Datasheet
LTC2974
4
2974fc
For more information www.linear.com/LTC2974
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Supply Voltages:
V
PWR
to GND ......................................... –0.3V to 15V
V
DD33
to GND ....................................... –0.3V to 3.6V
V
DD25
to GND ..................................... –0.3V to 2.75V
Digital Input/Output Voltages:
ALERTB, SDA, SCL, CONTROL0, CONTROL1,
CO
NTR
OL2, CONTROL3 to GND ........... –0.3V to 3.6V
PWRGD, SHARE_CLK, WDI/RESETB, WP,
FAULTB0, FAULTB1 to GND
................. –0.3V to 3.6 V
ASEL0, ASEL1 to GND
.......................... –0.3V to 3.6V
Analog Voltages:
REFP
................................................... –0.3V to 1.35V
REFM to GND
........................................ –0.3V to 0.3V
V
IN_SNS
to GND...................................... –0.3V to 15V
V
SENSEP[3:0]
to GND ................................. –0.3V to 6V
V
SENSEM[3:0]
to GND ................................ –0.3V to 6V
I
SENSEP[3:0]
to GND .................................. –0.3V to 6V
I
SENSEM[3:0]
to GND ................................. –0.3V to 6V
V
OUT_EN[3:0]
, AUXFAULTB to GND .......... –0.3V to 15V
V
DAC[3:0]
to GND ...................................... –0.3V to 6V
T
SENSE[3:0]
to GND ................................ –0.3V to 3.6V
Operating Junction Temperature Range:
LTC2974C
................................................ 0°C to 70°C
LTC2974I
..............................................–40°C to 85°C
Storage Temperature Range .................. –65°C to 125°C
Maximum Junction Temperature ........................ 125°C*
*See OPERATION section for detailed EEPROM de-
rating information for junction temperatures in excess
of 85°C.
(Note 1)
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TOP VIEW
65
GND
UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
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
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
64 V
SENSEM1
63 V
SENSEP1
62 V
SENSEM2
61 V
SENSEP2
60 NC
59 NC
58 V
DAC3
57 V
DAC2
56 NC
55 NC
54 V
DAC1
53 V
DAC0
52 NC
51 NC
50 V
SENSEM3
49 V
SENSEP3
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
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
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2974CUP#PBF LTC2974CUP#TRPBF LTC2974UP
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2974IUP#PBF LTC2974IUP#TRPBF LTC2974UP
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/