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Technical content

Features

  • Dual Complimentary Outputs
  • Wide Input Voltage: 38V to 75V
  • 1,500 VDC Isolation
  • 9 Pin DIP Package
  • Low-Profile (8mm)
  • Pin-compatible with PT4300 Series
  • No External Components Required
  • Safety Approvals —Pending

Ordering Information

PT4311/G71= ±5V/1.2A PT4313/G71= ±12V/0.5A 6-W Low-Profile Dual-Output Isolated DC-DC Converter SLTS146A (Revised 7/20/2001) PT4310 181 +Vin –Vin Remote On/Off # +Vout –Vout N/C COM N/C ±Vo Adjust # # For more information on the Remote On/Off control and output voltage adustment, refer to the application notes.

For technical support and more information, see inside back cover or visit www.ti.com PT4310 Series — 48V 6-W Low-Profile Dual-Output Isolated DC-DC Converter Specifications (Unless otherwise stated, Ta =25°C, Vin =53V, Cout =0µF, and Io1 = Io2 =Iotyp) PT4310 SERIES Characteristic Symbol Conditions Min Typ Max Units Ouput Power Po (tot) ——6 W Output Current Io 1, Io2 (2) Over Vin range Io1 + Io2 (2) Total, both outputs PT4311 0.4 — 1.2 APT4313 0.1 — 0.5 Input Voltage Range V in Over Io(tot) range 38.0 — 75.0 V Set Point Voltage Vo 1, Vo2 (2) PT4311 4.95 5.05 5.15 V PT4313 11.85 12 12.15 mV Temperature Variation Reg temp –40° >Ta > +85°C PT4311 — ±0.5 — %VoPT4313 — ±1 — Line Regulation Reg line Over Vin range — ±25 ±40 mV Total Output Voltage Variation ∆Votot Over Vin range and load limits PT4311 — ±5 — %Vo–40° >Ta > +85°C PT4313 — ±4 — No-load Output Voltage Vo (no-load) Io1 =Io2 = 0 PT4311 — 5.4 5.9 VPT4313 — 12.7 17 Efficiency η PT4311 — 82 — %PT4313 — 85 — Vo Ripple (pk-pk) Vr 20MHz bandwidth PT4311 — 50 100 mVppPT4313 — 90 150 Transient Response t tr 20% ≤ Io2 ≤ 75%Iotyp, with 25%load step — 200 — µs ∆Vtr Vo over/undershoot PT4311 — ±75 — mVPT4313 — ±200 — Current Limit Threshold I Lim Over Vin range, ∆Vo =10%Vonom— 2.5 — A Short Circuit Current I sc — 1.0 — A Inrush Current I ir On start-up — 0.5 — A tir — 1.0 — ms Switching Frequency ƒ o Over Vin range 400 — 520 kHz Under-Voltage Lockout UVLO — 36 — V Remote On/Off (Pin 11) V IH Referenced to –Vin (pin 17) 5.0 — Open (4) VInput Requirements V IL –0.1 — +1.0 IIL — –0.2 – mA Standby Input Current I in standby pins 11 & 17 connected — 10 — mA Internal Input Capacitance C in —1 —µ F External Output Capacitance C out Total across both outputs PT4311 0 — 120 (5) µFPT4313 0 — 47 (5) Isolation Voltage Input - output 1500 — — V Capacitance — 1100 — pF Resistance 1 0——M Ω Maximum Operating T a Over Vin range -40 — +85 (6) °C Temperature Range Storage Temperature T s — -40 — +125 °C Reliability MTBF Per Bellcore TR-332 4.0 — — 10 6 Hrs50% stress, Ta =40°C, ground benign Mechanical Shock — Per Mil-Std-883D, method 2002.3, — TBD — G’s 1mS, half-sine, mounted to a fixture Mechanical Vibration — Per Mil-Std-883D, method 2007.2, — TBD — G’s 20-2000Hz, soldered in a PC board Weight — — — 10 — grams Flammability — Materials meet UL 94V-0 Notes: (1) The adjustment of the output voltage for the PT4310 series is different than the PT4300 series. (2) V o1 & Vo2 may refer to +Vout and –Vout, or –Vout and +Vout respectively. The specification limits are quoted absolute. (3) The DC/DC converter will operate at no load with reduced specifications. See “No-load Output Voltage” specification. (4) The Remote On/Off (pin 11) has an internal pull-up. If the pin is left open the module will operate when input power is appl ied. Refer to the application notes for interface considerations. (5) Output capacitors are not required for proper operation. If added, Oscon® or tantalum types are recommended for operation be low 0°C ambient. (6) See Safe Operating Area curves or contact the factory for the appropriate derating.

For technical support and more information, see inside back cover or visit www.ti.com Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter. Note B: Drift with temperature is normalized to the static output voltage measured at 25°C. PT4311 (±5V) Characteristic Data (See Note A) Typical Characteristics PT4313 (±12V) Characteristic Data (See Note A) Efficiency vs. Total Output Current ( Io 1 + Io2 ) Output Ripple vs. Load ( Io 1 or Io2 ) Power Dissipation vs. Total Output Current ( Io 1 + Io2 ) Io1 + Io2 (A ) Efficiency - % 38V 53V 75V V IN Efficiency vs. Total Output Current ( Io 1 + Io2 ) Output Ripple vs. Load ( Io 1 or Io2 ) Power Dissipation vs Output Current ( Io 1 + Io2 ) 0.0 0.4 0.8 1.2 1.6 Io1 + Io2 (A) Pd - Watts 75V 53V 38V VIN Io1 + Io2 (A) Efficiency - % 38V 53V 75V V N 100 120 Iout (A ) Ripple - mV 38V 53V 75V VIN 0.5 1.5 Io1 + Io2 (A) Pd - Watts 75V 53V 38V VIN Temperature Drift; Io2 =0.2A (See Note B) PT4310 Series — 48V 6-W Low-Profile Dual-Output Isolated DC-DC Converter 100 0 0.2 0.4 0.6 0.8 1 Iout (A ) Ripple - mV 38V 53V 75V VIN Temperature Drift; Io2 =0.1A (See Note B) -150 -100 -50 100 - 5 0 - 2 50 2 55 07 5 1 0 0 Ta (°C) ∆Vo 1 (mV) 0.4 0.3 0.2 0.1 Io1 (A) -50 -25 -50 -25 0 25 50 75 100 Ta (°C ) ∆Vo 1 (mV) 0.2 0.4 0.6 0.8 1.0 Io1 (A)

For technical support and more information, see inside back cover or visit www.ti.com Typcial CharacteristicsPT4310 Series — 48V 6-W Low-Profile Dual-Output Isolated DC-DC Converter Note A: The above characteristic data has been developed from actual products tested at 25°C and Vin =53V . This data is considered typi cal data for the converter. Note C: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating t emperatures. 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 I1 out (A ) Ambient Temperature (°C) 60LFM Nat conv Airflow 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 I1 out (A ) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow PT4313; Io1 =0 to 0.25A, Io 2 =0.25A Safe Operating Area Curves, Vin =38V–75V (See Note C) PT4313; Io1 =0 to 0.45A, Io 2 =0.05A Load Regulation, Vo 1 vs Io1 with Io2 =0.05A PT4313 (±12V) Characteristic Data (See Note A) Cross Regulation, Vo 1 vs Io2 with Io1 =0.05A -4.0% -2.0% 0.0% 2.0% 4.0% Iout (A) ∆Vout (%) PT4311; Io1 =0 to 1.0A, Io 2 =0.2A Safe Operating Area Curves, Vin =38V–75V (See Note C) Load Regulation, Vo1 vs Io1 with Io2 =0.2A PT4311 (±5V) Characteristic Data (See Note A) Cross Regulation, Vo1 vs Io2 with Io1 =0.2A PT4311; Io1 =0 to 0.6A, Io 2 =0.6A Io1 (A) Ambient Temperature (°C) 200LFM 120LFM Nat conv Airflow 0 0.2 0.4 0.6 0.8 1 Io1 (A) Ambient Temperature (°C) 200LFM 120LFM Nat conv Airflow -1.0% -0.5% 0.0% 0.5% 1.0% Iout (A) ∆Vout (%) -4.0% -2.0% 0.0% 2.0% 4.0% Iout (A) ∆Vout (%) -1.0% -0.5% 0.0% 0.5% 1.0% Iout (A) ∆Vout (%)

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