17511A FREESCALE | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 16
Technical content
Features
- 2.0 V to 6.8 V Continuous Operation
- Output Current 1.0 A (DC), 3.0 A (Peak)
- MOSFETs < 600 m Ω R DS(ON) @ 25°C Guaranteed
- 3.0 V/ 5.0 V TTL- / CMOS-Compatible Inputs
- PWM Frequencies up to 200 kHz
- Undervoltage Shutdown
- Cross-Conduction Suppression
- Low Power Consumption
- Pb-Free Packaging Designated by Suffix Codes EV and EP
Figure 1. 17511A Simplified Application Diagram
ORDERING INFORMATION
Range (TA) Package MPC17511AEV/EL -20°C to 65°C
16 VMFP
EP SUFFIX (PB-FREE) 98ARL10577D 24-PIN QFN VDD CRES C1L C1H C2L C2H IN2 IN1 EN OUT2 OUT1 GOUT VM GND MCU GIN MOTOR
5.0 V 15 V
2 Freescale Semiconductor
Figure 2. 17511A Simplified Internal Block Diagram
Figure 3. VMFP Pin Connections Table 1. VMFP Pin Function Description 1 C2L Charge Pump 2L Charge pump bucket capacitor 2 (negative pole). 2 C1H Charge Pump 1H Charge pump bucket capacitor 1 (positive pole). 3 C1L Charge Pump 1L Charge pump bucket capacitor 1 (negative pole). 4 VM Motor Drive Power Supply Driver power supply voltage input pin. 5 VDD Logic Supply Control circuit power supply pin.
6 IN1 Input Control 1 Control signal input 1
7 IN2 Input Control 2 Control signal input 2. 8 EN Enable Control Enable control signal input pin. 9 LGND Logic Ground Logic ground pin. 10 GIN Gate Driver Input LOW = True control signal for GOUT pin. 11 OUT1 H-Bridge Output 1 Driver output 1 (right half of H-Bridge). 12 PGND Power Ground Driver ground pin. 13 OUT2 H-Bridge Output 2 Driver output 2 (left half of H-Bridge). 14 GOUT Gate Driver Output Output gate driver signal to external MOSFET switch.
15 CRES Charge Pump Output Capacitor
Charge pump reservoir capacitor pin. 16 C2H Charge Pump 2H Charge pump bucket capacitor 2 (positive pole).
4 Freescale Semiconductor
Figure 4. QFN Pin Connections Table 2. QFN Pin Function Description 1, 2, 3, 4 VM Motor Drive Power Supply Driver power supply voltage input pin. 5, 6, 13, 18 NC No Connect This pin is not used. 7 VDD Logic Supply Control circuit power supply pin. 8 IN1 Logic Input Control 1 Control signal input 1. 9 IN2 Logic Input Control 2 Control signal input 2. 10 EN Enable Control Enable control signal input pin. 11 LGND Logic Ground Logic ground pin. 12 GIN Gate Driver Input LOW = True control signal for GOUT pin. 14 OUT1 Output 1 Driver output 1 (right half of H-Bridge). 15, 16 PGND Power Ground Driver ground pin. 17 OUT2 Output 2 Driver output 2 (left half of H-Bridge). 19 GOUT Gate Driver Output Output gate driver signal to external MOSFET switch. 20 CRES Pre-Driver Power Supply Pre-driver circuit power supply pin. 21 C2H Charge Pump 2H Charge pump bucket capacitor 2 (positive pole). 22 C2L Charge Pump 2L Charge pump bucket capacitor 2 (negative pole). 23 C1H Charge Pump 1H Charge pump bucket capacitor 1 (positive pole). 24 C1L Charge Pump 1L Charge pump bucket capacitor 1 (negative pole).
Analog Integrated Circuit Device Data Freescale Semiconductor 5 17511A
ELECTRICAL CHARACTERISTICS
Table 3. Maximum Ratings
- T A = 25°C, 10 ms pulse width at 200 ms intervals.
- ESD1 testing is performed in accordance with the Human Body Model (C ZAP = 100 pF, RZAP = 1500 Ω), ESD2 testing is performed in
accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 Ω).
- 37 x 50 x 1.6 [mm] glass EPOXY board mount.
- Soldering temperature limit is for 10 se conds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
- Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
- Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
MC33xxxD enter 33xxx), and review parametrics.
Analog Integrated Circuit Device Data
6 Freescale Semiconductor
STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 4. Static Electrical Characteristics reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
- I VDDSTBY includes current to the predriver circuit.
- IVDD includes current to the predriver circuit.
- Detection voltage is defined as when the output becomes high-impedance after V DD drops below the detection threshold. When the
gate voltage VCRES is applied from an external source, VCRES = 7.5 V.
- Input logic signal not present.
Analog Integrated Circuit Device Data Freescale Semiconductor 7 17511A DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 5. Dynamic Electrical Characteristics reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
- Time is defined between 10% and 90%.
- That is, the input waveform slope must be steeper than this.
- Time is defined between 90% and 10%.
- Time to charge C RES to 11 V after application of VDD.
Analog Integrated Circuit Device Data
8 Freescale Semiconductor
Figure 5. tPLH, tPHL, and tPZH Timing Figure 6. Low-Voltage Detection Table 6. Truth Table
Analog Integrated Circuit Device Data Freescale Semiconductor 9 17511A FUNCTIONAL DESCRIPTION INTRODUCTION FUNCTIONAL DESCRIPTION INTRODUCTION The 17511A is a monolithic H-Bridge power IC applicable to small DC motors used in portable electronics. The 17511A can operate efficiently with supply voltages as low as 2.0 V to as high as 6.8 V, and it can provide continuos motor drive currents of 1.0 A while handling peak currents up to 3.0 A. It is easily interfaced to low-cost MCUs via parallel 3.0 V- or 5.0 V-compatible logic. The device can be pulse width modulated (PWM-ed) at up to 200 kHz. The 17511A has four operating modes: Forward, Reverse, Brake, and Tri-State (High Impedance). Basic protection and operational features (direction, dynamic braking, PWM control of speed and torque, main power supply undervoltage detection and shutdown, logic power supply undervoltage detection and shutdown), in addition to the 1.0 A rms output current capability, make the 17511A a very attractive, cost-effective solution for controlling a broad range of small DC motors. In addition, a pair of 17511A devices can be used to control bipolar step motors. The 17511A can also be used to excite transformer primary windings with a switched square wave to produce secondary winding AC currents. As shown in Figure 2, 17511A Simplified Internal Block Diagram, page 2, the 17511A is a monolithic H-Bridge with built-in charge pump circuitry. For a DC motor to run, the input conditions need to be set as follows: ENable input logic HIGH, one INput logic LOW, and the other INput logic HIGH (to define output polarity). The 17511A can execute dynamic braking by setting both IN1 and IN2 logic HIGH, causing both low-side MOSFETs in the output H-Bridge to turn ON. Dynamic braking can also implemented by taking the ENable logic LOW. The output of the H-Bridge can be set to an open- circuit high-impedance (Z) condition by taking both IN1 and IN2 logic LOW. (refer to Table 6, Truth Table, page 8). The 17511A outputs are capable of providing a continuous DC load current of up to 1.2 A. An internal charge pump supports PWM frequencies to 200 kHz. The EN pin also controls the charge pump, turning it off when EN = LOW, thus allowing the 17511A to be placed in a power-conserving sleep mode. FUNCTIONAL PIN DESCRIPTION OUT1 AND OUT2 The OUT1 and OUT2 pins provide the connection to the internal power MOSFET H-Bridge of the IC. A typical load connected between these pins would be a small DC motor. These outputs will connect to either VM or PGND, depending on the states of the control inputs (refer to Table 6, Truth Table, page 8). PGND AND LGND The power and logic ground pins (PGND and LGND) should be connected together with a very low-impedance connection. CRES The CRES pin provides the connection for the external reservoir capacitor (output of the charge pump). Alternatively this pin can also be used as an input to supply gate-drive voltage from an external source via a series current-limiting resistor. The voltage at the CRES pin will be approximately three times the VDD voltage, as the internal charge pump utilizes a voltage tripler circuit. The VCRES voltage is used by the IC to supply gate drive for the internal power MOSFET H-Bridge. VM The VM pins carry the main supply voltage and current into the power sections of the IC. This supply then becomes controlled and/or modulated by the IC as it delivers the power to the load attached between OUT1 and OUT2. All VM pins must be connected together on the printed circuit board with as short as possible traces offering as low impedance as possible between pins. VM has an undervoltage threshold. If the supply voltage drops below the undervoltage threshold, the output power stage switches to a tri-state condition. When the supply voltage returns to a level that is above the threshold, the power stage automatically resumes normal operation according to the established condition of the input pins. IN1, IN2, AND EN The IN1, IN2, and EN pins are input control pins used to control the outputs. These pins are 5.0 V CMOS-compatible inputs with hysteresis. The IN1, IN2, and EN work together to control OUT1 and OUT2 (refer to Table 6, Truth Table). GIN The GIN input controls the GOUT pin. When GIN is set logic LOW, GOUT supplies a level-shifted high-side gate drive signal to an external MOSFET. When GIN is set logic HIGH, GOUT is set to GND potential. C1L AND C1H, C2L AND C2H These two pairs of pins, the C1L and C1H and the C2L and C2H, connect to the external bucket capacitors required by the internal charge pump. The typical value for the bucket capacitors is 0.1 µF.
Analog Integrated Circuit Device Data
10 Freescale Semiconductor
FUNCTIONAL PIN DESCRIPTION GOUT The GOUT output pin provides a level-shifted, high-side gate drive signal to an external MOSFET with CISS up to 500 pF. VDD The VDD pin carries the 5.0 V supply voltage and current into the logic sections of the IC. VDD has an undervoltage threshold. If the supply voltage drops below the undervoltage threshold, the output power stage switches to a tri-state condition. When the supply voltage returns to a level that is above the threshold, the power stage automatically resumes normal operation according to the established condition of the input pins.
Analog Integrated Circuit Device Data
12 Freescale Semiconductor
For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. EV (PB-FREE) SUFFIX 16-PIN VMFP PLASTIC PACKAGE 98ASH70109A ISSUE A
Analog Integrated Circuit Device Data Freescale Semiconductor 13 17511A PACKAGING PACKAGE DIMENSIONS PACKAGE DIMENSIONS (CONTINUED) EP (PB-FREE) SUFFIX 24-LEAD QFN NON-LEADED PACKAGE 98ARL10577D ISSUE A
Analog Integrated Circuit Device Data
14 Freescale Semiconductor
PACKAGE DIMENSIONS (CONTINUED)
Analog Integrated Circuit Device Data Freescale Semiconductor 15 17511A
REVISION HISTORY
REVISION DATE DESCRIPTION OF CHANGES 2.0 4/2007 • Implemented Revision History page
- Converted to Freescale format
- Added Peak Package Reflow Temperature During Re flow (solder reflow) parameter and Note with instructions from www.freescale.com to Maximum Ratings Table 3
Rev 2.0 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Freescale Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts. Freescale Semiconductor does not convey any license under its patent rights nor the rights of others. Freescale Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2007. All rights reserved. How to Reach Us: Home Page: www.freescale.com E-mail: support@freescale.com USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. Alma School Road Chandler, Arizona 85224 +1-800-521-6274 or +1-480-768-2130 support@freescale.com Europe, Middle East, and Africa: Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7
81829 Muenchen, Germany
+44 1296 380 456 (English) +46 8 52200080 (English) +49 89 92103 559 (German) +33 1 69 35 48 48 (French) support@freescale.com Japan: Freescale Semiconductor Japan Ltd. Headquarters ARCO Tower 15F 1-8-1, Shimo-Meguro, Meguro-ku, Tokyo 153-0064 Japan 0120 191014 or +81 3 5437 9125 support.japan@freescale.com Asia/Pacific: Freescale Semiconductor Hong Kong Ltd. Technical Information Center
2 Dai King Street
Tai Po, N.T., Hong Kong +800 2666 8080 support.asia@freescale.com For Literature Requests Only: Freescale Semiconductor Literature Distribution Center P .O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http://www.freescale.com or contact your Freescale sales representative. For information on Freescale’s Environmental Products program, go to http:// www.freescale.com/epp.