TEXAS INSTRUMENTS TL780 Technical data
CHIP
查询TL780-05CKTE供应商
D
±1% Output Tolerance at 25°C
D
±2% Output Tolerance Over Full Operating
Range
D
Thermal 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.
POSITIVE-VOLTAGE REGULATORS
SLVS055F – APRIL 1981 – REVISED DECEMBER 1999
D
Internal Short-Circuit Current Limiting
D
Pinout Identical to µA7800 Series
D
Improved Version of µA7800 Series
TL780 SERIES
KC PACKAGE
(TOP VIEW)
OUTPUT
COMMON
INPUT
The COMMON terminal is in electrical
contact with the mounting base.
TO-220AB
T
J
0°C to 125°C
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.
O
C
I
AVAILABLE OPTIONS
PACKAGED DEVICES
VO TYP
HEAT-SINK MOUNTED
(V)
5 TL780-05CKC TL780-05CKTE TL780-05Y
12 TL780-12CKC TL780-12CKTE TL780-12Y
15 TL780-15CKC TL780-15CKTE TL780-15Y
(KC)
FLANGE MOUNTED
The COMMON terminal is in electrical
contact with the mounting base.
PLASTIC
(KTE)
KTE PACKAGE
(TOP VIEW)
FORM
(Y)
OUTPUT
COMMON
INPUT
O
C
I
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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1999, Texas Instruments Incorporated
1
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055F – APRIL 1981 – REVISED DECEMBER 1999
schematic
INPUT
OUTPUT
COMMON
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER
TEST CONDITIONS
T
‡
UNIT
Output voltage
O
,
,
V
Input voltage regulation
25°C
mV
Output voltage regulation
25°C
mV
Input bias-current change
0°C to 125°C
mA
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055F – APRIL 1981 – REVISED DECEMBER 1999
absolute maximum ratings over operating temperature range (unless otherwise noted)
†
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, T
; case, TC; or virtual junction, TJ, temperature range 0°C to 150°C. . . . . . . . . . . . . . . . .
A
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
Stresses beyond those listed under “absolute maximum ratings” 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 “recommended operating conditions” 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),
ambient temperature is PD = (TJ(max) – TA)/
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.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
θ
, and TA. The maximum allowable power dissipation at any allowable
θ
JA
JA
. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
recommended operating conditions
MIN MAX UNIT
TL780-05C 7 25
Input voltage, V
Output current, I
Operating virtual junction temperature, T
I
O
J
TL780-12C 14.5 30 V
TL780-15C 17.5 30
1.5 A
0 125 °C
electrical characteristics at specified virtual junction temperature, VI = 10 V, IO = 500 mA (unless
otherwise noted)
J
I
p
p
Ripple rejection VI = 8 V to 18 V, f = 120 Hz 0°C to 125°C 70 85 dB
p
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 µV
Dropout voltage IO = 1 A 25°C 2 V
Input bias current 25°C 5 8 mA
p
Short-circuit output current 25°C 750 mA
Peak output current 25°C 2.2 A
‡
Pulse-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-µF capacitor across the input and a 0.22-µF capacitor across the output.
= 5 mA to 1 A, P ≤ 15 W,
VI = 7 V to 20 V
VI = 7 V to 25 V
VI = 8 V to 12 V
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
VI = 7 V to 25 V
IO = 5 mA to 1 A
25°C 4.95 5 5.05
0°C to 125°C 4.9 5.1
°
°
°
°
TL780-05C
MIN TYP MAX
0.5 5
0.5 5
4 25
1.5 15
0.7 1.3
0.003 0.5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
Loading...