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| 型号： | MAX6330LUR+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT PREC 5V SOT-23-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 基准类型： | 旁路，精度 |
| 输出电压： | 5V |
| 容差： | ±1.5% |
| 输入电压： | 3 V ~ 200 V |
| 通道数： | 1 |
| 电流 - 阴极： | 100µA |
| 电流 - 输出： | 50mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 标准包装 |
| 其它名称： | MAX6330LUR+TDKR |
Precision Shunt Regulators with Reset
in SOT23-3
______________________________________________________________Pin Description
PIN
MAX6330 MAX6331
NAME
FUNCTION
1
2
—
3
1
—
2
3
GND
RESET
RESET
SHUNT
Ground
Inverting Reset Output. RESET remains low while V SHUNT is below the reset threshold and
for 140ms after V SHUNT rises above the threshold.
Noninverting Reset Output. RESET remains high while V SHUNT is below the reset threshold
and for 140ms after V SHUNT rises above the threshold.
Regulated Shunt Voltage (+5V, +3.3V, or +3.0V)
_______________Detailed Description
Reset Output
A microprocessor’s (μP’s) reset input starts the μP in a
known state. The MAX6330/MAX6331 μP 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 V SHUNT >
1V. Once V SHUNT 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 (V SHUNT dips below the
reset threshold), RESET goes low. When V SHUNT falls
below the reset threshold, the internal timer resets to
Consider the following information when choosing the
external resistor R S :
1) The input voltage range, (V IN)
2) The regulated voltage, (V SHUNT )
3) The output current range, (I LOAD)
Choose R S as follows:
(V IN(max) - V SHUNT (min) ) / (50mA + I LOAD(min) ) ≤ R S ≤
(V IN(min) - V SHUNT (max) ) / (100μA + I LOAD(max) )
Choose the largest nominal resistor value for R S that
gives the lowest current consumption. Provide a safety
margin to incorporate the worst-case tolerance of the
zero and RESET goes low. The internal timer starts after
V SHUNT returns above the reset threshold, and RESET
then remains low for the reset timeout period.
V IN
I IN
R S
V SHUNT
I LOAD
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
I SHUNT
SHUNT
C L
RESET
device allows the regulator to sink current while regu-
lating the desired output voltage within a ±1.5% toler-
ance. The shunt current range (I SHUNT ) is 100μA to
50mA.
The pass transistor in the MAX6330/MAX6331 main-
tains a constant output voltage (V SHUNT ) by sinking the
GENERATOR
140ms
TIMEOUT
RESET
(RESET)
necessary amount of shunt current. When I LOAD (see
Typical Operating Circuit ) is at a maximum, the shunt
current is at a minimum, and vice versa:
I IN = I SHUNT + I LOAD = (V IN - V SHUNT ) / R S
GND
( ) ARE FOR MAX6331
Figure 1. Functional Diagram
1.2V
MAX6330
MAX6331
_______________________________________________________________________________________
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6330SUR | 制造商:Maxim Integrated Products 功能描述:PRECISION SHUNT REGULATORS WITH POW - Cut Tape Product |
| MAX6330SUR+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.78V 3PIN SOT-23 - Rail/Tube |
| MAX6330SUR+T | 功能描述:基准电压& 基准电流 Precision Shunt Regulator w/Reset RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| MAX6330SUR-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6330TUR | 制造商:Maxim Integrated Products 功能描述:PRECISION SHUNT REGULATORS WITH POW - Rail/Tube |
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