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參數資料
| 型號： | KA7552A |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SMPS Controller |
| 中文描述： | 1.5 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 176K |
| 代理商： | KA7552A |
2004 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.2
Features
Built-in drive circuits for direct connection power
MOSFET (l
O
=
±
1.5A)
Wide operating frequency range (5kHz ~ 600kHz)
Pulse by pulse over current limiting
Over load protection
On/off control by external trigger
Internal UVLO
Low standby current (typ. 90uA)
Soft start circuit
Description
The KA7552A/KA7553A are switching power control IC
for wide operating frequency range. The internal circuits
include pulse by pulse current limiting, protection, on/off
control by external trigger, low standby current, soft start,
and high current totempole output for driving a POWER
MOSFET. Maximum duty of the KA7552A is 70% and the
KA7553A is 46%. When duty is maximum, the input
threshold voltage of pin2 & pin8 are not same in KA7552A
and KA7553A.
8-DIP
1
Internal Block Diagram
8
7
1
6
5
4
3
2
CS
C
T
R
T
V
CC
OUTPUT
GND
IS(+)
FB
0.56 ~ 0.42V
10uA
7V
PWM
2.4V
1.9V
O.C.P
0.24V
4.3K
OFF
3.6V
2.8V
OSC
UVLO
R
S
Q
BIAS
(4V)
+
_
+
-
-
-
_
+
+
-
+
-
KA7552A/KA7553A
SMPS Controller
相關PDF資料 |
PDF描述 |
|---|---|
| KA7553A | SMPS Controller |
| KA7577 | SMPS Controller |
| KA7577D | SMPS Controller |
| KA7630 | Fixed Multi-Output Regulator |
| KA7631 | Fixed Multi-Output Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| KA7552A_NL | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| KA7553 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:PWN CONTROLLER |
| KA7553A | 功能描述:開關變換器、穩壓器與控制器 SMPS Controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| KA7577 | 功能描述:線性穩壓器 - 標準 SMPS Controller RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節: 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| KA7577D | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:SMPS Controller |
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