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參數資料
| 型號： | MC33129 |
| 廠商： | Motorola, Inc. |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| 中文描述： | 高性能電流模式控制器 |
| 文件頁數： | 12/16頁 |
| 文件大?。?/td> | 347K |
| 代理商： | MC33129 |
MC34129 MC33129
12
MOTOROLA ANALOG IC DEVICE DATA
Figure 24. Current Sensing Power MOSFET
Figure 25. Current Waveform Spike Suppression
Figure 26. MOSFET Parasitic Oscillations
Figure 27. Bipolar Transistor Drive
VRS
≈
RS
Ipk
rDS(on)
rDM(on) + rS
If: SENSEFET = MTP10N10M
RS = 200
Then: VRS
≈
0.075 Ipk
1.25V
–
8
9
10
11
1
2
3
Vin
D
SENSEFET
G
M
K
S
Power Ground:
To Input Source
Return
1RS
Control Circuitry Ground:
To Pin 7
Virtually lossless current sensing can be achieved with the implementation of a
SENSEFET power switch.
+
The addition of the RC filter will eliminate instability caused by the
leading edge spike on the current waveform.
1
2
3
Vin
Q1
R
C
RS
1
2
3
Vin
Q1
RS
Rg
Series gate resistor Rg will damp any high frequency parasitic
oscillations caused by the MOSFET input capacitance and any
series wiring inductance in the gate–source circuit.
The totem–pole output can furnish negative base current for enhanced
transistor turn–off, with the addition of capacitor C1.
1
2
3
Vin
Q1
RS
C1
IB
+
0
–
Base Charge
Removal
t
相關PDF資料 |
PDF描述 |
|---|---|
| MC34129D | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| MC34129P | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| MC34164P-3 | MICROPOWER UNDERVOLTAGE SENSING CIRCUITS |
| MC34164DM-5 | MICROPOWER UNDERVOLTAGE SENSING CIRCUITS |
| MC33164DM-5 | MICROPOWER UNDERVOLTAGE SENSING CIRCUITS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC33129D | 制造商:Motorola Inc 功能描述: |
| MC33129DR2 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MC33129EFR2 | 功能描述:IC REG CTRLR FLYBK ISO CM 14SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數:1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| MC33129P | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High Performance Current Mode Controllers |
| MC33143 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:DUAL HIGH-SIDE SWITCH |
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