The UC1842/3/4/5 family of control devices provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode control schemes with a minimal external parts count

UC2845

Manufacturer Part NumberUC2845
DescriptionThe UC1842/3/4/5 family of control devices provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode control schemes with a minimal external parts count
ManufacturerTexas Instruments
UC2845 datasheet
 


Specifications of UC2845

TopologyBoost, Flyback, ForwardControl MethodCurrent
Duty Cycle(max)(%)50Frequency(max)(khz)450
Uvlo Thresholds On/off(v)8.4/7.6Pin/package14SOIC, 8PDIP, 8SOIC
Vin(min)(v)7.6Vin(max)(v)30
Regulated Outputs(#)1Operating Temperature Range(c)-40 to 85
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TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package
Package
Type
Drawing
UC2842D8TR
SOIC
D
UC2842DTR
SOIC
D
UC2843D8TR
SOIC
D
UC2843DTR
SOIC
D
UC2844D8TR
SOIC
D
UC2844DTR
SOIC
D
UC2845D8TR
SOIC
D
UC2845DTR
SOIC
D
UC3842D8TR
SOIC
D
UC3842DTR
SOIC
D
UC3843D8TR
SOIC
D
UC3843DTR
SOIC
D
UC3844D8TR
SOIC
D
UC3844DTR
SOIC
D
UC3845D8TR
SOIC
D
UC3845DTR
SOIC
D
PACKAGE MATERIALS INFORMATION
Pins
SPQ
Reel
Reel
A0 (mm)
Diameter
Width
(mm)
W1 (mm)
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
8
2500
330.0
12.4
6.4
14
2500
330.0
16.4
6.5
Pack Materials-Page 1
19-Mar-2008
B0 (mm)
K0 (mm)
P1
W
Pin1
(mm)
(mm)
Quadrant
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
5.2
2.1
8.0
12.0
9.0
2.1
8.0
16.0
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1