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參數(shù)資料
| 型號： | MAX6330TUR-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | VOLT REGULATOR|FIXED|+3.3V|TO-236|3PIN|PLASTIC |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 223K |
| 代理商： | MAX6330TUR-T |
MAX6330/MAX6331
Precision Shunt Regulators with Reset
in SOT23-3
_______________________________________________________________________________________
5
______________________________________________________________Pin Description
PIN
FUNCTION
1
Ground
2
—
Inverting Reset Output. RESET remains low while VSHUNT is below the reset threshold and
for 140ms after VSHUNT rises above the threshold.
—
2
Noninverting Reset Output. RESET remains high while VSHUNT is below the reset threshold
and for 140ms after VSHUNT rises above the threshold.
3
Regulated Shunt Voltage (+5V, +3.3V, or +3.0V)
NAME
GND
RESET
SHUNT
MAX6331
MAX6330
_______________Detailed Description
Reset Output
A microprocessor’s (P’s) reset input starts the P in a
known state. The MAX6330/MAX6331 P supervisory
circuits assert reset to prevent code-execution errors
during power-up, power-down, or brownout conditions.
RESET is guaranteed to be a logic low for VSHUNT >
1V. Once VSHUNT exceeds the reset threshold, an
internal timer keeps RESET low for the reset timeout
period; after this interval, RESET goes high.
If a brownout condition occurs (VSHUNT dips below the
reset threshold), RESET goes low. When VSHUNT falls
below the reset threshold, the internal timer resets to
zero and RESET goes low. The internal timer starts after
VSHUNT returns above the reset threshold, and RESET
then remains low for the reset timeout period.
The MAX6331 has an active-high RESET output that is
the inverse of the MAX6330’s RESET output.
Shunt Regulator
The shunt regulator consists of a pass device and a
controlling circuit, as illustrated in Figure 1. The pass
device allows the regulator to sink current while regu-
lating the desired output voltage within a ±1.5% toler-
ance. The shunt current range (ISHUNT) is 100A to
50mA.
The pass transistor in the MAX6330/MAX6331 main-
tains a constant output voltage (VSHUNT) by sinking the
necessary amount of shunt current. When ILOAD (see
Typical Operating Circuit) is at a maximum, the shunt
current is at a minimum, and vice versa:
IIN = ISHUNT + ILOAD = (VIN - VSHUNT) / RS
Consider the following information when choosing the
external resistor RS:
1) The input voltage range, (VIN)
2) The regulated voltage, (VSHUNT)
3) The output current range, (ILOAD)
Choose RS as follows:
(VIN(max) - VSHUNT (min)) / (50mA + ILOAD(min))
≤ RS ≤
(VIN(min) - VSHUNT (max)) / (100A + ILOAD(max))
Choose the largest nominal resistor value for RS that
gives the lowest current consumption. Provide a safety
margin to incorporate the worst-case tolerance of the
MAX6330
MAX6331
VIN
RS
VSHUNT
ILOAD
ISHUNT
IIN
CL
SHUNT
RESET
GENERATOR
140ms
TIMEOUT
RESET
(RESET)
1.2V
GND
( ) ARE FOR MAX6331
Figure 1. Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6331LUR-T | VOLT REGULATOR|FIXED|+5V|TO-236|3PIN|PLASTIC |
| MAX6331SUR-T | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| MAX6331TUR-T | VOLT REGULATOR|FIXED|+3.3V|TO-236|3PIN|PLASTIC |
| MAX6330LUR-T | VOLT REGULATOR|FIXED|+5V|TO-236|3PIN|PLASTIC |
| MAX6332UR16D1-T | Voltage Detector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6331LUR | 制造商:Maxim Integrated Products 功能描述:PRECISION SHUNT REGUALTORS WITH POW - Rail/Tube |
| MAX6331LUR+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.63V 3PIN SOT-23 - Rail/Tube |
| MAX6331LUR+T | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Precision Shunt Regulator w/Reset RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6331LUR-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6331SUR | 制造商:Maxim Integrated Products 功能描述:PRECISION SHUNT REGUALTORS WITH POW - Rail/Tube |
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