TEXAS INSTRUMENTS PT6300 Technical data

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PT6300 Series

3 Amp Adjustable Positive S tep-down Integrated S w itching Regulators

SLTS031B

(Revised 9/30/2000)

• 90% Efficiency

• Adjustable Output Voltage

• Internal Short Circuit Protection

• Over-Temperature Protection

• On/Off Control (Ground Off)

• Small SIP Footprint

• Wide Input Range

Switching Regulators (ISRs) designed to meet the on-board power conversion needs of battery powered or other equipment requiring high efficiency and small size. This high performance ISR family offers a unique combination of features combining 90% typical efficiency with open-collector on/off

The PT6300 Series is a line of High-Performance 3 Amp, 12-Pin SIP (Single In-line Package) Integrated

Pin-Out Information

Pin Function

Inhibit

(30V max)

Standard Application

VOADJ

INH COM COM

C1 = Optional 1µF ceramic

= Required 100µF electrolytic

Q1 = NFET

2,3,4

PT6300

5,6,7,8

9,10,11

OUT

(1)

Specifications

Characteristics (Ta=25°C unless noted) Symbols Conditions Min Typ Max Units

Output Current I Short Circuit Current I Input Voltage Range V

(Note: inhibit function cannot Vo = 5.0V 9 — 30/38 be used above 30V.) V

Output Voltage Tolerance ∆V

Line Regulation Reg Load Regulation Reg Vo Ripple/Noise V Transient Response t

with Co = 100µF V Efficiency η V

Switching Frequency ƒ

Shutdown Current I Quiescent Current I

Absolute Maximum T Operating Temperature Range

Thermal Resistance θ

Storage Temperature T

Mechanical Shock Per Mil-STD-883D, Method 2002.3, 1 msec,

Mechanical Vibration Per Mil-STD-883D, Method 2007.2,

Weight — — — 6.5 — grams

Notes:

(1) The PT6300 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications. (2) The ISR will operate to no load with reduced specifications. (3) Input voltage cannot exceed 30V when the inhibit function is used. (4) See Thermal Derating charts. (5) Consult the related application note for guidance on adjusting the output voltage.

line

load

5 GND 6 GND 7 GND 8 GND 9V

out

10 V

out

11 V

out

Adj

(5)

12 V

Over Vin range 0.1 Vin = Vo + 5V — 5.0 — Apk

0.1 ≤ Io ≤ 3.0 A V

Over Vin Range, Io = 3.0 A Ta = 0°C to +60°C

Over Vin range — ±0.25 ±0.5 %V

0.1 ≤ Io ≤ 3.0 A — ±0.25 ±0.5 %V V

= V

min, Io = 3.0 A — ±2 — %V

50% load change — 100 200 µSec Vo over/undershoot — 5.0 — %V

=16V, Io = 0.5 A, Vo = 12V — 91 —

=9V, Io = 0.5 A, Vo = 5.0V — 89 —

=9V, Io = 0.5 A, Vo = 3.3V — 84 —

Vin=9V, Io =0.5A, Vo = 1.5V — 72 — Over Vin and Io ranges, Vo = 12V 600 750 900

Vin = 15V — 100 — µA Io = 0A, V

=10V — 10 — mA

Over Vin range -40 — +85

Free Air Convection (40-60LFM) — 30 — °C/W

— -40 — +125 °C

Half Sine, mounted to a fixture

20-2000 Hz,Soldered in a PC board

Ordering Information

PT6302

¨ = +5 Volts

PT6303

¨ = +3.3 Volts

PT6304

¨ = +12 Volts

PT6314

¨ = +1.5Volts

Pkg Style 200

= 12V 16 — 30/38

= 3.3V 9 — 26

Vo = 1.5V 9.0 — 17

= 3.3V/5V 400 500 600 kHz

Vo = 1.5V 350 450 550

control and adjustable output voltage.

Quiescent current in the shutdown

mode is typically less than 100µA.

PT Series Suffix

Case/Pin Configuration

Vertical Through-Hole

Horizontal Through-Hole

Horizontal Surface Mount

PT6300 SERIES

(2)

— 3.0 A

— ±1.0 ±2.0 %V

— 500

— 10 — G’s

—

(PT1234X)

(3) (3)

(4)

N A C

°C

G’s

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

PT6300 Series

3 Amp Adjustable Positive Step-down Integrated S w itching Regulators

Typical Characteristics

PT6303, 3.3 VDC

Efficiency vs Output Current

100

Efficiency - %Ripple-(mV)Iout-(Amps)PD-(Watts)

00.511.522.53

Iout-(Amps)

(See Note A)

PT6302, 5.0 VDC

Efficiency vs Output Current Efficiency vs Output Current

100

Vin

9.0V

12.0V

15.0V

20.0V

26.0V

Efficiency - %

00.511.522.53

Iout-(Amps)

Ripple vs Output Current Ripple vs Output Current

160

140

120

100

00.51 1.522.53

Iout-(Amps)

Vin

26.0V

20.0V

15.0V

12.0V

9.0V

180

160

140

120

100

Ripple-(mV)

00.511.522.53

Iout-(Amps)

(See Note A)

Vin

38.0V

30.0V

24.0V

15.0V

12.0V

9.0V

PT6304, 12.0 VDC

100

Vin

9.0V

12.0V

15.0V

24.0V

30.0V

38.0V

Efficiency - %

0 0.5 1 1.5 2 2.5 3

(See Note A)

Vin

16.0V

20.0V

24.0V

30.0V

38.0V

Iout-(Amps)

Ripple vs Output Current

350

300

250

200

150

100

Ripple-(mV)Iout-(Amps)

00.511.522.53

Iout-(Amps)

Vin

38.0V

30.0V

24.0V

20.0V

16.0V

)

Thermal Derating (T

2.5

1.5

0.5

85°C

9 111315171921232527

(See Note B)

60°C

70°C

Thermal Derating (Ta)

2.5

1.5

Iout-(Amps)

0.5

9 13172125293337

85°C

(See Note B)

50°C

60°C

70°C

Thermal Derating (Ta)

2.5

1.5

0.5

16 19 22 25 28 31 34 37

Vin-(Volts) Vin-(Volts)Vin-(Volts)

Power Dissipation vs Output Current Power Dissipation vs Output Current

3.5

2.5

1.5

0.5

0 0.5 1 1.5 2 2.5 3

Vin

26.0V

20.0V

15.0V

12.0V

9.0V

3.5

2.5

1.5

PD-(Watts)

0.5

0 0.5 1 1.5 2 2.5 3

Vin

38.0V

30.0V

24.0V

15.0V

12.0V

9.0V

Power Dissipation vs Output Current

4.5

3.5

2.5

PD-(Watts)

1.5

0.5

00.511.522.53

Iout-(Amps) Iout-(Amps) Iout-(Amps)

Note A:

Characteristic data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the ISR

Note B:

Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application note.)

70°C

60°C

(See Note B)

40°C

50°C

Vin

38.0V

30.0V

24.0V

20.0V

16.0V

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

Application Notes

PT6100/6210/6300 Series

Adjusting the Output Vo ltage of Power Trends’ Wide Input Range Bus ISRs

The output voltage of the Power Trends’ Wide Input Range Series ISRs may be adjusted higher or lower than the factory trimmed pre-set voltage with the addition of a single external resistor. Table 1 accordingly gives the allowable adjustment range for each model for either series as V

Adjust Up:

adding a resistor R2, between pin 12 (V (GND).

Adjust Down:

and pins 9-11(V

Figure 1

Vin

F Ceramic

(Optional)

(min) and Va (max).

An increase in the output voltage is obtained by

adjust) and pins 5-8

Add a resistor (R1), between pin 12 (Vo adjust)

out

PT6100/6200/6300

2,3,4

Vin Vo

GND Vo(adj)

125,6,7,8

(R1) Adj Down

R2 Adjust Up

9,10,11

100

(Req'd)

COMCOM

Notes:

1. Use only a single 1% resistor in either the (R1) or R2 location. Place the resistor as close to the ISR as possible.

2. Never connect capacitors from V

. Any capacitance added to the Vo adjust pin will

or V

out

adjust to either GND

affect the stability of the ISR.

3. Adjustments to the output voltage may place additional limits on the maximum and minimum input voltage for the part. The revised maximum and minimum input voltage limits must comply with the following requirements. The limits are model dependant.

PT6216/PT6314:

Vin (max) = (10 x Va)V or 17V, whichever is less.

(min) = 9.0V

All other models:

Vin (max) = (8 x Va)V or as specified.

Vin (min) = (Va + 4)V or 9V, whichever is greater.

The values of (R1) [adjust down], and R2 [adjust up], can also be calculated using the following formulas. Refer to Figure 1 and Table 2 for both the placement and value of the required resistor; either (R1) or R2 as appropriate.

(R1) =

R2 =

Ro (Va – 1.25) V

– V

1.25 R

– V

kΩ

Where: Vo= Original output voltage

= Adjusted output voltage

= The resistance value fromTable 1

Table 1

ISR ADJUSTMENT RANGE AND FORMULA PARAMETERS

1Adc Rated PT6102 PT6101 PT6103 2Adc Rated PT6216 PT6213 PT6212 PT6214 3Adc Rated PT6314 PT6303 PT6302 PT6304

Vo (nom) Va (min) Va (max)

ΩΩ

Ω

Ro (k

ΩΩ

1.5 3.3 5.0 5.0 12.0

1.3 1.8 1.88 2.18 2.43

1.9 6.07 11.25 8.5 22.12

)

8.25 66.5 150.0 90.9 243.0

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

Application Notes

continued

PT6100/6210/6300 Series

Table 2

ISR ADJUSTMENT RESISTOR VALUES

1Adc Rated PT6102 PT6101 PT6103 2Adc Rated PT6216 PT6213 PT6212 PT6214 3Adc Rated PT6314 PT6303 PT6302 PT6304 Vo (nom) 1.5 3.3 5.0 5.0 12.0 Va (req.d)

1.3 (2.1kΩ)

1.4 (12.4kΩ)

1.5

1.6 103.0kΩ

1.7 51.6kΩ

1.8 34.4kΩ (24.4)kΩ

1.9 25.8kΩ (30.9)kΩ (31.5)kΩ

2.0 (38.4)kΩ (37.5)kΩ

2.1 (47.1)kΩ (44.0)kΩ

2.2 (57.4)kΩ (50.9)kΩ (30.8)kΩ

2.3 (69.8)kΩ (58.3)kΩ (35.4)kΩ

2.4 (85.0)kΩ (66.3)kΩ (40.2)kΩ

2.5 (104.0)kΩ (75.0)kΩ (45.5)kΩ (32.0)kΩ

2.6 (128.0)kΩ (84.4)kΩ (51.1)kΩ (34.9)kΩ

2.7 (161.0)kΩ (94.6)kΩ (57.3)kΩ (37.9)kΩ

2.8 (206.0)kΩ (106.0)kΩ (64.0)kΩ (40.9)kΩ

2.9 (274.0kΩ (118.0)kΩ (71.4)kΩ (44.1)kΩ

3.0 (388.0)kΩ (131.0)kΩ (79.5)kΩ (47.3)kΩ

3.1 (615.0)kΩ (146.0)kΩ (88.5)kΩ (50.5)kΩ

3.2 (1300.0)kΩ (163.0)kΩ (98.5)kΩ (53.8)kΩ

3.3 (181.0)kΩ (110.0)kΩ (57.3)kΩ

3.4 831.0kΩ (202.0)kΩ (122.0)kΩ (60.8)kΩ

3.5 416.0kΩ (225.0)kΩ (136.0)kΩ (64.3)kΩ

3.6 227.0kΩ (252.0)kΩ (153.0)kΩ (68.0)kΩ

3.7 208.0kΩ (283.0)kΩ (171.0)kΩ (71.7)kΩ

3.8 166.0kΩ (319.0)kΩ (193.0)kΩ (75.6)kΩ

3.9 139.0kΩ (361.0)kΩ (219.0)kΩ (79.5)kΩ

4.0 119.0kΩ (413.0)kΩ (250.0)kΩ (83.5)kΩ

4.1 104.0kΩ (475.0)kΩ (288.0)kΩ (87.7)kΩ

4.2 92.4kΩ (533.0)kΩ (335.0)kΩ (91.9)kΩ

4.3 83.1kΩ (654.0)kΩ (396.0)kΩ (96.3)kΩ

4.4 75.6kΩ (788.0)kΩ (477.0)kΩ (101.0)kΩ

4.5 69.3kΩ (975.0)kΩ (591.0)kΩ (105.0)kΩ

4.6 63.9kΩ (1260.0)kΩ (761.0)kΩ (110.0)kΩ

4.7 59.4kΩ (1730.0)kΩ (1050.0)kΩ (115.0)kΩ

4.8 55.4kΩ (1610.0)kΩ (120.0)kΩ

4.9 52.0kΩ (125.0)kΩ

5.0 48.9kΩ (130.0)kΩ

5.1 46.2kΩ 1880.0kΩ 1140.0kΩ (136.0)kΩ

5.2 43.8kΩ 937.0kΩ 568.0kΩ (141.0)kΩ

5.3 41.6kΩ 625.0kΩ 379.0kΩ (147.0)kΩ

5.4 39.6kΩ 469.0kΩ 284.0kΩ (153.0)kΩ

5.5 37.8kΩ 375.0kΩ 227.0kΩ (159.0)kΩ

5.6 36.1kΩ 313.0kΩ 189.0kΩ (165.0)kΩ

5.7 34.6kΩ 268.0kΩ 162.0kΩ (172.0)kΩ

5.8 33.3kΩ 234.0kΩ 142.0kΩ (178.0)kΩ

5.9 32.0kΩ 208.0kΩ 126.0kΩ (185.0)kΩ

6.0 30.8kΩ 188.0kΩ 114.0kΩ (192.0)kΩ

ISR ADJUSTMENT RESISTOR VALUES (Cont)

1Adc Rated PT6101 PT6103 2Adc Rated PT6212 PT6214 3Adc Rated PT6302 PT6304 Vo (nom) 5.0 5.0 12.0 Va (req.d)

6.2 156.0kΩ 94.7kΩ (207.0)kΩ

6.4 134.0kΩ 81.2kΩ (223.0)kΩ

6.6 117.0kΩ 71.0kΩ (241.0)kΩ

6.8 104.0kΩ 63.1kΩ (259.0)kΩ

7.0 93.8kΩ 56.8kΩ (279.0)kΩ

7.2 85.2kΩ 51.6kΩ (301.0)kΩ

7.4 78.1kΩ 47.3kΩ (325.0)kΩ

7.6 72.1kΩ 43.7kΩ (351.0)kΩ

7.8 67.0kΩ 40.6kΩ (379.0)kΩ

8.0 62.5kΩ 37.9kΩ (410.0)kΩ

8.2 58.6kΩ 35.5kΩ (444.0)kΩ

8.4 55.1kΩ 33.4kΩ (483.0)kΩ

8.6 52.1kΩ (525.0)kΩ

8.8 49.3kΩ (573.0)kΩ

9.0 46.9kΩ (628.0)kΩ

9.5 41.7kΩ (802.0)kΩ

10.0 37.5kΩ (1060.0)kΩ

10.5 34.1kΩ (1500.0)kΩ

11.0 31.3kΩ

11.5

12.0

12.5 608.0kΩ

13.0 304.0kΩ

13.5 203.0kΩ

14.0 152.0kΩ

14.5 122.0kΩ

15.0 101.0kΩ

15.5 86.8kΩ

16.0 75.9kΩ

16.5 67.5kΩ

17.0 60.8kΩ

17.5 55.2kΩ

18.0 50.6kΩ

18.5 46.7kΩ

19.0 43.4kΩ

19.5 40.5kΩ

20.0 38.0kΩ

20.5 35.7kΩ

21.5 33.8kΩ

21.5 32.0kΩ

22.0 30.4kΩ

R1 = (Blue) R2 = Black

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

Application Notes

PT6100/6210/6300 Series

Using the Inhibit Function on Power Trends’ Wide Input Range Bus ISRs

For applications requiring output voltage On/Off control, the 12pin ISR products incorporate an inhibit function. The function has uses in areas such as battery conservation, power-up sequencing, or any other application where the regulated output from the module is required to be switched off. The On/Off function is provided by the Pin 1 (Inhibit) control.

The ISR functions normally with Pin 1 open-circuit, providing a regulated output whenever a valid source voltage is applied to V level2 ground signal is applied to Pin 1, the regulator

, (pins 2, 3, & 4). When a low-

output will be disabled.

Figure 1 shows an application schematic, which details the typical use of the Inhibit function. Note the discrete transistor (Q1). The Inhibit control has its own internal pull-up with a maximum open-circuit voltage of 8.3VDC. Only devices with a true open-collector or open-drain output can be used to control this pin. A discrete bipolar transistor or MOSFET is recommended.

Equation 1 may be used to determine the approximate current drawn by Q1 when the inhibit is active.

Equation 1

stby

÷ 155kΩ ± 20%

Figure 1

C1, 1µF (Optional)

Inh

COM

Turn-On Time:

PT6100/6210/6300

2,3,4

Vin Vo

GND Vo(adj)

Inh*

Q1 BSS138

The output of the ISR is enabled automatically

9,10,11

125,6,7,8

100

out

COM

when external power is applied to the input. The Inhibit control pin is pulled high by its internal pull-up resistor. The ISR produces a fully regulated output voltage within 1-msec of either the release of the Inhibit control pin, or the application of power. The actual turn-on time will vary with the input voltage, output load, and the total amount of capacitance connected to the output Using the circuit of Figure 1, Figure 2 shows the typical rise in output voltage for the PT6101 following the turn-off of Q1 at time t =0. The waveform was measured with a 9Vdc input voltage, and 5-Ohm resistive load.

Figure 2

Notes:

1. The Inhibit control logic is similar for all Power Trends’

modules, but the flexibility and threshold tolerances will be

different. For specific information on the inhibit function

of other ISR models, consult the applicable application

note.

2. Use only a true open-collector device (preferably a discrete

transistor) for the Inhibit input.

Do Not use a pull-up resistor, or drive the input directly from the output of a TTL or other logic gate. To disable the output voltage, the control pin should be pulled low to less than +1.5VDC.

3. When the Inhibit control pin is active, i.e. pulled low, the maximum allowed input voltage is limited to +30Vdc.

4. Do not control the Inhibit input with an external DC voltage. This will lead to erratic operation of the ISR and may over-stress the regulator.

5. Avoid capacitance greater than 500pF at the Inhibit control pin. Excessive capacitance at this pin will cause the ISR to produce a pulse on the output voltage bus at turn-on.

6. Keep the On/Off transition to less than 10µs. This

prevents erratic operation of the ISR, which can cause a momentary high output voltage.

(Vdc)

-0.2 0 0.2 0.4 0.6 0.8 1 t (mill i -secs)

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

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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.

Customers are responsible for their applications using TI components. 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

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TEXAS INSTRUMENTS PT6300 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual