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參數(shù)資料
| 型號： | MAX6461UR46-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Microprocessor CORE Voltage Regulator 2 Phase Buck PWM Controller; Temperature Range: 0°C to 70°C; Package: 16-SOIC T&R |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 153K |
| 代理商： | MAX6461UR46-T |
M
Applications Information
Interfacing to Different Logic Voltage
Components
The MAX6463 and MAX6466
’
s active-low, open-drain out-
put versions can be used to interface with a different logic
voltage than V
CC
, as shown in Figure 1. This output struc-
ture sinks current when
OUT
is asserted. Connect a
pullup resistor from
OUT
to any supply from 0 to 6V.
Select a resistor value large enough to allow a valid logic
low (see the
Electrical Characteristics
) and small enough
to register a logic high while supplying all input current
and leakage paths connected to the
OUT
pin.
Hysteresis
The MAX6461
–
MAX6466 feature internal hysteresis that
creates two trip points: one for rising supply voltage
and one for falling supply voltage. The hysteresis pre-
vents the output from oscillating (chattering) when V
CC
is near the voltage threshold.
Transients Immunity
These devices are relatively immune to short-duration
and falling V
CC
transients (glitches). The
Typical
Operating Characteristics
show the Maximum Transient
Duration vs. Threshold Overdrive graph, for which
OUT
is not asserted. The graph shows the maximum pulse
width that a falling V
CC
transient typically might have
before the devices are asserted. As the amplitude of
the transient increases, the maximum allowable pulse
width decreases.
Ensuring Valid Output Down to 0V
When V
CC
falls below 1V, the MAX6461/MAX6464 out-
put sinking capability is reduced. Therefore, high-
impedance CMOS logic inputs connected to
OUT
can
drift to undetermined voltages. This presents no prob-
lem in most applications, because most circuitry is
inoperative when V
CC
is below 1V. In applications
where
OUT
must be valid down to ground, add a pull-
down resistor to ground so any stray leakage currents
flow to ground, holding
OUT
low. Select a resistor large
enough not to load
OUT
and small enough to pull
OUT
to ground. For most applications, 100k
does not load
OUT
and pulls
OUT
to ground.
Ultra-Low-Power Voltage Detectors and
μP Supervisory Circuits
6
_______________________________________________________________________________________
DC/DC
CONVERTER
OUT
MAX6463
MAX6466
μ
P
SUSPEND
V
CC
OUT
IN
V
CC
3.6V
Li+
Figure 1. Interfacing to Different Logic Voltage Components
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6461UR47-T | Ultra-Low-Power Voltage Detectors and µ.P Supervisory Circuits |
| MAX6461UR48-T | Microprocessor CORE Voltage Regulator 2-4 Phase Buck PWM Controller; Temperature Range: 0°C to 70°C; Package: 20-SOIC T&R |
| MAX6461UR49-T | Microprocessor CORE Voltage Regulator 2-4 Phase Buck PWM Controller; Temperature Range: 0°C to 70°C; Package: 20-SOIC |
| MAX6461UR50-T | Microprocessor CORE Voltage Regulator 2-4 Phase Buck PWM Controller; Temperature Range: 0°C to 70°C; Package: 20-SOIC T&R |
| MAX6461XR25-T | Multi-Purpose Precision Multiphase PWM Controller With Optional Active Voltage Positioning; Temperature Range: 0°C to 70°C; Package: 20-QFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6461UR47 | 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-POWER VOLTAGE DETECTORS A - Rail/Tube |
| MAX6461UR47+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR DETECT 4.7V 3PIN SOT-23 - Rail/Tube |
| MAX6461UR47+T | 功能描述:監(jiān)控電路 Single uPower Voltage Monitor 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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6461UR47-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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6461UR48 | 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-POWER VOLTAGE DETECTORS A - Rail/Tube |
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