PT6915 TI | Alldatasheet

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For technical support and more information, see inside back cover or visit www.ti.com/powertrends PT6910 Series Standard Application

Ordering Information

+5V Input +3.3V Input V out PT6911 /G6F PT6914 /G71 = –2.0V PT6912 /G6F PT6915 /G71 = –5.2V PT6913 /G71 = –1.5V C in = Required 330µF electrolytic C out = Required 330µF electrolytic

  • Single-Device: +5V/3.3V input
  • Remote Sense
  • +5V & +3.3V Input Voltage
  • Adjustable Output Voltage
  • 23-pin Space-Saving Package
  • Solderable Copper Case The PT6910 series is a series of high performance 12 watt, plus to minus voltage convertors that are designed to power the latest ECL (–5.2V) and Pin Function

1 Do not connect

8 Remote Sense GND

9 GND

10 GND

11 GND

12 GND

13 GND

14 GND

15 GND

16 V out

17 V out

18 V out

19 V out

20 V out

21 V out

22 Remote Sense Vout

23 Do not connect

GaAs (-2.0V) ICs from an existing +5.0V or +3.3V source. These regulators are similar to the popular PT6900 series with the added feature of Power T rends’ unique solderable copper case. A 330µF electrolytic capacitor is required on both the input and output for proper operation. Also n ote that this product does not include short- circuit protection. (For dimensions and PC board layout, see Package Styles 1300 and 1310.) CoutCin PT6900 16-21 9-15 3-7 V ADJ -VOUT GNDGND +VIN Remote Sense Remote Sense PT Series Suffix (PT1234X) Case/Pin Configuration Vertical Through-Hole N Horizontal Through-HoleA Horizontal Surface Mount C PT6910 Specifications Characteristics PT6910 SERIES (Ta= 25°C unless noted) Sym bols Conditions Min Typ Max Units Output Current I o Ta = +25°C, natural convection Input Voltage Range 0.1A ≤ Io ≤ Imax PT6911 PT6912/PT6913 4.5 — 5.5 PT6914/PT6915 3.1 — 3.6 V Output Voltage T olerance ∆Vo Nominal Vin, Io = Imax Vo – 0.05 — V o + 0.05 V0°C ≤ Ta ≤ +60°C Output Adjust Range V o Pin 14 to Vo or GND V o = –2.0V –1.4 — –4.4 Line Regulation Reg line Over Vin range, Io =Imax — ±0.5 ±1.0 % Load Regulation Reg load Vin =Vnom, 0.1 ≤ Io ≤ Imax — ±0.5 ±1.0 % Vo Ripple/Noise V n Vin = Vnom, Io =Imax Vo = –1.5V / –2.0V — 40 — mVVo = –5.2V — 50 — T ransient Response t tr Io step between 0.5xImax and Imax — 200 — µSec with Cout = 330µF V os Vo over/undershoot — 200 — mV Efficiency η Vin =+5V , Io =0.5xImax Vo = –1.5V — 65 — Vo = –5.2V — 77 — Vin = +3.3V , Io =0.5xImax Vo = –2.0V — 67 — %Vo = –5.2V — 75 — Switching Frequency ƒ o Over Vin and Io ranges 500 — 600 kHz Absolute Maximum T a 0 — +85 (2) °C Operating T emperature Range Recommended Operating T a Over Vin Range 0 — +60 °CT emperature Range Storage T emperature T s -40 — +125 °C Weight — Vertical/Horizontal — 26 — grams Notes:(1) ISR-will operate down to no load with reduced specifications. (2) See Safe Operating Area curves, or consult the factory for the appropriate derating. Patent pending on package assembly 12 Watt 5V/3.3V Input Plus to Minus Voltage Converter SLTS113 (Revised 11/30/2000)

For technical support and more information, see inside back cover or visit www.ti.com/powertrends T ypical Characteristics 3.3V Input Voltage (See Note A) Efficiency vs Output Current Efficiency vs Output Current 5.0V Input Voltage (See Note A) Ripple vs Output Current Ripple vs Output Current Power Dissipation vs Output Current Note A: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter. Note B: SOA curves represent the condition at which internal com-ponents are at or below manufacturere’s maximum operating temperature. Power Dissipation vs Output Current PT6911 Safe Operating Area, Vin =5.0V (See Note B) PT6912 Safe Operating Area, Vin =5.0V (See Note B) PT6910 Series 12 Watt 5V/3.3V Input Plus to Minus Voltage Converter 0123456 Iout (A) Efficiency - % PT6912 PT6911 PT6913 0123456 Iout (A) Pd - Watts PT6912 PT6911 PT6913 0123456 Iout (A) Ripple - mV PT6912 PT6911 PT6913 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow 012345 Iout (A) Efficiency - % PT6915 PT6914 012345 Iout (A) Pd - Watts PT6915 PT6914 012345 Iout (A) Ripple - mV PT6915 PT6914 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow

For technical support and more information, see inside back cover or visit www.ti.com/powertrends PT6900/6910 Series Adjusting the Output Voltage of the PT6900/PT6910 Positive to Negative Converter Series The negative output voltage of the Power T rends PT6900 Series ISRs may be adjusted higher or lower than the factory trimmed pre-set voltage with the addition of a single external resistor. T able 1 gives the allowable adjustment range for each model in the series as V a (min) and Va (max). Adjust Up: An increase in the output voltage is obtained by adding a resistor R2, between pin 2 (Vo adjust) and pin 8 (Remote Sense GND). Adjust Down: Add a resistor (R1), between pin 2 (Vo ad- just) and pin 22 (Remote Sense Vo). Refer to Figure 1 and T able 2 for both the placement and value of the required resistor, either (R1) or R2 as appropriate. Notes: 1. Only a single 1% resistor is required in either the (R1) or R2 location. Do not use (R1) and R2 simultaneously. Place the resistor as close to the ISR as possible. 2. Never connect capacitors from Vo adjust to either GND, Vout, or the Sense pins. Any capacitance added to the Vo adjust pin will affect the stability of the ISR. 3. If the sense pins are not being used, the resistors (R1) and R2 can be connected to Vout and GND respectively. 4. An increase in the output voltage must be accompanied by a corresponding reduction in the maximum output current. The revised maximum output current must be reduced to the equivalent of 12Watts. i.e. Iout (max) = 12 Adc,Va where Va is the adjusted output voltage. Figure 1 The respective values of (R1) [adjust down], and R2 [ad- just up], can also be calculated using the following formulas. (R1) = 24.9 (Va – Vr) – Rs kΩ (Vo – Va) R2 = 24.9 Vr – Rs kΩ (Va – Vo) Where: Vo = Original output voltage Va = Adjusted output voltage Vr = Reference voltage in T able 1 Rs = The resistance given in T able 1 T able1 PT6900/PT6910 ADJUSTMENT RANGE AND FORMULA PARAMETERS Series Pt # 5.0V Bus PT 6903/13 PT6901/11 PT6902/12 3.3V Bus PT 6904/14 PT6905/15 Vo (nom) -1.5V -2.0V -5.2V Va (min) -1.2V -1.4V -2.7V Va (max) -3.4V -4.5V -6.5V Rs (kΩΩΩΩΩ ) 12.7 10.0 17.4 C in C out+ (Up) (R1) (Down) COMCOM Vout(-)+Vin PT6900/10 16 - 21 29 - 15 3 - 7 +Vin -Vo GND Vo(adj) Vo(sense) GND(sense) L O A D

For technical support and more information, see inside back cover or visit www.ti.com/powertrends Application Notes continued PT6900/PT6910 ADJUSTMENT RESISTOR VALUES Series Pt # 5.0V Bus PT 6903/13 PT6901/11 PT6902/12 3.3V Bus P T6904/14 PT6905/15 Vo (nom) –1.5Vdc –2.0Vdc –5.2Vdc Va (req’d) –1.2 (3.9)kΩ –1.3 (24.7)kΩ –1.5 (14.9)kΩ –2.0 37.1k Ω –2.1 28.8k Ω 239.0kΩ –2.2 22.9k Ω 115.0kΩ –2.3 18.4k Ω 73.0kΩ –2.4 15.0k Ω 52.3kΩ –2.5 12.2k Ω 39.8kΩ –2.6 9.9k Ω 31.5kΩ Series Pt # 5.0V Bus P T6901/11 PT6902/12 3.3V Bus P T6904/14 PT6905/15 Vo (nom) –2.0Vdc –5.2Vdc Va (req’d) –4.6 (135.0)kΩ –4.7 (171.0)kΩ –4.8 (224.0)kΩ –4.9 (313.0)kΩ –5.0 (491.0)kΩ –5.1 (1020.0)kΩ –5.2 –5.3 212.0k Ω –5.4 97.1k Ω –5.5 59.0k Ω –5.6 39.9k Ω –5.7 28.4k Ω –5.8 20.8k Ω –5.9 15.3k Ω –6.0 11.2k Ω –6.1 8.1k Ω –6.2 5.5k Ω –6.3 3.4k Ω –6.4 1.7k Ω –6.5 0.2k Ω T able 2 R1 = (Blue) R2 = Black PT6900/6910 Series

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