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Teilenummer | 33285 |
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Beschreibung | Dual High-Side TMOS Driver | |
Hersteller | Freescale Semiconductor | |
Logo | ||
Gesamt 13 Seiten www.DFaretaeSshceeatl4eUS.ceommiconductor
Advance Information
Document Number: MC33285
Rev. 5.0, 2/2007
Dual High-Side TMOS Driver
A single input controls the 33285 in driving two external high-side N-
Channel TMOS power FETs controlling incandescent or inductive
loads. Pulse Width Modulated (PWM) input control to 1.0 kHz is
possible. The 33285 contains a common internal charge pump used to
enhance the Gate voltage of both FETs.
An external charge capacitor provides access to the charge pump
output. Both external FETs are protected against inductive load
transients by separate internal source-to-gate dynamic clamps. The
power FETs are protected by the 33285 with short-circuit delay time of
800 µs. The device is designed to withstand reverse polarity battery
and load dump transients, encountered in automotive applications.
33285
HIGH-SIDE TMOS DRIVER
Features
• PWM Capability
• Power TMOS Number One (OUT1) Short-Circuit Detection and
Short-Circuit Protection
• Voltage Range 7.0 V ≤ 40 V
• Extended Temperature Range from -40°C ≤ 125°C
• Load Dump Protected
• Overvoltage Detection and Activation of OUT2 During
Overvoltage
• Single Input Control for Both Output Stages
• Capacitor Value of 100 nF Connected to Pin CP
• Analog Input Control Measurement Detection
• OUT1 LOAD Leakage Measurement Detection
• Pb-Free Packaging Designated by Suffix Code EF
D SUFFIX
EF SUFFIX (PB-FREE)
98ASB42564B
8-PIN SOICN
ORDERING INFORMATION
Device
MC33285D/R2
MCZ33285EF/R2
Temperature
Range (TA)
-40°C to 125°C
Package
8 SOICN
VCC
Input Control
33285
VCC DRN
CP
OUT2
IN OUT1
GND SRC
VPWR
Motor
Figure 1. 33285 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., 2007. All rights reserved.
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions TA from -40°C ≤ 125°C, VCC from 7 V ≤ 20 V, 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
OVER VOLTAGE AND OVER CURRENT
Load Dump Detection Time
Over Current Detection Time
OUT1 PIN 2, AND OUT2 PIN 4
Turn ON Time, OUT1: 8.0 nF, 10 µA; OUT2:16 nF, 10 µA
-7.0 V < VCC < 10 V, VOUT > VCC + 7.0
-10 V < VCC < 20 V, VOUT > VCC + 11
tLDDET
tOCDET
250
520
tON —
—
400 550
800 1080
—
— 1.5
1.5
µs
µs
ms
33285
6
Analog Integrated Circuit Device Data
Freescale Semiconductor
6 Page REVISION HISTORY
33285
12
Analog Integrated Circuit Device Data
Freescale Semiconductor
12 Page | ||
Seiten | Gesamt 13 Seiten | |
PDF Download | [ 33285 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
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