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ELM650DA Datasheet(PDF) 4 Page - ELM Electronics

Part # ELM650DA
Description  CC/CV Mode 36V step down 2A DC/DC converter
Download  10 Pages
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Manufacturer  ELM [ELM Electronics]
Direct Link  http://www.elmelectronics.com
Logo ELM - ELM Electronics

ELM650DA Datasheet(HTML) 4 Page - ELM Electronics

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4
Rev.1.2
10 -
Parameter
Symbol
Condition
Min.
Typ.
Max. Unit
Input voltage section
Input voltage
Vin
8
36
V
Input no load current
Ino-load Iout=0A
10
mA
Oscillator section
Operating frequency
Fosc
90
110
kHz
Duty cycle range
Duty
95
%
Error amplifier section
Reference voltage of
the voltage error amplifier
Vvsen
1.168 1.180 1.192
V
Reference voltage of
the current error amplifier
Visen
107.5 112.0 116.5 mV
Tran conductance of
error amplifier
Gmerr
150
µA/V
Output over voltage protection section
Reference voltage of
the over voltage comparator
Vovp
1.145 1.180 1.215
V
Output short circuit protection section
Reference voltage of the
short circuit fold back comparator
Vscp
0.4
V
MOSFET section
Drain-source breakdown voltage
V(br)dss Vgs=0V, Iout=250µA
-40
V
Drain-source on-state resistance
Rds (on) Vin=24V, Iout=1A
200
■Electrical characteristics
Vin=12V, Iout=1.0A, Top=25°C, unless otherwise specified
ELM650DA CC/CV Mode 36V step down 2A DC/DC converter
■Application circuits
ELM650DA
COMP
GND
VCC
OVP
LX
ISEN+
ISEN-
VSEN
R5
R6
R9
L2
1
2
8
3
7
4
6
5
U1
L4
R2
C6
D1
R3
R4
C7
+
C8
R7
R10
R8
LED
Vout+
Vout-
L3
R1
C10 C4 C5
+
C2
C3
C1
GND
Vin
C9
+
L1
1
2
3
4


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