LTC4245IUHF Linear Technology, LTC4245IUHF Datasheet - Page 23

• Manufacturer Part Number: LTC4245IUHF
• Description: IC,Power Control/Management,CMOS,LLCC,38PIN,PLASTIC
• Manufacturer: Linear Technology

Specifications of LTC4245IUHF

• Family Name: LTC4245
• Package Type: QFN EP
• Operating Supply Voltage (min): 2.25/4.25/10.2/-10.2V
• Operating Supply Voltage (max): 0/10/20/-20V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 5mm
• Product Length (mm): 7mm
• Mounting: Surface Mount
• Pin Count: 38
• Lead Free Status / Rohs Status: Not Compliant

APPLICATIO S I FOR ATIO
SDA
SCL
CONDITION
START
S
U
U
ADDRESS
S
a6 - a0
1 - 7
ADDRESS
0 1 a4:a0
S
ADDRESS
Figure 16. LTC4245 Serial Bus SDA Alert Response Protocol
S
0 1 a4:a0
Figure 15. LTC4245 Serial Bus SDA Read Word Protocol
Figure 13. LTC4245 Serial Bus SDA Write Word Protocol
Figure 12. LTC4245 Serial Bus SDA Write Byte Protocol
Figure 14. LTC4245 Serial Bus SDA Read Byte Protocol
W
ADDRESS
0 1 a4:a0
W
R/W
0
8
S
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
S
A
0
Figure 11. Data Transfer over I
W
0
ADDRESS
0 1 a4:a0
COMMAND
ACK
xxx b4:b0
RESPONSE
W
0
ADDRESS
A
0
0001100
9
ALERT
U
A
0
COMMAND
xxx b4:b0
W
0
COMMAND
xxx b4:b0
1 - 7
A
0
A
0
R
1
b7 - b0
DATA
S
COMMAND
xxx b4:b0
A
0
A
0
ADDRESS
0 1 a4:a0
A : ACKNOWLEDGE (LOW)
A : NOT ACKNOWLEDGE (HIGH)
R : READ BIT (HIGH)
W : WRITE BIT (LOW)
S : START CONDITION
P : STOP CONDITION
A
0
S
01 a4:a0 0
ADDRESS
8
DATA
b7:b0
ADDRESS
0 1 a4:a0
DEVICE
A
0
2
R
1
C or SMBus
DATA
b7:b0
A
0
ACK
9
A
0
R
1
xxxxxxxx
DATA
A
1
DATA
b7:b0
A
0
A
0
4245 F16
4245 F12
P
P
1 - 7
DATA
b7:b0
A
0
A
0
b7 - b0
DATA
DATA
b7:b0
4245 F13
A
1
P
4245 F14
P
A
1
8
P
ACK
9
LTC4245
CONDITION
STOP
P
4245 F11
23
4245fa