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| 型号： | MAX869LEEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/8页 |
| 文件大小： | 0K |
| 描述： | IC SW P-CH HIGH SIDE 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 高端开关 |
| 输出数： | 1 |
| Rds（开）： | 70 毫欧 |
| 内部开关： | 是 |
| 电流限制： | 2.0A |
| 输入电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
| 产品目录页面： | 1409 (CN2011-ZH PDF) |
2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
IN
P
OUT
FAULT
P
MAX869L
MAX869L
SET
N
REPLICA
AMPLIFIER
ON
ON
P
CURRENT-LIMIT
SET
GND
R SET
HOT
AMPLIFIER
1.24V
R SET
Figure 2. Setting the Current Limit
ON
CONTROL
CIRCUITRY
GND
Fault Indicator
The MAX869L provides a fault output ( FAULT ). This
open-drain output goes low when in current limit or
when the die temperature exceeds 135°C. A 100k ?
pull-up resistor from FAULT to IN provides a logic-
Figure 1. Functional Diagram
Short-Circuit Protection
The MAX869L is a short-circuit-protected switch. In the
event of an output short circuit (V OUT ≤ 1.6V typical),
the current through the switch is limited by the internal
current-limiting error amplifier to 1.4 x I LIMIT . When the
short-circuit condition is removed, the current-limit
amplifier sets the current limit back to I LIMIT .
For a high ? V DS / ? t during an output short-circuit condi-
tion, the switch turns off and disconnects the input supply
from the output. The current-limiting amplifier then slow-
ly turns the switch on with the output current limited to
1.4 x I LIMIT . When the short-circuit condition is
removed, the current limit is set back to I LIMIT . Refer to the
Fast Current-Limit Response and Slow Current-Limit
Response graphs in the Typical Operating Characteristics.
Thermal Shutdown
The MAX869L features thermal shutdown. The switch
turns off when the junction temperature exceeds 135 ° C.
Once the device cools by 10°C, the switch turns back
on. If the fault condition is not removed, the switch
cycles on and off, resulting in a pulsed output.
control signal.
__________Applications Information
Input Capacitor
To limit the input voltage drop during momentary output
short-circuit conditions, connect a capacitor from IN to
GND. A 1μF ceramic capacitor is adequate for most
applications; however, higher capacitor values further
reduce the voltage drop at the input.
Output Capacitor
Connect a 0.1μF capacitor from OUT to GND to prevent
inductive parasitics from pulling OUT below GND dur-
ing turn-off. USB applications require C OUT to be at
least 120μF. This larger output capacitance slows the
output rise and fall times, as shown in the Typical
Operating Characteristics , but does not adversely
affect the MAX869L’s turn-off response time.
Layout and Thermal-Dissipation
Considerations
To take full advantage of the switch-response time to
output short-circuit conditions, it is very important to
keep all traces as short as possible to reduce the effect
of undesirable parasitic inductance. Place input and
output capacitors as close as possible to the device
(less than 5mm).
_______________________________________________________________________________________
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| MAX869LEEE+ | 功能描述:电源开关 IC - 配电 2A Current-Ltd High Side PCh Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MAX869LEEE+T | 功能描述:电源开关 IC - 配电 2A Current-Ltd High Side PCh Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MAX869LEEE-T | 功能描述:电源开关 IC - 配电 2A Current-Ltd High Side PCh Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MAX8702ETP | 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX8702ETP+ | 功能描述:功率驱动器IC Dual-Phase MOSFET Driver w/Temp Sensor RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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