參數(shù)資料
型號： LTC4222IUH#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32
封裝： 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD-X, QFN-32
文件頁數(shù)： 19/32頁
文件大小： 280K
代理商： LTC4222IUH#TRPBF
LTC4222
26
4222fa
APPLICATIONS INFORMATION
Table 3. CONTROL Registers A – Read/Write
BIT CONTROL 1 (D0h)
CONTROL 2 (D4h)
OPERATION
7:6 GPIO1 Congure
GPIO2 Congure
FUNCTION
A6
A7
GPIO PIN
Power Good (Default)
0
GPIO = C3
PowerGood
0
1
GPIO = C3
General Purpose Output
1
0
GPIO = A5
General Purpose Input
1
C6 = GPIO
5
GPIO1 Output
GPIO2 Output
Output Data for GPIO Pins When Congured as General Purpose Output
1 = High Impedance, 0 = Pulled Low
4
Reserved
Mass Write Enable
Allows Mass Write Addressing
1 = Mass Write Enabled (Default), 0 = Mass Write Disabled
3
Channel 1 FET On Control
Channel 2 FET On Control
On Control Bit, Latches the State of the On Pin at the End of the
Debounce Delay
1 = FET On, 0 = FET Off
2
Channel 1 Overcurrent Auto-Retry
Channel 2 Overcurrent Auto-Retry
Overcurrent Auto-Retry Bit
1 = Auto-Retry After Overcurrent, 0 = Latch Off After Overcurrent
(Default)
1
Channel 1 Undervoltage Auto-Retry Channel 2 Undervoltage Auto-Retry Undervoltage Auto-retry
1 = Auto-Retry After Undervoltage (Default), 0 = Latch Off After
Undervoltage
0
Channel 1 Overvoltage Auto-Retry
Channel 2 Overvoltage Auto-Retry
Overvoltage Auto-retry
1 = Auto-Retry After Overvoltage (Default), 0 = Latch Off After
Overvoltage
Table 4. ALERT Registers B – Read/Write
BIT ALERT 1 (D1h)
ALERT 2 (D5h)
OPERATION
7
Reserved
Not Used
6
Reserved
Not Used
5
Channel 1 FET Short Alert
Channel 2 FET Short Alert
Enables Alert for FET Short Condition
1 = Enable Alert, 0 = Disable Alert (Default)
4
EN1 State Change Alert
EN2 State Change Alert
Enables Alert When EN Changes State
1 = Enable Alert, 0 = Disable Alert (Default)
3
Channel 1 Power Bad Alert
Channel 2 Power Bad Alert
Enables Alert When Output Power is Bad
1 = Enable Alert, 0 = Disable Alert (Default)
2
Channel 1 Overcurrent Alert
Channel 2 Overcurrent Alert
Enables Alert for Overcurrent Condition
1 = Enable Alert, 0 = Disable Alert (Default)
1
Channel 1 Undervoltage Alert
Channel 2 Undervoltage Alert
Enables Alert for Undervoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
0
Channel 1 Overvoltage Alert
Channel 2 Overvoltage Alert
Enables Alert for Overvoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
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