|
|
PDF CS8135YT5 Data sheet ( Hoja de datos )
| Número de pieza | CS8135YT5 | |
| Descripción | 5V/ 5V Low Dropout Dual Regulator with /ENABLE RESET | |
| Fabricantes | Cherry Semiconductor Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de CS8135YT5 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
CS8135
5V, 5V Low Dropout Dual Regulator
with RESET/ENABLE
Description
Features
The CS8135 is a low dropout, high cur-
rent, dual 5V linear regulator. The sec-
ondary 5V/10mA output is often used
for powering systems with standby
memory. Quiescent current drain is
less than 3mA when supplying 10mA
loads from the standby regulator.
In automotive applications, the CS8135
and all regulated circuits are protected
from reverse battery installations, as
well as two-battery jumps. During line
transients, such as a 60V load dump,
the 500mA output will automatically
shut down the primary output to pro-
tect both internal circuits and the load.
The standby regulator will continue to
power any standby load.
The CS8135 is packaged in a 5 lead
TO-220.
NOTE: The CS8135 is compatible with
the LM2935.
Absolute Maximum Ratings
Input Voltage
Operating Range .....................................................................-0.5V to 26V
Load Dump ............................................................................................60V
Internal Power Dissipation ..................................................Internally Limited
Junction Temperature Range (TJ)............................................-40¡C to +150¡C
Storage Temperature Range ....................................................-65¡C to +150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only)..........10 sec. max, 260¡C peak
Electrostatic Discharge (Human Body Model) ..........................................2kV
Block Diagram
Standby Output
VIN VOUT2
s Two Regulated Outputs
Primary Output 5V
± 5%; 500mA
Secondary Standby 5V
±5%; 10mA
s Low Dropout Voltage
(0.6V at 0.5A)
s ON/OFF Control
Option
s Low Quiescent Drain
(<3mA)
s RESET Option
s Protection Features
Reverse Battery
60V Load Dump
-50V Reverse Transient
Short Circuit
Thermal Shutdown
Overvoltage Shutdown
Package Option
5 Lead TO-220
Tab (Gnd)
Bandgap
Reference
+
-
Output
Current
Limit
Gnd
RESET/
ENABLE
Primary Output
Thermal
Shutdown
Over Voltage
Shutdown
+ + Output
Current
- - Limit
+
-
VOUT1
1 VIN
2 VOUT1
3 Gnd
1
4 RESET/
ENABLE
5 VOUT2
Rev. 10/21/97
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: [email protected]
Web Site: www.cherry-semi.com
1 A ¨ Company
1 page  
Definition of Terms
Dropout Voltage
The input-output voltage differential at which the circuit
ceases to regulate against further reduction in input volt-
age. Measured when the output voltage has dropped
100mV from the nominal value obtained at 14V input,
dropout voltage is dependent upon load current and junc-
tion temperature.
Input Voltage
The DC voltage applied to the input with respect to ground.
Input Output Differential
The voltage difference between the unregulated input
voltage and the regulated output voltage for which the
regulator will operate.
Line Regulation
The change in output voltage for a change in the input
voltage. The measurement is made under conditions of
low dissipation or by using pulse techniques such that the
average chip temperature is not significantly affected.
Load Regulation
The change in output voltage for a change in load current
at constant chip temperature.
Long Term Stability
Output voltage stability under accelerated life-test condi-
tions after 1000 hours with maximum rated voltage and
junction temperature.
Output Noise Voltage
The rms AC voltage at the output, with constant load and
no input ripple, measured over a specified frequency
range.
Quiescent Current
The part of the positive input current that does not con-
tribute to the positive load current. i.e., the regulator
ground lead current.
Ripple Rejection
The ratio of the peak-to-peak input ripple voltage to the
peak-to-peak output ripple voltage.
Temperature Stability of VOUT
The percentage change in output voltage for a thermal
variation from room temperature to either temperature
extreme.
Current Limit
Peak current that can be delivered to the output.
VIN 14V
60V
31V
Typical Circuit Waveform
26V
3V
14V
SWITCH OPEN
VOUT1 0V
5V
5V
2.4V
CLOSED
5V
0V
5V
OPEN
5V
0V
RESET 0V
VOUT2 5V
5V
2.4V
5V
System
Condition
Turn
On
Load
Dump
*Reference Test & Application Circuit
Low VIN
Line, Noise, Etc.
VOUT1
Short
Circuit
Thermal
Shutdown
Turn
Off
Circuit Description
Standby Output
The CS8135 is equipped with two outputs. The second out-
put is intended for use in systems requiring standby mem-
ory circuits. While the high current regulator output can be
controlled with the RESET lead described below, the stand-
by output remains on under all conditions as long as suffi-
cient input voltage is applied to the IC. Thus, memory and
other circuits powered by this output remain unaffected by
positive line transients, thermal shutdown, etc.
The standby regulator circuit is designed so that the quies-
cent current to the IC is very low (<3mA) when the other
regulator output is off.
In applications where the standby output is not needed, it
may be disabled by connecting a resistor from the standby
output to the supply voltage. This eliminates the need for
a capacitor on the output to prevent unwanted oscilla-
tions. The value of the resistor depends upon the mini-
mum input voltage expected for a given system. Since the
standby output is shunted with an internal diode zener,
the current through the external resistor should be suffi-
cient to bias VOUT2 up to this point. Approximately 60µA
will suffice, resulting in a 10k½ external resistor for most
applications.
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet CS8135YT5.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CS8135YT5 | 5V/ 5V Low Dropout Dual Regulator with /ENABLE RESET | Cherry Semiconductor Corporation |
| CS8135YTHA5 | 5V/ 5V Low Dropout Dual Regulator with /ENABLE RESET | Cherry Semiconductor Corporation |
| CS8135YTVA5 | 5V/ 5V Low Dropout Dual Regulator with /ENABLE RESET | Cherry Semiconductor Corporation |
| 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 |