secondary Combo IC 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 |
| KA3524 | 功能描述:DC/DC 開關(guān)控制器 SMPS Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| KA3525A | 功能描述:DC/DC 開關(guān)控制器 SMPS Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| KA3525A | 制造商:Fairchild Semiconductor Corporation 功能描述:CONTROLLER IC 制造商:Fairchild Semiconductor Corporation 功能描述:IC, SMPS CONTROLLER, 16-DIP |
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