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參數(shù)資料
| 型號(hào)： | MAX5963UTL+T |
| 廠商： | Maxim Integrated |
| 文件頁(yè)數(shù)： | 10/20頁(yè) |
| 文件大?。?/td> | 291K |
| 描述： | IC HOT SWAP DIO ORING CTL 40TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 熱交換控制器 |
| 應(yīng)用： | FireWire? 應(yīng)用程序 |
| 內(nèi)部開(kāi)關(guān)： | 無(wú) |
| 電源電壓： | 7.5 V ~ 76 V |
| 工作溫度： | 0°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤(pán) |
| 供應(yīng)商設(shè)備封裝： | 40-TQFN-EP（6x6） |
| 包裝： | 帶卷 (TR) |
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Dual, 7.5V to 76V, Hot-Swap and
Diode ORing Controller
10 ______________________________________________________________________________________
Pin Description (continued)
PIN
NAME
FUNCTION
24
GATE2B
Channel B Current-Limiter Switch Gate-Drive Output 2. Referenced to OUTB. Connect GATE2B to
the gate of the second n-channel MOSFET (see the Typical Operating Circuit). GATE2B is a charge
pump with a 50礎(chǔ) pullup current to 5.5V (typ) above OUTB when active. GATE2B is identical to, but
independent of, GATE1B.
26
FAULTB
Channel B Current-Fault Status Output. FAULTB is an open-drain output. FAULTB goes low after a
current-limit or circuit-breaker fault on channel B has exceeded the current-limit or circuit-breaker
timeout period (see the Current-Fault Status Output (FAULT_) section).
27
FAULTA
Channel A Current-Fault Status Output. FAULTA is an open-drain output. FAULTA goes low after a
current-limit or circuit-breaker fault on channel A has exceeded the current-limit or circuit-breaker
timeout period (see the Current-Fault Status Output (FAULT_) section).
28
GND
Ground
29
RETRY
Latch or Autoretry Fault Management Selection Input. Internally pulled to ground. Connect RETRY to
BP or PS for autorestart mode. Leave RETRY floating to select latchoff mode after a current-
limit/circuit-breaker timeout.
31
TCL
Current-Limit Timer Programming Input. Connect TCL to BP or PS for the default timeout period or
connect a resistor from TCL to GND to program the current-limit timeout.
32
TCB
Circuit-Breaker Timer Programming Input. Connect TCB to BP or PS for the default timeout period or
connect a resistor from TCB to GND to program the circuit-breaker timeout.
33
ONB
Channel B On/Off Control Input. ONB sets the undervoltage lockout threshold for channel B and
resets the channel after a fault latch. Drive ONB high (>1.24V (typ)) to turn on channel B. Drive ONB
low to disable the channel. Connect a resistive-divider from PS to ONB and to GND to program the
desired undervoltage lockout threshold for the channel.
34
ONA
Channel A On/Off Control Input. ONA sets the undervoltage lockout threshold for channel A and
resets the channel after a fault latch. Drive ONA high (>1.24V (typ)) to turn on channel A. Drive ONA
low to disable the channel. Connect a resistive-divider from PS to ONA and to GND to program the
desired undervoltage lockout threshold for the channel.
35
FOSO
Fast-Off/Slow-On Logic Input. GATE1A, GATE2A, GATE1B, and GATE2B immediately pull low when
FOSO exceeds the 1.24V (typ) threshold. The MAX5963 waits for the 1s (typ) turn-on delay once
FOSO falls below the threshold hysteresis before allowing either channel to turn back on.
36
ENZ
Enable Z Logic Input. Pull ENZ up to PWR for logic-high. ENZ is a logic input that is ANDed with the
OR combination of ENX and ENY. The output of this logic determines whether the MAX5963 goes
into PWR shutdown mode. In PWR shutdown mode, the MAX5963 draws less than 10礎(chǔ) from PWR.
However, if the logic combination of ENX, ENY, and ENZ is low, the chip can still be powered
through either channel. See the Power-Supply Enables (ENX, ENY, and ENZ) section.
37
ENY
Logic-Enable Input Control GATEPS On/Off. Pull up to PWR for logic-high. See the Power-Supply
Enables (ENX, ENY, and ENZ) section.
38
ENX
Logic-Enable Input Control GATEPS On/Off. Pull up to PWR for logic-high. See the Power-Supply
Enables (ENX, ENY, and ENZ) section.
EP
Exposed Pad. Connect EP to the GND plane. EP functions as a heatsink to maximize thermal
dissipation. Do not use as the main ground connection.
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