TRACO TSR 1-48120WI Datasheet

Non-Isolated DC/DC Converter (POL)

TSR 1WI Series, 1 A

•

Ultra wide 8:1 input voltage range:
9-72 VDC

•

Covers a majority of standard bus- and
battery voltages

•

Up to 93% efficiency - No heatsink
required

•

Pin compatible with LMxx linear
regulators (SIP-3)

•

Operating temperature range

-40 to +80°C

•

Low standby current

•

Excellent line/load regulation

•

Protection against short circuit,
overvoltage and overtemperature

•

3-year product warranty

The TSR 1WI is a non-isolated POL converter series with an ultra wide 8:1 input
voltage range which comes in a standard SIP-3 package. Covering the majority
of standard bus- and battery voltages this POL converter is a versatile solution
for many applications in distributed power systems where different input volt­ages have to be handled. Being able to use the same converter in many differ­ent situations effectively reduces the bill of material (BOM) of a given applica­tion. A high efficiency of up to 93% allows for an operating temperature range
of -40 to +80°C (up to 50°C without derating) and makes them excellent
drop-in replacements for less efficient LMxx linear regulators. With 0.6A max.
output current and standard features such as low standby current, precise reg­ulation and protection against short circuit, overvoltage and overload the TSR
1WI is suitable for many battery and distributed power applications.

Models

Order Code

Output Current

max.

Input Voltage

Range

Output Voltage

nom.

Efficiency

typ.

TSR 1-4833WI

1'000 mA

9 - 72 VDC (48 VDC nom.)

3.3 VDC

83 % (at 24 Vin)

TSR 1-4850WI

5 VDC

87 % (at 24 Vin)

TSR 1-4865WI

6.5 VDC

88 % (at 24 Vin)

TSR 1-4890WI

14 - 72 VDC (48 VDC nom.)

9 VDC

90 % (at 24 Vin)

TSR 1-48120WI

17 - 72 VDC (48 VDC nom.)

12 VDC

93 % (at 24 Vin)

TSR 1-48150WI

21 - 72 VDC (48 VDC nom.)

15 VDC

93 % (at 24 Vin)

TSR 1-48240WI

700 mA

33 - 72 VDC (48 VDC nom.)

24 VDC

92 % (at 48 Vin)

Options

on demand

(backorder with MOQ

non stocking item)

- Horizontal mounting (see outline dimensions)
Note

- It is recommended to use an external input filter, please refer to application note: www.tracopower.com/overview/tsr1wi

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February 13, 2020

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Input Current

- At no load

12 mA typ.

Recommended Input Fuse

3.3 Vout models:

1'000 mA (slow blow)

5 Vout models:

1'250 mA (slow blow)

6.5 Vout models:

1'600 mA (slow blow)

9 Vout models:

1'600 mA (slow blow)

12 Vout models:

1'600 mA (slow blow)

15 Vout models:

1'600 mA (slow blow)

24 Vout models:

1'250 mA (slow blow)

Input Filter

See application note:

www.tracopower.com/overview/tsr1wi

(Recommended external input filter proposal)

Input Specifications

Voltage Set Accuracy

±2% max.

Regulation

- Input Variation (Vmin - Vmax)

0.5% max.

- Load Variation (0 - 100%)

0.6% max.

Ripple and Noise

(20 MHz Bandwidth)

3.3 Vout models:

50 mVp-p typ. (with 10 µF X7R)

5 Vout models:

50 mVp-p typ. (with 10 µF X7R)

6.5 Vout models:

50 mVp-p typ. (with 10 µF X7R)

9 Vout models:

50 mVp-p typ. (with 10 µF X7R)

12 Vout models:

50 mVp-p typ. (with 10 µF X7R)

15 Vout models:

50 mVp-p typ. (with 10 µF X7R)

24 Vout models:

75 mVp-p typ. (with 4.7 µF X7R)

Capacitive Load

3.3 Vout models:

2'400 µF max.

5 Vout models:

1'580 µF max.

6.5 Vout models:

1'200 µF max.

9 Vout models:

880 µF max.

12 Vout models:

660 µF max.

15 Vout models:

530 µF max.

24 Vout models:

330 µF max.

Minimum Load

Not required

Temperature Coefficient

±0.02 %/K max.

Start-up Time

25 ms typ.

Short Circuit Protection

Continuous, Automatic recovery

Output Current Limitation

180% typ. of Iout max.

Transient Response

- Peak Variation

125 mV typ. / 250 mV max. (50% Load Step)
(24 Vout model, with external 4.7 µF X7R)
90 mV typ. / 180 mV max. (50% Load Step)
(other models, with external 10 µF X7R)

- Response Time

200 µs typ. / 250 µs max. (50% Load Step)

Output Specifications

EMI Emissions

- Conducted Emissions

EN 55032 class A (with external filter)
EN 55032 class B (with external filter)

- Radiated Emissions

EN 55032 class A (with external filter)
EN 55032 class B (with external filter)

External filter proposal:

www.tracopower.com/overview/tsr1wi

EMC Specifications

Relative Humidity

95% max. (non condensing)

Temperature Ranges

- Operating Temperature

–40°C to +80°C

- Case Temperature

+105°C max.

- Storage Temperature

–55°C to +125°C

Power Derating

- High Temperature

See application note:

www.tracopower.com/overview/tsr1wi

General Specifications

TSR 1WI Series

All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.

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February 13, 2020

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Over Temperature
Protection Switch Off

- Protection Mode

165°C typ. (Automatic recovery)

- Measurement Point

Internal IC temperature

Cooling System

Natural convection (20 LFM)

Switching Frequency

143 - 238 kHz (PWM) (3.3 Vout model)
150 - 250 kHz (PWM) (5 Vout model)
188 - 313 kHz (PWM) (6.5 Vout model)
225 - 375 kHz (PWM) (9 Vout model)
263 - 438 kHz (PWM) (12 Vout model)
300 - 500 kHz (PWM) (15 Vout model)
413 - 688 kHz (PWM) (24 Vout model)

Insulation System

Non-isolated

Reliability

- Calculated MTBF

8'215'000 h (MIL-HDBK-217F, ground benign)

Environment

- Vibration

MIL-STD-810F

- Mechanical Shock

MIL-STD-810F

- Thermal Shock

MIL-STD-810F

Housing Material

Metal

Potting Material

Epoxy (UL 94 V-0 rated)

Pin Material

Brass

Pin Foundation Plating

Nickel (1 - 2 µm)

Pin Surface Plating

Tin (3 - 5 µm), matte

Connection Type

THD (Through-Hole Device)

Weight

5.5 g

Thermal Impedance

35 K/W

Environmental Compliance

- Reach

www.tracopower.com/info/reach-declaration.pdf

- RoHS

www.tracopower.com/info/rohs-declaration.pdf

Supporting Documents

Overview Link (for additional Documents)

www.tracopower.com/overview/tsr1wi

TSR 1WI Series

All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.

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February 13, 2020

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Outline Dimensions

Standard: Vertical mounting

Optional: Horizontal mounting

TSR 1WI Series

1 2 3

0.6 (0.023)

3.21 (0.126)

2.54 (0.100)

5.08 (0.200)

11.50 (0.453)

1.1 (0.04)

6.3 (0.25)

17.5 (0.69)

4.1 (0.16)

3.5 (0.14)

Bottom View

12.1 (0.48)

0.50 x 0.25

(0.020 x 0.010)

A

3.2 (0.13)

8.6 (0.34)

4 5

2.0 (0.08)

A

0.50 (0.020)

Dimensions in mm (inch)
Tolerances: ±0.5 (±0.02)
Pin pich tolerances: ±0.25 (±0.01)

Pinout

1

+Vin

2

GND

3

+Vout

4

Case pin

5

Case pin

1 2 3

4

4

Dimensions in mm (inch)
Tolerances: x.xx ±0.5 (±0.02)
Tolerances: x.xxx ±0.25 (±0.01)
Pin dimension tolerances: ±0.10 (±0.04)

12.1 (0.48)

3.2 (0.13)

4.1 (0.16) 8.6 (0.34)

1.5 (0.06)

2.0 (0.08)

2.54 (0.100)

3.51 (0.138)

5.08 (0.200)

0.4 (0.02)

0.5×0.25 (0.020×0.010)

17.5 (0.69)

19.2 (0.76)

3.5 (0.14)

Pinout

1

+Vin

2

GND

3

+Vout

4

Case pin

© Copyright 2020 Traco Electronic AG Specifications can be changed without notice.

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Rev. February 13, 2020

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