BEL SRBG

NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
SRBG-30A1A0 RoHS Compliant
PRELIMINARY
Rev.A
•
Non-Isolated
•
Input Under Voltage Lockout
•
Fixed Frequency
•
Over Temperature Shutdown
•
High Efficiency
•
Short Circuit Protection
•
Wide Trim
•
Remote On/Off
•
Low Cost
•
Industrial Temperature Range
•
Remote Sense
Description
The Bel SRBG-30A1A0 is part of the non-isolated dc/dc converter Power Module series. The modules use a SMT
package. These converters are available in a range of output voltages from 0.8 Vdc to 3.63 Vdc over a wide range
of input voltage (Vin = 8 Vdc - 14 Vdc).The efficiency is typically 92% at 12 Vdc input and 3.3 Vdc output at full
load.
Part Selection
Output Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
0.8 Vdc - 3.3 Vdc
8 Vdc - 14 Vdc
30 A
99 W
92%
SRBG-30A1A0
Notes: 1. Add “G” or “R” suffix at the end of the model number to indicate Tray or Tape and Reel packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
15 V
Output Enable Terminal Voltage
-0.3 V
-
15 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Input Specifications
Parameter
Input Voltage
Min
Typ
Max
8V
12 V
14 V
Input Current (full load)
-
-
15 A
Input Current (no load)
-
270 mA
400 mA
Remote Off Input Current
-
2 mA
-
Input Reflected Ripple Current (pk-pk)
-
20 mA
50 mA
Input Reflected Ripple Current (rms)
-
10 mA
30 mA
I t Inrush Current Transient
-
-
1As
Turn On Voltage Threshold
-
7.2 V
-
Turn Off Voltage Threshold
-
6.9 V
-
2
Notes
With a 1000 uF AL-Cap at the input.
2
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
Output Specifications
Parameter
Output Voltage Set Point
Min
-1.5%Vo, set
Typ
-
Max
1.5%Vo, set
Line Regulation
-
-
0.2%Vo, set
Load Regulation
-
-
1.5%Vo, set
Temperature Regulation
(-40 °C to +85 °C)
-
-
1%Vo, set
Ripple and Noise (rms)
-
20 mV
60 mV
Ripple and Noise (pk-pk)
-
60 mV
150 mV
0A
-
30 A
Output Current
2
0-20 MHz BW, with a 22 µF
ceramic capacitor and a
150 uF tantalum capacitor at
the output.
2
Short Circuit Surge Transient
-
1A s
3A s
Turn on Time
-
4 mS
20 mS
Overshoot at Turn On
-
-
5%
150 uF
-
10000 uF
Output Capacitance
Notes
Vin=12 V, IO=half load
Transient Response
50% ~ 75%
Max Load
75% ~ 50%
Max Load
Overshoot
-
90 mV
180 mV
Settling Time
-
25 uS
70 uS
-
90 mV
180 mV
-
25 uS
70 uS
Overshoot
Vo=3.3 V
Settling Time
di/dt=0.5 A/us, Vin=12 Vdc,
with a 22 uF ceramic
capacitor and a 150 uF
tantalum at the output.
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
Switching Frequency
77%
89%
-
80%
92%
600 kHz
-
Output Voltage Trim Range
0.8 V
-
3.63 V
Over Temperature Shutdown
-
130 °C
-
Remote Sense Compensation
-
-
0.5 V
Notes
Efficiency
Vo=0.8 V
Vo=3.3 V
MTBF
Vin=12 V, full load
Calculated Per Bell Core SR-332
(Vin=12 V, Vo=3.3 V, IO =80%load; Ta =
25 °C)
TBD
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
1.3 x 0.53 x 0.437
33.02 x 13.46 x 11.10
-
TBD
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
Control Specifications
Parameter
Min
Typ
Max
Notes
Signal Low (Unit Off)
-0.3 V
-
0.8 V
Signal High (Unit On)
2.8 V
-
Vin, max
Remote On/Off
Remote on/off pin open, unit on
Remote Enable Specifications
The SRBG-30A1A0 modules feature an enable
pin with Positive logic. If not using the enable
pin, leave the pin open (the module will be on).
During logic_high, the module is turned on,
during logic_low, the module is turned off. It
inner circuit impedance is showed as the figure.
Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: Ω). The Trim resistor should be connected
between the Trim pin and Ground pin.
Vout
R trim
⎤
⎡ 9680
= ⎢
− 715 ⎥
⎦
⎣ Vo − 0 . 8
Sense
Module
trim
Rtrim
GND
Vo is the desired output voltage
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
Efficiency Data
Module 0.8V
85.0%
80.0%
efficiency
75.0%
70.0%
8V
12.0V
14.0V
65.0%
60.0%
55.0%
50.0%
45.0%
3A
7.5A
15A
22.5A
30A
output current
Module 3.3V
95.0%
efficiency
90.0%
85.0%
8V
12.0V
80.0%
14.0V
75.0%
70.0%
3A
7.5A
15A
22.5A
30A
output current
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
Thermal Derating Curves
Vo=0.8 V
Vo=3.3 V
Ripple and Noise Waveforms
Vo=0.8 V
Vo=3.3 V
Note: Ripple and noise at full load, 12 V input, external load with 150 uF tantalum capacitor and 22 uF ceramic
capacitor at the output, Ta=25 deg C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
Transient Response Waveforms
Vo=0.8 V 50% to 75% Load Transients
Vo=0.8 V 75% to 50% Load Transients
Vo=3.3 V 50% to 75% Load Transients
Vo=3.3 V 75% to 50% Load Transients
Note: Transient Response at Vin=12 V, di/dt=0.5A/uS, external load with 150 uF tantalum capacitor and 22 uF
ceramic capacitor at the output, and Ta=25 deg C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs
Mechanical Outline
Pin Connections
Pin
1
2
3
4
5
6
Function
ON/OFF
Vin
GND
Vout
Trim
Sense
MIN: 0.14" * 0.095" (3.56mm * 2.41mm)
MAX: 0.165" * 0.11" (4.19mm * 2.79mm)
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 0118076
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com