Powersolve ASBC User Manual

High Density DC-DC Modules

ASBC Series

www.powersolve.co.uk

180-300 Watt
Bus Converters

Features

• Quarter brick package

• Efficiency to 95%

• Input under voltage protection

• Over current protection

• Over temperature protection

• Remote On/Off control

• 2250VDC isolation

Electrical Specification

INPUT

Input Voltage Range 42 ~ 53V (ASBC300)

Undervoltage Lockout 40V (ASBC300 power up)

Over voltage lockout (ASBC300) 57V (ASBC300 turn-off threshold)
Positive Logic Remote ON/OFF Open collector ref. to -Input, Module ON: open circuit, Module OFF: <0.8VDC

Input Filter PI Type

36 ~ 75V (ASBC180)

38.5V (ASBC300 power down)
34V (ASBC180 power up)

32.5V (ASBC180 power down)

Add suffix N to Model Number for Negative Logic Remote ON/OFF control

OUTPUT

Voltage Accuracy ±1.0% max. measured at 48Vin and no load
Transient Response <200µsec for a 25% step load change
Ripple & Noise, 20MHz BW 60mV rms, 120mV pk-pk max.

ENVIRONMENTAL

Temperature coefficient ±0.03%/°C max.
Short Circuit Protection Continuous
Line Regulation ±13.0% max (ASBC300) measured over full input voltage range

Load Regulation ±6.0% max. measured at 48Vin from 0-100% load
Over Voltage Protection trip range 120% ~ 140% of Vo nominal (ASBC180)
Current Limit 110% ~ 140% Nominal Output

GENERAL

Efficiency See table
Isolation Voltage 2250VDC min
Isolation Resistance 107ohms min.
Switching Frequency 300KHz typ. (ASBC300)

Over temperature protection 120°C typ.
Operating ambient temperature range -40°C to +85°C
Storage temperature range -40°C to +125°C
Dimensions: Standard model 2.28 x 1.45 x 0.40 inches

Suffix ‘H’ model 2.28 x 1.45 x 0.50 inches

Weight 42g

measured with a 10µF tantalum & 1.0µF ceramic capacitor across the output

±10.0% max. (ASBC180) measured over full input voltage range

340KHz typ. (ASBC180)

57.9 x 36.8 x 10.2 mm

57.9 x 36.8 x 12.7 mm

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: [phone] Fax: [phone] Email: [e-mail]

High Density DC-DC Modules

www.powersolve.co.uk

Output Voltage and Current Ratings

MODEL INPUT OUTPUT OUTPUT INPUT CURRENT % EFF.

ASBC300-48S12 42.0 - 53.0VDC 12VDC 0 - 25A 100mA 6578mA 95
ASBC180-48S12 36.0 - 75.0VDC 12VDC 0 - 15A 70mA 3947mA 95

NOTE: Nominal Input Voltage 48VDC

Mechanical and Connection Details

VOLTAGE VOLTAGE CURRENT NO LOAD FULL LOAD

Pin Connection

Pin Function

1 +Vin
2 ON/OFF
3 -Vin
4 -Vout
5 +Vout

All dimensions in inches (mm)
Tolerances:
Inches x.xx ±0.02

x.xxx ±0.010

Millimeters x.x ±0.5

x.xx ±0.25

Remote ON/OFF Control

The ASBC Series allows the user to switch the module on and off electronically with the remote on/off feature.
The ASBC Series are available with “positive logic” or “negative logic” (option).

Logic Table

Logic State

(Pin 2)

Logic low-

Switch closed

Logic high-

Switch open

Negative

Logic

Module on Module off

Module off Module on

Derating Curves Output Noise

The output noise is measured with a 10µF tantalum and a 1.0µF
ceramic capacitor across the output.

+Vout

-Vout

Positive

Logic

All specifications typical at nominal line, full load and 25°C
unless otherwise stated.

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: [phone] Fax: [phone] Email: [e-mail]