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MC33926 Datasheet

5.0A throttle control H-bridge

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MC33926
5.0 A throttle control H-bridge
Rev. 11 — 31 October 2017
Data sheet: technical data
1 General description
The 33926 is a SMARTMOS monolithic H-bridge power IC designed primarily for
automotive electronic throttle control, but is applicable to any low-voltage DC servo motor
control application within the current and voltage limits stated in this specification.
The 33926 is able to control inductive loads with currents up to 5.0 A peak. RMS current
capability is subject to the degree of heatsinking provided to the device package. Internal
peak-current limiting (regulation) is activated at load currents above 6.5 A ±1.5 A. Output
loads can be pulse width modulated (PWM’ed) at frequencies up to 20 kHz. A load
current feedback feature provides a proportional (0.24 % of the load current) current
output suitable for monitoring by a microcontroller’s A/D input. A status flag output reports
undervoltage, overcurrent, and overtemperature fault conditions.
Two independent inputs provide polarity control of two half-bridge totem-pole outputs.
Two independent disable inputs are provided to force the H-bridge outputs to tri-state
(high-impedance off state). An inverted input changes the IN1 and IN2 inputs to low (true
logic).
2 Simplified application diagram
VDD
VPWR
MCU
SF
FB
IN1
IN2
INV
SLEW
D1
D2
EN
33926
VPWR
CCP
OUT1
OUT2
PGND
AGND
motor
Figure 1. Simplified application diagram
aaa-028113
3 Features and benefits
5.0 V to 28 V continuous operation (transient operation from 5.0 V to 40 V)
225 mΩ maximum RDS(on) at 150 °C (each H-bridge MOSFET)
3.0 V and 5.0 V TTL/CMOS logic compatible inputs


NXP Semiconductors Electronic Components Datasheet

MC33926 Datasheet

5.0A throttle control H-bridge

No Preview Available !

NXP Semiconductors
MC33926
5.0 A throttle control H-bridge
Overcurrent limiting (regulation) via an internal constant-off-time PWM
Output short-circuit protection (short to VPWR or ground)
Temperature dependent current limit threshold reduction
All inputs have an internal source/sink to define the default (floating input) states
Sleep mode with current draw < 50 µA (with inputs floating or set to match default logic
states)
4 Applications
Electronic throttle control (ETC)
Exhaust gas recirculation (EGR)
Turbo flap control
Industrial and medical pumps and motor control
5 Ordering information
This section describes the part numbers available to be purchased along with their
differences. Valid orderable part numbers are provided on the web. To determine the
orderable part numbers for this device, go to http://www.nxp.com and perform a part
number search.
Table 1. Orderable parts
Part number [1]
MC33926PNB
PC33926ES
Operating temperature
TA = −40 °C to 125 °C
Package
32-pin PQFN
28-pin HVQFN with
inspectable fillets
[1] To order parts in tape and reel, add the R2 suffix to the part number.
MC33926
Data sheet: technical data
All information provided in this document is subject to legal disclaimers.
Rev. 11 — 31 October 2017
© NXP B.V. 2017. All rights reserved.
2 / 30


Part Number MC33926
Description 5.0A throttle control H-bridge
Maker NXP
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MC33926 Datasheet PDF






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