PSB365-9IP [BEL]

DC-DC Regulated Power Supply Module, 1 Output, Hybrid;


型号：	PSB365-9IP
厂家：	BEL FUSE INC.
描述：	DC-DC Regulated Power Supply Module, 1 Output, Hybrid
文件：	总13页 (文件大小：220K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Input voltage up to 80 V DC

Single output of 5.1 to 36V DC

No input to output isolation

• High efficiency up to 96%

• Wide input voltage range

• Low input to output differential voltage

• Very good dynamic properties

• Input undervoltage lock-out

• External output voltage adjustment and inhibit

• 2 temperature ranges

1.3"

2.7"

• Continuous no-load and short-circuit proof

• No derating

106

4.2"

Safety according to IEC/EN 60950

Summary

ules with input voltages up to 80 V are specially designed

for secondary switched and battery driven applications.The

case design allows operation at nominal load up to 71°C

without additional cooling.

The PSB series of positive switching regulators is designed

as power supply modules for electronic systems. Their ma-

jor advantages include a high level of efficiency that re-

mains virtually constant over the entire input range, high

reliability, low ripple and excellent dynamic response. Mod-

Model Selection and Key Data

Table 1: Type survey

Output

voltage

V_{o nom}[V]

Output

current

I_{o nom}[A]

Input

Efficiency ²

Type

designation

Options

Superseded

old type

(phased-out)

voltage range voltage

V_i[V] ¹

7 – 40

V_{i nom}[V]

_min[%] h_typ[%]

5.1

PSB 5A7-7iR

PSB 5A6-7iR

PSB 125-7iR

PSB 155-7iR

PSB 245-7iR

PSB 365-7iR

-9, L, P, C

PSR 57-7

PSR 55-7

PSR 124-7

PSR 154-7

PSR 244-7

PSR 364-7

8 – 80

15 – 80

19 – 80

29 – 80

42 – 80

¹See: Electrical Input Data: DV_{io min}(min. differential voltage V_i– V_o).

²Efficiency at V_{i nom}and I_{o nom}

Non standard input/output configurations or special custom adaptions are available on request.

See also: Commercial Information: Inquiry Form for Customized Power Supply.

Table of Contents

Page

Summary.......................................................................... 1

Model Selection and Key Data........................................ 1

Part Number Description ................................................. 2

Functional Description ..................................................... 2

Electrical Input Data......................................................... 3

Electrical Output Data ...................................................... 4

Auxiliary Functions........................................................... 6

Electromagnetic Compatibility (EMC) .............................. 7

Immunity to Environmental Conditions ............................ 8

Mechanical Data .............................................................. 9

Safety and Installation Instructions ................................ 10

Description of Options ................................................... 11

Accessories ................................................................... 12

EC Declaration of Conformity ........................................ 13

REV. OCT 17, 2003

Page 1 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Part Number Description

PSB 12 5 -7 L i R P C

Positive switching regulator in case B02 ................... PSB

Nominal output voltage in volt (5A for 5.1 V)........ 5A, ...36

Nominal output current in ampere .......................... 5, 6, 7

Operational ambient temperature range T_A

–25 to 71°C......................................................... -7

–40 to 71°C (option) ........................................... -9

Input filter (option)............................................................ L

Inhibit input ....................................................................... i

Control input for output voltage adjustment ¹................. R

Potentiometer ¹(option) ................................................... P

Thyristor crowbar (option) .............................................. C

¹Feature R excludes option P and vice versa.

Example: PSB 125-7LiPC = A positive switching regulator with a 12 V, 5 A output, ambient temperature range of

–25 to 71°C, input filter, inhibit input, potentiometer and thyristor crowbar.

Functional Description

The switching regulators are designed using the buck con-

verter topology. See also: Technical Information: Topolo-

gies. The input is not electrically isolated from the output.

During the on period of the switching transistor, current is

transferred to the output and energy is stored in the output

choke. During the off period, this energy forces the current

to continue flowing through the output choke to the load

and back through the freewheeling diode. Regulation is

accomplished by varying the on/off duty ratio of the power

switch.

These regulators are ideal for

a wide range of

applications, where input to output isolation is not

necessary, or where already provided by an external front

end (e.g. a transformer with rectifier). To optimise

customer’s needs, additional options and accessories are

available.

03011

I_o

I _i

Vo+

Vi+

Option C

Control circuit

V_i

V_o

Option C

Go–

Gi–

Option P

Fig. 1

Block diagram

REV. OCT 17, 2003

Page 2 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Electrical Input Data

General Conditions: T_A= 25°C, unless T_Cis specified

Table 2a: Input data

Input

PSB 5A7

min typ

PSB 5A6

typ max

PSB 125

typ max

Characteristics

Conditions

max

min

Unit

V_i

Operating input voltage

I_o= 0 – I_{o nom}

T_{C min}– T_{C max}

V DC

DV_{io min}Min. diff. voltage (V_i– V_o) ¹

1.9

2.9

V_{i UVL}Undervoltage lock-out

6.3

7.3

I_{i NL}

I_{inr p}

t_{inr r}

No load input current

I_o= 0, V_{i min}– V_{i max}

Peak value of inrush current V_{i nom}

150

without option L

Rise time

µs

t_{inr h}

I_{inr p}

t_{inr r}

Time to half-value

Peak value of inrush current V_{i nom}

100

180

with option L

Rise time

µs

t_{inr h}

u_{i RFI}

Time to half-value

100

Input RFI level, EN 55011/22 V_{i nom}, I_{o nom}

0.15 – 30 MHz

with option L

Table 2b: Input data

Input

PSB 155

PSB 245

PSB 365

Characteristics

Conditions

min typ

max

min typ max

min typ max Unit

V_i

Operating input voltage

I_o= 0 – I_{o nom}

T_{C min}– T_{C max}

6 ¹

V DC

DV_{io min}Min. diff. voltage V_i– V_o

V_{i o}

I_{i 0}

Undervoltage lock-out

No load input current

7.3

I_o= 0, V_{i min}– V_{i max}

I_{inr p}

t_{inr r}

t_{inr h}

I_{inr p}

t_{inr r}

t_{inr h}

u_{i RFI}

Peak value of inrush current V_{i nom}

150

without option L

Rise time

µs

Time to half-value

Peak value of inrush current V_{i nom}

180

with option L

Rise time

µs

Time to half-value

100

Input RFI level, EN 55011/22 V_{i nom}, I_{o nom}

0.15 – 30 MHz

with option L

¹The minimum differential voltage DV_{io min}between input and output increases linearly by 0 to 1 V between T_A= 46°C and 71°C

(T_C= 70°C and 95°C)

04016

External Input Circuitry

Vo+

Vi+

Gi–

The sum of the lengths of the supply lines to the source or

to the nearest capacitor ≥100 µF (a + b) should not exceed

5 m unless option L is fitted.This option is recommended in

order to prevent power line oscillations and reduce super-

imposed interference voltages. See also: Technical Infor-

mation: Application Notes.

Go–

Fig. 2

Switching regulator with long supply lines.

REV. OCT 17, 2003

Page 3 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Electrical Output Data

General Conditions:

– T_A= 25°C, unless T_Cis specified

– R pin not connected, with opt. P, V_oadjusted to V_{o nom}at I_{o nom}

Table 3a: Output data

Output

PSB 5A7

PSB 5A6

PSB 125

typ max

Characteristics

Conditions

min typ

max

5.13

7.0

min

5.07

typ max

min

Unit

V_o

I_o

Output voltage

V_{i nom}, I_{o nom}

5.07

5.13 11.93

12.07

5.0

Output current ¹

V_{i min}– V_{i max}

T_{C min}– T_{C max}

6.0

7.8

I_oL

Output current limitation

7.0

9.1

6.0

5.0

6.5

response

u_o

Output

voltage

noise

Switching freq. V_{i nom}, I_{o nom}

IEC/EN 61204 ²

mV_pp

Total

BW = 20 MHz

Static line regulation

Static load regulation

V_{i min}– V_{i max}, I_{o nom}

V_{i nom}, I_o= 0 – I_{o nom}

V_{o d}

t_d

Dynamic

load

regulation

Voltage deviat. V_{i nom}

120

100

_{o nom}↔ ¹/

I_{o nom}

Recovery time

µs

IEC/EN 61204 ²

aV_o

Temperature coefficient

DV_o/DT_C(T_{C min}– T_{C max}

V_{i min}– V_{i max}

I_o= 0 – I_{o nom}

±1

±2

mV/K

)

±0.02

±0.02 %/K

Table 3b: Output data

Output

PSB 155

PSB 245

min typ max

24.14 35.78

PSB 365

Characteristics

Conditions

min typ

max

min typ max Unit

V_o

I_o

Output voltage

V_{i nom}, I_{o nom}

14.91

15.09 23.86

36.22

5.0

Output current ¹

V_{i min}– V_{i max}

T_{C min}– T_{C max}

5.0

6.5

5.0

6.5

I_oL

Output current limitation

5.0

6.5

response

u_o

Output

voltage

noise

Switching freq. V_{i nom}, I_{o nom}

120

125

180

185

mV_pp

IEC/EN 61204 ²

BW = 20 MHz

Total

Static line regulation

Static load regulation

V_{i min}– V_{i max}, I_{o nom}

V_{i nom}, I_o= 0 – I_{o nom}

150

120

100

120

180

100

200

160

V_{o d}

t_d

Dynamic

load

regulation

Voltage deviat. V_{i nom}

_{o nom}↔ ¹/

I_{o nom}

100

120

Recovery time

µs

IEC/EN 61204 ²

αV_o

Temperature coefficient

∆V_o/∆T_C(T_{C min}-T_{C max}

V_{i min}– V_{i max}

±3

±5

±8

mV/K

I_o

I_o= 0 –

)

nom

±0.02

±0.02 %/K

¹See also: Thermal Considerations.

²See: Technical Information: Measuring and Testing.

REV. OCT 17, 2003

Page 4 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

05010

V_o

Vod

DV_{o I}

Vod

t_d

I /I

o nom

Fig. 3

Dynamic load regulation.

≥10 µs

Thermal Considerations

Parallel and Series Connection

When a switching regulator is located in free, quasi-station-

ary air (convection cooling) at a temperature T_A= 71°C and

is operated at its nominal output current I_{o nom}, the case

temperature T_Cwill be about 95°C after the warm-up

phase, measured at the Measuring point of case tempera-

ture T_C(see: Mechanical Data).

Outputs of equal nominal voltages can be parallel-con-

nected. However, the use of a single unit with higher output

power, because of its power dissipation, is always a better

solution.

In parallel-connected operation, one or several outputs may

operate continuously at their current limit knee-point which

will cause an increase of the heat generation. Conse-

quently, the max. ambient temperature value should be re-

duced by 10 K.

Under practical operating conditions, the ambient tem-

perature T_Amay exceed 71°C, provided additional meas-

ures (heat sink, fan, etc.) are taken to ensure that the case

temperature T_Cdoes not exceed its maximum value of

95°C.

Outputs can be series-connected with any other module. In

series-connection the maximum output current is limited by

the lowest current limitation. Electrically separated source

voltages are needed for each module!

Example: Sufficient forced cooling allows T_{A max}= 85°C. A

simple check of the case temperature T_C(T_C≤95°C) at full

load ensures correct operation of the system.

I_o/I_{o nom}

Short Circuit Behaviour

Forced cooling

A constant current limitation circuit holds the output current

almost constant whenever an overload or a short circuit is

applied to the regulator's output. It acts self-protecting and

recovers – in contrary to the fold back method – automati-

cally after removal of the overload or short circuit condition.

1.0

0.9

0.8

Convection cooling

0.7

0.6

0.5

0.4

0.3

0.2

0.1

V_o/V_{o nom}

T_{C max}

05043

1.2

1.0

0.8

I_{o L}

0.6

T [˚C]

100

A min

0.4

0.2

Fig. 4

Output current derating versus temperature

I_o/I_{o nom}

Fig. 5

Overload, short-circuit behaviour V_oversus I_o

0.2

0.4

0.6

0.8

1.0

1.2

1.4

Output Protection

A voltage suppressor diode which in worst case conditions

fails into a short circuit, (or a thyristor crowbar, option C)

protects the output against an internally generated over-

voltage. Such an overvoltage could occur due to a failure of

either the control circuit or the switching transistor.The out-

put protection is not designed to withstand externally ap-

plied overvoltages. The user should ensure that systems

with Power-One power supplies, in the event of a failure, do

not result in an unsafe condition (fail-safe).

REV. OCT 17, 2003

Page 5 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Auxiliary Functions

06009

i Inhibit for Remote On and Off

Vo+

Vi+

Gi–

I_inh

Note: With open i-input, output is enabled (V_o= on)

The inhibit input allows the switching regulator output to be

disabled via a control signal. In systems with several units,

this feature can be used, for example, to control the activa-

tion sequence of the regulators by a logic signal (TTL, C-

MOS, etc.). An output voltage overshoot will not occur when

switching on or off.

V_inh

Go–

Fig. 7

I_inh[mA]

Definition of I_inhand V_inh

06034

06001

V_o/V_{o nom}

0.1

t_f

t_r

V_oon

V_ooff

Inhibit

–50

V_inh[V]

–20

–30

–10

–40

10 20 30 40 50

Fig. 6

Fig. 8

Typical inhibit current I_inhversus inhibit voltage V_inh

Output response as a function of inhibit signal

Table 4: Inhibit characteristics

Characteristics

Conditions

min

–50

typ

max

+0.8

+50

Unit

V_inh

Inhibit input voltage to keep V_o= on

V_{i min}– V_{i max}

T_{C min}– T_{C max}

V DC

regulator output voltage-

V_o= off

+2.4

t_r

Switch-on time after inhibit command

Switch-off time after inhibit command

Input current when inhibited

V_i= V_{i nom}

R_L=V_{o nom}/I_{o nom}

t _f

I_{i inh}

V_i= V_{i nom}

R Control for Output Voltage Adjustment

Caution: To prevent damage V_extshould not exceed

20 V, nor be negative and R₂should never be less than

47 kΩ.

Note: With open R input, V_o≈ V_{o nom}. R excludes option P.

The output voltage V_ocan either be adjusted with an exter-

nal voltage (V_ext) or with an external resistor (R₁or R₂).The

adjustment range is 0 – 108% V_{o nom}.The minimum differen-

tial voltage DV_{io min}between input and output (see: Electri-

cal Input Data) should be maintained. Undervoltage lock-

out = Minimum input voltage.

Vo+

06036

V_ref

R₂

R₁

4000 Ω

–

Vo+

06035

V_ref

4000 Ω

–

Go–

V_ext

Fig. 10

Voltage adjustment with external resistor R₁or R₂

Go–

Fig. 9

Voltage adjustment with V_extbetween R and G (Go–)

a) V_o= 0-108% V_{o nom}, using V_extbetween R and G (Go–)

V_o

V_ext

_ext≈ 2.5 V • –––––

V_o≈ V_{o nom}• –––––

V_{o nom}

2.5 V

REV. OCT 17, 2003

Page 6 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

LED Output Voltage Indicator

b) V_o= 0 –100% V_{o nom}, using R₁between R and G (Go–):

A yellow output indicator LED shines when the output volt-

age is higher than approx. 3 V.

4000 Ω • V_o

V_{o nom}• R₁

V_o≈ –––––––––––

R₁≈ –––––––––––

V_{o nom}–V_o

R₁+ 4000 Ω

c) V_o= 100% – 108% V_{o nom}, using R₂between R and Vo+:

V_{o max}= V_{o nom}+ 8%

4000 Ω • V_o• (V_{o nom}– 2.5 V)

R₂≈ ––––––––––––––––––––––––

2.5 V • (V_o– V_{o nom}

)

V_{o nom}• 2.5 V • R₂

V_o≈ ––––––––––––––––––––––––––––––––

2.5 V • (R₂+ 4000 Ω) – V_{o nom}• 4000 Ω

Electromagnetic Compatibility (EMC)

Electromagnetic Immunity

General condition: Case not earthed.

Table 5: Immunity type tests

Phenomenon Standard ¹Class

Level

Coupling

mode ²

Value

applied

Waveform

Source

Imped.

Test

procedure

Per-

oper. form.

1 MHz burst

disturbance

IEC

60255-22-1

III

i/o, i/c, o/c

+i/–i, +o/–o

i/c, +i/–i

2500 V_p

1000 V_p

800 V_p

400 damped

1 MHz waves/s

200 Ω

2 s per

coupling mode

yes

A ⁵

Voltage surge

IEC 60571-1

100 µs

50 µs

100 Ω

1500 V_p

1 pos. and 1 neg.

voltage surge per

coupling mode

3000 V_p

4000 V_p

7000 V_p

5 µs

1 µs

100 ns

1/50 ns

Electrostatic

discharge

IEC/EN

61000-4-2

contact discharge 6000 V_p

to case

330 Ω

10 positive and

10 negative

discharges

yes

B^{4 5}

Electromagnetic IEC/EN

field

antenna

i/c, +i/–i

3 V/m

AM 80%

1 kHz

80 – 1000 MHz

yes

61000-4-3

Electrical fast

transient/burst

IEC/EN

61000-4-4

2000 V_pbursts of 5/50 ns 50 Ω

60s positive

60s negative

bursts per

A ⁴

5 kHz rep. rate

transients with

15 ms burst

4000 V_p

B^{4 5}

coupling mode

duration and a

300 ms period

Surge

IEC/EN

61000-4-5

i/c

1000 V_p

500 V_p

1.2/50 µs

12 Ω

2 Ω

5 pos. and 5 neg.

surges per

coupling mode

yes

A ⁴

+i/–i

Conducted

disturbances

IEC/EN

61000-4-6

i, o, signal wires 140 dBµV

AM 80%

1 kHz

150 Ω

0.15-80 MHz

(10 VAC)

¹For related and previous standards see: Technical Information: Safety & EMC. ²i = input, o = output, c = case.

³A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.

⁴Option L neccessary. ⁵With option C, manual reset might be necessary.

REV. OCT 17, 2003

Page 7 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Electromagnetic Emission

For emission levels refer to: Electrical Input Data.

[dBµV]

07008

EN 55022 A

EN 55022 B

MHz

Fig. 11

Typical disturbance voltage (quasi-peak) at the input ac-

cording to EN 55011/22 measured at V_{i nom}and I_{o nom}

Immunity to Environmental Conditions

Table 6: Mechanical stress

Test Method

Standard

Test Conditions

Temperature:

Status

Damp heat

steady state

IEC/DIN IEC 60068-2-3

MIL-STD-810D section 507.2 Relative humidity:

Duration:

40 ^±2°C

56 days

Unit not

operating

93 ^+2/-3

Shock

(half-sinusoidal)

IEC/EN/DIN EN 60068-2-27

MIL-STD-810D section 516.3 Bump duration:

Number of bumps:

Acceleration amplitude:

100 g_n= 981 m/s²

6 ms

18 (3 each direction)

Unit

operating

Bump

(half-sinusoidal)

IEC/EN/DIN EN 60068-2-29

MIL-STD-810D section 516.3 Bump duration:

Number of bumps:

Acceleration amplitude:

40 g_n= 392 m/s²

6 ms

6000 (1000 each direction)

Unit

operating

Vibration

IEC/EN/DIN EN 60068-2-6

MIL-STD-810D section 514.3

Acceleration amplitude:

0.35 mm (10-60 Hz)

5 g_n= 49 m/s²(60-2000 Hz)

10-2000 Hz

Unit

operating

(sinusoidal)

Frequency (1 Oct/min):

Test duration:

7.5 h (2.5 h each axis)

Fda Random vibration IEC 60068-2-35

Acceleration spectral density: 0.05 g²/Hz

Unit

wide band

Reproducibility

high

DIN 40046 part 23

Frequency band:

Acceleration magnitude:

Test duration:

20-500 Hz

4.9 g_rms

3 h (1 h each axis)

operating

Salt mist, cyclic

(sodium chloride

NaCl solution)

IEC/EN/DIN IEC 60068-2-52 Concentration:

5% (30°C)

Unit not

operating

Duration:

Storage:

Storage duration:

Number of cycles:

2 h per cycle

40°C, 93% rel. humidity

22 h per cycle

REV. OCT 17, 2003

Page 8 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Table 7: Temperature specifications, valid for air pressure of 800 – 1200 hPa (800 – 1200 mbar)

Temperature

Standard -7

Option -9

Characteristics

Conditions

Operational ¹

min

max

min

–40

–55

max

Unit

T_A

T_C

T_S

Ambient temperature

–25

–40

°C

Case temperature

Storage temperature

Non operational

100

¹See: Thermal Considerations

Table 8: MTBF and device hours

MTBF

Ground Benign

T_C= 40°C

Ground Fixed

Ground Mobile

T_C= 50°C

Device Hours ¹

MTBF acc. to MIL-HDBK-217F

T_C= 40°C

207 000 h

T_C= 70°C

96 000 h

624 000

46 000 h

13 000 000 h

¹Statistical values, based on an average of 4300 working hours per year and in general field use

Mechanical Data

Dimensions in mm. Tolerances ±0.3 mm unless otherwise specified.

European

Projection

09013

Yellow output voltage

LED indicator

Potentiometer

(option P)

–

Vo+

106 ^±1

101(for M3 mounting screws)

5 ^±0.5

Measuring point of

case temperature T_C

Fig. 12

Case B02, weight 230 g

Aluminium,

(4.7)

10 10 (13.5)

10.6

12.5 ^±1

black finish and self cooling

REV. OCT 17, 2003

Page 9 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

The units have been evaluated for:

• Building in,

Safety and Installation Instructions

• Operational insulation from input to output and input/out-

put to case,

• The use in an overvoltage category II environment,

• The use in a pollution degree 2 environment.

Installation Instruction

Installation of the switching regulators must strictly follow

the national safety regulations in compliance with the enclo-

sure, mounting, creepage, clearance, casualty, markings

and segregation requirements of the end-use application.

The switching regulators are subject to manufacturing sur-

veillance in accordance with the above mentioned UL and

CSA and with ISO 9001 standards.

Check for hazardous voltages before altering any connec-

tions. Connections can be made using fast-on or soldering

technique.

Isolation

The input and the output circuit are not separated, i.e. the

negative path is internally interconnected!

Electric strength test voltage between input interconnected

with output and case: 750 VDC, 1 s.

The units should be connected to a secondary circuit.

Do not open the module.

This test is performed as factory test in accordance with

IEC/EN 60950 and UL 1950 and should not be repeated in

the field. Power-One will not honour any guarantee claims

resulting from electric strength field tests.

Ensure that a unit failure (e.g. by an internal short-circuit)

does not result in a hazardous condition. See also: Safety

of operator accessible output circuit.

Safety of Operator Accessible Output Circuit

Cleaning Agents

If the output circuit of a switching regulator is operator-ac-

cessible, it shall be an SELV circuit according to IEC/EN

60950 related safety standards

In order to avoid possible damage, any penetration of

cleaning fluids is to be prevented, since the power supplies

are not hermetically sealed.

The following table shows some possible installation con-

figurations, compliance with which causes the output circuit

of the switching regulator to be an SELV circuit according to

IEC/EN 60950 up to a nominal output voltage of 30 V, or

48 V if option C is fitted.

Protection Degree

The protection degree is IP 20.

Standards and Approvals

However, it is the sole responsibility of the installer or user

to assure the compliance with the relevant and applicable

safety regulations.

All switching regulators are UL recognized according to UL

1950, UL 1012 and EN 60950 and UL recognized for

Canada to CAN/CSA C22.2 No. 234-M90.

More information is given in: Technical Information: Safety

& EMC.

REV. OCT 17, 2003

Page 10 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Table 9: Insulation concept leading to an SELV output circuit

Conditions Front end

Switching regulator

Result

Supply

voltage

Minimum required grade Maximum Minimum required safety Measures to achieve the

Safety status of

the switching

regulator output

circuit

of isolation, to be provided DC output status of the front end

specified safety status of the

output circuit

by the AC-DC front end,

voltage

output circuit

including mains supplied from the

battery charger

front end¹

≤60 V

Battery

Double or Reinforced

SELV circuit

None

SELV circuit

supply,

>60 V

Earthed hazardous voltage Input fuse ³and non

Earthed SELV

circuit

considered

as secon-

dary circuit

secondary circuit

Unearthed hazardous

voltage secondary circuit ⁵non accessible case ⁵

accessible case

Input fuse ³and unearthed,

Unearthed SELV

circuit

Hazardous voltage

secondary circuit

Input fuse ³and earthed output Earthed SELV

circuit ⁴and non accessible

case ⁵

circuit

Mains

-250 V AC

Basic

≤60 V

Earthed SELV circuit ⁴

ELV circuit

None

Input fuse ³and earthed output

circuit ⁴and non accessbile

case ⁵

>60 V

Hazardous voltage

secondary circuit

Double or reinforced

≤60 V

SELV circuit

None

SELV circuit

>60 V

Double or reinforced insu- Input fuse ³and unearthed

lated unearthed hazardous and non accessible case ⁵

voltage secondary circuit ⁵

Unearthed SELV

circuit

¹The front end output voltage should match the specified input voltage range of the switching regulator.

²The conductor to the Gi– terminal of the switching regulator has to be connected to earth by the installer according to the relevant

safety standard, e.g. IEC/EN 60950.

³The installer shall provide an approved fuse (slow blow type with the lowest current rating suitable for the application, max. 12.5 A) in

a non-earthed input conductor directly at the input of the switching regulator. If Vo+ is earthed, insert the fuse in the Gi- line. For UL’s

purpose, the fuse needs to be UL-listed. If option C is fitted, a suitable fuse is already built-in in the Vi+ line.

⁴The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950.

⁵Has to be insulated from earth by double or reinforced insulation according to the relevant safety standard, based on the maximum

output voltage from the front end.

Description of Options

-9 Extended Temperature Range

be achieved by insertion of a capacitor across the input

(e.g. plastic foil between Vi+ and Gi–).

The operational ambient temperature range is extended to

T_A= –40 to 71°C. (T_C= –40 to 95°C, T_S= –55 to 100°C.)

The input impedance of the switching regulator at 120 kHz

is about 17 Ω. The harmonics are small in comparison with

the fundamental wave. See also Electrical Input Data: RFI.

Potentiometer

Option P excludes the R-function. The output voltage V_o

can be adjusted with screwdriver in the range

92 - 108% V_{o nom}

With option L, the maximum permissible additionally su-

perimposed ripple u_iof the input voltage (rectifier mode) at

a specified input frequency f_ihas the following values:

However, the minimum differential voltage DV_{i o min}be-

tween input and output voltages as specified in Electrical

Input Data should be maintained.

Units with max input voltage 40 V:

u_{i max}= 12 V_ppat 100 Hz or V_pp= 1200 Hz/f_i• 1V

Units with max input voltage 80 V:

u_{i max}= 22 V_ppat 100 Hz or V_pp= 2200 Hz/f_i• 1V

Input Filter

Option L is recommended to reduce superimposed inter-

ference voltages and to prevent oscillations, if input lines

exceed approx. 5 m in total length. The fundamental wave

(approx. 120 kHz) of the reduced interference voltage be-

tween Vi+ and Gi– has, with an input line inductance of

5 µH, a maximum magnitude of 60 mVAC. A reduction can

REV. OCT 17, 2003

Page 11 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

Thyristor Crowbar

This option is recommended to protect the load against

power supply malfunction, but it is not designed to sink ex-

ternal currents.

Note: As a central overvoltage protection device, the crow-

bar is usually connected to the external load via distributed

inductance of the lines. For this reason, the overvoltage at

the load can temporarily exceed the trigger voltage V_{o c}.De-

pending on the application, further decentralized over-

voltage protection elements may have to be used addition-

ally. For further information see: Technical Information: Ap-

plication Notes.

A fixed-value monitoring circuit checks the output voltage

V_o. When the trigger voltage V_{o c}is reached, the thyristor

crowbar triggers and disables the output. It may be deacti-

vated by removal of the input voltage. In case of a switching

transistor defect, an internal fuse prevents excessive cur-

rent.

Table 10: Crowbar trigger levels

Characteristics

Conditions

5.1 V

12 V

15 V

24 V

36 V

Unit

min max

V_{i min}-V_{i max}

I_o= 0-I_{o nom}

T_{C min}-T_{C max}

V_{o c}Trigger voltage

5.8

6.8

1.5

13.5

16.5 19

1.5

40 45.5

1.5

t_s

Delay time

1.5

µs

Accessories

A variety of electrical and mechanical accessories are

available including:

– PCB-tags and isolation pads for easy and safe PCB-

mounting.

– Ring core chockes for ripple and interference reduction.

For more detailed information please refer to: Accessory

Products on the Power-One homepage.

NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support

systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the

respective divisional president of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change

depending on the date manufactured. Specifications are subject to change without notice.

REV. OCT 17, 2003

Page 12 of 13

PSB Series Extended Data Sheet

Positive Switching Regulator (Industrial)

EC Declaration of Conformity

Power-One AG

Ackerstrasse 56 CH-8610 Uster

declare under our sole responsibility that all PSx Series switching regulators carrying the

CE-mark are in conformity with the provisions of the Low Voltage Directive (LVD) 73/23/

EEC of the European Communities.

Conformity with the directive is presumed by conformity wih the following harmonized

standards:

• EN 61204: 1995 (= IEC 61204: 1993, modified)

Low-voltage power supply devices, d.c. output - Perfomance characteristics

and safety requirements

• EN 60950: 1992 + A1: 1993 + A2 (= IEC 950 second edition 1991 + A1: 1992 +

A2: 1993)

Safety of information technology equipment

The installation instructions given in the corresponding data sheet describe correct installation

leading to the presumption of conformity of the end product with the LVD. All PSx Series

Switching Regulators are components, intended exclusively for inclusion within other

equipment by an industrial assembly operation or by professional installers. They must not

be operated as stand alone products.

Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC (EMC

Directive) needs not to be declared. Nevertheless, guidance is provided in most product

application notes on how conformity of the end product with the indicated EMC standards

under the responsibility of the installer can be achieved, from which conformity with the

EMC directive can be presumed.

Uster, 14 Oct. 2003

Power-One AG

Rolf Baldauf

Johann Milavec

Director Engineering

Director Projects and IP

REV. OCT 17, 2003

Page 13 of 13

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