LTC4215 Linear Technology, LTC4215 Datasheet - Page 20

• Manufacturer Part Number: LTC4215
• Description: Hot Swap Controller
• Manufacturer: Linear Technology

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APPLICATIO S I FOR ATIO
LTC4215
Table 2. CONTROL Register A (00h)—Read/Write
BIT
A7:6
A5
A4
A3
A2
A1
A0
Table 3. ALERT Register B (01h)—Read/Write
BIT
B7
B6
B5
B4
B3
B2
B1
B0
20
NAME
GPIO Confi gure
Test Mode Enable
Mass Write Enable Allows Mass Write Addressing; 1 = Mass Write Enabled, 0 = Mass Write Disabled (Default)
FET On Control
Overcurrent
Auto-Retry
Undervoltage
Auto-Retry
Overvoltage
Auto-Retry
NAME
Reserved
GPIO Output
FET Short Alert
EN State
Change Alert
Power Bad
Alert
Overcurrent
Alert
Undervoltage
Alert
Overvoltage
Alert
U
OPERATION
Not Used
Output Data Bit to GPIO Pin when Confi gured as Output. Defaults to 0
Enables Alert for FET Short Condition; 1 = Enable Alert, 0 = Disable Alert (Default)
Enables Alert when EN Changes State; 1 = Enable Alert, 0 Disable Alert (Default)
Enables Alert when Output Power is Bad; 1 = Enable Alert, 0 Disable Alert (Default)
Enables Alert for Overcurrent Condition; 1 = Enable Alert, 0 Disable Alert (Default)
Enables Alert for Undervoltage Condition; 1 = Enable Alert, 0 Disable Alert (Default)
Enables Alert for Overvoltage Condition; 1 = Enable Alert, 0 Disable Alert (Default)
OPERATION
Enables Test Mode to Disable the ADC; 1 = ADC Disable, 0 = ADC Enable (Default)
On Control Bit Latches the State of the ON Pin at the End of the Debounce Delay; 1 = FET On, 0 = FET Off
Overcurrent Auto-Retry Bit; 1 = Auto-Retry After Overcurrent, 0 = Latch Off After Overcurrent (Default)
Undervoltage Auto-Retry; 1 = Auto-Retry After Undervoltage (Default), 0 = Latch Off After Undervoltage
Overvoltage Auto-Retry; 1 = Auto-Retry After Overvoltage (Default), 0 = Latch Off After Overvoltage
FUNCTION
Power Good (Default)
Power Good
General Purpose Output
General Purpose Input
U
W
A6
0
0
1
1
U
A7
0
1
0
1
GPIO = ⎯ C ⎯ 3
GPIO = C3
GPIO = B6
C6 = GPIO
GPIO PIN
4215fb