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VRBC-10A2AL中文资料

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.docsj.com/doc/b517761947.html,

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input

0.75 Vdc - 5.0 Vdc/10 A Output

? Non-Isolated ?

Under-Voltage Lockout (UVLO)? Fixed Frequency ? Over Temperature Shutdown ? High Efficiency ? OCP/SCP ? Low Cost ? Wide Trim ? Wide Input

? Remote Sense ? Flexible Output Voltage Sequencing ? Remote On/Off ?

Active Low/High (Option) ? Output Voltage Prebias

? Industrial Temperature Range

Description

The Bel VRBC-10A2Ax are series of the non-isolated dc/dc converter Power Module. The modules use a SIP package. These converters are available in a range of output voltages from 0.75 Vdc to 5.0 Vdc over a wide range of input voltage (VIN = 8.3 Vdc - 14 Vdc). The Bel VRBC-10A2Ax has a sequencing feature that enables designers to implement various types of output voltage sequencing when powering. The efficiency is typically 95% at 5 Vdc output at full load.

Part Selection

Output Voltage Input Voltage Max. Output Current

Max. Output Power Typical Efficiency Model Number Active Low Model Number Active High 0.75 V - 5.0 V

8.3 V - 14 V

10 A

50.0 W

95%

VRBC-10A2AL

VRBC-10A2A0

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

Min Typ Max Notes

Input Voltage (continuous) -0.3 V - 15 V Output Enable Terminal Voltage

-0.3 V

15 V

Sequencing Voltage 1

-0.3 V - Vin Ambient Temperature -40 °C - 85 °C Storage Temperature

-55 °C

125 °C

Notes : All specifications are typical at 25 °C unless otherwise stated.

1. VRBC-10A2Ax 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 or leave it unconnected.

VRBC-10A2Ax RoHS Compliant Rev.A

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.docsj.com/doc/b517761947.html,

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input

0.75 Vdc - 5.0 Vdc/10 A Output

Input Specifications

Parameter

Min Typ Max Notes

Input Voltage

Vo, set ≤ 3.63 V Vo, set > 3.63 V 8.3 V 8.3 V 12 V 12 V 14 V 13.2 V

Input Current (full load) - - 6.5 A An input line fuse must always be used. Input Current (no load) - 80 mA - Remote Off Input Current

- 2 mA -

Input Reflected Ripple Current (pk-pk)

100 mA

Input Reflected Ripple Current (rms) - -

30 mA

Tested with one 1000 uF/25 V AL input capacitor with ESR=0.03 ohm max and 4 × 47 uF/25 V tan

capacitors with ESR=0.013 ohm max at 100 kHz, & simulated source impedance of 1000 nH, 5 Hz to 20 MHz. I 2

t Inrush Current Transient - 0.2 A 2

s 0.4 A 2

s Turn-on Voltage Threshold - 7.9 V Turn-off Voltage Threshold

7.8 V

Note : All specifications are typical at 25 °C unless otherwise stated.

Output Specifications

Parameter

Min Typ Max Notes

Output Voltage Set Point -2% Vo,set

- 2% Vo,set

Vin=12 V, full load Load Regulation

- 0.3% Vo,set - Line Regulation

- 0.2% Vo,set -

Regulation Over Temperature (-40 °C to +85 °C) - 0.4% Vo,set

- Tref=Tamin to Tamax Output Current

0 A -

10 A

Current Limit Threshold - 200% Io -

Short Circuit Surge Transient - 1 A 2

s 3 A 2

Ripple and Noise (pk-pk) - 40 mV 100 mV

Ripple and Noise (rms) - 20 mV 40 mV Tested with 0-20 MHz, with 10 uF tantalum capacitor &

1uF ceramic capacitor Turn on Time - 8 mS 20 mS Overshoot at Turn on - - 1% Vo,set Output Capacitance 0 uF

5000 uF

Transient Response 50% ~ 100% Max Load

- 100 mV - Settling Time - 50 uS - 100% ~ 50% Max Load

100 mV

Settling Time

V O = 0.75 V -5 V - 50 uS

- di/dt=2.5 A/uS; Vin=12 V;

and with 470 uF tantalum capacitors at the output

Note : All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output

General Specifications

Parameter Min Typ Max Notes Efficiency

Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.75 V -

95%

93%

92%

90%

89%

87.5%

81%

Measured at Vin=12 V, full load

Switching Frequency 265 kHz 300 kHz335 kHz

Over Temperature Shutdown1 -

130 °C - Output Voltage Trim Range 0.7525 V- 5.0 V

Remote Sense Compensation - - 0.5 V

MTBF 5,114,191 hours Calculated Per Bell Core SR-332 (I O = 80% load; Vo=3.3 V; Vin=12 V; T a = 25°C)

Dimensions

Inches (L × W × H) Millimeters (L × W × H)

2.0 x 0.5 x 0.32 50.8x 12.7x 8.13

Weight -

7.1

- Notes: All specifications are typical at 25 °C unless otherwise stated.

1. The Tref temperature measurement location:

Control Specifications

Parameter Min Typ Max Notes Remote On/Off

Signal Low (Unit Off) -0.2 V - 0.3 V Signal High (Unit On) - - Vin, max VRBC-10A2A0; Remote On/Off pin open, Unit on.

Signal Low (Unit On) -0.2 V - 0.3 V Signal High (Unit Off) 2.5 V - Vin, max VRBC-10A2AL; Remote On/Off pin open, Unit on.

Voltage Sequencing

Sequencing Delay Time 25 mS - - Delay from Vin, min to application of voltage on SEQ pin

Sequencing Slew Rate Capability - - 2 V/mS Tracking Accuracy

Power-Up Power-Down -

100 mV

200mV

200 mV

400mV

Vinmin to Vinmax; Iomin to Iomax; Vseq

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input

0.75 Vdc - 5.0 Vdc/10 A Output

Output Trim Equations

Equation for calculating the trim resistor (in ?) given the desired output voltage (Vo) is shown below. The Rtrim resistor should be connected between the trim pin and GND.

Equation for calculating the trim voltage (in V) given the desired output voltage (Vo) is shown below. The Vtrim

voltage should be connected between the trim pin and GND.

Rtrim

Module

Vout

GND

Sense

trim

?????=10007525.010500Vo R trim

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.docsj.com/doc/b517761947.html,

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input

0.75 Vdc - 5.0 Vdc/10 A Output

Efficiency Data

Module 5.0 V

60.0%

70.0%80.0%90.0%100.0%1 A

2.5 A

5 A 7.5 A

10 A

Output current

E f f i c i e n c y

8.3 V 12.0 V 14.0 V

Module 3.3V

60.0%

70.0%80.0%90.0%100.0%1 A

2.5 A

5 A

7.5 A

10 A

Output current

E f f i c i e n c y

8.3 V 12.0 V 14.0 V

Module 0.75V

50.0%

60.0%70.0%80.0%90.0%1 A

2.5 A

5 A 7.5 A 10 A

Output current

E f f i c i e n c y

8.3 V 12.0 V 14.0 V

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.docsj.com/doc/b517761947.html,

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output

Ripple and Noise Waveforms

12 Vdc input, 0.75 V output 12 Vdc input, 3.3 V output

12 Vdc input, 5.0 V output

Note: Ripple and Noise at full load, with 10 uF tantalum capacitor and 1 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 ? https://www.docsj.com/doc/b517761947.html,

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output

Transient Response Waveforms

Transients 50% to 100% load 0.75 Vdc output Transients 100% to 50% load 0.75 Vdc output

Transients 50% to 100% load 3.3 Vdc output Transients 100% to 50% load 3.3 Vdc output

Transients 50% to 100% load

5.0 Vdc output Transients 100% to 50% load 5.0 Vdc output

Note: Transient response at 12 V input, di/dt=2.5 A/uS, with external 470 uF tantalum capacitor at the output,

Ta=25 deg C.

NON-ISOLATED DC/DC CONVERTERS

8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output

2007 Bel Fuse Inc. Specifications subject to change without notice. 011707