MAX5963UTL+T【PDF 10/20 页】IC HOT SWAP DIO ORING CTL 40TQFN

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录43

6页 7页 8页 9页 [10页]11页 12页 13页 14页

Dual, 7.5V to 76V, Hot-Swap and

Diode ORing Controller

10 ______________________________________________________________________________________

Pin Description (continued)

NAME

FUNCTION

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 pullup current to 5.5V (typ) above OUTB when active. GATE2B is identical to, but

independent of, GATE1B.

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).

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).

GND

Ground

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.

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.

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.

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.

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.

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.

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 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.

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.

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.

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.

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式