Texas Instruments TL780-15CKC, TL780-12CKTER, TL780-12CKTE, TL780-12CKC, TL780-05CKTER Datasheet

		TL780 SERIES
		POSITIVE-VOLTAGE REGULATORS
		SLVS055F ± APRIL 1981 ± REVISED DECEMBER 1999
D ±1%	Output Tolerance at 25°C	D Internal Short-Circuit Current Limiting
D ±2%	Output Tolerance Over Full Operating	D Pinout Identical to A7800 Series
Range		D Improved Version of A7800 Series

DThermal Shutdown

description

Each fixed-voltage precision regulator in the TL780 series is capable of supplying 1.5 A of load current. A unique temperature-compensation technique, coupled with an internally trimmed band-gap reference, has resulted in improved accuracy when compared to other three-terminal regulators. Advanced layout techniques provide excellent line, load, and thermal regulation. The internal current-limiting and thermal-shutdown features make the devices essentially immune to overload.

The TL780-xxC series regulators are characterized for operation over the virtual junction temperature range of 0°C to 125°C.

KC PACKAGE (TOP VIEW)

OUTPUT

COMMON

INPUT

The COMMON terminal is in electrical contact with the mounting base.

TO-220AB	O C I

AVAILABLE OPTIONS

KTE PACKAGE (TOP VIEW)

OUTPUT

COMMON

INPUT

The COMMON terminal is in electrical contact with the mounting base.

O C

I

			PACKAGED DEVICES		CHIP
		VO TYP
				PLASTIC
	TJ		HEAT-SINK MOUNTED		FORM
		(V)		FLANGE MOUNTED
			(KC)		(Y)
				(KTE)
		5	TL780-05CKC	TL780-05CKTE	TL780-05Y
	0°C to 125°C	12	TL780-12CKC	TL780-12CKTE	TL780-12Y
		15	TL780-15CKC	TL780-15CKTE	TL780-15Y

The KTE package is available taped and reeled. Add the suffix R to the device type (e.g., TL780-05CKTER). Chip forms are tested at 25°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Copyright 1999, Texas Instruments Incorporated

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

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TL780 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS055F ± APRIL 1981 ± REVISED DECEMBER 1999

schematic

INPUT

OUTPUT

COMMON

2	POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

TL780 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS055F ± APRIL 1981 ± REVISED DECEMBER 1999

absolute maximum ratings over operating temperature range (unless otherwise noted)²

Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . 35 V
Package thermal impedance, θJA (see Notes 1 and 2): KC package . . . . . . . . . . . . . . . . . . . . .	. . . . . . 22°C/W
KTE package . . . . . . . . . . . . . . . . . . .	. . . . . . 23°C/W
Operating free-air, TA; case, TC; or virtual junction, TJ, temperature range . . . . . . . . . . . . . . . .	. 0°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . 260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	±65°C to 150°C

²Stresses beyond those listed under ªabsolute maximum ratingsº may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under ªrecommended operating conditionsº is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) ± TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation.

2. The package thermal impedance is calculated in accordance with JESD 51.

recommended operating conditions

		MIN	MAX	UNIT
	TL780-05C	7	25
Input voltage, VI
	TL780-12C	14.5	30	V
	TL780-15C	17.5	30
Output current, IO			1.5	A
Operating virtual junction temperature, TJ		0	125	°C

electrical characteristics at specified virtual junction temperature, VI = 10 V, IO = 500 mA (unless otherwise noted)

PARAMETER	TEST CONDITIONS		T	³		TL780-05C		UNIT
				J	MIN	TYP	MAX
Output voltage	IO = 5 mA to 1 A,	P ≤ 15 W,	25°C		4.95	5	5.05	V
	V = 7 V to 20 V		°	°	4.9		5.1
	I		0 C to 125 C
Input voltage regulation	VI = 7 V to 25 V		25°C			0.5	5	mV
	VI = 8 V to 12 V					0.5	5
Ripple rejection	VI = 8 V to 18 V,	f = 120 Hz	0°C to 125°C		70	85		dB
Output voltage regulation	IO = 5 mA to 1.5 A		25°C			4	25	mV
	IO = 250 mA to 750 mA					1.5	15
Output resistance	f = 1 kHz		0°C to 125°C			0.0035		W
Temperature coefficient of output voltage	IO = 5 mA		0°C to 125°C			0.25		mV/°C
Output noise voltage	f = 10 Hz to 100 kHz		25°C			75		V
Dropout voltage	IO = 1 A		25°C			2		V
Input bias current			25°C			5	8	mA
Input bias-current change	VI = 7 V to 25 V		0°C to 125°C			0.7	1.3	mA
	IO = 5 mA to 1 A					0.003	0.5
Short-circuit output current			25°C			750		mA
Peak output current			25°C			2.2		A

³Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33- F capacitor across the input and a 0.22- F capacitor across the output.

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

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