BEL VRPB

NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
VRPB-10A Series
RoHS Compliant
•
Nonisolated
•
Industry standard pinout
•
Fixed frequency
•
High efficiency means less power dissipation
•
Optimized for cost
•
Remote on/off
•
Remote sense
•
Undervoltage lockout
•
Over current and short circuit protection
•
Overtemperature shutdown
Description
The Bel VRPB-10A series modules are non-isolated, step down DC/DC power converters that operate from a nominal 12V
source. These converters are available in a range of output voltages from 1.0V to 5.0V. They are packaged in an industry
standard single-in-line footprint and provide a maximum 10A output. Standard features include remote on/off, remote sense,
over current and short cicuit protection, overtemperature shutdown and output voltage adjust. Remote on/off logic is an
optional feature. These products may be used almost anywhere low-voltage silicon is employed and a 12V source is available.
Typical applications include file servers, routers, line cards and other computing and communications equipment.
Applications
Options
•
Telecommunications
•
•
Networking
•
Computers and peripherals
Remote on/off logic
Part Number Selection
Output
Voltage
Input
Voltage
Max. Output
Current
Max.
Output
Power
Typical
Efficiency
Part Number
Part Number
Active Low Option
5.0V
12V
10A
50W
94%
VRPB-10A50S
VRPB-10A50L
3.3V
12V
10A
33W
92%
VRPB-10A33S
VRPB-10A33L
2.5V
12V
10A
25W
90%
VRPB-10A25S
VRPB-10A25L
2.0V
12V
10A
20W
88%
VRPB-10A20S
VRPB-10A20L
1.8V
12V
10A
18W
87%
VRPB-10A18S
VRPB-10A18L
1.5V
12V
10A
15W
86%
VRPB-10A15S
VRPB-10A15L
1.2V
12V
10A
12W
83%
VRPB-10A12S
VRPB-10A12L
1.0V
12V
10A
10W
82%
VRPB-10A10S
VRPB-10A10L
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 1
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Absolute Maximum Ratings
Parameter
Max
Unit
-0.3
15
V
Vouten
-0.3
15
V
Ambient Temperature
Tamb
-40
85
°C
Storage Temperature
Tstor
-40
125
°C
Continuous Input Voltage
Output Enable Terminal Voltage
Symbol
Min
Vin
Typical
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC
converter or may permanently damage the device.
Input Specifications
Parameter
Symbol
Min
Operating Input Voltage
Vin
10.8
Input Current
Iin
Typical
Max
Units
13.2
V
5.5
A
60
mA
15
mA
Input Reflected Ripple Current1
120
mArms
Input Reflected Ripple Current (P-P)1
300
mApk
0.12
A 2s
No Load Input Current
Remote Off Input Current
3
I2t Inrush Current Transient
0.08
Turn On Voltage Threshold
9.7
Turn Off Voltage Threshold
8.0
8.8
V
10.0
V
Note: Input capacitance 22µF tantalum.
1. With simulated source impedance of 800nH, 5Hz to 20MHz.
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 2
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Specifications
Parameter
Module
Min
Typical
Max
4.900
3.247
2.460
1.968
1.771
1.476
1.181
0.984
5.0
3.3
2.5
2.0
1.8
1.5
1.2
1.0
5.100
3.353
2.540
2.032
1.829
1.524
1.219
1.016
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
10
6
6
5
5
3
3
3
20
16
12
10
9
7
6
5
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
2
2
2
2
2
2
2
2
10
10
8
6
5
5
5
5
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
17
15
12
11
10
9
8
7
35
30
25
22
20
18
16
15
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
29
23
20
18
17
14
13
12
65
56
45
38
34
30
27
25
Output Voltage Set Point1
Symbol
Units
Vout
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
V
Load Regulation
mV
mV
Line Regulation
Regulation Over Temperature
-40° to +85° C
mV
Total Output Voltage Regulation
mV
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
1. Vin = 12V, Iout = full load, Ta = 25° C.
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 3
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Specifications
Parameter
Module
Symbol
Min
Typical
Max
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
50
45
40
30
30
30
25
20
75
60
55
45
45
45
40
35
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
17
14
10
9
8
6
5
5
25
22
15
15
12
10
8
8
Output Ripple and Noise2
Units
mVp-p
Output Ripple and Noise2
mVrms
Output Current Range
All
Iout
0
10
A
Output DC Current Limit
All
Ioutlim
13
22
A
Shor t Circuit Surge
All
Ioutsurge
1.5
A 2s
Turn on Time
All
Ton
80
ms
Overshoot at Turn On
All
3
%
Output Capacitance
All
3300
µF
0.8
0
Cout
0
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
2. 0 - 20MHz BW, 22µF tantalum cap on output.
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 4
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Specifications
Parameter
Transient Response
Module
Symbol
Min
Typical
Max
Units
200
250
mV
50
80
µs
200
250
mV
50
80
µs
160
200
mV
50
80
µs
160
200
mV
50
80
µs
180
220
mV
50
80
µs
180
220
mV
50
80
µs
140
180
mV
50
80
µs
140
180
mV
50
80
µs
3
∆V 50% to 100% of Max Load
Settling Time
Ts
5.0V
∆V 100% to 50% of Max Load
Settling Time
Transient Response
Ts
3
∆V 50% to 100% of Max Load
Settling Time
Ts
3.3V
∆V 100% to 50% of Max Load
Settling Time
Transient Response
Ts
3
∆V 50% to 100% of Max Load
Settling Time
Ts
2.5V
∆V 100% to 50% of Max Load
Settling Time
Transient Response
Ts
3
∆V 50% to 100% of Max Load
Settling Time
Ts
2.0V
∆V 100% to 50% of Max Load
Settling Time
Ts
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
3. di/dt = 0.5A/uS, Vin = 12VDC, Ta = 25° C, and with a 22µF tantalum cap on output.
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 5
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Specifications
Parameter
Module
Symbol
Min
Typical
Max
Units
140
180
mV
50
80
µs
140
180
mV
50
80
µs
140
180
mV
50
80
µs
140
180
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.8V
∆V 100% to 50% of Max Load
Settling Time
Ts
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.5V
∆V 100% to 50% of Max Load
Settling Time
Ts
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.2V
∆V 100% to 50% of Max Load
Settling Time
Ts
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.0V
∆V 100% to 50% of Max Load
Settling Time
Ts
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
3. di/dt = 0.5A/uS, Vin = 12VDC, Ta = 25° C, and with a 22µF tantalum cap on output.
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 6
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
General Specifications
Parameter
Module
Symbol
Min
Typical
91
89
87
85
84
83
80
79
94
92
90
88
87
86
83
82
180
200
Max
η
Efficiency1
5.0V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
Switching Frequency
All
Fsw
Over temperature Shutdown
All
Tc
Output Voltage Trim Range2
All
Remote Sense Compensation
All
Weight
All
Units
%
220
130
90
kHz
°C
110
%
10
%
10
g
1. Vin=12V, full load and Ta=25° C.
2. 1V module is 95% to 110%.
Control Specifications
Parameter
Remote On/Off
Module
Symbol
All
Vouten
Signal Low (Unit Off)
Min
Typical
Max
Units
V
-0.3
0.4
V
2.8
13.2
V
-0.3
0.4
V
2.8
13.2
V
V7PB-10AxxS
Signal High (Unit On)
Signal Low (Unit On)
V7PB-10AxxL
Signal High (Unit Off)
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 7
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Efficiency Data
Module 5.0V
96%
EFFICIENCY
94%
92%
10.8V
90%
12.0V
13.2V
88%
86%
84%
82%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
Module 3.3V
96%
EFFICIENCY
94%
92%
10.8V
90%
12.0V
88%
13.2V
86%
84%
82%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
Module 2.5V
94%
EFFICIENCY
92%
90%
10.8V
88%
12.0V
86%
13.2V
84%
82%
80%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
Module 2.0V
94%
92%
EFFICIENCY
90%
88%
86%
10.8V
84%
12.0V
82%
13.2V
80%
78%
76%
74%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 8
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Efficiency Data
Module 1.8V
92%
90%
EFFICIENCY
88%
86%
10.8V
84%
12.0V
82%
13.2V
80%
78%
76%
74%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
EFFICIENCY
Module 1.5V
92%
90%
88%
86%
84%
82%
80%
78%
76%
74%
72%
70%
10.8V
12.0V
13.2V
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
Module 1.2V
91%
EFFICIENCY
86%
81%
10.8V
12.0V
76%
13.2V
71%
66%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
Module 1.0V
89%
EFFICIENCY
84%
79%
10.8V
12.0V
74%
13.2V
69%
64%
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 9
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Ripple and Noise
Ripple and noise at full load and 12Vdc input,
5.0Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
Ripple and noise at full load and 12Vdc input,
2.5Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
©2006 Bel Fuse Inc.
Ripple and noise at full load and 12Vdc input,
3.3Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
Ripple and noise at full load and 12Vdc input,
2.0Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 10
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.0 – 5.0V Output / 10A
POWER PRODUCTS
BP06VRPB-10A
Ripple and Noise
Ripple and noise at full load and 12Vdc input,
1.8Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
Ripple and noise at full load and 12Vdc input,
1.5Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
Ripple and noise at full load and 12Vdc input,
1.2Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
Ripple and noise at full load and 12Vdc input,
1.0Vdc output, full load with an external 22µF
tantalum capacitor and Ta=25° C
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 11
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Transient Response
Transient response: di/dt = 0.5A/µS, external load capacitance Co = 22µF (Tantalum capacitor)
Vout=5.0V
50% to 100% load transients at 12V input and Ta=25° C
Vout=5.0V
100% to 50% load transients at 12V input and Ta=25° C
Vout=3.3V
50% to 100% load transients at 12V input and Ta=25° C
Vout=3.3V
100% to 50% load transients at 12V input and Ta=25° C
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 12
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.0 – 5.0V Output / 10A
POWER PRODUCTS
BP06VRPB-10A
Transient Response
Transient response: di/dt = 0.5A/µS, external load capacitance Co = 22µF (Tantalum capacitor)
Vout=2.5V
50% to 100% load transients at 12V input and Ta=25° C
Vout=2.5V
100% to 50% load transients at 12V input and Ta=25° C
Vout=2.0V
50% to 100% load transients at 12V input and Ta=25° C
Vout=2.0V
100% to 50% load transients at 12V input and Ta=25° C
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 13
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Transient Response
Transient response: di/dt = 0.5A/µS, external load capacitance Co = 22µF (Tantalum capacitor)
Vout=1.8V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.8V
100% to 50% load transients at 12V input and Ta=25° C
Vout=1.5V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.5V
100% to 50% load transients at 12V input and Ta=25° C
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 14
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.0 – 5.0V Output / 10A
POWER PRODUCTS
BP06VRPB-10A
Transient Response
Transient response: di/dt = 0.5A/µS, external load capacitance Co = 22µF (Tantalum capacitor)
Vout=1.2V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.2V
100% to 50% load transients at 12V input and Ta=25° C
Vout=1.0V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.0V
100% to 50% load transients at 12V input and Ta=25° C
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 15
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Thermal Considerations
100LFM
Derating Curve
72˚ C
10
Output Current (A)
8
8A
6
4
Natural Convection
2
0
0
10
20
30
40
50
60
70
80 85
Ambient Temperature, Ta (˚C)
Output Current vs. Local Ambient
Temperature and Air Velocity
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 16
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Voltage Set-Point Adjustment
Trim Down Test Circuit
Trim Up Test Circuit
Vo
Vo
Trim
Trim
Gnd
Gnd
Output Voltage Set-Point Adjustment
Rtrim down = (
7.5 (Vo adj – 0.8)
Vo nom – Vo, adj
– 10) Kohm
Trim resistor value Rtrim_down(Kohm)
300
VRPB-10A50x Trim Resistor Calculation
270
240
210
180
150
120
90
60
30
0
4.5
4.55
4.6
4.65 4.7 4.75 4.8 4.85
Adjusted output voltage Vo,adj (V)
5.05
5.1
5.15
5.2 5.25
5.3 5.35
Adjusted output voltage Vo,adj(V)
4.9
4.95
5
Rtrim up =
(
Vo, adj – Vo nom
– 10) Kohm
Trim resistor value,Rtrim_up(Kohm)
300
6
270
240
210
180
150
120
90
60
30
0
5
©2006 Bel Fuse Inc.
5.4
5.45
5.5
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 17
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
VRPB-10A33x Trim Resistor Calculation
7.5 (Vo adj – 0.8)
Rtrim down = (
Vo nom – Vo, adj
– 15) Kohm
300
Trim resistor value Rtrim_down(Kohm)
Output Voltage Set-Point Adjustment
270
240
210
180
150
120
90
60
30
0
2.97
3
3.04
3.33
3.37
3.07 3.1 3.13 3.17 3.2 3.23
Adjusted output voltage Vo,adj (V)
3.27
3.3
Rtrim up =
(
6
Vo, adj – Vo nom
Trim resistor value,Rtrim_up(Kohm)
300
– 15) Kohm
270
240
210
180
150
120
90
60
30
0
3.3
3.4 3.43 3.46 3.5 3.53
Adjusted output voltage Vo,adj(V)
3.56
3.6
3.63
Trim resistor value Rtrim_down(Kohm)
300
VRPB-10A25x Trim Resistor Calculation
270
240
210
180
Rtrim down = (
150
7.5 (Vo adj – 0.8)
Vo nom – Vo, adj
– 20) Kohm
120
90
60
30
0
2.25
2.27
2.3
2.33 2.35 2.38 2.4 2.42 2.45
Adjusted output voltage Vo,adj (V)
2.48
2.5
Trim resistor value,Rtrim_up(Kohm)
300
270
Rtrim up =
240
210
(
6
Vo, adj – Vo nom
– 20) Kohm
180
150
120
90
60
30
0
2.5
©2006 Bel Fuse Inc.
2.52
2.55
2.58 2.6 2.63 2.65 2.67
Adjusted output voltage Vo,adj(V)
2.7
2.73
2.75
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 18
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Voltage Set-Point Adjustment
Rtrim down = (
4.64 (Vo adj – 0.8)
Vo nom – Vo, adj
– 15.4) Kohm
Trim resistor value Rtrim_down(Kohm)
VRPB-10A20x Trim Resistor Calculation
300
270
240
210
180
150
120
90
60
30
0
1.8
1.82
1.84
1.86 1.88 1.9 1.92 1.94 1.96
Adjusted output voltage Vo,adj (V)
2
2.02
2.04
2.06 2.08 2.1 2.12 2.14
Adjusted output voltage Vo,adj(V)
1.98
2
Rtrim up =
(
3.72
Vo, adj – Vo nom
Trim resistor value,Rtrim_up(Kohm)
300
– 15.4) Kohm
270
240
210
180
150
120
90
60
30
0
2.16
2.18
2.2
Trim resistor value Rtrim_down(Kohm)
300
270
VRPB-10A18x Trim Resistor Calculation
240
210
180
150
Rtrim down = (
120
4.64 (Vo adj – 0.8)
Vo nom – Vo, adj
– 16.9) Kohm
90
60
30
0
1.62
1.64
1.66
1.67 1.69 1.71 1.73 1.75 1.76
Adjusted output voltage Vo,adj (V)
1.78
1.8
Trim resistor value,Rtrim_up(Kohm)
300
270
Rtrim up =
240
210
(
3.72
Vo, adj – Vo nom
– 16.9) Kohm
180
150
120
90
60
30
0
1.8
1.82
1.84
1.85 1.87 1.89 1.91 1.93
Adjusted output voltage Vo,adj(V)
1.94
1.96
1.98
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 19
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Voltage Set-Point Adjustment
VRPB-10A15x Trim Resistor Calculation
4.64 (Vo adj – 0.8)
Vo nom – Vo, adj
Rtrim down = (
– 13.3) Kohm
Trim resistor value Rtrim_down(Kohm)
300
270
240
210
180
150
120
90
60
30
0
1.35
1.37
1.38
1.51
1.53
1.4 1.41 1.43 1.44 1.46 1.47
Adjusted output voltage Vo,adj (V)
1.49
1.5
Rtrim up =
(
3.72
Vo, adj – Vo nom
– 13.3) Kohm
Trim resistor value,Rtrim_up(Kohm)
300
270
240
210
180
150
120
90
60
30
0
1.5
1.54 1.56 1.58 1.59 1.61
Adjusted output voltage Vo,adj(V)
1.62
1.64
1.65
Trim resistor value Rtrim_down(Kohm)
300
270
VRPB-10A12x Trim Resistor Calculation
240
210
180
150
Rtrim down = (
120
90
1.82 (Vo adj – 0.8)
Vo nom – Vo, adj
– 3.16) Kohm
60
30
0
1.08
1.09
1.1
1.12 1.13 1.14 1.15 1.16 1.18
Adjusted output voltage Vo,adj (V)
1.19
1.2
Trim resistor value,Rtrim_up(Kohm)
300
270
240
Rtrim up =
210
180
(
1.46
Vo, adj – Vo nom
– 3.16) Kohm
150
120
90
60
30
0
1.2
1.21
©2006 Bel Fuse Inc.
1.22
1.24 1.25 1.26 1.27 1.28
Adjusted output voltage Vo,adj(V)
1.3
1.31
1.32
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 20
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPB-10A
Output Voltage Set-Point Adjustment
VRPB-10A10x Trim Resistor Calculation
Rtrim down = (
1.82 (Vo adj – 0.8)
Vo nom – Vo, adj
– 0.909) Kohm
Trim resistor value Rtrim_down(Kohm)
300
270
240
210
180
150
120
90
60
30
0
0.95 0.955 0.96 0.965 0.97 0.975 0.98 0.985 0.99 0.995
Adjusted output voltage Vo,adj (V)
(
Vo, adj – Vo nom
300
– 0.909) Kohm
Trim resistor value,Rtrim_up(Kohm)
Rtrim up =
1.46
1
270
240
210
180
150
120
90
60
30
0
1
1.01
1.02
1.03 1.04 1.05 1.06 1.07
Adjusted output voltage Vo,adj(V)
©2006 Bel Fuse Inc.
1.08
1.09
1.1
Specifications subject to change without notice. 02.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 21
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 1.0 – 5.0V Output / 10A
BP06VRPC-10A
Mechanical
VRPB-10A
0.550
[13.97]
0.063
[1.60]
2.00
[50.80]
0.370
[9.40]
0.150
[3.81]
0.050
[1.27]
0.100
[2.54]
1 234 5
0.025
[0.64]
0.170
[4.31]
6 7 8 91011
Pin
Function
1
+Vo
2
+Vo
3
Remote Sense
4
+Vo
5
Ground
6
Ground
7
+Vin
8
+Vin
9
No Pin
10
Trim
11
Remote On/Off
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other
hazardous substances from electronic products.
©2006 Bel Fuse Inc.
Specifications subject to change without notice. 02.06
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
page 22