- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384688 > MAX5910 (Maxim Integrated Products, Inc.) +65V Simple Swapper Hot-Swap Switches PDF資料下載
參數(shù)資料
| 型號： | MAX5910 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | +65V Simple Swapper Hot-Swap Switches |
| 中文描述： | +65V、Simple Swapper熱插拔開關(guān) |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 273K |
| 代理商： | MAX5910 |
M
+65V Simple Swapper Hot-Swap Switches
8
_______________________________________________________________________________________
Detailed Description
The MAX5910/MAX5917 are fully integrated hot-swap
switches for positive power-supply rails. The devices
allow safe insertion and removal of circuit cards into
live backplanes or ports without causing glitches on the
backplane power-supply rail. During startup these
devices act as current regulators using their on-board
FET to limit the amount of current drawn by the load to
280mA for MAX5910, 567mA for MAX5917A, and
420mA for MAX5917B. If the required load current
exceeds that current limit, the internal switch behaves
like a constant current source.
The MAX5910/MAX5917 monitor the input voltage, the
output voltage, the output current, and the die tempera-
ture. They assert
IFAULT
and PGOOD accordingly if
they detect an error condition.
A zero-current load detection feature activates if the
load current drops below IF
TH
for over 12ms. The
MAX5910/MAX5917 also include an ENABLE input
allowing the host system to turn the FET on or off.
Normal Operation
Startup
When power is first applied with ENABLE high, or when
ENABLE is asserted, the MAX5910/MAX5917A/
MAX5917B limit the current to the load to 280mA/
567mA/420mA. PGOOD is asserted high 12ms after the
output voltage exceeds the power-good threshold.
PGOOD is pulled low if V
OUT
is less than 70% V
IN
.
Zero-Current Load Fault
A zero-current load detection feature activates if the
load current drops below IF
TH
for more than 12ms. The
MAX5910/MAX5917 flag the zero-current condition but
do not disconnect the load.
IFAULT
is deasserted
whenever the load current exceeds the IF
TH
+ IF
HYS
zero-current detection threshold.
Undervoltage Lockout Fault
If V
IN
≤
UVLO, where UVLO is the desired voltage at
which the UVLO fault occurs, the internal FET is turned
off and
IFAULT
and PGOOD are pulled low. The default
UVLO voltage is 26.5V, but it can be adjusted using an
external resistive-divider (see the
Changing the
Undervoltage Lockout Setting
section).
Pin Description
PIN
MAX5910
MAX5917A/B
NAME
FUNCTION
1
2
UVLO
Undervoltage Lockout Input. Leave UVLO open circuit for the default
setting of 26.5V. Alternatively, UVLO can be connected to a resistive-
divider to set a desired lockout voltage. See the
Changing the
Undervoltage Lockout
Setting
section.
2
3
V
IN
Voltage Input Terminal. Bypass V
IN
to GND with a 0.1μF capacitor to
improve noise immunity.
3
1, 6, 8, 9, 15, 16
N.C.
No Connection. Not internally connected.
4
7
ENABLE
3.3V Logic Input (TTL compatible), Active-High. Turns the internal FET
on or off. Drive ENABLE high to enable V
OUT
. Drive ENABLE low to
disable V
OUT
.
5
10
PGOOD
Open-Drain Logic Output, Active-High. PGOOD signals that the output
is within specification. When the output is less than 70% of the input, the
PGOOD signal is pulled low. Connect a 10k
pullup resistor (R) to 3.3V.
6
11
IFAULT
Open-Drain Logic Output, Active-Low.
IFAULT
is asserted when the
output current falls below the IF
TH
nominal threshold or when the switch
is off. Connect a 10k
pullup resistor (R) to 3.3V.
7
8
4, 5, 12, 13
14
GND
V
OUT
Ground
Voltage Output Terminal
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5910ESA | +65V Simple Swapper Hot-Swap Switches |
| MAX5919AEEE | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
| MAX5919 | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
| MAX5918-MAX5919 | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
| MAX5919LEEE | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5910ESA | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5910ESA+ | 功能描述:熱插拔功率分布 65V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5910ESA+T | 功能描述:熱插拔功率分布 65V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5910ESAT | 制造商:MAXIM 功能描述:NEW |
| MAX5910ESA-T | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。