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參數(shù)資料
| 型號： | ADM1041ARQ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | Secondary-Side Controller with Current Share and Housekeeping |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO24 |
| 封裝： | MO-137AE, QSOP-24 |
| 文件頁數(shù)： | 18/64頁 |
| 文件大小： | 1063K |
| 代理商： | ADM1041ARQ-REEL |
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ADM1041
Mnemonic
Pulse_OK
Rev. A | Page 18 of 64
Description
As well as providing ac sense, the preceding connection to the transformer is used to gate the
operation of the OrFET circuit. If the output of the transformer is good and has no problems, the
OrFET circuit allows gate drive to the OrFET.
AC Sense Hysteresis. Configurable voltage on the ac sense input allows the ac sense upper and lower
threshold to be adjusted to suit different amounts of low frequency ripple present on the bulk
capacitor.
An alternate form of ac sense can be accepted by the ASIC. This may in the form of an opto-coupled
signal from the primary side where the actual level sensing might be done. As with the above, while
ac is low and UVB is disabled, AC_OK is false and DC_OK is true. Any brownout protection that might
be required on the primary is done on the primary side.
At start-up, the voltage reference to the voltage error amplifier is brought up slowly in approximately
127 steps to provide a controlled rate of rise of the output voltage.
An OVP fault on the auxiliary supply to the ASIC causes a standard OVP operation (see the OVP
function).
A UVL fault on the auxiliary supply to the IC causes a standard UVP operation (see the UVP function).
In this mode, the housekeeping circuit attempts to restart the supply after an undervoltage event at
about 1 second intervals. No other fault can initiate auto-restart.
The internal precision reference is monitored by a separate reference for overvoltage and allows truly
redundant OVP. The externally available reference is also monitored for an undervoltage that would
indicate a short on the pin.
The internal ASIC ground is constantly monitored against the remote sense negative pin. If the chip
ground goes positive with respect to this pin, it indicates that the chip ground is open-circuit either
inside the ASIC or the external wiring. The ASIC would be latched off, similar to an OV event.
AC Hysteresis
AC
SENSE
2
Soft-start
V
DD
–OVP
V
DD
–UVL
AutoRestart Mode
V
REF
–MON
GND–MON
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM1041ARQ-REEL7 | 功能描述:IC PWR SUP MON/LOAD SHARE 24QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041ARQZ | 功能描述:IC PWR SUPP MON/LOAD SHAR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041ARQZ-REEL | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041ARQZ-REEL7 | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041ARQZ-RL7 | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
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