|
|
PDF TLE4470G Data sheet ( Hoja de datos )
| Número de pieza | TLE4470G | |
| Descripción | Dual Low-Drop Voltage Regulator | |
| Fabricantes | Siemens Semiconductor Group | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TLE4470G (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
|
No Preview Available !
Dual Low-Drop Voltage Regulator
TLE 4470
Features
• Stand-by output 180 mA; 5 V ± 2 %
• Adjustable reset switching threshold
• Main output 350 mA; tracked to the stand-by output
• Low quiescent current consumption in standby mode
• Disable function for main output
• Wide operation range: up to 45 V
• Very low dropout
• Power-On-Reset circuit sensing the stand-by voltage
• Early warning comparator for supply undervoltage
• Output protected against short circuit
• Wide temperature range: – 40 °C to 150 °C
• Over-temperature protection
• Over-load protection
P-DSO-14-4
P-DSO-20-6
Type
TLE 4470 GS
TLE 4470 G
Ordering Code
Q67006-A9309
Q67006-A9308
Package
P-DSO-14-4 (SMD)
P-DSO-20-6 (SMD)
Functional Description
The TLE 4470 is a monolithic integrated voltage regulator with two very low-drop
outputs, a main output Q2 for loads up to 350 mA and a stand by output Q1 providing a
maximum of 180 mA. The device is available in both the P-DSO-14-4 and P-DSO-20-6
packages. It is designed to supply microprocessor systems under the severe conditions
of automotive applications and is therefore equipped with additional protection functions
against over load, short circuit and over temperature. Of course the TLE 4470 can also
be used in other applications where two stabilized voltages are required.
The device operates in the wide temperature range of – 40 °C to 150 °C.
The stand by regulator transforms an input voltage VI in the range of 5.6 V ≤ VI ≤ 45 V to
VQ1rated = 5 V within an accuracy of 2%, whereas the main regulator is adjustable. By use
of an external voltage divider the main output voltage can be set to VQ2 ≥ 5 V for the
Semiconductor Group
1
1998-11-01
1 page  
TLE 4470
Ι1 19
10 Q1
Reference
18
Ι2
3
DIS
V REF
Stand-by-Regulator
Main Regulator
V REF
Ιd
Reset
= V RADJTH
20
SI
Sense
=
V SITH
Pin numbers valid for P-DSO-20-6 (TLE 4470 G)
Figure 2
Block Diagram
Semiconductor Group
5
12,
13 Q2
11
ADJ2
2
D
8
RQ
30 kΩ
V Q1
1
RADJ
30 kΩ
9
SQ
4-7
14-17 GND
AEB02153
1998-11-01
5 Page 
TLE 4470
Electrical Characteristics (cont’d)
VI1 = VI2 = 14 V; VDIS < VDISL; – 40 °C < Tj < 150 °C; unless otherwise specified
Parameter
Symbol Limit Values Unit Test Condition
min. typ. max.
ESR of output
capacitance
RESRQ2
–
–
10 Ω at 10 kHz
Disable Input DIS
H-input voltage
threshold
L-input voltage
threshold
H-input current
L-input current
VDISH
VDISL
IDISH
IDISL
1.8 2.0 2.3 V –
1.4 1.7 2.0 V Output 2 active
–2 –1 1
µA
– 6 – 2 – 0.5 µA
2.3 V < VDIS < 7 V
0 V < VDIS < 1.4 V
Reset Timing D and Output RQ
Reset switching
threshold
Reset adjust
threshold
Reset output low
voltage
VRT 4.5 4.65 4.8 V
VRADJTH 1.25 1.35 1.45 V
VRQL – 0.15 0.3 V
Reset high voltage
Reset pull up resistor
Reset charging
current
VRQH
RRQ
Id
Upper timing
threshold
VDU
Lower timing
threshold
VDL
Reset delay time
Reset reaction time
td
tRR
4.5 – – V
20 30 45 kΩ
3 5 9 µA
1.5 1.8 2.2 V
0.3 0.4 0.55 V
12 15 20 ms
– 0.5 2.0 µs
RADJ connected to GND
VQ1 > 3.5 V
RRQ = 10 kΩ external
connected to VQ1;
VQ1 ≥ 1 V
–
Internal connected to VQ1
VD = 1 V
–
–
CD = 47 nF
CD = 47 nF
Semiconductor Group
11
1998-11-01
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet TLE4470G.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TLE4470 | Dual Low-Drop Voltage Regulator | Siemens Semiconductor Group |
| TLE4470 | Dual Low-Drop Voltage Regulator |  Infineon |
| TLE4470G | Dual Low-Drop Voltage Regulator | Siemens Semiconductor Group |
| TLE4470G | Dual Low-Drop Voltage Regulator | Infineon |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |