UC3843BD ON Semiconductor, UC3843BD Datasheet - Page 20

• Manufacturer Part Number: UC3843BD
• Description: IC CTRLR CURRENT MODE HP 14SOIC
• Manufacturer: ON Semiconductor

Specifications of UC3843BD

• 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: 14-SOIC (3.9mm Width), 14-SOL
• 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: UC3843BDOS

−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
_