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

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P T 6 6 5 0 S e r i e s

Revised 2/5/99

Application Notes

5 AMP 24V INPUT

INTEGRATED SWITCHING REGULATOR Mechanical Outline

Product Selector Guide

•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

(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.

Pin-Out Information

Ordering Information

PT Series Suffix (PT1234X)

1

Remote Sense

PT6651¨ = +3.3 Volts

Case/Pin

Heat

Heat Spreader

2

Do Not Connect

Standard Application

PT6652¨ = +2.5 Volts

Configuration

Spreader with Side Tabs

3

STBY*- Standby

PT6653¨ = +5.0 Volts

Vertical Through-Hole

P

R

4

Vin

1

REMOTE SENSE

PT6654¨ = +9.0 Volts

D

G

5

Vin

Horizontal Through-Hole

VIN

VOUT

PT6655¨ = +15.0 Volts

4,5,6

PT6650

11,12,13

6

Vin

Horizontal Surface Mount

E

B

3

PT6656¨ = +12.0 Volts

7

GND

+

7,8,9,10

+

C1

C2

LOAD

8

GND

STBY

Q1

COM

9

GND

Pkg Style 400

COM

10

GND

Note: Back surface

C1 = Required 100µF electrolytic

11

Vout

of product is

C2 = Required 330µF electrolytic

conducting metal

12

Vout

Q1= NFET-or Open Collector Gate

13

Vout

14

Vout Adjust

Specifications

Characteristics

PT6650 SERIES

(Ta = 25°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

Output Current

Io

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

Vin

0.1A ≤ Io ≤ 5.0A

Vo < +6V

+9V

—

+28V

V

Vo > +6V

Vo+3

—

+28V

V

Output Voltage Tolerance

Vo

Over Vin range

Vo-0.1

—

Vo+0.1

V

Ta = -40°C to +65°C

Output Voltage Adjust Range

Voadj

Pin 14 to Vo or ground

Vo = +3.3V

2.2

—

4.7

Vo = +2.5V

1.8

—

4.3

V

Vo = +5.0V

3.0

—

6.5

Vo = +9.0V

6.0

—

10.2

Vo = +12V

9.0

—

13.6

Vo = +15V

10.0

—

17.0

Line Regulation

Regline

+9V≤Vin≤+28V, Io = 5.0A

—

±0.5

±1.0

%Vo

Load Regulation

Regload

Vin = +24V, 0.1≤ Io≤5.0A

—

±0.5

±1.0

%Vo

Vo Ripple/Noise

Vn

Vin = +24V, Io = 5.0A

Vo < +6V

—

50

—

mVpp

Vo > +6V

1.0

%Vo

Transient Response

ttr

Io step between 2.5A and 5.0A

—

100

—

µSec

with C2 = 330µF

Vos

Vo over/undershoot

—

100

—

mV

Efficiency

η

Vin = +24V, Io = 0.5x Io max

Vo = +3.3V

—

81

—

%

Vo = +2.5V

—

76

—

%

Vo = +5.0V

—

85

—

%

Vin = +24V, Io = Io max

Vo = +3.3V

—

80

—

%

Vo = +2.5V

—

75

—

%

Vo = +5.0V

—

84

—

%

Switching Frequency

ƒo

9V ≤ Vin ≤ 28V

500

550

600

kHz

Over Io range

Recommended Operating

Ta

Free Air Convection (40-60 LFM)

-40

—

+65

°C

Temperature Range

Over Vin and Io ranges with heat tab

Storage Temperature

Ts

—

-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.

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

For assistance or to order, call [phone]

P T 6 6 5 0 S e r i e s

C H A R A C T E R I S T I C D A T A

PT6650 Series @Vin=+24V

Safe Operating Area Curves @Vin=+24V

	Efficiency vs Output Current							PT6651P, 3.3V
	100							90
	90							80
							(°C)
								70
(%)Efficiency	80						TemperatureAmbient		Recommended Maximum					Airflow
						PT6651
						PT6652		60	Operating Temperature					Nat conv
						PT6653
	70													60LFM
						PT6654
														120LFM
						PT6655		50
														200LFM
						PT6656
	60
								40
	50							30
	40							20
	0	1	2	3	4	5		0	1	2	3	4	5	6
			Output Current (A)							Output Current (A)
	Ripple vs Output Current							PT6652P, 2.5V
	120							90
	100						(°C)	80
								70
(mVpp)Ripple	80						TemperatureAmbient		Recommended Maximum					Airflow
						PT6651
						PT6652		60	Operating Temperature					Nat conv
						PT6653
	60													60LFM
						PT6654								120LFM
								50
						PT6655								200LFM
	40					PT6656
								40
	20							30
	0							20
	0	1	2	3	4	5		0	1	2	3	4	5	6

Output Current (A)

Output Current (A)

	Power Dissipation vs Output Current							PT6653P, 5.0V
	5							90
								80
	4						(°C)
								70
(Watts)Pd	1					PT6651	TemperatureAmbient		Recommended Maximum					Airflow
						PT6652
	3								Operating Temperature
						PT6653		60						Nat conv
						PT6654								60LFM
						PT6655		50						120LFM
	2													200LFM
						PT6656
								40
								30
	0							20
	0	1	2	3	4	5		0	1	2	3	4	5	6
			Output Current (A)							Output Current (A)

	V24	T A D
	roductstsP usB	S T E E H S A

			55
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555	[phone]	Fax: [phone] http://www.powertrends.com