UC3845BD ON Semiconductor, UC3845BD Datasheet - Page 18
![IC CTRLR CURRENT MODE HP 14SOIC](/photos/6/57/65767/14-soic_751a_sml.jpg)
UC3845BD
Manufacturer Part Number
UC3845BD
Description
IC CTRLR CURRENT MODE HP 14SOIC
Manufacturer
ON Semiconductor
Datasheet
1.UC3844BDR2G.pdf
(19 pages)
Specifications of UC3845BD
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
275kHz
Duty Cycle
50%
Voltage - Supply
8.2 V ~ 25 V
Buck
No
Boost
Yes
Flyback
Yes
Inverting
Yes
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)
48 %
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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
UC3845BDOS
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UC3845BD1
Manufacturer:
ST
Quantity:
18 420
Company:
Part Number:
UC3845BD1013TR
Manufacturer:
STM
Quantity:
12 500
Part Number:
UC3845BD1013TR
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
UC3845BD1G
Manufacturer:
ON Semiconductor
Quantity:
2 000
Part Number:
UC3845BD1R2G
Manufacturer:
ON/安森美
Quantity:
20 000
SEATING
PLANE
−T−
14
1
G
−A−
D
14 PL
0.25 (0.010)
M
8
7
−B−
0.58
T
14X
K
B
S
C
P
7 PL
A
S
SOLDERING FOOTPRINT
0.25 (0.010)
R
http://onsemi.com
1
X 45
CASE 751A−03
_
M
SOIC−14
ISSUE H
M
7.04
7X
B
18
M
DIMENSIONS: MILLIMETERS
J
1.52
14X
F
1.27
PITCH
NOTES:
1. DIMENSIONING AND TOLERANCING PER
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
5. DIMENSION D DOES NOT INCLUDE
ANSI Y14.5M, 1982.
MOLD PROTRUSION.
PER SIDE.
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.127
(0.005) TOTAL IN EXCESS OF THE D
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
DIM
G
M
A
B
C
D
F
J
K
P
R
MILLIMETERS
MIN
8.55
3.80
1.35
0.35
0.40
0.19
0.10
5.80
0.25
1.27 BSC
0
_
MAX
8.75
4.00
1.75
0.49
1.25
0.25
0.25
6.20
0.50
7
_
0.337
0.150
0.054
0.014
0.016
0.008
0.004
0.228
0.010
MIN
0.050 BSC
0
INCHES
_
0.344
0.157
0.068
0.019
0.049
0.009
0.009
0.244
0.019
MAX
7
_