R-611.8P Datasheet, PDF (2/4 Pages) Recom International Power – INNOLINE DC/DC-Converter

INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C)
Characteristics
Vo Ripple & Noise
Transient Response (see note 1)
Remote ON / OFF (see note 2)
(positive logic)
Remote Off Input Current
Switching Frequency
Quiescent Current
Operating Temperature Range
Storage Temperature Range
Internal Power Dissipation
Conditions
R-61xxP/D
R-62xxP/D
50% Load Change
Vout Over / Undershoot
Open or high (Power ON)
Low (Power OFF)
Remote ON/OFF low level
Vin = min. to max. at 0% load
Io x Vo x (1-Efficiency)
R-6xxxP_D
Series
Min.
2.0V
200kHz
-40°C
-40°C
Typ.
40mVpp
40mVpp
100us
5%
100µA
250kHz
6mA
Max.
100mVpp
120mVpp
200us
10V
0.8V
300kHz
10mA
+85°C
+125°C
1.0W
Notes:
1. Requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor to be placed as close as possible to the output pins).
2. ON / OFF pin can be driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET.
3. Output Current vs. Input Voltage (see graph below).
Standard Application Circuit
Vin
OFF _1µF
ON ^(Optional)
TTL
2, 3, 4
C1 ₁
Q1
R-61XX
R-62XX
5, 6, 7,8
Com
9, 10, 11
R1
(Adjust down)
12
R2
(Adjust up)
Vout
C2
100µF/10V
(REQ`D)
Com
Output Current vs Input Voltage
2
R-62XX
1.2A
1
R-61XX
0
9.0
14
Input Voltage (V)
24 28 32
90
85
80
60
40
20
0
0.5 0.7 1
1.5
Internal Power Dissipation (W)
Max output current calculation:
Internal power dissipation
(1W) = Io x Vo x (1-Efficiency)
Io = 1(W) / Vo x (1-Efficiency)
Example : R-6212P
at Vin = 28VDC
Efficiency = 94% (see ”Selection Guide” table)
Vo = 12VDC
Io = 1W / 12V x (1-0.94) = 1.388A = 1.5A
at Vin = 14VDC
Efficiency = 96% (see ”Selection Guide” table)
Vo = 12Vdc
Io = 1W / 12V x (1-0.96) = 2.08A (spec. = 2A max.)
www.recom-international.com
24-August-2005
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