3439EFE View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
3439EFE Datasheet PDF : 12 Pages
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LT3439
ABSOLUTE AXI U RATI GS
(Note 1)
VIN Voltage ............................................................. 20V
COL A, COL B Voltage ............................................. 35V
SHDN, SYNC Voltage .............................................. 20V
Maximum Junction Temperature ......................... 150°C
Operating Junction Temperature Range
(Note 2) ............................................ – 40°C to 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
PGND 1
NC 2
COL A 3
RSL 4
SYNC 5
CT 6
RT 7
NC 8
TOP VIEW
16 PGND
15 NC
14 COL B
13 VIN
12 NC
11 SHDN
10 GND
9 NC
ORDER PART
NUMBER
LT3439EFE
FE PART
MARKING
FE PACKAGE
16-LEAD PLASTIC TSSOP
TJMAX = 125°C, θJA = 40°C/ W
NOTE: BACKSIDE OF PACKAGE CONNECTED TO GND
3439EFE
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VIN = 5V; RT = 16.9k; CT = 680pF; RSL = 16.9k; COL A, COL B, SHDN pins open, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
Supply and Shutdown
VIN
Operating Range
VIN(MIN)
Minimum Input Voltage
IVIN
Supply Current
IVIN(SHDN)
Supply Current in Shutdown Mode
VSHDN(ON)
Shutdown Turn-On Threshold
VSHDN(OFF)
Shutdown Turn-Off Threshold
ISHDN
Shutdown Pin Current Hysteresis
Oscillator and Sync
2.8V ≤ VIN ≤ 17.5V
2.8V ≤ VIN ≤ 17.5V, VSHDN = 0V
2.8V ≤ VIN ≤ 17.5V
2.8V ≤ VIN ≤ 17.5V
2.8V ≤ VIN ≤ 17.5V, VSHDN = 1.4V
q 2.8
17.5
2.55 2.7
q
12
5
20
q
1.3 1.4
q 1.20 1.26
q 10 20 40
fMAX
Oscillator Frequency
fSYNC
Synchronization Frequency Range
VSYNC
SYNC Pin Threshold
RSYNC
SYNC Pin Input Resistance
Output Switches (COL A, COL B)
q
250
q
300
q
1.4 2.25
40
DC
Switch Duty Cycle
q
50
BV
RON
ILIM(MAX)
Slew Control
Output Switch Breakdown Voltage
Output Switch On Resistance
Switch Current Limit
2.8V ≤ VIN ≤ 17.5V
ICOLA or ICOLB = 0.75A
q 35 50
q
0.5 0.95
1.2 1.4 1.65
VSLEWR
Output Voltage Slew Rising Edge
Collector A or B
17
VSLEWF
Output Voltage Slew Falling Edge
Collector A or B
17
ISLEWR
Output Current Slew Rising Edge
Collector A or B
5
ISLEWF
Output Current Slew Falling Edge
Collector A or B
5
UNITS
V
V
mA
µA
V
V
µA
kHz
kHz
V
kΩ
%
V
Ω
A
V/µs
V/µs
A/µs
A/µs
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3439E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls.
sn3439 3439fs
2
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