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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): 15/64頁
文件大小: 1063K
代理商: ADM1041ARQ-REEL
ADM1041
Pin No.
10
Rev. A | Page 15 of 64
Mnemonic
AC
SENSE
2/MON2
Description
AC/Bulk Sense Input 2 or Monitor 2 Input.
AC
SENSE
2: This alternative AC
SENSE
input can be used when the AC
SENSE
source must be different from
that used for the OrFET. It also allows dc and opto-coupled signals that are not suitable for the OrFET
control.
MON2: When MON2 is selected for this pin, its input is compared against a 1.25 V comparator that
could be used for monitoring a post regulated output; includes overvoltage, undervoltage, and
overtemperature conditions.
CBD: The crowbar drive pin allows implementation of a fast shutdown in case of a load overvoltage
fault. The pin can be configured as an open-drain N-channel or P-channel and is suitable for driving a
sensitive gate SCR crowbar. An external transistor is required if a high gate current is needed. Either
polarity may be selected.
ALERT: This pin can be configured to provide an ALERT function in microprocessor-supported
applications whereby any of several ICs in a redundant system that detects a problem can interrupt
and shut down the power supply. An alternative use is as a general-purpose logic output signal.
Power Enable. This pin can be configured as an open-drain N-channel or P-channel that typically
drives the PEN optocoupler. Providing that the PSON pin has been asserted to turn the output on, and
that there are no faults, this pin drives an optocoupler on enabling the primary PWM circuit. Either
polarity may be selected.
SCL: SMBus Serial Clock Input.
AC_OKLink: In non-microprocessor applications, this pin can be programmed to give the status of
AC
SENSE
to all the ICs on the same bus. The main effect is to turn on undervoltage blanking whenever
the sense circuit monitoring ac or bulk dc detects a low voltage.
SDA: SMBus Serial Data Input and Output.
PS
ON
LINK: In non-microprocessor applications, this pin can be programmed to provide the PSON
status to other ICs. This allows just one IC to be the PSON interface to the host system, or the PS
ON
LINK
itself can be the PSON interface.
Chip Address Pin. There are three addresses possible using this pin, which are achieved by tying ADD0
to ground, tying to V
DD
, or being left to float. One address bit is available via programming at the
device/daughter card level so the total number of addressable ICs can be increased to six.
PSON: In non-microprocessor configurations, this is power supply on. As a standard I/O, this pin is
rugged enough for direct interface with a customer’s system. Either polarity may be selected.
MON3: When MON3 is selected for this pin, its input is compared against a 1.25 V comparator that
could be used for monitoring a post-regulated output; includes overvoltage, undervoltage, and
overtemperature conditions.
DC_OK: This pin is the output of a general-purpose digital I/O that can be configured as open-drain
N-channel or open-drain P-channel suitable for wire-ORing with other ICs and direct interfacing with a
customer’s system. Either polarity may be selected.
MON4: When MON4 is selected for this pin, its input is compared against a 1.25 V comparator that
could be used for overtemperature protection and for monitoring a post-regulated output; includes
overvoltage, undervoltage, and overtemperature conditions.
Voltage Reference, Buffered Output, Overtemperature Protection, or Monitor 5.
V
REF
: This is a 2.5 V precision reference voltage capable of sourcing 2 mA. This function is continuously
monitored, and if the voltage falls below 2.0 V, PEN is disabled. Forcing this pin's voltage does not
affect the integrity of the internal reference.
AC_OK: This option can be configured as N-channel or P-channel and as normal or inverted polarity.
At system level, a true AC_OK is used to indicate that the primary bulk voltage is high enough to
support the system, and when false, that dc output is about to fail.
MON5: A further option is to configure this as an analog input, MON5, with a flexible hysteresis and
trimmable 2.5 V reference that makes this pin particularly suitable for overtemperature protection
(OTP) sensing. Since hysteresis uses a switched 100 μA current source, hysteresis can be adjusted via
the source impedance of the external circuit. It can also be used for overvoltage and undervoltage
functions.
FET Gate Enable. When supporting an OrFET circuit, this is the gate drive pin. Since the open-drain
voltage on the chip is limited to V
DD
, an external level shifter is required to drive the higher gate
voltages suitable for the OrFET. This pin is configured as an open-drain N-channel. Either output
polarity, low = on or low = off, may be selected.
This pin is used as the ground input reference for the current share and load voltage sense circuits. It
should be tied to ground at the common remote sense location. The input impedance is about 35 k
to ground.
11
CBD/ALERT
12
PEN
13
SCL/AC_OKLink
14
SDA/PS
ON
LINK
15
ADD0
16
PSON/MON3
17
DC_OK/MON4
18
V
REF
/AC_OK/OTP/MON5
19
F
G
20
V
S
–/SHRS–
相關PDF資料
PDF描述
ADM1041ARQ-REEL7 Secondary-Side Controller with Current Share and Housekeeping
ADM1041 Secondary-Side Controller with Current Share and Housekeeping
ADM1041ARQ Secondary-Side Controller with Current Share and Housekeeping
ADM1041A Secondary-Side Controller with Current Share and Housekeeping
ADM1041AARQZ Secondary-Side Controller with Current Share and Housekeeping
相關代理商/技術參數(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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