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MC33385 Datasheet

Automotive Quad Low Side Driver

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MSOETMORICOLOANDUCTOFrReescale Semiconductor, IncM. C33385
Automotive Quad
Low Side Driver
QUAD LOW SIDE DRIVER
SEMICONDUCTOR
TECHNICAL DATA
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 application 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 the overcurrent, the short to GND, the
openload and the over-temperature.
RDSON of 250mper 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
DH SUFFIX
HSOP20 PACKAGE
PIN ASSIGNMENT
GND2 1
OUT2 2
N.C 3
NON2 4
SDI 5
CLK 6
NCS 7
NON4 8
OUT4 9
GND4 10
21
Heat sink
21
20 GND1
19 OUT1
18 N.C
17 NON1
16 SDO
15 NRES
14 VCC
13 NON3
12 OUT3
11 GND3
www.DataSheet4U.comORDERING INFORMATION
Device
Temperature
Range
Package
MC33385DH
-40°C to +125°C
HSOP20
Simplified Block Diagram
NON1
NON2
NON3
NON4
URES
RES
RES
URES
VCC
FR Reset
IRES
TRIGGER
S
R
VCC
Charge Pump
DRIVER
ON1
I-SCB filter
t-ISCB
dv/dt control
Over-temp. detection
OUT1
OUT2
OUT3
OUT4
SDI
VCC
CLK
NCS
VCC
IRES
Shift
Register
SDO
DataSheet4 U .com
Failure
Register
(FR)
ON1
I-OL filter
t-IOL
NON1
SCG filter
t-SCG
URES
RES
V ref OSC
Under Voltage
Reset
Reset
Oscillator
For More Information On This Product,
Go to: www.GfNreD escale.coNmRES
© Motorola,Inc 1999
Rev 5.1
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Motorola Electronic Components Datasheet

MC33385 Datasheet

Automotive Quad Low Side Driver

No Preview Available !

www.DataSheet4U.com
MC33385
Freescale Semiconductor, Inc.
MAXIMUM RATINGS TJ = - 40°C up to 150°C
Ratings
Symbols
Min
Max
SUPPLY VOLTAGE
Voltage Range
Vcc
- 0.3
7
OUTPUTS : 1...4
Continuous Output Voltage (With no reverse current)
Continuous Current
Peak Output Current
Clamped Energy at the Switching OFF (See figure 6)
INPUTS
Vout
Ioutc
Ioutp
W OFF
- 0.3
- 10
45
2.5
ISCBmax
70
Input Voltage (Inputs)
Input Protection Diode Current
OUTPUTS : SDO
VIN
- 0.3
Vcc + 0.3
IIN - 20 1
Input Voltage (Outputs)
Input Protection Diode Current
THERMAL RATINGS
Vo
- 0.3
Vcc + 0.3
Io - 20 1
Operating Junction Temperature
Tj - 40
Thermal Resistance : Junction-case (One powerstage in use)
Rthjc
Thermal Resistance : Junction-ambient (Device soldered on
printed circuit board)
R thja
www.DataSheet4U.comRANGE OF FUNCTIONALITY Tcase = - 40°C up to 125°C
Ratings
Symbols
Min
150
4.5
50
Max
SUPPLY VOLTAGE
Supply Voltage Range
JUNCTION TEMPERATURE
Junction Temperature Continuous (Continuous)
Junction Temperature Dynamical (Time limited)
OUTPUT CURRENT
Output Current Range
RESET BEHAVIOUR
Reset Changeable (at NRES-Pin)
Undervoltage Reset (Independent of NRES)
Active for Vcc = 0V to VccPRO
UNDERVOLTAGE PROTECTION
Protection active for Vcc=0V to Vccpro
OVER TEMPERATURE
Temperature Detection Threshold
Vcc
Tj1
Tj2
Iout
Vcc
VccRES
VccPRO
TOFF
4.5
- 40
VccRES
3.35
5.5
150
185
ISCBmax
5.5
3.95
1.5 4.0
155 185
Unit
V
V
A
A
mJ for 1ms
V
mA
V
mA
°C
K/W
K/W
Unit
V
°C
°C
V
V
V
°C
MC33385
DataSheet4 U .com
For More InfoMrOmTaOtRioOnLAOn This Product,
Go to: www.freescale.com
2
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Part Number MC33385
Description Automotive Quad Low Side Driver
Maker Motorola
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MC33385 Datasheet PDF






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