Related Parts .................................................................108
Rev. B
For more information
www.analog.com
3
LTC2975
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
Supply Voltages:
V
PWR
...................................................... –0.3V to 15V
V
DD33
.................................................... –0.3V to 3.6V
V
DD25
.................................................. –0.3V to 2.75V
Digital Input/Output Voltages:
ALERTB, SDA, SCL, CONTROL0, CONTROL1,
CONTROL2, CONTROL3 ....................... –0.3V to 3.6V
PWRGD, SHARE_CLK, WDI/RESETB,
WP, FAULTB0, FAULTB1........................ –0.3V to 3.6V
ASEL0, ASEL1 ....................................... –0.3V to 3.6V
Analog Voltages:
REFP ................................................... –0.3V to 1.35V
REFM .................................................... –0.3V to 0.3V
V
IN_SNS
, V
IN_SNS_CAP
............................ –0.3V to 15V
I
IN_SNSP
, I
IN_SNSM
to V
IN_SNS
............... –0.3V to 0.3V
V
SENSEP[3:0]
............................................. –0.3V to 6V
V
SENSEM[3:0]
............................................. –0.3V to 6V
I
SENSEP[3:0]
............................................... –0.3V to 6V
I
SENSEM[3:0]
.............................................. –0.3V to 6V
V
OUT_EN[3:0]
, AUXFAULTB ...................... –0.3V to 15V
V
DAC[3:0]
.................................................. –0.3V to 6V
T
SENSE[3:0]
............................................ –0.3V to 3.6V
I
IN_SNSP
, I
IN_SNSM
.................................. –0.3V to 15V
Operating Junction Temperature Range:
LTC2975C ................................................ 0°C to 70°C
LTC2975I ........................................... –40°C to 105°C
Storage Temperature Range ................ –65°C to 150°C*
Maximum Junction Temperature ........................ 125°C*
*See OPERATION section for detailed EEPROM derating
information for junction temperatures in excess of 105°C.
PIN CONFIGURATION
64 V
SENSEM1
63 V
SENSEP1
62 V
SENSEM2
61 V
SENSEP2
60 GND
59 GND
58 V
DAC3
57 V
DAC2
56 I
IN_SNSM
55 I
IN_SNSP
54 V
DAC1
53 V
DAC0
52 GND
51 V
IN_SNS_CAP
50 V
SENSEM3
49 V
SENSEP3
TOP VIEW
TOP VIEW
V
DAC0
4
5
I
IN_SNSM
1
48 I
SENSEM3
47 I
SENSEP3
46 I
SENSEM2
45 I
SENSEP2
44 I
SENSEM1
43 I
SENSEP1
42 I
SENSEM0
41 I
SENSEP0
40 REFM
39 GND
38 REFP
37 GND
36 ASEL1
35 ASEL0
34 T
SENSE3
33 CONTROL1
V
SENSEM1
A
V
DAC3
2
3
V
SENSEP1
V
SENSEP0
6
7
V
SENSEM3
V
SENSEP3
I
SENSEM2
I
SENSEP2
I
SENSEP1
T
SENSE3
CONTROL1
CONTROL0
I
SENSEM0
V
SENSEP0
1
V
SENSEM0
2
V
OUT_EN0
3
V
OUT_EN1
4
V
OUT_EN2
5
V
OUT_EN3
6
AUXFAULTB 7
DNC 8
V
IN_SNS
9
V
PWR
10
V
DD33
11
V
DD33
12
V
DD25
13
V
DD25
14
T
SENSE0
15
T
SENSE1
16
V
IN_SNS_CAP
V
SENSEP2
V
SENSEM0
B
V
OUT_EN0
V
OUT_EN1
C
V
OUT_EN2
V
OUT_EN3
D
AUXFAULTB
T
SENSE0
E
F
CONTROL2
G
I
IN_SNSP
V
DAC1
I
SENSEM3
V
SENSEM2
V
DAC2
GND I
SENSEP3
GND
DNC V
IN_SNS
V
DD33
GND
I
SENSEM1
65
GND
GND ASEL1 I
SENSEP0
T
SENSE1
GND GND REFP REFM
ASEL0
V
DD25
V
PWR
GND GND T
SENSE2
WDI/RESETB
PWRGD
FAULTB0 WP
SDA
SCL
V
DD25
H
J
PWRGD 17
SHARE_CLK 18
GND 19
GND 20
GND 21
CONTROL2 22
CONTROL3 23
WDI/RESETB 24
FAULTB0 25
FAULTB1 26
T
SENSE2
27
WP 28
SDA 29
SCL 30
ALERTB 31
CONTROL0 32
CONTROL3
FAULTB1
SHARE_CLK
ALERTB
UP PACKAGE
64-LEAD (9mm
×
9mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JCtop
= 7°C/W,
θ
JCbottom
= 1°C/W
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
BGA PACKAGE
63-PIN (7.5mm
×
6.25mm
×
1.52mm)
T
JMAX
= 125°C,
θ
JA
= 45°C/W,
θ
JCtop
= 25°C/W,
θ
JCbottom
= 21°C/W,
θ
JB
= 23°C/W
WEIGHT = 0.14g, VALUES DETERMINED PER JEDEC 51-9, 51-12
Rev. B
4
For more information
www.analog.com
LTC2975
ORDER INFORMATION
LEAD FREE FINISH
LTC2975CUP#PBF
LTC2975IUP#PBF
TAPE AND REEL
LTC2975CUP#TRPBF
LTC2975IUP#TRPBF
PART MARKING*
LTC2975UP
LTC2975UP
PACKAGE DESCRIPTION
64-Lead (9mm × 9mm) Plastic QFN
64-Lead (9mm × 9mm) Plastic QFN
JUNCTION TEMPERATURE RANGE
0°C to 70°C
–40°C to 105°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
PART MARKING*
PART NUMBER
LTC2975CY#PBF
LTC2975IY#PBF
PAD OR BALL FINISH
SAC305 (RoHS)
DEVICE
LTC2975Y
LTC2975Y
FINISH CODE
e1
PACKAGE
TYPE
BGA
MSL
RATING
3
TEMPERATURE RANGE
(SEE NOTE 2)
0°C to 70°C
–40°C to 105°C
• Contact the factory for parts specified with wider operating temperature
ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609.
•
Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures
•
LGA and BGA Package and Tray Drawings
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
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