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Teilenummer | 33385 |
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Beschreibung | Quad Low-side Driver | |
Hersteller | Freescale Semiconductor | |
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Gesamt 18 Seiten www.DFaretaeSshceeatl4eUS.ceommiconductor
Technical Data
Document Number: MC33385
Rev. 6.0, 11/2006
Quad Low-side Driver
The MC33385 is a Quad Low-side Driver fully protected switch. This
device is a general purpose Low-side Driver but has been especially
designed to operate in engine management applications as injector
driver or automotive gear box. It is interfaced directly with a
microcontroller for parallel control of the load and the individual output
diagnostic is done through a SPI. The diagnostic logic recognizes 4
failure types at each output stage: overcurrent, short to GND, open
load, and over-temperature.
33385
LOW-SIDE DRIVER
Features
• RDSON of 250mΩ per Output at 25°C
• Supplied from the main 5V VCC
• Input CMOS Compatible
• Diagnostic through SPI
• Nominal Current of 2A per Output
• Current Limitation at 3A with Automatic Turn Off
• Output Internally Clamped at 50V typ for Inductive Load Drive
• Junction to Case Thermal Resistance of 4.4°C/W
• Individual Output over Temperature Shutdown
• Pb-Free Packaging Designated by Suffix Code VW
DH SUFFIX
VW SUFFIX (PB-FREE)
98ASH70702A
20-PIN HSOP
ORDERING INFORMATION
Device
MC33385DH/R2
MC33385VW/R2
Temperature
Range (TA)
-40°C to 125°C
Package
20 HSOP
VPWR
Voltage
Regulator
MCU
33385
VCC
NCS
CLK
SDI
SDO
NRE
NON1
NON2
NON3
NON4
OUT1
OUT2
OUT3
OUT4
GND1-4
Figure 1. MC33385 Simplified Application Diagram
There are no disclaimers required on the Final publication of a data sheet.
© Freescale Semiconductor, Inc., 2007. All rights reserved.
ELECTRICAL CHARACTERISTICS
STATIC CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 7.0 V ≤ VSUP ≤ 18 V, -40°C ≤ TA ≤ 125°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol Min Typ Max Unit
Leakage Current 1 (NON = High, VOUT = 25V, VCC = 5V)
Leakage Current 2 (NON = High, VOUT = 16V, VCC = 1V)
Output Clamp Voltage (IOUT = 1A)
Matching Clamp Voltage (Between two outputs)
Clamped Energy at the Switching OFF (See Figure 9)
On Resistance (IOUT = 2A, TJ = 150°C, NON = LOW)
Output Low Voltage Limitation (IOUT = 150mA)
Output Capacitance (Guaranteed by design)
OUTPUTS REVERSE DIODE
IOUTL
10 µA
IOUTL2
10 µA
VCLP
45 50 58 V
VCLPM
VCLP-1
VCLP+1
V
WOFF
50
mJ for 1ms
RDSON
500 mΩ
VOUTLIM
65
220 mV
COUT
350 pF
Reverse Output Current
Reverse Peak current (1)
Reverse Voltage Drop
- IOUT = - 5A
- IOUT = - 2,5A
POWERSTAGE PROTECTION
IRD
IRDP
VRD1
VRD2
2,5
5.0
1.0
0.85
A
A
1.7 V
1.7 V
Short Current Limit
VCC Undervoltage
DIAGNOSTIC
ISCB
VCCMIN
3.0
3.35
5A
3.95 V
Short to GND Threshold Voltage for IOUT ≤ 2A
VREF
Open Load Threshold Current
IOL
Pull-up Resistor
ROL
Temperature Detection Threshold
TOFF
Notes
1. For t ≤ 2ms. Max. reverse current is limited to - 10A (for all outputs together)
0.390xVCC
10
2.0
155
0.435xVCC
50
8.0
185
V
mA
kΩ
°C
33385
6
Analog Integrated Circuit Device Data
Freescale Semiconductor
6 Page ELECTRICAL CHARACTERISTICS
ELECTRICAL PERFORMANCE CURVES
55,00
54,50
54,00
53,50
53,00
52,50
IOUT1=1A
52,00
51,50
51,00
-50
-25
0 25 50 75
T, TEMPERATURE (°C)
100 125
Figure 14. Output Clamp Voltage versus Temperature
400
VCC=4,5V
375 IOUT1=3A
350
325
300
275
250
225
200
-50
-25
0 25 50 75
T, TEMPERATURE (°C)
100 125
Figure 15. Rdson versus Temperature
24,50
24,25
24,00
23,75
23,50
23,25
23,00
22,75
22,50
-50 -25
0 25 50 75
T, TEMPERATURE (°C)
100 125
Figure 16. Open Load versus Temperature
3,78
3,77
3,76
3,75
3,74
3,73
3,72
3,71
3,70
-50
-25
0 25 50 75
T, TEMPERATURE (°C)
100 125
Figure 17. Vcc Undervoltage versus Temperature
4,60
4,50
4,40
VCC=5,5V
4,30
4,20
4,10
4,00
3,90
VCC=4,5V
3,80
-50 -25
0 25 50 75
T, TEMPERATURE (°C)
100 125
Figure 18. Short Current Limit versus Temperature
Figure 19. Inductive Switching
33385
12
Analog Integrated Circuit Device Data
Freescale Semiconductor
12 Page | ||
Seiten | Gesamt 18 Seiten | |
PDF Download | [ 33385 Schematic.PDF ] |
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