BEL V7BA

NON-ISOLATED DC/DC CONVERTERS
8.3V-14V Input
0.75V-5.0V/6A Output
V7BA-06A2Ax Series
•
Non-Isolated
•
Under-Voltage Lockout (UVLO)
•
High Efficiency
•
OCP/SCP
•
High Power Density
•
Wide Input Range
•
Fixed Frequency
•
Wide Trim Range
•
Remote On/Off
•
Flexible Output Voltage Sequencing
•
Active Low/High (option)
Description
The Bel V7BA-06A2Ax modules are a series of non-isolated DC/DC converters that deliver up to 6A of output
current with full load efficiency of 92% at 5.0V output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75V to 5.0V over a wide range of input voltage (8.3V-14V). These
modules have a sequencing feature that enables designers to implement various types of output voltage
sequencing when powering multiple voltages on a board. The open-frame construction and small footprint
enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, over
current protection, short current protection, wide input, and programmable output voltage.
Part Selection
Output
Voltage
Input
Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
0.75V - 5.0V
8.3V - 14V
6A
30.0W
92%
V7BA-06A2AL
V7BA-06A2A0
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Input Voltage (continuous)
-0.3V
-
15V
Output Enable Terminal Voltage
-0.3V
-
15V
1
-0.3V
-
Vin
Ambient Temperature
-40°C
-
85°C
Storage Temperature
-55°C
-
125°C
Sequencing Voltage
Notes
Notes: All specifications are typical at 25°C unless otherwise stated.
1. V7BA-06A2Ax series of modules include a sequencing feature that enables users to implement
various types of output voltage sequencing in their applications. This is accomplished via an additional
sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin.
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
8.3V-14V Input
0.75V-5.0V/6A Output
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Min
8.3V
Typ
12V
Max
14V
Notes
Vo=5.0V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=0.75V
-
2.75A
1.85A
1.45A
1.05A
0.55A
4.0A
2.8A
2.2A
1.6A
0.8A
Vo=5.0V
Vo=0.75V
Remote Off Input Current
-
1mA
100mA
20mA
2mA
Input Reflected Ripple Current (pk-pk)
-
120mA
-
Input Reflected Ripple Current (RMS)
-
40mA
-
Input Current (no load)
2
2
Tested with two 100uF/25V tantalum
input capacitors & simulated source
impedance of 1uH, 5Hz to 20MHz.
I t Inrush Current Transient
-
0.002A s
0.02A2s
Turn-on Voltage Threshold
-
8.1V
8.2V
Turn-off Voltage Threshold
-
7.5V
8.0V
Notes: All specifications are typical at 25°C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
-2%Vo,set
Typ
-
Max
2%Vo,set
Output Voltage Set Point
-2.5%Vo,set
-
3.5%Vo,set
0.7525V
-
5.0V
Load Regulation
-0.5%Vo,set
0.4%Vo,set
0.5%Vo,set
Io=Io, min to Io, max
Line Regulation
Regulation Over Temperature
(-40°C to +85°C)
Output Current
-0.4%Vo,set
0.3%Vo,set
0.4%Vo,set
Vin=Vin, min to Vin, max
-
0.5%Vo,set
-
Tref=Ta, min to Ta, max
0A
-
6A
Current Limit Threshold
Short Circuit Surge Transient
7.2A
-
18A
-
2
0.25A s
-
Vo=0.75V
Vo=3.3V
Vo=5.0V
-
20mV
60mV
75mV
-
Vo=0.75V
Vo=3.3V
Vo=5.0V
-
7mV
20mV
25mV
8mS
10mS
-
0%
3%
0uF
0uF
-
1000uF
3000uF
Adjustment Range Selected by
External Resistor or Voltage
Notes
Vin=12V, lo=lomax, full load
Over all operating input
voltages, resistive loads and
temperature conditions
Ripple and Noise (pk-pk)
Ripple and Noise (RMS)
Turn on Time
Overshoot at Turn on
Output Capacitance
ESR ≥ 1mohm
ESR ≥ 10mohm
Tested with 0-20MHz, with
10uF/10V tantalum capacitor &
1uF/10V TDK ceramic capacitor
at the output.
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
8.3V-14V Input
0.75V-5.0V/6A Output
Output Specifications (Continued)
Parameter
Min
Typ
Max
Notes
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
VO = 0.75V 5V
Settling Time
-
200mV
-
-
50uS
-
-
200mV
-
-
50uS
-
di/dt=2.5A/uS; Vin=12V; and
with 10uF/10V tantalum
capacitor & 1uF/10V ceramic
capacitor at the output.
Note: All specifications are typical at nominal input (Vin=12V), full load at 25°C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
87%
85%
82%
80%
68%
90%
88%
85%
83%
71%
-
Notes
Efficiency
Vo=5.0V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=0.75V
Switching Frequency
Measured at Vin=12V, full load
250KHz
300KHz
350KHz
Over Temperature Shutdown
-
135°C
-
Output Trim Range (wide trim)
0.7525V
-
5V
MTBF
Calculated Per Bell Core TR-332 (IO =
Nominal; Ta = 25°C)
3,266,517 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
-
1 x 0.5 x 0.243
25.4 x12.7 x 6.16
3g
-
Note: All specifications are typical at 25°C unless otherwise stated.
Control Specifications
Parameter
Signal Low (Unit Off)
Min
-0.3V
Typ
-
Max
0.4V
Signal High (Unit On)
2.5V
-
14V
Signal Low (Unit On)
-0.3V
-
0.4V
Signal High (Unit Off)
2.5V
-
14V
V7BA-06A2AL; Remote On/Off pin open, Unit
on.
Sequencing Voltage
0V
-
Vin
Sequencing Voltage applied on SEQ pin
should be higher than output voltage.
-
-
2V/mS
10mS
-
-
-
100mV
200mV
200mV
400mV
Sequencing Slew Rate Capability
Sequencing Delay Time
Notes
V7BA-06A2A0; Remote On/Off pin open, Unit
on.
Delay from Vin, min to application of voltage
on SEQ pin
Tracking Accuracy
Power-Up
Power-Down
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
8.3V-14V Input
0.75V-5.0V/6A Output
Output Trim Equations
Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up resistor should be connected between the Trim pin and Ground.
Vout
Rtrim
10.507
=
−1
Vadj − 0.7525
Module Trim
Rtrim
GND
Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up voltage should be connected between the Trim pin and Ground.
Vout
Vtrim = 0.7 − 0.0667 × (Vadj − 0.7525)
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
8.3V-14V Input
0.75V-5.0V/6A Output
Efficiency Data
MODULE 3.3V
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
EFFICIENCY
EFFICIENCY
MODULE 5.0V
8.3
12.0
14.0
1A
2A
3A
4A
5A
6A
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
8.3V
12.0V
14.0V
1A
2A
OUTPUT CURRENT
4A
6A
5A
EFFICIENCY
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
8.3V
12.0V
14.0V
1A
6A
2A
3A
4A
5A
6A
OUTPUT CURRENT
OUTPUT CURRENT
MODULE 0.75V
90.0%
EFFICIENCY
EFFICIENCY
8.3V
12.0V
14.0V
3A
5A
MODULE 1.8V
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
2A
4A
OUTPUT CURRENT
MODULE 2.5V
1A
3A
80.0%
8.3V
12.0V
14.0V
70.0%
60.0%
50.0%
1A
2A
3A
4A
5A
6A
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
8.3V-14V Input
0.75V-5.0V/6A Output
Thermal Derating Curves
Vin=12V, Vo=0.75V
Vin=12V, Vo=2.5V
Vin=12V, Vo=5.0V
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
8.3V-14V Input
0.75V-5.0V/6A Output
Pin Connections
Pin
Function
1
Vout+
2
Trim
3
Ground
4
SEQ
5
Vin+
6
Remote On/Off
©2005 Bel Fuse Inc. Specifications subject to change without notice. 020605
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