Freescale Semiconductor
Advance Information
Document Number: MC33289
Rev. 4.0, 6/2006
Dual High-Side Switch 40 mΩ
The 33289 is a Dual High Side Switch (DHSS) dedicated for use
in automotive applications. It is designed to drive typical inductive
loads such as solenoid valves.
This device consists of two independent 40 mΩ R
DSON
MOSFET
channels plus corresponding control circuitry in a surface mount
package. The 33289 can be interfaced directly to a microcontroller for
input control and monitoring of diagnostic output.
Each switch offers independent protection and diagnosis during
overcurrent, overvoltage, and undervoltage conditions, as well as an
overtemperature shutdown feature.
A logic low on the Open Load Detect Enable pin (OLDE) minimizes
bias current drain by disabling the open load circuitry current source.
The device also has a very low quiescent current in standby mode.
33289
DUAL HIGH-SIDE SWITCH
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Designed to drive Automotive Inductive loads
Operating Voltage Range from 6.0 V to 27 V
Maximum Breakdown Voltage greater than 40 V
40 mΩ R
DSON
at 25°C
Overtemperature Protection with Hysteresis
Overcurrent protection
Under Voltage Shutdown
Over Voltage Shutdown
Open Load Detection in Off-State
Independent Diagnostic Output
ESD Protection 2.0 kV
Standby Current less than 5.0
µA
at V
BAT
below 14 V
DW SUFFIX)
98ASB42343B
20-PIN SOICW
ORDERING INFORMATION
Device
MC33289DW/R2
Temperature
Range (T
A
)
- 40°C to 125°C
Package
20 SOICW
VPWR
5.0 V
33289
VBAT
ST1
ST2
IN1
IN2
OLDE
OUT1
OUT2
GND
MCU
Figure 1. 33289 Simplified Application 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.
PIN CONNECTIONS
PIN CONNECTIONS
PIN ASSIGNMENT
VBAT
VBAT
OUT1
OUT1
VBAT
VBAT
NC
IN1
ST1
OLDE
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VBAT
VBAT
OUT2
OUT2
VBAT
VBAT
NC
IN2
ST2
GND
Figure 2. 33289 Pin Connections
Table 1. Pin Function Description
Pin Number
1, 2, 5, 6, 15, 16,
19, 20
Pin Name
VBAT
Pin Function
Supply Voltage
Definition
These are the power supply pins of the device. These pins are directly connected
with the lead frame of the package and are tied to the drain of the switching
MOSFET. These pins can be directly connected to the battery voltage. In addition
to their supply function, these pins participate to the thermal behavior of the
device in conducting the heat from the switching MOSFET to the printed circuit
board.
Pins 3 and 4 are the output 1 pins. Pins 17 and 18 are the output 2 pins. They are
directly connected to the source of the power MOSFET. These pins are used by
the control circuitry to sense the device output voltage. The R
DSON
is 40 mΩ max
per output at 25°C and will increase to a maximum of 75 mΩ at 150°C junction
temperature.
These are the device input pins which directly control their associated outputs.
The levels are CMOS compatible. When the input is a logic low, the associated
output MOSFET is in the off state. When input is high, the MOSFET is turned on
and the load is activated.
When both inputs are low, the device is in standby mode and its supply current is
reduced. Each input pin has an internal active pull down, so that it will not float if
disconnected.
9, 12
ST1
ST2
Status for Channel 1
Status for Channel 2
These pins are the channel 1 and channel 2 fault detection flags. Their internal
structure is an open drain architecture with an internal clamp at 6.0 V. An external
pull up resistor connected to V
DD
(5.0 V) is needed. This is an active low output.
If the device is in its normal condition the status lines will be high. If open load or
other fault occurs, the associated channel status flag will be pulled low. See
Functional Truth Table.
This pin is a digital input which enables the open load current diagnostic circuitry.
When OLDE is a logic low, the open load circuitry is not powered and the device’s
bias current draw is at a minimum. If OLDE is a logic high, the open load circuitry
is functional at the price of a higher bias current draw. OLDE pin has a pull down
resistor.
This is the GND pin of the device.
3, 4, 18, 17
OUT1
OUT2
OUTPUT Channel 1
OUTPUT Channel 2
8, 13
IN1
IN2
INPUT Channel 1
INPUT Channel 2
10
OLDE
Open Load Detection
Enable
11
GND
GROUND
33289
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
PIN CONNECTIONS
V
BAT
V
BAT
V
BAT
V
BAT
OUT2
OUT2
V
BAT
V
BAT
V
BAT
V
BAT
Thermal
Sensor
Over
Temp
ST2
IN2
CHANNEL 2
Charge
Pump
OUT1
OUT1
Input
Trigger
IN1
OLDE
ST1
U.V.& O.V.
Lockout
Open
Load
Over
Current
CHANNEL 1
GND
Figure 3. Simplified Internal Block Diagram
33289
Analog Integrated Circuit Device Data
Freescale Semiconductor
3
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 2. Maximum Ratings
All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or
permanent damage to the device.
Ratings
ELECTRICAL RATINGS
V
BAT
and V
BATC
Voltage: Continuous/Pulse
OUT1, OUT2 Voltage with Respect to GND: Continuous/Pulse
OUT1, OUT2 to V
BTAP
Voltage: Continuous
ST1, ST2 Voltage: Continuous/Pulse
IN1, IN2 Voltage: Continuous
IN1, IN2, ST1, ST2, OLDE Current
ESD all Pins
Human Body Model
(1)
Machine Model
(1)
Symbol
Value
Unit
V
BAT
V
OUT
V
OUT
V
ST
V
IN
I
IN
-0.3 to 41
-4.0 to 41
41
-0.3 to 7.0
-0.3 to 7.0
+/-4.0
V
V
V
V
V
mA
V
ESD1
V
ESD2
+/-2000
+/-200
V
V
THERMAL RATINGS
Operating Junction Temperature
Storage Temperature
Thermal Resistance Junction to Ambient
(2)
Thermal Resistance Junction to lead: Both Channel on
Thermal Resistance Junction to lead: One Channel on
Thermal Resistance Junction to lead: Logic Die
T
J
T
ST
R
THJA
R
THJL1
R
THJL2
R
THJL3
-40 to 150
-55 to 150
70
15
15
30
°C
°C
°C/W
°C/W
°C/W
°C/W
Notes
1. EDS1 testing is performed in accordance with the Human Body Model (Czap = 100 pF, Rzap = 1500
Ω)
EDS2 testing is performed in
accordance with the Machine Model (Czap = 100 pF, Rzap = 0
Ω)
2. With minimum PCB dimensions.
33289
4
Analog Integrated Circuit Device Data
Freescale Semiconductor
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics
Characteristics noted under conditions
7.0 V
≤
V
SUP
≤
18 V, - 40°C
≤
T
A
≤
125°C, GND = 0 V
unless otherwise noted. Typical
values noted reflect the approximate parameter means at
T
A
= 25°C
under nominal conditions unless otherwise noted.
Characteristic
POWER INPUT
Operating Voltage
Supply Current: Both Channels On
V
BAT
= 13.5 V; OLDE High
Supply Current: One Channel On
V
BAT
= 13.5 V; OLDE High
Supply Current: Both Channels Off
V
BAT
= 12.6 V; OLDE Low, T
J
< 125°C
Supply Current: Any State
V
BAT
= 13.5 V
Output Off state leakage current per channel
V
BAT
= 13.5 V; IN1, 2, OLDE low, Both output grounded,
T
J
< 125°C
Drain-Source On Resistance
V
BAT
> 10 V, T
AMB
= 25°C
Drain-Source On Resistance
V
BAT
> 10 V, T
AMB
= 150°C
Negative Inductive Clamp Voltage
I
OUT
= 1 A
INPUT CHARACTERISTICS
High Input Voltage (IN1, IN2)
High Input Voltage (OLDE)
Low Input Voltage (IN1, IN2, OLDE)
Logic Input Hysteresis IN1, IN2
Logic Input Current
V
IN
= 1.5 V
Logic Input Current
V
IN
= 3.25 V
Logic Input Clamp Voltage
At I
IN
= 1 mA
Input Capacitance IN1, IN2
R
IN
= 47 kΩ @ 100 kHz
STATUS CHARACTERISTICS
Status Voltage
I
ST
= 1 mA; Output in fault
Status Leakage Current
V
ST
= 5 V
I
STLK
10
V
ST
0.5
µA
V
C
IN
80
V
CLMP
5.5
7.0
pF
I
IN
32.5
V
V
IH
V
OLDEH
V
IL
V
HYST
I
IN
3.0
µA
0.4
0.6
3.25
3.5
1.5
0.8
V
V
V
V
µA
V
CLAMP
-4.0
-1.0
R
DSON2
75
V
R
DSON1
40
mΩ
I
DSS
0.1
5.0
I
BAT_MAX
30
µA
I
BAT3
5.0
mA
I
BAT2
V
BAT
I
BAT1
6.0
5.0
10
µA
16
mA
6.0
V
OV
V
mA
Symbol
Min
Typ
Max
Unit
mΩ
33289
Analog Integrated Circuit Device Data
Freescale Semiconductor
5
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