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參數(shù)資料
| 型號： | MAX5069AAUE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | GT 10C 10#16 PIN PLUG |
| 中文描述： | 1 A SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, MO-153-ABT, TSSOP-16 |
| 文件頁數(shù)： | 16/19頁 |
| 文件大?。?/td> | 236K |
| 代理商： | MAX5069AAUE |
M
Current Limit
The current-sense resistor (R
CS
), connected between
the source of the MOSFET and ground, sets the current
limit. The CS input has a voltage trip level (V
CS
) of
314mV. Use the following equation to calculate the
value of R
CS
:
where I
PRI
is the peak current in the primary that flows
through the MOSFET at full load.
When the voltage produced by this current (through the
current-sense resistor) exceeds the current-limit com-
parator threshold, the MOSFET drivers (NDRVA/
NDRVB) quickly terminate the current on-cycle. In most
cases, a small RC filter is required to filter out the lead-
ing-edge spike on the sense waveform. Set the corner
frequency to a few MHz above the switching frequency.
Applic ations Information
Layout Rec ommendations
Keep all PC board traces carrying switching currents
as short as possible, and minimize current loops.
For universal AC input design, follow all applicable safe-
ty regulations. Offline power supplies may require UL,
VDE, and other similar agency approvals. Contact these
agencies for the latest layout and component rules.
Typically, there are two sources of noise emission in a
switching power supply: high di/dt loops and high dV/dt
surfaces. For example, traces that carry the drain cur-
rent often form high di/dt loops. Similarly, the heatsink of
the MOSFET presents a dV/dt source, thus minimize the
surface area of the heatsink as much as possible.
To achieve best performance and to avoid ground
loops, use a solid ground-plane connection.
R
V
I
PRI
CS
CS
=
High-Frequenc y, Current-Mode PWM Controller
with Ac c urate Osc illator and Dual FET Drivers
16
______________________________________________________________________________________
S elec tor Guide
PART
BOOTSTRAP
UVLO
STARTUP
VOLTAGE (V)
PROGRAMMABLE
UVLO
HYSTERESIS
OSCILLATOR SYNC
MAX5069A
MAX5069B
MAX5069C
MAX5069D
Yes
Yes
No
No
23.6
23.6
10.8
10.8
No
Yes
Yes
No
Yes
No
No
Yes
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5069BAUE | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
| MAX5069 | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
| MAX5069B | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
| MAX5069C | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
| MAX5069D | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5069AAUE+ | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069AAUE+T | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069AAUE-T | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069AEVKIT | 功能描述:電源管理IC開發(fā)工具 MAX5069A Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5069B | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
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