PT6620 TI | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 5

Technical content

C1 = Required 330µF electrolytic C2 = Required 330µF electrolytic Q1= NFET-or Open Collector Gate

6 AMP 12V INPUT

INTEGRATED SWITCHING REGULATOR PT6620 Series PT6620 4,5,6 7,8,9,10 11,12,13V IN COM COM VOUT C 2 +C 1 STBY Q 1 REMOTE SENSE LOAD

Ordering Information

PT6621¤ = +3.3 Volts PT6622¤ = +1.5 Volts PT6623¤ = +2.5 Volts PT6624¤ = +3.6 Volts PT6625¤ = +5.0 Volts PT6626¤ = +9.0 Volts

  • Single Device: 6A Output
  • Input Voltage Range: 9V to 14V
  • Adjustable Output Voltage
  • 83% Efficiency
  • Remote Sense Capability
  • Standby Function
  • Over-T emperature Protection The PT6620 series is a new addition to Power T rends’ line of 12V bus Inte- grated Switching Regulators (ISRs). Designed for stand-alone operation in applications requiring as much as 6A of output current, the PT6620 is packaged in a 14-Pin SIP (Single In-line Package) and is available in a surface-mount con- figuration. Only two external capacitors are required for proper operation. Please note that this product does not include short circuit protection. PT Series Suffix (PT1234X) Case/Pin Heat Heat Spreader Configuration Spreader with Side T abs Vertical Through-Hole PR Horizontal Through-Hole DG Horizontal Surface Mount EB Pin Function

1 Remote Sense

2 Do Not Connect

3 STBY*- Standby

7 GND

8 GND

9 GND

10 GND

11 V out

12 V out

13 V out

14 V out Adjust

For assistance or to order, call (800) 531-5782 48 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com Note: Back surface of product is conducting metal Pkg Style 400 Specifications Characteristics PT6620 SERIES (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current I o Ta = 60°C, 200 LFM, pkg P 0.1* — 6.0** A Ta = 25°C, natural convection 0.1* — 6.5** A Input Voltage Range V in 0.1A ≤ Io ≤ 6.0A V o ≤ +5V +9 — +14 V +6V≤Vo≤+9V V o+3 — +14 V Output Voltage T olerance Δ Vo Vin = +12V , Io = 6.0A Ta = 0 to 60°C Vo-0.1 — V o+0.1 V Output Voltage Adjust Range V oadj Pin 14 to Vo or ground V o = +3.3V 2.3 — 4.5 Line Regulation Reg line +9V≤Vin≤+14V , Io = 6.0A — ±0.5 ±1.0 %V o Load Regulation Reg load Vin = +12V , 0.1≤ Io≤6.0A — ±0.5 ±1.0 %V o Vo Ripple/Noise V n Vin = +12V , Io = 6.0A V o < +6V — 50 — mVpp T ransient Response t tr Io step between 3.0A and 6.0A — 100 — µSec with C2 = 330µF V os Vo over/undershoot — 150 — mV Efficiency η Vin = +12V , Io = 3.0A V o= +3.3/3.6V — 84 — % * ISR will operate down to no load with reduced specifications. ** See SOA curves - Output power is limited to 30W maximum. Note: The PT6620 Series requires a 330µF(output) and 330µF(input) electrolytic capacitors for proper operation in all applications. Revised 2/5/99 Application Notes Mechanical Outline Product Selector Guide

For assistance or to order, call (800) 531-5782 49 12V Bus Products DATA SHEETS Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com PT6621P , 3.3V Note: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating t emperatures. Efficiency vs Output Current Efficiency (%) Output Current (A) Ambient Temperature (°C) Output Current (A) AirflowRecommended Maximum Operating Temperature Ambient Temperature (°C) Output Current (A) Airflow PT6620 Series @VPT6620 Series @VPT6620 Series @VPT6620 Series @VPT6620 Series @V in=+12Vin=+12Vin=+12Vin=+12Vin=+12V Recommended Maximum Operating Temperature Specifications (continued) Characteristics PT6620 SERIES (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units Switching Frequency ƒ o 9V ≤ Vin ≤ 14V 500 650 775 kHz 0.1A ≤ Io ≤ 6.0A PT6622 500 550 600 kHz Recommended Operating T a Free Air Convection (40-60 LFM) -40 — +65 °CT emperature Range Over V in and Io ranges with heat tab Absolute Maximum T a -40 — +85 °COperating T emperature Range Storage T emperature T s — -40 — +125 °C Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s Mechanical Vibration — Per Mil-STD-883D, Method 2007.2, — 7.5 — G’s20-2000 Hz, soldered in a PC board Weight — — — 14 — grams See SOA curves - Output power is limited to 30W maximum. Note: The PT6620 Series requires a 330µF(output) and 100µF(input) electrolytic capacitors for proper operation in all applications. PT6622P , 1.5VOutput Ripple vs Output Current Power Dissipation vs Output Current Output Current (A) Output Current (A) Ripple (mVpp)Pd (Watts) Safe Operating Area Curves @VSafe Operating Area Curves @VSafe Operating Area Curves @VSafe Operating Area Curves @VSafe Operating Area Curves @V in=+12Vin=+12Vin=+12Vin=+12Vin=+12V 01234567 Nat conv 60LFM 120LFM 200LFM 01234567 Nat conv 60LFM 120LFM 200LFM Ambient Temperature (°C) Output Current (A) Airflow Recommended Maximum Operating Temperature PT6625P , 5.0V 01234567 Nat conv 60LFM 120LFM 200LFM 100 0123456 PT6621 PT6622 PT6623 PT6625 PT6626 0123456 PT6621 PT6622 PT6623 PT6625 PT6626 0123456 PT6621 PT6622 PT6623 PT6625 PT6626

For assistance or to order, call (800) 531-5782 3Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com More Application Notes Adjusting the Output Voltage of the PT6620 7Amp12V Bus Converter Series The output voltage of the Power T rends PT6650 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 accordingly 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 14 (Vo adjust) and pins 7-10 (GND). Adjust Down: Add a resistor (R1), between pin 14 (Vo adjust) and pins 11-13 (Vout). 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. Use only a single 1% resistor in either the (R1) or R2 loca- tion. Place the resistor as close to the ISR as possible. 2. Never connect capacitors from V o adjust to either GND, Vout, or the Remote Sense pin. Any capacitance added to the Vo adjust pin will affect the stability of the ISR. 3. If the Remote Sense feature is being used, connecting the resistor (R1) between pin 14 (Vo adjust) and pin 1 (Remote Sense) can benefit load regulation. 4. The minimum input voltage required by the part is Vout + 3, or 9V , whichever is higher. 5. The maximum output current must be limited to the equiva- lent of 30Watts. i.e. Iout (max) = 12 Adc,Va where Va is the adjusted output voltage. Figure 1 C in 330 µ F + C out 330 µ F (R1) Adj Down Adjust Up Vo COMCOM Vin PT6620 11,12,13 147,8,9,10 4,5,6 Vin Vo GND Vo(adj)STBY Vsense L O A D The values of (R1) [adjust down], and R2 [adjust up], can also be calculated using the following formulae. Ro (Va – 1.25)(R1) = (Vo – Va) – Rs kΩ

1.25 Ro – Rs kΩR2 = Va - Vo

Where: V o = Original output voltage Va = Adjusted output voltage Ro = The resistance value in T able 1 Rs = The series resistance from T able 1 Table 1 PT6620 ADJUSTMENT AND FORMULA PARAMETERS Series Pt # PT6622 PT6623 PT6621 PT6624 PT6625 PT6626

For assistance or to order, call (800) 531-5782 Application Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com NotesPT6620 Series Table 2 PT6620 ADJUSTMENT RESISTOR VALUES Series Pt # PT6622 PT6623 PT6621 PT6624 PT6625 Series Pt # PT6625 PT6626 Va (req’d) Va (req’d) 5.0 10.0 3.0k 5.1 190.0k R1 = (Red) R2 = Black

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright  1999, Texas Instruments Incorporated