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參數(shù)資料
| 型號(hào)： | KA3511BS |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Intelligent Voltage Mode PWM IC |
| 中文描述： | 0.2 A SWITCHING CONTROLLER, 10 kHz SWITCHING FREQ-MAX, PDIP24 |
| 封裝： | SDIP-24 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 168K |
| 代理商： | KA3511BS |
KA3511BS
4
Pin Number
1
Pin Name
V
CC
Pin Function Descrition
Supply voltage. Operating range is 14V~30V. V
CC
=20V, Ta=25
°
C at test.
2
COMP
Error amplifier output. It is connect to non-inverting input of pulse width modulator
comparator.
3
E/A(-)
Error amplifier inverting input. Its reference voltage is always 1.25V.
4
E/A(+)
Error amplifier non-inverting input feedback voltage.This pin may be used to sense
power supply output voltage.
5
TREM
Remote on/off delay. Ton/Toff=8ms/24ms (Typ.) with C=0.1uF. Its high/low threshold
voltage is 1.8V/0.6V.
6
REM
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.
7
RT
Oscillation frequency setting R. (Test Condition R
T
=10k
)
8
CT
Oscillation frequency setting C. (Test Condition C
T
=0.01uF)
9
DET
Under-voltage detect pin. Its threshold voltage is 1.25V Typ.
10
T
PG
PG delay. Td=250ms (Typ) with C
PG
=2.2uF. The high/low threshold voltage are 1.8V/
0.6V and the voltage of Pin10 is clamped at 2.9V for noise margin.
11
PG
Power good output signal. PG =
“
High
”
means that the power is
“
Good
”
for operation
and PG =
“
Low
”
means
“
Power fail
”
.
14
Vref
Precision voltage reference trimmed to 2%. (Typical Value = 5.03V)
15
V3.3
Over voltage protection for output 3.3V. (Typical Value = 4.1V)
16
V5
Over voltage protection for output 5V. (Typical Value = 6.2V)
17
V12
Over voltage protection for output 12V. (Typical Value = 14.2V)
18
PT
This is prepared for an extra OVP input or another protection signal.
(Typical Value = 1.25V)
19
T
UVP
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=2.2uF).
20
GND
Signal ground.
21
DTC
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.
22
C2
Output drive pin for push-pull operation.
23
E
Power ground.
24
C1
Output drive pin for push-pull operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| KA3525AD | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:SMPS CONTROLLER |
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