參數(shù)資料
型號： LTC4245CG#TRPBF
廠商： Linear Technology
文件頁數(shù)： 30/36頁
文件大?。?/td> 431K
描述： IC CNTRLR HOT SWAP 36-SSOP
標(biāo)準(zhǔn)包裝： 1,000
類型： 熱交換控制器
應(yīng)用： CompactPCI?
內(nèi)部開關(guān)： 無
電源電壓： 3.3V，5V，12V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 36-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 36-SSOP
包裝： 帶卷 (TR)
LTC4245
30
4245fa
Table 6. LTC4245 Register Address and Contents
REGISTER ADDRESS*
REGISTER NAME
READ/WRITE
DESCRIPTION
DECIMAL
HEX
0, 8
00h, 08h
STATUS (A)
R
System Status Information
1, 9
01h, 09h
ALERT (B)
R/W
Controls Which Faults Cause ALERT# Pin to be Pulled Low
2, 10
02h, 0Ah
CONTROL (C)
R/W
Controls Part Behavior Such As Auto-Retry, Sequencing, etc.
3, 11
03h, 0Bh
ON (D)
D3:D0 R/W**, D7:D4 R    Sets State and Reports Status of Switches
4, 12
04h, 0Ch
FAULT1 (E)
R/W
Fault Log for Undervoltage and Overcurrent
5, 13
05h, 0Dh
FAULT2 (F)
R/W
Fault Log for Power Bad, PGI, FET Short, BD_SEL#, GPIO1
6, 14
06h, 0Eh
GPIO (G)
G2:G0 R, G7:G3 R/W
Sets State and Reports Status of GPIO1 to GPIO3 pins, Control
Which Pin is Multiplexed to the GPIO Channel of ADC
7, 15
07h, 0Fh
ADCADR (H)
R/W
4-Bit ADC Channel Address for On-Demand ADC Measurement
16
10h
12VIN (I)
R/W
 
ADC 12V
IN
 Voltage Data
17
11h
12VSENSE (J)
R/W
 
ADC 12V Current Sense Voltage Data
18
12h
12VOUT (K)
R/W
 
ADC 12V
OUT
 Voltage Data
19
13h
5VIN (L)
R/W
 
ADC 5V
IN
 Voltage Data
20
14h
5VSENSE (M)
R/W
 
ADC 5V Current Sense Voltage Data
21
15h
5VOUT (N)
R/W
 
ADC 5V
OUT
 Voltage Data
22
16h
3VIN (O)
R/W
 
ADC 3V
IN
 Voltage Data
23
17h
3VSENSE (P)
R/W
 
ADC 3.3V Current Sense Voltage Data
24
18h
3VOUT (Q)
R/W
 
ADC 3V
OUT
 Voltage Data
25
19h
VEEIN (R)
R/W
 
ADC V
EEIN
 Voltage Data
26
1Ah
VEESENSE (S)
R/W
 
ADC 12V Current Sense Voltage Data
27
1Bh
VEEOUT (T)
R/W
 
ADC V
EEOUT
 Voltage Data
28 to 31
1Ch to 1Fh
GPIOADC (U)
R/W
 
ADC GPIO Voltage Data
All registers are 8-bit wide.
*    Register address MSBs b7  b5 are ignored.
**   Cannot set D3:D0 high if bit A1 set.
 
    Set bit C7 before writing.
Table 7. STATUS Register A (00h)- Read Only
BIT
NAME
OPERATION
A7
ADC Busy
Indicates State of ADC; 1 = ADC Busy Measuring, 0 = ADC Quiescent
A6
BD_SEL# Input
State of the BD_SEL# Pin; 1 =BD_SEL# High, 0 = BD_SEL# Low
A5
FET Short Present
Indicates Potential FET Short on at Least One Supply, if ADC Current Sense Voltage Measurement Exceeds 7
LSB While FET is Off; 1 = FET is Shorted, 0 = FET is Not Shorted
A4
LOCAL_PCI_RST# Output
LOCAL_PCI_RST# Pin Open-Drain Output State; 1 = High Impedance, 0 = Pulls Low
A3
PCI_RST# Input
State of the PCI_RST# Pin; 1 = PCI_RST# High, 0 = PCI_RST# Low
A2
Power Bad
Indicates Power Bad Present on at Least One of the Supply Outputs; 1 = Power Bad, 0 = No Power Bad
A1
SS Busy
Indicates SS Pin is Being Used to Ramp Up a Supply, Affects Writing to D3:D0 Bits
1 = SS Pin Ramping, Cannot Set D3:D0 High, 0 = SS Pin Reset
A0
Undervoltage
Indicates Undervoltage Present on at Least One of the Input Supply; 1 = Undervoltage, 0 = Not Undervoltage
APPLICATIO  S I FOR  ATIO
U
U
U
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