|
|
零件编号 | L7812AC | ||
描述 | PRECISION 1A REGULATORS | ||
制造商 | STMicroelectronics | ||
LOGO | |||
1 Page
L78
Positive voltage regulator ICs
Datasheet - production data
Features
Output current up to 1.5 A
Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18;
24 V
Thermal overload protection
Short circuit protection
Output transition SOA protection
2 % output voltage tolerance (A version)
Guaranteed in extended temperature range
(A version)
Description
The L78 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
D²PAK and DPAK packages and several fixed
output voltages, making it useful in a wide range
of applications.
These regulators can provide local on-card
regulation, eliminating the distribution problems
associated with single point regulation. Each type
embeds internal current limiting, thermal shut-
down and safe area protection, making it
essentially indestructible. If adequate heat
sinking is provided, they can deliver over 1 A
output current. Although designed primarily as
fixed voltage regulators, these devices can be
used with external components to obtain
adjustable voltage and currents.
November 2016
DocID2143 Rev 34
This is information on a product in full production.
1/54
www.st.com
Electrical characteristics
L78
VI = 11 V, IO = 1 A, TJ = 0 to 125 °C (L7806AC), TJ = -40 to 125 °C (L7806AB), unless
otherwise specifieda
Table 4: Electrical characteristics of L7806A
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VO Output voltage
VO Output voltage
VO Output voltage
∆VO (1) Line regulation
∆VO (1) Load regulation
Iq Quiescent current
TJ = 25 °C
IO = 5 mA to 1 A, VI = 8.6 to 19 V
IO = 1 A, VI = 19 to 21 V, TJ = 25 °C
VI = 8.6 to 25 V, IO = 500 mA, TJ = 25 °C
VI = 9 to 13 V
VI = 9 to 13 V, TJ = 25 °C
VI = 8.3 to 21 V, TJ = 25 °C
IO = 5 mA to 1 A
IO = 5 mA to 1.5 A, TJ = 25 °C
IO = 250 to 750 mA
TJ = 25° C
5.88 6 6.12
5.76 6 6.24
5.76 6 6.24
9 60
11 60
3 30
9 60
25 100
30 100
10 50
4.3 6
6
V
V
V
mV
mV
mV
mV
mV
mA
mA
∆Iq Quiescent current change
SVR
Vd
eN
RO
Isc
Iscp
∆VO/∆T
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
VI = 9 to 24 V, IO = 500 mA
VI = 8.6 to 21 V, TJ = 25 °C
IO = 5 mA to 1 A
VI = 9 to 19 V, f = 120 Hz, IO = 500 mA
IO = 1 A, TJ = 25 °C
TA = 25 °C, B =10 Hz to 100 kHz
f = 1 kHz
VI = 35 V, TA = 25 °C
TJ = 25 °C
0.8 mA
0.8 mA
0.5 mA
65 dB
2V
10 µV/VO
17 mΩ
0.2 A
2.2 A
-0.8 mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
8/54
a Minimum load current for regulation is 5 mA.
DocID2143 Rev 34
Electrical characteristics
L78
Refer to the test circuits, TJ = 0 to 125 °C, VI = 14 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specifieda
Table 12: Electrical characteristics of L7808C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VO
VO
VO
∆VO(1)
Output voltage
Output voltage
Output voltage
Line regulation
∆VO(1) Load regulation
Id Quiescent current
∆Id Quiescent current change
∆VO/∆T
eN
SVR
Vd
RO
Isc
Iscp
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
TJ = 25 °C
IO = 5 mA to 1 A, VI = 10.5 to 21 V
IO = 1 A, VI = 21 to 25 V, TJ = 25 °C
VI = 10.5 to 25 V, TJ = 25 °C
VI = 11 to 17 V, TJ = 25 °C
IO = 5 mA to 1.5 A, TJ = 25 °C
IO = 250 to 750 mA, TJ = 25 °C
TJ = 25 °C
IO = 5 mA to 1 A
VI = 10.5 to 25 V
IO = 5 mA
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 11.5 to 21.5 V, f = 120 Hz
IO = 1 A, TJ = 25 °C
f = 1 kHz
VI = 35 V, TJ = 25 °C
TJ = 25 °C
7.7 8 8.3
V
7.6 8 8.4
V
7.6 8 8.4
V
160
mV
80
160
mV
80
8 mA
0.5
mA
1
-0.8 mV/°C
52 µV/VO
56 dB
2V
16 mΩ
0.45 A
2.2 A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
16/54
a Minimum load current for regulation is 5 mA.
DocID2143 Rev 34
|
|||
页数 | 30 页 | ||
下载 | [ L7812AC.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
L7812A | PRECISION 1A REGULATORS | STMicroelectronics |
L7812AB | PRECISION 1A REGULATORS | STMicroelectronics |
L7812AC | PRECISION 1A REGULATORS | STMicroelectronics |
零件编号 | 描述 | 制造商 |
STK15C88 | 256-Kbit (32 K x 8) PowerStore nvSRAM | Cypress Semiconductor |
NJM4556 | DUAL HIGH CURRENT OPERATIONAL AMPLIFIER | New Japan Radio |
EL1118-G | 5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLER | Everlight |
DataSheet8.cn | 2020 | 联系我们 | 搜索 | Simemap |