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Part Number: MPC17531A
Description: The 17531A is a monolithic dual H-Bridge power IC ideal for portable electronic applications containin...
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MPC17531A
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DataSheet
General Description
MPC17531A General Description
The 17531A is a monolithic dual H-Bridge power IC ideal for portable electronic applications containing bipolar step motors and/or brush DC-motors (e.g., cameras and disk drive head positioners).
The 17531A operates from 2.0 V to 8.6 V using the internal charge pump, with independent control of each H-Bridge via parallel MCU interface. The device features built-in shoot-through current protection and an undervoltage utdown function.
The 17531A has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The 17531A has a low total RDS(ON) of 1.2 (max @ 25°C).
The 17531A efficiently drives many types of micromotors with low power dissipation owing to its low output resistance and high output slew rates. The H-Bridge outputs can be independently pulse width modulated (PWM'ed) at up to 200 kHz for speed/torque and current control.
MPC17531A Maximum Ratings
| Ratings |
Symbol |
Value |
Unit |
| Motor Supply Voltage |
VM |
-0.5 to 11.0 |
V |
| Charge Pump Output Voltage |
VCRES |
-0.5 to 14.0 |
V |
| Logic Supply Voltage |
VDD |
-0.5 to 5.0 |
V |
| Signal Input Voltage |
VIN |
-0.5 to VDD + 0.5 |
V |
| Driver Output Current Continuous Peak (1) |
IO IOPK |
0.7 1.4 |
A |
| ESD Voltage Human Body Model (2) Machine Model (3) |
VESD1 VESD2 |
±1200 ± 150 |
V |
| Operating Junction Temperature |
TJ |
-20 to 150 |
V |
| Operating Ambient Temperature |
TA |
-20 to 65 |
|
| Storage Temperature Range |
TSTG |
-65 to 150 |
|
| Thermal Resistance (4) |
RJA |
50 |
/W |
| Power Dissipation (5) WMFP QFN |
PD |
1.0 2.5 |
W |
| Terminal Soldering Temperature (6) |
TSOLDER |
260 |
|
Notes
1.TA = 25°C. Pulse width = 10 ms at 200 ms intervals.
2.ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 ).
3.ESD2 testing is performed in accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 ).
4.For QFN only, mounted on 37 x 50 Cu area (1.6 mm FR-4 PCB).
5.TA = 25°C.
6.Terminal soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. xceeding these limits may cause malfunction or permanent damage to the device.
MPC17531A Features
`Low Total RDS(ON) 0.8 W (Typ), 1.2 (Max) @ 25°C
`Output Current 0.7 A (DC)
`Shoot-Through Current Protection Circuit
`PWM Control Input Frequency up to 200 kHz
`Built-In Charge Pump Circuit
`Low Power Consumption
`Undervoltage Detection and Shutdown Circuit
`Power Save Mode with Current Draw 2.0 A
`Pb-Free Packaging Designated by Suffix Codes EV and EP
`Output Current 0.7 A (DC)
`Shoot-Through Current Protection Circuit
`PWM Control Input Frequency up to 200 kHz
`Built-In Charge Pump Circuit
`Low Power Consumption
`Undervoltage Detection and Shutdown Circuit
`Power Save Mode with Current Draw 2.0 A
`Pb-Free Packaging Designated by Suffix Codes EV and EP
MPC17531A Typical Application
Figure 8 shows a typical application for the 17531A. When applying the gate voltage to the CRES terminal from an external source, be sure to connect it via a resistor equal to, or greater than, RG = VCRES / 0.02 .
The internal charge pump of this device is generated from the VDD supply; therefore, care must be taken to provide sufficient gate-source voltage for the high-side MOSFETs when VM >> VDD (e.g., VM = 5.0 V, VDD = 3.3 V), in order to ensure full enhancement of the high-side MOSFET channels.
MPC17531A Connection Diagram
MPC17531A
PDF/DataSheet Download
- Datasheet: MPC17531A
- File Size: 514015 KB
- Manufacturer: FREESCALE [Freescale Semiconductor, Inc]
- Click here to Download
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