BEL SRBC

NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input
SRBC-16E1Ax
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0.75 Vdc - 3.63 Vdc/16 A Output
RoHS Compliant
Non-Isolated
High Efficiency
Fixed Frequency
Low Cost
Over Temperature Shutdown
Logic Low/High (option)
Industrial Temperature Range
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Rev.A
Under-voltage Lockout (UVLO)
OCP/SCP
Wide Trim
Wide Input
Remote Sense
Remote On/Off
Description
The Bel SRBC-16E1Ax is part of the non-isolated dc/dc converter series. The modules use a SMT package.
These converters are available in a range of output voltages from 0.75 Vdc to 3.63 Vdc over a wide range of input
voltage (Vin = 4.5 Vdc - 14 Vdc). The efficiency is typically 92% at 3.3 Vdc output at full load.
Part Selection
Output
Voltage
0.75 V - 3.63 V
Input
Voltage
4.5 V -14 V
Max. Output
Current
16 A
Max. Output
Power
58 W
Typical
Efficiency
92%
Model Number
Active Low
SRBC-16E1AL
Model Number
Active High
SRBC-16E1A0
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray 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
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40 °C
-55 °C
Typ
-
Max
15 V
15 V
85 °C
125 °C
Notes
Note: All specifications are typical at 25 °C unless otherwise stated.
Input Specifications
Parameter
Input Voltage
Vo,set < 3.0
Vo,set ≥ 3.0
Min
Typ
Max
4.5 V
Vo,set+1.5 V
-
14 V
14 V
Input Current (full load)
-
-
15 A
Input Current (no load)
Remote Off Input Current
-
100 mA
2 mA
-
Input Reflected Ripple Current
(pk-pk)
-
-
400 mA
Input Reflected Ripple Current
(rms)
-
-
150 mA
I t Inrush Current Transient
-
0.2 A s
0.4 A s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
3.7 V
4.2 V
-
4.2 V
2
2
Notes
This power module is not internally fused. An
input line fuse must always be used
Tested with one 1000 uF/25 V AL input
capacitor with ESR=0.03 ohm max and 6 ×
47 uF/16 V Tantalum capacitors with
ESR=0.013 ohm max at 100 kHz, &
simulated source impedance of 1000 nH, 5
Hz to 20 MHz.
2
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Output Specifications
Parameter
Output Voltage Set Point
Min
-2% Vo,set
Typ
-
Max
2% Vo,set
Load Regulation
-
0.1% Vo,set
-
Line Regulation
Regulation Over Temperature
(-40 °C to +85 °C)
Output Current
-
0.1% Vo,set
-
-
0.3% Vo,set
-
0A
-
16 A
-
180% Io,out
Current Limit Threshold
Short Circuit Surge Transient
-
1A s
3A s
Ripple and Noise (pk-pk)
-
30 mV
75 mV
Ripple and Noise (rms)
-
12 mV
30 mV
Turn on Time
-
12 mS
20 mS
Overshoot at Turn on
-
-
1% Vo,set
0 uF
-
5000 uF
-
150 mV
50 uS
150 mV
50 uS
-
Output Capacitance
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
All
2
Notes
Vin=12 V, full load
2
Tested with 0-20 MHz BW,
10 uF tantalum capacitor & 1uF
ceramic capacitor at the output
di/dt=2.5 A/uS; Vin=12 V and
with 2 x 150 uF polymer
capacitor 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
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
92%
90%
88%
87%
85%
79%
-
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
92%
90%
87%
86%
83%
78%
-
200 kHz
230 kHz
260 kHz
-
130 °C
-
0.7525 V
-
3.63 V
-
-
0.5 V
Efficiency
Efficiency
Switching Frequency
Over Temperature Shutdown
Output Trim Range (Wide Trim)
Remote Sense Compensation
MTBF
Notes
Measured at Vin=12 V, lo=lo-max
Measured at Vin=5 V, lo=lo-max
Calculated Per Bell Core SR-332
(IO = 80%Io,max; Vin=12 V;
Vo=3.3 V; Ta=25°C)
2,666,488 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
-
1.3 x 0.53 x 0.315
33.02 x 13.46 x 8.00
8g
-
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Control Specifications
Parameter
Remote On/Off
Min
Typ
Max
Signal Low (Unit Off)
-0.2 V
-
0.3 V
Signal High (Unit On)
-
-
Vin, max
Signal Low (Unit On)
-0.2 V
-
0.3 V
Signal High (Unit Off)
2.5 V
-
Vin, max
Notes
SRBC-16E1A0; Remote On/Off pin open,
Unit on.
SRBC-16E1AL; Remote On/Off pin open,
Unit on.
Output Trim Equations
Equation for calculating the trim resistor (in Ω) given the desired output voltage (Vo) is shown below. The Trim Up
resistor should be connected between the Trim pin and Ground.
Vout
Rtrim =
10500
− 1000
Vo − 0.7525
Sense
Module
trim
Rtrim
GND
Equation for calculating the trim voltage (in V) given the desired output voltage (Vo) is shown below. The Trim Up
voltage should be connected between the Trim pin and Ground.
Vout
Vtrim = 0.7 − 0.0667 × (Vo − 0.7525)
Sense
Module
trim
Vtrim
GND
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Efficiency Data
MODULE 2.5 V
MODULE 3.3 V
90%
5.0 V
12.0 V
80%
E F F IC IE N C Y
E F F IC IE N C Y
100%
100%
90%
5.0 V
12.0 V
80%
70%
60%
70%
1.6
4.0
8.0
12.0
1.6
16.0
4.0
MODULE 1.8 V
16.0
MODULE 1.5 V
100%
90%
5.0 V
12.0 V
80%
70%
E FFIC IE N C Y
E F F IC IE N C Y
12.0
OUTPUT CURRENT
OUTPUT CURRENT
100%
90%
5.0 V
80%
12.0 V
70%
60%
60%
4.0
8.0
12.0
1.6
16.0
8.0
12.0
OUTPUT CURRENT
MODULE 1.2 V
MODULE 0.75 V
100%
90%
80%
70%
60%
50%
5.0 V
12.0 V
1.6
4.0
OUTPUT CURRENT
4.0
8.0
12.0
OUTPUT CURRENT
16.0
E F F IC IE N C Y
1.6
E F F IC IE N C Y
8.0
16.0
100%
90%
80%
70%
60%
50%
5.0 V
12.0 V
1.6
4.0
8.0
12.0
16.0
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Thermal Derating Curves
Vo=0.75 V; Vin=5.0 V
Vo=0.75 V; Vin=12.0 V
Vo=1.8 V; Vin=5.0 V
Vo=1.8 V; Vin=12 V
Vo=3.3 V; Vin=5.0 V
Vo=3.3 V; Vin=12 V
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Ripple and Noise Waveforms
Vin=5 V, Vo=0.7525 V
Vin=5 V, Vo=1.2 V
Vin=5 V, Vo=1.5 V
Vin=12 V, Vo=0.7525 V
Vin=12 V, Vo=1.2 V
Vin=12 V, Vo=1.5 V
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Ripple and Noise Waveforms (continued)
Vin=5 V, Vo=1.8 V
Vin=12 V, Vo=1.8 V
Vin=5 V, Vo=2.5 V
Vin=12 V, Vo=2.5 V
Vin=5 V, Vo=3.3 V
Vin=12 V, Vo=3.3 V
Note: Ripple and noise at full load, with 10uF tantalum capacitor and 1uF ceramic at the output, and Ta=25℃.
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Transient Response Waveforms
50% to 100% load Transient at Vin=5 V, Vo=0.75 V
100% to 50% load Transient at Vin=5 V, Vo=0.75 V
50% to 100% load Transient at Vin=5 V, Vo=1.2 V
100% to 50% load Transient at Vin=5 V, Vo=1.2 V
50% to 100% load Transient at Vin=5 V, Vo=1.5 V
100% to 50% load Transient at Vin=5 V, Vo=1.5 V
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Transient Response Waveforms (continued)
50% to 100% load Transient at Vin=5 V, Vo=1.8 V
100% to 50% load Transient at Vin=5 V, Vo=1.8 V
50% to 100% load Transient at Vin=5 V, Vo=2.5 V
100% to 50% load Transient at Vin=5 V, Vo=2.5 V
50% to 100% load Transient at Vin=5 V, Vo=3.3 V
100% to 50% load Transient at Vin=5 V, Vo=3.3 V
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Transient Response Waveforms (continued)
50% to 100% load Transient at Vin=12 V, Vo=0.75 V
100% to 50% load Transient at Vin=12 V, Vo=0.75 V
50% to 100% load Transient at Vin=12 V, Vo=1.2 V
100% to 50% load Transient at Vin=12 V, Vo=1.2 V
50% to 100% load Transient at Vin=12 V, Vo=1.5 V
100% to 50% load Transient at Vin=12 V, Vo=1.5 V
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Transient Response Waveforms (continued)
50% to 100% load Transient at Vin=12 V, Vo=1.8 V
100% to 50% load Transient at Vin=12 V, Vo=1.8 V
50% to 100% load Transient at Vin=12 V, Vo=2.5 V
100% to 50% load Transient at Vin=12 V, Vo=2.5 V
50% to 100% load Transient at Vin=12 V, Vo=3.3 V
100% to 50% load Transient at Vin=12 V, Vo=3.3 V
Note: Transient response with external load capacitance Cext=2x150uF (Polymer capacitors), and Ta=25℃.
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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
Mechanical Outline
Pin Connections
Pin
Function
1
On/Off
2
Vin
3
N/A
4
Ground
5
Vout
6
Trim
7
Sense
PAD SIZE:
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. 011807
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