res lvm

LVM Series
Current Sensing Metal Chip Resistor
A p p l i c at i o n s
F ea t u res
•Power Management Applications
•Switching Power Supply
•Over Current Protection in Audio
Applications
•Voltage Regulation Module (VRM)
•DC-DC Converter, Battery Pack,
Charger, Adaptor
•SMD Type designed for automatic insertion
•High overload rating in small size (5 times rated wattage for 5 seconds)
•Metal foil construction ensures high reliability and performance
with very low TCR values
•Designed for current sense circuits in power electronic systems
•Pb-Free to meet RoHS requirements
S E R I E S S P E CI F IC A TION S
Power Resistance
Series Rating
Range*
LVM06 0.125W 10m-19m
20m- 100m
LVM12
0.5W
10m-19m
20m- 100m
LVM25
1.0W
7m-100m
15m- 100m
c h ara c t er i s t i c s
Rated Cont. √(P*R) or Max. Operating
Working Volts voltage whichever is
lower
Derating 100% @ 70°C, Derates
Linearly to Zero @ 155°C
(170°C for LVM25)
Operating -55°C ~ +155°C
temp. range (LVM25, -55°C ~ +170°C)
Storage 25° ±3°C C; Humidity
Temperature < 80%RH
Derating
Percent Rated Power
100
80
60
Perf o rma n c e d a t a
Item Requiremen
Test Method
TCR As Spec.
JIS-C-5201-1 4.8, IEC-60115-1 4.8,
-55°C~+125°C, 25°C is the reference temperature
Short Time ±(0.5%+0.05Ω)
Overload
JIS-C-5201-1 4.13, IEC-60115-1 4.13, 5 X Rated
Power for 5 seconds
Insulation ≥10G
Resistance (100M for LVM25)
JIS-C-5201-1 4.6, IEC-60115-1 4.6, Max. Overload
voltage for 1 minute
Endurance ±(1.0%+0.05Ω)
JIS-C-5201-1 4.25, IEC-60115-1 4.25.1, 70±2°C,
RCWV for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs
“OFF”
Damp Heat ±(1.0%+0.05Ω)
with Load (LVM06 & 12 only)
JIS-C-5201-1 4.24, 40±2°C, 90~95% R.H., RCWV
for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF”
Dry Heat ±(0.5%+0.05Ω)
(1% for LVM25)
JIS-C-5201-1 4.23, IEC-60115-1 2.23.2, at +155°C
for 1000 hrs
Bending ±(1.0%+0.05Ω)
Strength
JIS-C-5201-1 4.33, IEC-60115-1 4.33, Bending
once for 5 seconds with 3mm, 2010, 2512 sizes:
2mm
Solderability 95% min. coverage
JIS-C-5201-1 4.17, IEC-60115-1 4.17, 245±5°C
for 3 seconds
Resistance ±(0.5%+0.05Ω)
to Soldering (LVM06 & 12 only)
Heat
JIS-C-5201-1 4.18, IEC-60115-1 4.18, 260±5°C
for 10 seconds
LVM25
40
LVM06
LVM12
20
0
TCR
ppm/°C
Tolerance
100 ±1% ±2% ±5%
50, 100
100 ±1% ±2% ±5%
50, 100
75 ±0.5% ±1% ±5%
50
0
20 40 60 80 100 120 140 160 180
Ambient Temperature, °C
Voltage Proof No breakdown or
flashover
(LVM06 & 12 only)
Leaching Individual leaching area ≤5%, Total
leaching area ≤10%
(LVM06 & 12 only)
Rapid Change ±(0.5%+0.05Ω)
of Temp. 1% for LVM25
10
JIS-C-5201-1 4.7, IEC-60115-1 4.7, 1.42 times
Max. Operating Voltage for 1 minute
JIS-C-5201-1 4.18, IEC-60068-2-58 8.2.1,
260±5°C for 30 seconds
JIS-C-5201-1 4.18, IEC-60115-1 4.18, -55°C to
+155°C, 5 cycles
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
LVM Series
Current Sensing Metal Chip Resistor
c h ara c t er i s t i c s
Soldering condition
IR Reflow Soldering
Temp. (°C)
Wave Soldering (Flow Soldering)
Temp. (°C)
265°
Peak: 265°C
260°C / 10 sec.
260°C / 10 sec.
235°
245°
Heat-up rate ~ 3K/sec.
220°
Cooling rate
~ 6K/sec.
180°
First wave
150°
150°
Max.
20 sec.
Pre-heating
90 ~ 120 sec.
~5K/sec.
~200K/sec.
Typical values
Process limits
~2K/sec.
100°
Max.
60 sec.
Number of reflow cycles allowed: 3
LVM06 and LVM12 only
Second wave
~2K/sec.
Time (sec.)
Number of reflow cycles allowed: 2
Time (sec.)
(1) Time of IR reflow soldering at maximum temperature point 260°C, 10 sec.
(2) Time of wave soldering at maximum temperature point 260°C, 10 sec.
(3) Time of soldering iron at maximum temperature point 410°C, 5 sec.
d i me n s i o n s
(mm)
Series
L
Size Res. mΩ
L
W
T
A
Land Pattern
B
W
LVM06 0603 10-29 1.55 ±.10 0.85 ±.10 0.40 ±.10 0.30 ±.15 0.45 ±.15
30-100 1.55 ±.10 0.85 ±.10 0.40 ±.10 0.30 ±.15 0.35 ±.15
LVM12 1206 10-29 3.05 ±.15 1.55 ±.15 0.58 ±.15 0.50 ±.25 0.90 ±.25
30-100 3.05 ±.15 1.55 ±.15 0.55 ±.15 0.50 ±.25 0.60 ±.25
A
B
C
B
0.40 1.20 0.9
0.70 1.05 0.9
0.9 1.70 1.70
1.50 1.40 1.70
A
LVM25 2512 7-100 6.40 ±.25 3.20 ±.25 0.70 ±.20 0.90 ±.30 0.90 ±.30
T
A
C
4.00 2.00 3.50
B
R eel s p e c i f i c a t i o n s
(mm)
Reel
Tape
Paper
tape
Top
tape
Series
Embossed
tape
Top
tape
D0
P1
P0
T0
F
T0
Series
P2
Direction of feed
LVM25
A
B
W0
E
A
F
øB
øC
W
T
Qty.
LVM12 178.0±1.0 60.0+1.0 13.5±0.7 9.5±0.1 11.5±1.0 5,000
E
B
LVM06
LVM12
øA
LVM06 178.0±1.0 60.0+1.0 13.5±0.7 9.5±0.1 11.5±1.0 5,000
LVM25 178.0±1.5 60.0+1.0 13.0±0.5 13.0-±1.0 15.5±0.5 4,000
W0
øA
ø1.4mm min.
(plastic tape only)
P0
P1
P2
øD0
T0
øB
LVM06 1.10±0.10 1.90±0.10 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.70±0.10
LVM12 1.90±0.10 3.50±0.20 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.10
LVM25 3.50±0.10 6.70±0.10 12.0±0.30 1.75±0.10 5.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.50+0.1,-0 1.20 max.
øC
W
Or d er i n g i n f o rma t i o n
Not all TCR’s available in all resistance values. Please see characteristics chart above.
TCR
Z= 75ppm
V= 50ppm
T= 100ppm
Standard Part Numbers
RoHS Compliant
LVM06FTR050E-TR
Series
Case Size
06 = 0603
12 = 1206
25 = 2512
Tolerance
D = 0.5%
F = 1%
G = 2%
J = 5%
Ohms
R030 = 0.030
R100 = 0.100
Packaging
TR=Tape and reel
LVM06FTR010E-TR
LVM06FTR015E-TR
LVM06FTR025E-TR
LVM06FTR050E-TR
LVM06FTR100E-TR
LVM12FTR010E-TR
LVM12FTR015E-TR
LVM12FTR025E-TR
LVM12FTR050E-TR
LVM12FTR100E-TR
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
11
LVM25FZR010E-TR
LVM25FVR015E-TR
LVM25FVR020E-TR
LVM25FVR025E-TR
LVM25FVR030E-TR
LVM25FVR050E-TR
LVM25FVR100E-TR
T