Recom R-78B1.8-1.0 Handleiding

Bekijk gratis de handleiding van Recom R-78B1.8-1.0 (7 pagina’s), behorend tot de categorie Audio/video-converter. Deze gids werd als nuttig beoordeeld door 12 mensen en kreeg gemiddeld 4.5 sterren uit 4 reviews. Heb je een vraag over Recom R-78B1.8-1.0 of wil je andere gebruikers van dit product iets vragen? Stel een vraag

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REV.: 4/2019I-1

Features

Switching

Regulator

• Efficiency up to 97%, no heatsinks required

• Pin compatible with LM78XX linears

• Low profile (L/W/H=11.5 x 8.5 x 17.5mm)

• Wide input range

• Short circuit protection, thermal shutdown

• Low ripple and noise

• „L“ version with 90° pins

• Positive to negative converter

R-78B-1.0(L)

Description

The R-78Bxx-1.0 series high efficiency switching regulators are ideally suited to replace 78xx

linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is

wasted as heat so there is no need for any heat sinks with their additional space and mounting costs.

The L-Version with 90° pins allows direct replacement for laid-flat regulators where component height

is at a premium. Low ripple and noise figures and a short circuit input current of typically only 10mA

round off the specifications of this versatile converter series.

DC/DC Converter

1.0 Amp

SIP3

Single Output

EN55032 compliant

IEC/EN60950-1 certified

BASIC CHARACTERISTICS

ParameterConditionMin.Max.Typ.

Absolute Maximum Input

Voltage

1.5Vout , 1.8Vout

2.5Vout to 15Vout

26VDC

34VDC

Quiescent Currentnom. Vin= 24VDC5mA7mA

Internal Power DissipationVout= 1.5VDC0.65W

Internal Operating Frequency

nom. Vin= 24VDC280kHz330kHz380kHz

Minimum Load

(2)

0%

Output Ripple and Noise

(3)

20MHz BW

1.5Vout to 6.5Vout

9Vout to 15Vout

15mVp-p

25mVp-p

20mVp-p

35mVp-p

Ref. Back Ripple Current150mA

200mAp-p

Absolute Maximum

Capacitive Load

1 second start up, no external components

<1 second start up + diode protection circuit

470µF

6800µF

continued on next page

Selection Guide

Part Input Output Output Efficiency

Number Voltage Range Voltage Current @ min Vin @ max. Vin

[VDC] [VDC] [A] [%] [%]

R-78B1.5-1.0

(1)

4.75 - 26 1.5 1.0 77 71

R-78B1.8-1.0

(1)

4.75 - 26 1.8 1.0 80 74

R-78B2.5-1.0

(1)

4.75- 32 2.5 1.0 85 78

R-78B3.3-1.0

(1)

4.75- 323.3 1.0 89 83

R-78B5.0-1.0

(1)

6.5- 325.0 1.0 93 88

R-78B6.5-1.0

(1)

9.0- 326.5 1.0 94 90

R-78B9.0-1.0

(1)

12- 329.0 1.0 95 93

R-78B12-1.0

(1)

16- 3212 1.0 96 95

R-78B15-1.0

(1)

20- 3215 1.0 97 96

Notes:

Note1: add suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L

Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)

Notes:

Note2: Operation under no load will not harm the converter, but specifications may not be met

A minimum load of 10mA is recommended

Note3: Output Ripple and Noise is tested from 10% to 100% load

Model Numbering

Output VoltagePinning

Output Current

R-78B__-1.0(L)

Product specificaties