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PDF 33288 Data sheet ( Hoja de datos )
| Número de pieza | 33288 | |
| Descripción | Solid State Relay | |
| Fabricantes | Freescale Semiconductor | |
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Advance Information
Document Number: MC33288
Rev 6.0, 5/2006
Solid State Relay for
Automotive Flasher
Applications
This device is a Dual High-Side Power Switch dedicated for
automotive flasher applications. In comparison with mechanical
solutions, this device offers higher reliability as well as protection and
diagnostic features.
The device consists of two 25 mΩ Rdson fully protected high side
switches, in a surface mount power package. It interfaces directly
with a microcontroller and includes a current recopy function in order
to allow the detection of a failed lamp in the application.
Features
• Junction Temperature Range from -40°C to 150°C
• Operating Voltage Range from 8.0 V to 35 V
• Maximum Breakdown Voltage greater than 40 V
• 25 mΩ RDS(ON) per Channel at 25°C
• 8.0 Amps Nominal Current per Channel
• 1.2 W Warning Lamp Driver
• Overtemperature Protection with Hysteresis
• Open Load Detection in ON State
• Current Recopy to Monitor Lamp Output Current
33288
SOLID STATE RELAY
DH SUFFIX
98ASH70273A
20-LEAD HSOP
ORDERING INFORMATION
Device
MC33288DDH/R2
Temperature
Range (TA)
-40°C to 125°C
Package
20 HSOP
• Standby Current < 10 µA at VBAT < 14 V
Simplified Application Diagram
5.0 V VPWR
33288
VBAT
ST OUT-1
MCU
IN-1 WLP
IN-2
1.2 W
21 W 21 W 5 W 21 W 5 W
Cur R
OUT-2
GND
21 W 21 W 5 W 21 W 5 W
Figure 1. 33288 Simplified Internal Block Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
1 page  
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Charactersitics(continued)
Characteristics noted under conditions 4.5 V ≤ VDD ≤ 5.5 V, 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TA ≤ 125°C, unless otherwise noted.
Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol Min Typ Max Unit
Current Recopy Ratio
VOUT > VBAT -1.0 V, IOUT from 2.0 A to 4.0 A
TJ -40°C to 105°C, VBAT 9.0 V to 16 V
CR µA
– 1/1000 –
Current Recopy Ratio Accuracy
VOUT > VBAT -1.0 V, IOUT from 2.0 A to 4.0 A
TJ -40°C to 105°C, VBAT 9.0 V to 16 V
CR-AC
%
-10 – 10
Extended Current Recopy Ratio
VOUT > VBAT -1.0 V, IOUT from 1.0 A to 8.0 A
CREX
%
– 1/1000 –
Extended Current Recopy Ratio Accuracy
VOUT > VBAT -1.0 V, IOUT from 1.0 A to 8.0 A
CREX-AC
%
-20 – 20
Current Recopy Clamp Voltage At 10mA
Nominal Flasher Frequency Operation
Frequency Operation
Nominal Flasher Duty Cycle Operation
WLP Output Drain to Source on Resistance
IOUT = 100 mA, VBAT > 9.0 V and TJ = 25°C
VCLST
5.5
–
7.0 V
FFL – 1.5 – Hz
FOP – – 100 Hz
DCFL
– 50 – %
RWON
–
Ω
– 3.2
WLP Output Drain to Source on Resistance
IOUT = 100 mA, VBAT > 9.0 V and TJ = 125°C
RWON
–
Ω
– 5.0
WLP Output Current Limitation
VOUT = 0 V
IWLIM
mA
– 500 –
WLP Thermal Shutdown
TWSHUT
150
–
– °C
Analog Integrated Circuit Device Data
Freescale Semiconductor
33288
5
5 Page 
TYPICAL APPLICATIONS
OPERATIONAL MODES
TYPICAL APPLICATIONS
Battery
CB
VVbBaAt T
33288
OUT2
OUT2
OUT2
21+5W
Trailor Left Side 21+21+5W
Left Side
5.0 V
CHANNEL 2
Left
10 K
Charge
Pump
Over
Temp
Over
Current
I/O R IN2
MCU
I/O
R
IN1
I/O R ST
A/D R
CUR R
St-2 Cr 2
Input
Trigger
St-1 Fault
Monitoring
VBATC
Open
Load
CHANNEL 1
Right
Current
Recopy
CR 1
Current Copy
Resistor
RCR
R : 10 k typical
RCR : 500 Ω to 1 kΩ typical
CB : 100 nF to 470 nF
RWLP : 100 Ω typical
GND
IN2 Drive &
Protect
Warning Lamp
Driver
VBAT
WLP
RWLP
1.2 W
VbBAaTt
OUT1
OUT1
OUT1
21+21+5W
Right Side
21+5W
Trailor Right Side
Figure 7. Typical Application - Automotive Flasher
Analog Integrated Circuit Device Data
Freescale Semiconductor
33288
11
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| PDF Descargar | [ Datasheet 33288.PDF ] | |
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