UC3843BD1 ON Semiconductor, UC3843BD1 Datasheet - Page 20
UC3843BD1
Manufacturer Part Number
UC3843BD1
Description
IC CTRLR CURRENT MODE HP 8SOIC
Manufacturer
ON Semiconductor
Datasheet
1.UC3842BDR2G.pdf
(21 pages)
Specifications of UC3843BD1
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
275kHz
Duty Cycle
96%
Voltage - Supply
8.2 V ~ 25 V
Buck
No
Boost
Yes
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
0°C ~ 70°C
Package / Case
8-SOIC (3.9mm Width)
Frequency-max
275kHz
Duty Cycle (max)
96 %
Output Voltage
4.9 V to 5.1 V
Output Current
1000 mA
Mounting Style
SMD/SMT
Switching Frequency
500 KHz
Operating Supply Voltage
30 V
Maximum Operating Temperature
+ 70 C
Fall Time
50 ns
Minimum Operating Temperature
0 C
Rise Time
50 ns
Synchronous Pin
No
Topology
Boost, Flyback, Forward
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
UC3843BD1OS
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−Z−
−Y−
B
H
−X−
8
1
0.25 (0.010)
G
A
D
4
5
M
Z
S
Y
S
C
*For additional information on our Pb−Free strategy and soldering
0.25 (0.010)
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
X
SEATING
PLANE
S
0.10 (0.004)
0.024
0.6
M
PACKAGE DIMENSIONS
0.275
7.0
Y
SOLDERING FOOTPRINT*
http://onsemi.com
M
N
CASE 751−07
X 45
D1 SUFFIX
ISSUE AJ
SOIC−8
_
M
20
K
SCALE 6:1
0.060
0.155
1.52
J
4.0
1.270
0.050
inches
mm
NOTES:
1. DIMENSIONING AND TOLERANCING PER
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
5. DIMENSION D DOES NOT INCLUDE DAMBAR
6. 751−01 THRU 751−06 ARE OBSOLETE. NEW
ANSI Y14.5M, 1982.
MOLD PROTRUSION.
PER SIDE.
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
STANDARD IS 751−07.
DIM
A
B
C
D
G
H
K
M
N
S
J
MILLIMETERS
MIN
4.80
3.80
1.35
0.33
0.10
0.19
0.40
0.25
5.80
0
1.27 BSC
_
MAX
5.00
4.00
1.75
0.51
0.25
0.25
1.27
0.50
6.20
8
_
0.189
0.150
0.053
0.013
0.004
0.007
0.016
0.010
0.228
MIN
0
0.050 BSC
INCHES
_
0.197
0.157
0.069
0.020
0.010
0.010
0.050
0.020
0.244
MAX
8
_