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| 型号： | MAX5934EEE+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/15页 |
| 文件大小： | 268K |
| 描述： | IC HOT-SWAP CONTROLLER 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 热交换控制器 |
| 应用： | 通用 |
| 内部开关： | 无 |
| 电源电压： | 33 V ~ 80 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 |
Positive High-Voltage, Hot-Swap Controllers with
Selectable Fault Management and Status Polarity
_______________________________________________________________________________________ 9
Detailed Description
The MAX5934/MAX5934A are fully integrated hot-swap
controllers for positive supply rails. These devices allow
for the safe insertion and removal of circuit cards into
live backplanes without causing glitches on the back-
plane power-supply rail. During startup, the MAX5934/
MAX5934A act as current regulators using an external
sense resistor and MOSFET to limit the amount of cur-
rent drawn by the load.
The MAX5934A operates from a +9V to +80V supply
voltage range and has a default UVLO set to +8.3V.
The MAX5934 operates from a +33V to +80V supply
voltage range and has a default UVLO set to +31V. The
UVLO threshold is adjustable using a resistive divider
connected from V
CC
to ON to GND (see R2 and R3 in
Figure 5).
The MAX5934/MAX5934A monitor input voltage, output
voltage, output current, and die temperature. These
devices feature three power-good outputs (PWRGD_)
to indicate status by monitoring the voltage at FB1,
FB2, and GATE (see the Power-Good (PWRGD_)
Detection section). PWRGD1 indicates an output-volt-
age status, PWRGD2 can be used to indicate an over-
voltage condition on the main power-supply rail, and
PWRGD3 asserts when GATE voltage has charged to
4.3V above the supply rail. PWRGD3 deasserts when
the TIMER voltage exceeds a 1.233V threshold in
response to an extended fault condition.
The MAX5934/MAX5934A control gate voltage on the
external MOSFET to limit load current at startup and at
overload to a value determined as:
MAX5934
MAX5934A
ON
C
L
OUT
GATE
SENSE
V
CC
16
14
11
9
4
6
5
7
12
8
M1
R1
1k&, 5%
R
SENSE
0.025&
C1
10nF
R
G
10&
5%
R4
59k&
1%
R6
24k&
5%
R7
24k&
5%
R10
1k&
1%
R9
90k&
1%
R2
49.9k&
1%
V
IN
R3
3.4k&
1%
C
TIMER
0.68礔
R
L
R5
3.57k&
1%
FB1
2
10
1
3
15
PWRGD1
PWRGD2
TIMER
LATCH/RETRY
V
CC
FB2
PWRGD3
V
MONITOR
PWRGD1
PWRGD2
PWRGD3
DC
GND
V
CC
POL_SEL
V
CC
IRF530
Figure 5. Application Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5934EEE+ | 功能描述:热插拔功率分布 Positive Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5934EEE+T | 功能描述:热插拔功率分布 Positive Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5934EEE-T | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5935CAX | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5935CAX+ | 功能描述:热插拔功率分布 Quad Network Power Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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