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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 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 164K |
| 代理商： | CS51221EDR16 |
TypicPackage Pin Description
6
PACKAGE PIN #
PIN SYMBOL
FUNCTION
Block Diagram
C
3.1V
V
REF
DISABLE
FF Discharge
50
μ
A
VREF = 3.3V
OSC
S
R
Q
Blank
13.5V
SS
PGnd
V
C
GATE
I
SENSE
COMP
V
FB
I
SET
V
REF
V
CC
SYNC
R
T
C
T
OV
ENABLE
V
(1.263V)
FF
Latching
1V
UV Monitor
2V
UVL
2mA(maximum load current)
Low
Sat
Gate
Thermal
+
-
EAMP
I
LIM
G
3
G4
OV Monitor
MDet
(Sat Sense)
3.0V
UV
PWM
V
REF
OK
UV Lockout
G1
3.3V
V
O
Off
5
μ
A
SS to 1.8V Max
(Sat Sense)
Max Duty Cycle
3.0V
LGnd
2V to 1V Trip Points
Q
Soft Start Clamp
ON
G2
16L PDIP & 16L SO Narrow
1
GATE
External power switch driver with 1.0A peak capability. Rail to
rail output occurs when the capacitive load is between 470pF
and 10nF.
Current sense comparator input.
Bidirectional synchronization. Locks to highest frequency.
PWM ramp.
Undervoltage protection monitor.
Overvoltage protection monitor.
Timing resistor R
T
and capacitor C
T
determine oscillator
frequency and maximum duty cycle, D
MAX
.
Voltage at this pin sets pulse-by-pulse overcurrent threshold.
Feedback voltage input. Connected to the error amplifier
inverting input.
Error amplifier output.
Charging external capacitor restricts error amplifier output
voltage during the power up or fault conditions.
Logic Ground.
3.3V reference voltage output. Decoupling capacitor can be
selected from 0.01μF to 10μF.
Logic supply voltage.
Output power stage ground.
Output power stage supply voltage.
2
3
4
5
6
7
I
SENSE
SYNC
FF
UV
OV
R
T
/C
T
8
9
I
SET
V
FB
10
11
COMP
SS
12
13
LGnd
V
REF
14
15
16
V
CC
PGnd
V
C
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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:CHERRY 功能描述:Enhanced Voltage Mode PWM Controller |
| CS51227/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Enhanced Voltage Mode PWM Controller |
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