TEA7685SP [STMICROELECTRONICS]
8.5V FIXED POSITIVE LDO REGULATOR, 0.8V DROPOUT, PSFM3, PLASTIC, TO-220, 3 PIN;型号: | TEA7685SP |
厂家: | ST |
描述: | 8.5V FIXED POSITIVE LDO REGULATOR, 0.8V DROPOUT, PSFM3, PLASTIC, TO-220, 3 PIN 局域网 输出元件 调节器 |
文件: | 总4页 (文件大小:77K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TEA7685
LOW-DROP VOLTAGE REGULATOR
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■
■
■
■
VO = 8.5V ± 4 % (IO = 5mA)
IO = 5 TO 500mA
VI – VO = 0.6 V (IO = 500mA)
VI (surge) = ± 80V
THERMAL AND SHORT-CIRCUIT
PROTECTION
TO220
(Plastic Package)
ORDER CODE : TEA7685SP
PIN CONNECTIONS
GND
1 =
2 =
V
V
I
O
3 = GND
DESCRIPTION
TEA7610 is a low-drop 8.5V regulator well suited
to supplying stabilized voltage to µPs in harsh
industrial environment.
Special care was taken to keep :
- Lowest possible output capacitor (1µF).
1
2
3
BLOCK DIAGRAM
2
VOUT
BALLAST
VIN
1
START-UP
BLOCK
CURRENT
LIMIT
REGULATION
THERMAL
PROTECTION
3
GND
1/4
June 1992
TEA7685
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VI
Input Voltage
- Continuous
- τ = 300 ms
30
80
V
V
VI(R)
Reverse Input Voltage
- Continuous
- τ = 120 ms
– 18
– 80
V
V
TJ
Operating Junction Temperature
Storage Temperature
– 45, +150
– 55, +150
°C
°C
Tstg
THERMAL DATA
Symbol
Parameter
Value
3
Unit
°C/W
°C/W
Rth (j-c)
Rth (j-a)
Junction-case Thermal Resistance
Max.
Max.
Junction-ambient Thermal Resistance
70
ELECTRICAL OPERATING CHARACTERISTICS
Tj = 25oC, VI = 14.4V (unless otherwise specified) Output Capacitor = 10µF (see note)
Symbol
VO
Parameter
Output Voltage (IO = 5 to 500mA)
Min.
Typ.
Max.
8.74
28
Unit
V
8.26
8.5
VI
Input Supply Voltage (permanent)
Current Consumption
V
ICC
IO = 0mA
IO = 150mA
IO = 500mA
1.5
10
75
2
mA
mA
mA
20
100
KVI
KVO
Line Regulation (VI = 9.5 to 26V ; IO = 5mA)
Load Regulation (IO = 5 to 500mA)
- 15
- 70
5
15
70
mV
mV
- 40
VI - VO
Drop-out Voltage
IO = 150mA
IO = 500mA
0.18
0.4
V
V
0.6
SVR
IOS
Supply Voltage Rejection
(IO = 350mA, f = 120Hz, CO = 1µF, VI = 12 ± 5V)
60
dB
A
Short-circuit Output Current
0.5
0.7
NOTE : Applications Hints
The output capacitor has a directinfluence on output voltage stability. A 10 µF capacitor will provide satisfactory results. There is no upper limit
on this capacitor value.
If necessary, this value can be reduced down to1 µF ; however, in such case, it should be checked that output capacitor keeps sufficiently high
capacitance and low equivalent series resistance in the whole temperature range.
Such low capacitor value is not recommended either, if output current is to switch abruptly from very high to very low values (for instance, 400
mA to < 1 mA).
ELECTRICAL OPERATING CHARACTERISTICS
Tj = – 45oC to +125oC, VI = 14 .4V (unless otherwise specified) Output Capacitor = 10µF
Symbol
VO
Parameter
Output Voltage (IO = 5 to 500mA)
Min.
Typ.
Max.
Unit
V
8.16
8.5
8.84
dVO
dt
Output Voltage Drift
Tj = – 45 to +25°C
Tj = + 25 to +125°C
– 1
– 1.2
0
0
mV/°C
ICC
Current Consumption
IO = 0mA
IO = 150mA
IO = 500mA
2.5
25
120
mA
mA
mA
KVI
KVO
Line Regulation (VI = 9.5 to 26V, IO = 5mA)
Load Regulation (IO = 5 to 500mA)
- 25
- 90
25
90
mV
mV
VI - VO
Drop-out Voltage
IO = 150mA
IO = 500mA
0.2
V
V
0.8
IOS
IOM
Short-circuit Output Current
Maximum Output Current
0.4
0.5
A
A
2/4
TEA7685
TYPICAL DIAGRAM
IN
1
2
OUT
0.1µF
3
10µF
GND
3/4
TEA7685
PACKAGE MECHANICAL DATA
3 PINS - PLASTIC TO220
L6
L7
Dia.
L5
L2
L3
Millimeters
Typ.
Inches
Typ.
Dimensions
Min.
Max.
4.8
Min.
Max.
0.189
0.054
0.110
0.053
0.022
0.041
0.055
0.205
0.409
0.409
A
C
1.37
2.8
D
2.4
1.2
0.094
0.047
0.014
0.031
0.045
0.195
D1
E
1.35
0.55
1.05
1.4
0.35
0.8
F
F2
G
1.15
4.95
5.08
5.21
10.4
10.4
0.200
H2
H3
L2
L3
L5
L6
L7
Dia.
10.05
0.396
16.2
26.7
0.638
1.051
26.3
2.6
27.1
3
1.035
0.102
0.594
0.236
0.144
1.067
0.118
0.622
0.260
0.152
15.1
6
15.8
6.6
3.65
3.85
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of suchinformation nor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwiseunder anypatent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to
the I2C Standard Specifications as defined by Philips.
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4/4
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