Datasheet

LTC3860
2
3860fc
V
CC
Voltage .................................................. –0.3V to 6V
VINSNS Voltage ......................................... –0.3V to 30V
VSNSN Voltage ............................................ –0.3V to 2V
RUN Voltage ................................................ –0.3V to 6V
ISNS1P
, ISNS1N,
ISNS2P
, ISNS2N ...........................–0.3V to (V
CC
+ 0.1V)
All Other Voltages .........................–0.3V to (V
CC
+ 0.3V)
Operating Junction Temperature Range
(Note 3) .................................................. –40°C to 125°C
Storage Temperature Range ................... –65°C to 125°C
(Note 1)
32 31 30 29 28 27 26 25
9 10 11 12
TOP VIEW
33
SGND
UH PACKAGE
32-LEAD (5mm s 5mm) PLASTIC QFN
13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1V
CC
FB1
COMP1
VSNSOUT
VSNSN
VSNSP
COMP2
FB2
RUN1
I
LIM1
ISNS1P
ISNS1N
ISNS2N
ISNS2P
I
LIM2
RUN2
TRACK/SS1 VINSNS SGND SGND I
AVG
PGOOD1 PWMEN1 PWM1
TRACK/SS2
FREQ
CLKIN
CLKOUT
PHSMD
PGOOD2
PWMEN2
PWM2
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3860EUH#PBF LTC3860EUH#TRPBF 3860 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C
LTC3860IUH#PBF LTC3860IUH#TRPBF 3860 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
junction temperature range, otherwise specifi cations are at T
A
= 25°C (Note 3). V
CC
= 5V, V
RUN1,2
= 5V, V
FREQ
= V
CLKIN
= 0V, V
FB
= 0.6V,
f
OSC
= 0.6MHz unless otherwise specifi ed.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Input Voltage Range
l
3.0 5.5 V
V
IN
V
IN
Range V
CC
= 5V
l
324V
I
Q
Input Voltage Supply Current
Normal Operation
Shutdown Mode
UVLO
V
RUN1,2
= 5V
V
RUN1,2
= 0V
V
CC
< V
UVLO
14
3.5
50
mA
μA
mA
V
RUN
RUN Input Threshold V
RUN
Rising
V
RUN
Hysteresis
1.95 2.25
250
2.45 V
mV
I
RUN
RUN Input Pull-Up Current V
RUN1,2
= 2.4V 1.5 μA
V
UVLO
Undervoltage Lockout Threshold V
CC
Rising
V
CC
Hysteresis
l
100
3.0 V
mV