Datasheet PT6651M, PT6651P, PT6651Q, PT6651R, PT6652B Datasheet (Texas Instruments)

For assistance or to order, call [phone]

54

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com

• Single Device: 5A Output

• Input Voltage Range: 9V to 28V

• Adjustable Output Voltage

• 80% Efficiency

• Remote Sense Capability

• Standby Function

The PT6650 series is a new addi­tion to Power Trends’ line of 24V bus
Integrated Switching Regulators

5 AMP 24V INPUT
INTEGRATED SWITCHING REGULATOR

PT6650 Series

Standard Application

C1 = Required 100µF electrolytic
C2 = Required 330µF electrolytic
Q1= NFET-or Open Collector Gate

PT6650

4,5,6

7,8,9,10

11,12,13

V

IN

COM

COM

V

OUT

C

2

+

C

1

+

1

3

STBY

Q

1

REMOTE SENSE

LOAD

Ordering Information

PT6651¨ = +3.3 Volts
PT6652¨ = +2.5 Volts
PT6653¨ = +5.0 Volts
PT6654¨ = +9.0 Volts
PT6655¨ = +15.0 Volts
PT6656¨ = +12.0 Volts

PT Series Suffix

(PT1234X)

Case/Pin Heat Heat Spreader
Configuration Spreader with Side Tabs

Vertical Through-Hole

PR

Horizontal Through-Hole

DG

Horizontal Surface Mount

EB

1 Remote Sense
2 Do Not Connect
3 STBY*- Standby
4V

in

5V

in

6V

in

7 GND
8 GND

9 GND
10 GND
11 V

out

12 V

out

13 V

out

14 V

out

Adjust

Pin-Out Information

(ISRs). Designed for general purpose
industrial applications requiring as
much as 5A of output current, the
PT6650 is packaged in a 14-Pin SIP
(Single In-line Package) and is available
in a surface-mount configuration.

Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.

Note: Back surface
of product is
conducting metal

54

Pkg Style 400

Specifications

Characteristics

PT6650 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* — 5.0** A
Ta = 25°C, natural convection 0.1* — 5.0** A

Input Voltage Range V

in

0.1A ≤ I

o

≤ 5.0A Vo < +6V +9V — +28V V

V

o

> +6V Vo+3 — +28V V

Output Voltage Tolerance ∆V

o

Over V

in

range

Ta = -40°C to +65°C

V

o-0.1 — Vo+0.1 V

Output Voltage Adjust Range V

oadj

Pin 14 to V

o

or ground Vo = +3.3V 2.2 — 4.7

V

o

= +2.5V 1.8 — 4.3

V

o

= +5.0V 3.0 — 6.5 V

V

o

= +9.0V 6.0 — 10.2

V

o

= +12V 9.0 — 13.6

V

o

= +15V 10.0 — 17.0

Line Regulation Reg

line

+9V≤Vin≤+28V, Io = 5.0A — ±0.5 ±1.0 %V

o

Load Regulation Reg

load

Vin = +24V, 0.1≤ Io≤5.0A — ±0.5 ±1.0 %V

o

Vo Ripple/Noise V

n

V

in

= +24V, Io = 5.0A Vo < +6V — 50 — mVpp

V

o

> +6V 1.0 %V

o

Transient Response t

tr

Io step between 2.5A and 5.0A — 100 — µSec

with C2 = 330µF V

os

Vo over/undershoot — 100 — mV

Efficiency

η Vin = +24V, Io = 0.5x I

o maxVo

= +3.3V — 81 — %

V

o

= +2.5V — 76 — %

V

o

= +5.0V — 85 — %

V

in

= +24V, Io = I

o max

V

o

= +3.3V — 80 — %

V

o

= +2.5V — 75 — %

V

o

= +5.0V — 84 — %

Switching Frequency ƒ

o

9V ≤ V

in

≤ 28V

500 550 600 kHz

Over Io range

Recommended Operating T

a

Free Air Convection (40-60 LFM)

-40 — +65 °C

Temperature Range Over V

in

and Io ranges with heat tab

Storage Temperature 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’s

20-2000 Hz, soldered in a PC board
Weight — — — 14 — grams

* ISR will operate down to no load with reduced specifications. ** See SOA curves.

Note:

The PT6650 Series requires a 330µF(output) and 100µF(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 [phone]

55

24V Bus Products

DATA SHEETS

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com

CHARACTERISTIC DATA

55

24V Bus Products

DATA SHEETS

PT6650 Series

Efficiency vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Efficiency (%)

Output Current (A)

Ripple (mVpp)

Output Current (A)

Pd (Watts)

Output Current (A)

PT6650 Series @VPT6650 Series @V

PT6650 Series @VPT6650 Series @V

PT6650 Series @V

in=+24Vin=+24V

in=+24Vin=+24V

in=+24V

Safe Operating Area Curves @VSafe Operating Area Curves @V

Safe Operating Area Curves @VSafe Operating Area Curves @V

Safe Operating Area Curves @V

in=+24Vin=+24V

in=+24Vin=+24V

in=+24V

40

50

60

70

80

90

100

012345

PT6651
PT6652
PT6653
PT6654
PT6655
PT6656

0

20

40

60

80

100

120

012345

PT6651
PT6652
PT6653
PT6654
PT6655
PT6656

0

1

2

3

4

5

012345

PT6651
PT6652
PT6653
PT6654
PT6655
PT6656

PT6651P, 3.3V

Ambient Temperature (°C)

Output Current (A)

Airflow

Recommended Maximum

Operating Temperature

Ambient Temperature (°C)

Output Current (A)

Airflow

Recommended Maximum

Operating Temperature

PT6652P, 2.5V

Ambient Temperature (°C)

Output Current (A)

Airflow

Recommended Maximum

Operating Temperature

PT6653P, 5.0V

20

30

40

50

60

70

80

90

0123456

Nat conv
60LFM
120LFM
200LFM

20

30

40

50

60

70

80

90

0123456

Nat co nv
60LFM
120LFM
200LFM

20

30

40

50

60

70

80

90

0123456

Nat conv
60LFM
120LFM
200LFM

For assistance or to order, call [phone]

3

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com

Application Notes

PT6650 Series

More Application Notes

Adjusting the Output Voltage of the
PT6650 5Amp 24V Bus Converter Series

The output voltage of the Power Trends PT6650 Series ISRs
may be adjusted higher or lower than the factory trimmed pre­set voltage with the addition of a single external resistor. Table 1
accordingly gives the allowable adjustment range for each model
in the series as Va (min) and Va (max).

Adjust Up: An increase in the output voltage is obtained by
adding a resistor R2, between pin 14 (V

o

adjust) and pins 7-10

(GND).

Adjust Down: Add a resistor (R1), between pin 14 (V

o

adjust)

and pins 11-13 (V

out

).

Refer to Figure 1 and Table 2 for both the placement and value
of the required resistor, either (R1) or R2 as appropriate.

Notes:

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

2. Never connect capacitors from V

o

adjust to either GND,

V

out

, 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 V

out

+ 3,

or 9V, whichever is higher.

5. For output voltages above 12.5Vdc, the maximum output
current must be limited to 4Adc.

The values of (R1) [adjust down], and R2 [adjust up], can
also be calculated using the following formulae.

Ro (Vo – 1.25)(Va – 1.25)

(R1) =

1.25 (V

o

– Va)

– R

s

kΩ

Ro (Vo – 1.25)

– R

s

kΩ

R2 =

V

a

- V

o

Where: Vo= Original output voltage

V

a

= Adjusted output voltage

R

o

= The resistance value in Table 1

R

s

= The series resistance from Table 1

Figure 1

Table 1

PT6650 ADJUSTMENT AND FORMULA PARAMETERS

Series Pt # PT6652 PT6651 PT6653 PT6654 PT6656 PT6655
Vo (nom) 2.5V 3.3V 5.0V 9.0V 12.0V 15.0V

Va (min) 1.8V 2.2V 3.0V 6.0V 9.0V 10.0V
Va (max) 4.3V 4.7V 6.5V 10.2V 13.6V 17.0V
Ro (k

ΩΩ

ΩΩ

Ω) 4.99 4.22 2.49 2.0 2.0 2.0

Rs (k

ΩΩ

ΩΩ

Ω) 2.49 4.99 4.99 12.7 12.7 12.7

C

in

100µF

+

C

out

330µF

+

(R1)
Adj Down

R2
Adjust Up

Vo

COMCOM

Vin

L
O
A
D

PT6650

11,12,13

147,8,9,10

4,5,6

Vin Vo

GND Vo(adj)STBY

3

Vsense

1

For assistance or to order, call [phone]

4

Application

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com

Notes

PT6650 Series

Table 2

PT6650 ADJUSTMENT RESISTOR VALUES

Series Pt # PT6652 PT6651 PT6653 Series Pt # PT6654 PT6656 PT6655
Current 5Adc 5Adc 5Adc Current 5Adc 5Adc 4Adc
Vo (nom) 2.5Vdc 3.3Vdc 5.0Vdc Vo (nom) 9.0Vdc 12.0Vdc 15.0Vdc
Va (req’d) Va (req’d)

1.8 (1.4)kΩ 6.0 (6.9)kΩ

1.9 (2.9)kΩ 6.2 (9.2)kΩ

2.0 (5.0)kΩ 6.4 (11.9)kΩ

2.1 (8.1)kΩ 6.6 (14.0)kΩ

2.2 (13.3)kΩ (1.0)kΩ 6.8 (18.6)kΩ

2.3 (23.7)kΩ (2.3)kΩ 7.0 (23.0)kΩ

2.4 (54.9)kΩ (3.9)kΩ 7.2 (28.3)kΩ

2.5 (5.8)kΩ 7.4 (35.0)kΩ

2.6 59.9kΩ (8.4)kΩ 7.6 (43.5)kΩ

2.7 28.7kΩ (11.7)kΩ 7.8 (55.0)kΩ

2.8 18.3kΩ (16.5)kΩ 8.0 (71.0)kΩ

2.9 13.1kΩ (23.6)kΩ 8.2 (95.0)kΩ

3.0 10.0kΩ (35.4)kΩ (1.6)kΩ 8.4 (135.0)kΩ

3.1 7.9kΩ (59.0)kΩ (2.3)kΩ 8.6 (215.0)kΩ

3.2 6.4kΩ (130.0)kΩ (3.1)kΩ 8.8 (455.0)kΩ

3.3 5.3kΩ (4.0)kΩ 9.0 (31.7)kΩ

3.4 4.4kΩ 81.5kΩ (5.1)kΩ 9.2 64.8kΩ (36.1)kΩ

3.5 3.8kΩ 38.3kΩ (6.2)kΩ 9.4 26.1kΩ (41.2)kΩ

3.6 3.2kΩ 23.8kΩ (7.6)kΩ 9.6 13.1kΩ (47.1)kΩ

3.7 2.7kΩ 16.6kΩ (9.1)kΩ 9.8 6.7kΩ (54.1)kΩ

3.8 2.3kΩ 12.3kΩ (10.9)kΩ 10.0 2.8kΩ (62.6)kΩ (25.8)kΩ

3.9 2.0kΩ 9.4kΩ (13.0)kΩ 10.2 0.2kΩ (72.8)kΩ (28.3)kΩ

4.0 1.7kΩ 7.4kΩ (15.6)kΩ 10.4 (85.7)kΩ (31.1)kΩ

4.1 1.4kΩ 5.8kΩ (18.7)kΩ 10.6 (102.0)kΩ (34.1)kΩ

4.2 1.2kΩ 4.6kΩ (22.6)kΩ 10.8 (124.0)kΩ (37.3)kΩ

4.3 1.0kΩ 3.7kΩ (27.6)kΩ 11.0 (155.0)kΩ (40.9)kΩ

4.4 2.9kΩ (34.2)kΩ 11.2 (201.0)kΩ (44.9)kΩ

4.5 2.2kΩ (43.6)kΩ 11.4 (278.0)kΩ (49.3)kΩ

4.6 1.7kΩ (57.6)kΩ 11.6 (432.0)kΩ (54.3)kΩ

4.7 1.2kΩ (80.9)kΩ 11.8 (895.0)kΩ (59.8)kΩ

4.8 (128.0)kΩ 12.0 (66.1)kΩ

4.9 (268.0)kΩ 12.2 94.8kΩ (73.3)kΩ

5.0 12.4 41.1kΩ (81.6)kΩ

5.1 88.4kΩ 12.6 23.1kΩ (91.3)kΩ

5.2 41.7kΩ 12.8 14.2kΩ (103.0)kΩ

5.3 26.1kΩ 13.0 8.8kΩ (117.0)kΩ

5.4 18.4kΩ 13.2 5.2kΩ (133.0)kΩ

5.5 13.7kΩ 13.4 2.7kΩ (154.0)kΩ

5.6 10.6kΩ 13.6 0.7kΩ (181.0)kΩ

5.7 8.4kΩ 13.8 (217.0)kΩ

5.8 6.7kΩ 14.0 (268.0)kΩ

5.9 5.4kΩ 14.2 (343.0)kΩ

6.0 4.4kΩ 14.5 (570.0)kΩ

6.1 3.5kΩ 15.0

6.2 2.8kΩ 15.5 42.3kΩ

6.3 2.2kΩ 16.0 14.8kΩ

6.4 1.7kΩ 16.5 5.6kΩ

6.5 1.2kΩ 17.0 1.1kΩ

R1 = (Red) R2 = Black

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