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Document overview
- PDF pages: 4
Technical content
Page 1
Non-Isolated DC/DC Converter (POL)
- Non-isolated converter for negative output
- Small size and low profile
- Pin compatible with LM79xx linear regulators
- No heatsink required
The new TSN 1 series step-down switching regulators are drop-in replacement
- High efficiency up to 96%
for inefficient LM79xx linear regulators. A high efficiency up to 96 % allows full load operation up to +70°C (+85°C with derating) ambient temperature with-
- Operation temp. range –40°C to +85°C
out the need of any heat-sink or forced air cooling. The TSN 1 switching regula-
- Protection against overload, short
tors provide other significant features over linear regulators, i.e. better output
circuit and over-temperature
accuracy (±2 %), lower standby current of ~2 mA and no requirement of external capacitors. They are suitable for negative output circuits. The high efficiency
- Fixed switching frequency
and low standby power consumption make these regulators an ideal solution
- Wide input range up to –32 VDC
for energy sensitive applications.
- Excellent line / load regulation
Models
| Order Code | Output Current max. | Input Voltage Range | Output Voltage nom. | Efficiency typ. |
|---|---|---|---|---|
| TSN 1-2450 TSN 1-2452 TSN 1-2460 TSN 1-2480 | 1'000 mA | –7 to –32 VDC (–12 VDC nom.) | –5 VDC –5.2 VDC –6 VDC –8 VDC | 88 % 89 % 90 % 92 % |
| –8 to –32 VDC (–12 VDC nom.) | ||||
| –10.5 to –32 VDC (–12 VDC nom.) | ||||
| TSN 1-2490 TSN 1-24120 TSN 1-24150 | –11.5 to –32 VDC (–24 VDC nom.) | –9 VDC –12 VDC –15 VDC | 93 % 94 % 95 % | |
| –15 to –32 VDC (–24 VDC nom.) | ||||
| –18 to –32 VDC (–24 VDC nom.) |
Options
Suffix A
- Optional models with angular pin version
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Input Specifications
Input Current
- At no load
Reflected Ripple Current Recommended Input Fuse
Input Filter
Output Specifications
Voltage Set Accuracy Regulation
- Input Variation (Vmin - Vmax) - Load Variation (10 - 100%)
Ripple and Noise (20 MHz Bandwidth)
Capacitive Load
Minimum Load Temperature Coefficient Start-up Time Short Circuit Protection Transient Response
- Response Deviation - Response Time
General Specifications
Relative Humidity Temperature Ranges
- Operating Temperature - Storage Temperature
Power Derating
- High Temperature
Over Temperature
- Protection Mode
Protection Switch Off
- Measurement Point
Cooling System Switching Frequency
Insulation System Reliability
- Calculated MTBF
Washing Process
-12 Vin models: 3 mA typ. -24 Vin models: 3 mA typ.
100 mAp-p typ.
-12 Vin models: 1'600 mA (slow blow) -24 Vin models: 1'600 mA (slow blow)
(The need of an external fuse has to be assessed in the final application.) Internal Capacitor
±2% max. 1% max. 0.6% max.
-24 Vin models: 75 mVp-p max. -5 Vout models: 50 mVp-p max. -5.2 Vout models: 50 mVp-p max. -6 Vout models: 75 mVp-p max. -8 Vout models: 75 mVp-p max. -5 Vout models: 1'600 µF max. -5.2 Vout models: 1'600 µF max. -6 Vout models: 1'000 µF max. -8 Vout models: 1'000 µF max. -9 Vout models: 1'000 µF max. -12 Vout models: 470 µF max. -15 Vout models: 470 µF max.
10 % of Iout max. ±0.015 %/K max. 15 ms max. Continuous, Automatic recovery 5% typ. / 7% max. (50% to 100% Load Step) 250 µs typ. / 350 µs max. (50% to 100% Load Step)
95% max. (non condensing) –40°C to +85°C –55°C to +125°C Depending on model
See application note: www.tracopower.com/overview/tsn1
165°C typ. (Latch off) Internal IC temperature Operation at lower load will not damage the converter, but it may not meet all specifications listed Natural convection (20 LFM) 323 - 437 kHz (PWM) (380 kHz typ.) (5 & 5.2 Vout models) 425 - 575 kHz (PWM) (500 kHz typ.) (other Vout models) Non-isolated 8'475'000 h (MIL-HDBK-217F, ground benign) Allowed (hermetical product)
See Cleaning Guideline:
www.tracopower.com/info/cleaning.pdf
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
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Environment
- Vibration - Mechanical Shock - Thermal Shock
Housing Material Potting Material Pin Material Pin Foundation Plating Pin Surface Plating Housing Type Mounting Type Connection Type Footprint Type Soldering Profile
Weight Environmental Compliance
- REACH Declaration
- RoHS Declaration
Supporting Documents
Overview Link (for additional Documents)
Outline Dimensions
Straight pin version
Dimensions in mm (inch) Tolerances: x.x ±0.5 (±0.02) x.xx ±0.25 (±0.01) Pin dimension tolerance ±0.004 (±0.1)
MIL-STD-810F MIL-STD-810F MIL-STD-810F Plastic (UL 94 V-0 rated) Silicone (UL 94 V-0 rated) Copper Nickel (2 - 3 µm) Tin (3 - 5 µm), matte Plastic Case PCB Mount THD (Through-Hole Device) SIP3 Wave Soldering 265°C / 10 s max. 3.1 g www.tracopower.com/info/reach-declaration.pdf REACH SVHC list compliant REACH Annex XVII compliant www.tracopower.com/info/rohs-declaration.pdf Exemptions: 7a, 7c-I (RoHS exemptions refer to the component concentration only, not to the overall concentration in the product (O5A rule). The SCIP number is provided on request.)
www.tracopower.com/overview/tsn1
| Pinout | |
| Pin | Single |
| 1 | GND |
| 2 | –Vin |
| 3 | –Vout |
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
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Angular pin version (suffix A)
Dimensions in mm (inch) Tolerances: x.x ±0.5 (±0.02) x.xx ±0.25 (±0.01) Pin dimension tolerance ±0.004 (±0.1)
© Copyright 2022 Traco Electronic AG
| Pinout | |
| Pin | Single |
| 1 | GND |
| 2 | –Vin |
| 3 | –Vout |
Specifications can be changed without notice.
Rev. November 30, 2022
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