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UC1856-SP Scheda tecnica(PDF) 4 Page - Texas Instruments

Il numero della parte UC1856-SP
Spiegazioni elettronici  UC1856-SP Improved Current-Mode PWM Controller
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Homepage  http://www.ti.com
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UC1856-SP Scheda tecnica(HTML) 4 Page - Texas Instruments

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UC1856-SP
SLUSBV6 – APRIL 2014
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
(1) (2)
MIN
MAX
UNIT
Supply voltage
40
V
Collector supply voltage
40
V
Current sense inputs
–0.3
3
V
Error amplifier inputs
–0.3
VIN
V
Shutdown input
–0.3
10
V
Error-amplifier output current
–5
mA
DC
0.5
Output current,
A
source or sink
Pulse (0.5 µs)
2
Oscillator Charging current
5
mA
Soft-start sink current
50
mA
SYNC output current
±10
mA
Junction temperature
–55
150
°C
Lead temperature (Soldering, 10 sec.)
300
°C
(1)
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
All voltages are with respect to Ground. Currents are positive into, negative out of the specified pin. Consult packaging section of
databook for thermal/imitations and considerations of package.
6.2 Handling Ratings
MIN
MAX
UNIT
Tstg
Storage temperature range
-65
150
°C
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
TJ
Operating junction temperature
-55
125
°C
6.4 Thermal Information
(1)
UC1856-SP
THERMAL METRIC(2)
UNIT
16 PIN
RθJC(bottom)
J package
7.3
°C/W
HKT package
2.9
(1)
HKT: Computational fluid dynamics (CFD) model of 16 pin HKT package to Mil Std 883 Method 1012.1 standard. 16/J: Curve based on
CFD models correlated to available physical measurement data points. Reference: http://www.sh.sc.ti.com/process-
packaging/pkgchar/Tjc_by_die_size.htm
(2)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
4
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Product Folder Links: UC1856-SP


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