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參數(shù)資料
| 型號(hào)： | MAX44269EWL+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR DUAL LP 9WLP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 通用 |
| 元件數(shù)： | 2 |
| 輸出類型： | 開路漏極 |
| 電壓 - 電源，單路/雙路(±)： | 1.8 V ~ 5.5 V |
| 電流 - 靜態(tài)（最大值）： | 1µA |
| 磁滯： | 6mV |
| 封裝/外殼： | 9-WFBGA，WLBGA |
| 安裝類型： | 表面貼裝 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | MAX44269EWL+TDKR |
Maxim Integrated Products 10
MAX44269
1.3mm x 1.3mm, Low-Power
Dual Comparator
Logic-Level Translator
Due to the open-drain output of the IC, the device can
translate between two different logic levels (Figure 4). If
the internal 4 mV hysteresis is not sufficient, then exter-
nal resistors can be added to increase the hysteresis as
Power-On Reset Circuit
The IC can be used to make a power-on reset circuit as
displayed in Figure 5. The positive input provides the
ratiometric reference with respect to the power supply
and is created by a simple resistive divider. Choose
reasonably large values to minimize the power consump-
tion in the resistive divider. The negative input provides
the power-on delay time set by the time constant of the
RC circuit formed by R2 and C1. This simple circuit can
be used to power up the system in a known state after
ensuring that the power supply is stable. Diode D1 pro-
vides a rapid reset in the event of unexpected power loss.
Relaxation Oscillator
The IC can also be used to make a simple relaxation
oscillator (Figure 6). By adding the RC circuit R5 and
C1, a standard Schmidt Trigger circuit referenced to
a set voltage is converted into an astable multivibra-
tor. As shown in Figure 7, IN- is a sawtooth waveform
with capacitor C1 alternately charging and discharging
through resistor R5. The external hysteresis network
formed by R1 to R4 defines the trip voltages as:
T_RISE
CC
T_FALL
CC
R3 x R4
V
R2R3 R2R4 R3R4
R4R5(R1 R2 R3)
R1R3R4
V
R4R5(R1 R2 R3) R1R3R4
R2(R1R3 R3R5 R1R5)
=
+
++
+
=
++
+
+
++
Using the basic time domain equations for the charging
and discharging of an RC circuit, the logic-high time,
logic-low time, and frequency can be calculated as:
=
T_FALL
LOW
T_RISE
V
R5C1 ln
t
V
Figure 6. Relaxation Oscillator
Figure 5. Power-On Reset Circuit
Figure 4. Logic-Level Translator
VCC
R3
R2
R4
R5
R1
GND
OUT
MAX44269
VCC
C1
VCC
R1
R4
R3
D1
R2
C1
GND
RESET
MAX44269
VCC
VPULL
VIN
VREF
GND
OUT
R1
MAX44269
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| MAX4426C/D | 功能描述:功率驅(qū)動(dòng)器IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4426C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX4426C/D+ | 功能描述:功率驅(qū)動(dòng)器IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4426CPA | 功能描述:功率驅(qū)動(dòng)器IC Dual High-Speed 1.5A MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4426CPA+ | 功能描述:功率驅(qū)動(dòng)器IC Dual High-Speed 1.5A MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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