- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄374166 > CS51221EDR16 (ZF Electronics Corporation) Enhanced Voltage Mode PWM Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | CS51221EDR16 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | Enhanced Voltage Mode PWM Controller |
| 中文描述： | 增強(qiáng)的電壓模式PWM控制器 |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大小： | 164K |
| 代理商： | CS51221EDR16 |
Application Information: continued
C
Figure 10. The design of feedback voltage divider has to consider the
error amplifier input current.
Design voltage dividers for OV and UV detection
In Fig.11, the voltage divider uses three resistors in series
to set OV and UV threshold seen from the input voltage.
The values of the resistors can be calculated from the fol-
lowing three equations, where the third equation is
derived from OV hysteresis requirement.
V
IN(LOW)
×
= 1V
(A)
V
IN(HIGH)
×
= 2V
(B)
12.5μA
× (
R1 + R2) = V
HYST
(C)
where
V
LINE(LOW)
, V
LINE(HIGH)
= input voltage OV and UV threshold
V
HYST
= OV hysteresis seen at V
IN
It is self-evident from equation A and B that to use this
design, V
IN(HIGH)
has to be two times greater than
V
IN(LOW)
. Otherwise, two voltage dividers have to be used
to program OV and UV separately.
Figure 11. OV /UV Monitor Divider.
V
IN
V
UV
V
OV
R
3
R
2
R
1
)
R3
R2 + R3 + R1
(
)
R2 + R3
R2 + R3 + R1
(
+
-
COMP
Ier
1.27
FB
R2
R1
V
OUT
-+
Ri
11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CS5124 | High Performance, Integrated Current Mode PWM Controllers |
| CS5126XD8 | High Performance, Integrated Current Mode PWM Controllers |
| CS5126 | High Performance, Integrated Current Mode PWM Controllers |
| CS5124XDR8 | High Performance, Integrated Current Mode PWM Controllers |
| CS5126XDR8 | High Performance, Integrated Current Mode PWM Controllers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS51221EDR16G | 功能描述:電壓模式 PWM 控制器 Enhanced Current Mode PWM Controller 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(kāi)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 |
| CS51221EDTB16G | 功能描述:電壓模式 PWM 控制器 ANA PWM CTR TSSOP 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(kāi)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 |
| CS51221EDTB16R2G | 功能描述:電壓模式 PWM 控制器 ANA PWM CTR TSSOP 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(kāi)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 |
| CS51221EN16 | 制造商:CHERRY 制造商全稱(chēng):CHERRY 功能描述:Enhanced Voltage Mode PWM Controller |
| CS51227/D | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Enhanced Voltage Mode PWM Controller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。