THL3WI Datasheet, PDF (2/3 Pages) Touchstone Semiconductor Inc – DC/DC Converters

DC/DC Converters
THL 3WI(SM) Series 3 Watt
Input Specifications
Input current at no load (nominal input voltage)

24 Vin models: 30 mA typ.
48 Vin models: 20 mA typ.
Input current at full load (nominal input voltage)
24 Vin; 3.3 VDC model:
24 Vin other models:
48 Vin; 3.3 VDC model:
48 Vin other models:
110 mA typ.
160 mA typ.
55 mA typ.
80 mA typ.
Surge voltage (1 sec. max.)

24 Vin models: 50 V max.
48 Vin models: 100 V max.
Conducted noise EN 55022 level A, FCC part 15, level A without
external components
Recommended input fuse (slow blow)

24 V models: 1500 mA
48 V models: 800 mA
Output Specifications
Voltage set accuracy ±2 % max
Regulation
– Input variation Vin min. to Vin max. 1.0 % max.
– Load variation 15 – 100 % 1.0 % max.
Minimum load 15 % of rated max current (operation at lower
load condition is safe but a higher output ripple
will be experienced)
Temperature coefficient ±0.02 %/K
Ripple and noise (20 MHz bandwidth) 60 mVp-p typ.
Transient response setting time (25 % load step change) 300 µs typ.
Short circuit protection indefinite, automatic recovery
Capacitive load
3.3 & 5 VDC models: 220 µF max.

all other models: 47 µF max.
General Specifications
Temperature
– Operating (natural convection cooling 20 LFM) –40°C to +85°C
– Storage –40°C to +125°C
– Case +105°C max.
Load derating (natural convection cooling 20 LFM)
DIP models: 2.5 %/K above +65°C
SMD 3.3 & 5.0 VDC models: 2.2 %/K above +55°C
SMD other models: 2.5 %/K above +60°C
Humidity (non condensing) 95 %
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >300‘000 h
Isolation voltage (60 sec.) – Input/Output 1’500 VDC
Isolation capacitance
– Input/Output 500 pF max.
Isolation resistance
– Input/Output (500 VDC) >1 GOhm
Safety standard (designed to meet) IEC 60950-1, UL 60950-1
Safety approvals
– CB test certificate according IEC 60950-1 www.tracopower.com/products/thl3wi-cb.pdf
– CSA certificate for UL/cUL 60950-1 www.tracopower.com/products/thl3wi-csa.pdf
Switching frequency 350 kHz
Altitude during operation 5‘000 m max. (16‘400 ft) approved
Remote On/Off
– On: 2.5 to 5.5 VDC or open circuit
– Off: –0.7 to 0.8 VDC
– Off stand by input current 5 mA max.
Environmental compliance – Reach www.tracopower.com/products/thl3wi-reach.pdf
– RoHS RoHS directive 2011/65/EU
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
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