參數(shù)資料
型號(hào)： 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(yè)數(shù)： 20/32頁(yè)
文件大?。?/td> 280K
代理商： LTC4222IUH#TRPBF
LTC4222
27
4222fa
APPLICATIONS INFORMATION
Table 5. STATUS Registers C – Read
BIT STATUS 1 (D2h)
STATUS 2 (D6h)
OPERATION
7
FET On
1 = FET On, 0 = FET Off
6
GPIO1 Input
GPIO2 Input
Reports the State of the GPIO1
Pin 1 = GPIO1 High, 0 = GPIO1 Low
5
Channel 1 FET Short Status
Channel 2 FET Short Status
Reports the State of the GPIO2
Pin 1 = GPIO2 High, 0 = GPIO2 Low
4
EN1 Status
EN2 Status
Indicates If the Channel is Enabled When EN is Low
1 = EN pin Low, 0 = EN pin High
3
Channel 1 Power Bad
Channel 2 Power Bad
Indicates Power is Bad When FB is Low
1 = FB Low, 0 = FB High
2
Channel 1 Overcurrent
Channel 2 Overcurrent
Indicates Overcurrent Condition; 1 = Overcurrent, 0 = Not Overcurrent
1
Channel 1 Undervoltage
Channel 2 Undervoltage
Indicates Input Undervoltage When UV is Low
1 = UV Low, 0 = UV High
0
Channel 1 Overvoltage
Channel 2 Overvoltage
Indicates Input Overvoltage When OV is High
1 = OV High, 0 = OV Low
Table 6. FAULT Registers D – Read/Write
BIT FAULT 1 (D3h)
FAULT 2 (D7h)
OPERATION
7
Reserved
6
Reserved
5
Channel 1 FET Short Fault
Occurred
Channel 2 FET Short Fault
Occurred
Indicates Potential FET Short was Detected When Measured Current
Sense Voltage Exceeded 1mV While FET was Off
1 = FET was Shorted, 0 = FET is Good
4
Channel 1 EN Changed State
Channel 2 EN Changed State
Indicates That the LTC4215-1 was Enabled or Disabled When EN
Changed State
1 = EN Changed State, 0 = EN Unchanged
3
Channel 1 Power Bad Fault
Occurred
Channel 2 Power Bad Fault
Occurred
Indicates Power was Bad When FB Went Low
1 = FB was Low, 0 = FB was High
2
Channel 1 Overcurrent Fault
Occurred
Channel 2 Overcurrent Fault
Occurred
Indicates Overcurrent Fault Occurred
1 = Overcurrent Fault Occurred, 0 = No Overcurrent Faults
1
Channel 1 Undervoltage Fault
Occurred
Channel 2 Undervoltage Fault
Occurred
Indicates Input Undervoltage Fault Occurred When UV Went Low
1 = UV was Low, 0 = UV was High
0
Channel 1 Overvoltage Fault
Occurred
Channel 2 Overvoltage Fault
Occurred
Indicates Input Overvoltage Fault Occurred When OV Went High
1 = OV was High, 0 = OV was Low
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