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參數資料
| 型號： | MAX5978ETJ+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 32/38頁 |
| 文件大小： | 2412K |
| 描述： | IC CTLR HOT-SWAP 32TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 類型： | 熱交換控制器 |
| 應用： | 刀峰式服務器，網絡應用設備 |
| 內部開關： | 無 |
| 電流限制： | 可調 |
| 電源電壓： | 2.7 V ~ 16 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 32-TQFN-EP（5x5） |
| 包裝： | 管件 |
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0 to 16V, Hot-Swap Controller with 10-Bit
Current, Voltage Monitor, and 4 LED Drivers
32
FAULT Output
When an overcurrent event (fast trip or slow trip) causes
the device to shut down the hot-swap channel, an open-
drain FAULT output is asserted low. Note that the FAULT
output is not asserted for shutdowns caused by critical
undervoltage or overvoltage events.
The FAULT output is cleared when the channel is dis-
abled by pulling ON low or by clearing the bits in register
chxen.
ALERT Output
ALERT is an open-drain output that is asserted low any
time that a fault or other condition requiring attention has
occurred. The state of the ALERT output is also indicated
by status3[4].
The ALERT output is the logical NOR of registers 0x31,
0x35, 0x36, and 0x37, so when the ALERT output goes
low, the system microcontroller should query these reg-
isters through the I
2
C interface to determine the cause of
the ALERT assertion.
LED Set Registers
The device has four open-drain LED drivers/user-pro-
grammable GPIOs. When programmed as LED drivers,
each driver can sink up to 25mA of current. Table 50
shows the register that enables the drivers as either LED
drivers or GPIOs.
When any of the LED_ Set bit in the register is set to 1,
the corresponding open-drain LED driver is turned off.
The LED_Flash bits enable each corresponding LED
driver to flash on and off at 1Hz frequency regardless of
the condition of the corresponding LED_ Set bit.
Bits 74 in Table 51 set the LED flashing drivers to be
either in-phase or out-of-phase with the internal 1Hz
clock. Bits 30 enable the 4FA pullup current to the cor-
responding output.
Table 52 shows the LED state register. The LED state reg-
ister is a read-only register. When the LEDs are disabled,
the pins are configured as GPIOs. Applying an external
voltage below 0.4V sets the GPIOs low and, applying an
external voltage above 1.4V, sets the GPIOs high.
Table 50. LED_Flash/GPIO Enable Register
Table 51. LED Phase/Weak Pullup Enable Register
Description:
LED_ flash/GPIO enable register
Register Title:
LED_flash
Register Address:
0x43
RESET
VALUE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LED4
Flash
LED3
Flash
LED2
Flash
LED1 Flash
LED4 Set
LED3 Set
LED2 Set
LED1 Set
0x0F
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Description:
LED phase/weak pullup enable
Register Title:
LED_ph_pu
Register Address:
0x44
RESET
VALUE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LED4
Phase
LED3
Phase
LED2
Phase
LED1
Phase
LED4 Weak
PU
LED3 Weak
PU
LED2 Weak
PU
LED1 Weak
PU
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5978ETJ+ | 功能描述:熱插拔功率分布 0-16V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5978ETJ+T | 功能描述:熱插拔功率分布 0-16V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5980EVKIT# | 功能描述:電源開關 IC - POE / LAN MAX5980 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 開關數量:Single 開關配置:SPST 開啟電阻（最大值）:7.3 Ohms 串話: 帶寬: 開啟時間（最大值）:13 ns 關閉時間（最大值）:20 ns 切換電壓（最大）: 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風格:Through Hole 封裝 / 箱體:TO-220F-6 |
| MAX5980EVKIT+ | 功能描述:電源開關 IC - POE / LAN RoHS:否 制造商:Fairchild Semiconductor 開關數量:Single 開關配置:SPST 開啟電阻（最大值）:7.3 Ohms 串話: 帶寬: 開啟時間（最大值）:13 ns 關閉時間（最大值）:20 ns 切換電壓（最大）: 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風格:Through Hole 封裝 / 箱體:TO-220F-6 |
| MAX5980GTJ+ | 功能描述:電源開關 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 開關數量:Single 開關配置:SPST 開啟電阻（最大值）:7.3 Ohms 串話: 帶寬: 開啟時間（最大值）:13 ns 關閉時間（最大值）:20 ns 切換電壓（最大）: 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風格:Through Hole 封裝 / 箱體:TO-220F-6 |
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