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CS51021A Datasheet(PDF) 2 Page - ON Semiconductor

Part No. CS51021A
Description  Enhanced Current Mode PWM Controller
Download  11 Pages
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CS51021A Datasheet(HTML) 2 Page - ON Semiconductor

  CS51021A Datasheet HTML 1Page - ON Semiconductor CS51021A Datasheet HTML 2Page - ON Semiconductor CS51021A Datasheet HTML 3Page - ON Semiconductor CS51021A Datasheet HTML 4Page - ON Semiconductor CS51021A Datasheet HTML 5Page - ON Semiconductor CS51021A Datasheet HTML 6Page - ON Semiconductor CS51021A Datasheet HTML 7Page - ON Semiconductor CS51021A Datasheet HTML 8Page - ON Semiconductor CS51021A Datasheet HTML 9Page - ON Semiconductor Next Button
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CS51021A, CS51022A, CS51023A, CS51024A
http://onsemi.com
2
VC
VREF
COMP
VFB
RTCT
SYNC/
CSS
VCC
UV
OV
ISET
SLOPE
GATE
ISENSE
PGND
LGND
SLEEP
22 k
4700 pF
51 k
10 k
0.01
mF
24.3 k,
1.0%
200 k,
1.0%
2.49 k,
1.0%
BA521
IRF6345
6.98 k,
1.0%
6.98 k,
1.0%
470 pF
100 p
100
10 k
62
680 pF
100
mF 100 mF
VOUT
SGND
(5 V/5 A)
10
FZT688
SYNC/SLEEP
22
mF
18 V
BAS21
51 k
11 V
(36 V to 72 V)
PGND
0.01
mF
1.0
mF
100
100:1
4:1
2:5
10
VIN
MOC81025
TL431
1000 pF
5.1 k
0.1
mF
2.0 k, 1.0%
2.0 k,
1.0%
1.0 k
180
1.0 K
10 K
330 pF
Figure 1. Typical Application Diagram, 36−72 V to 5.0 V, 5.0 A DC−DC Converter
MAXIMUM RATINGS*
Rating
Value
Unit
Power Supply Voltage, VCC
−0.3, 20
V
Driver Supply Voltage, VC
−0.3, 20
V
SYNC, SLEEP, RTCT, SOFT−START, VFB, SLOPE, ISENSE, UV, OV, ISET (Logic Pins)
0.25 to VREF
V
Peak GATE Output Current
1.0
A
Steady State Output Current
±0.2
A
Operating Junction Temperature, TJ
150
°C
Storage Temperature Range, TS
−65 to +150
°C
ESD (Human Body Model)
2.0
kV
Lead Temperature Soldering:
Reflow: (SMD styles only) (Note 1)
230 peak
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
*The maximum package power dissipation must be observed.
1. 60 second maximum above 183
°C.


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