MC34710 MOTOROLA | Alldatasheet
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Features
High-Current Adjustable 5.0 V/3.3 V Switching Regulator Low Noise User-Selectable 3.3 V/2.5 V/1.8 V/1.5 V Linear Regulator On-Chip Thermal Shutdown and Error Reset Circuitry Supervisory Functions (Power-ON Reset and Error Reset Circuitry) Sequenced I/O and Core Voltages Pb-Free Packaging Designated by Suffix Code EW EW (Pb-FREE) SUFFIX CASE 1324-02 32-LEAD SOICW-EP
ORDERING INFORMATION
Range (TA) Package PC34710EW/R2 0°C to 85°C 32 SOICW-EP ADJUSTABLE DUAL OUTPUT SWITCHING POWER SUPPLY
34710 Simplified Application Diagram
iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
34710 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Figure 1. 34710 Simplified Internal Block Diagram Freescale Semiconductor, Inc.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 34710 TERMINAL FUNCTION DESCRIPTION Terminal Terminal Name Formal Name Definition 1 RST Reset Reset input and output. This terminal is open drain. MODE0 MODE1 MODE2 Mode Control These input terminals control VI/O_OUT and VCORE output voltages. 512, 1422 NC No Connects No internal connection to this terminal. 13 GND Ground Ground. 23, 24 VCORE Core Voltage Regulator Output Core regulator output voltage.
25 LINB+ Core Voltage Regulator
Core regulator input voltage.
26 VI/O_OUT VI/O Switching Regulator
Feedback terminal for VI/O switching regulator and internal logic supply.
27 VSWITCH VI/O Switching Regulator
VI/O switching regulator switching output. 28 B+ Power Supply Input Regulator input voltage. 29 Vb Boost Voltage Boost voltage storage node. 30 CP2 Switching Capacitor 2 Charge pump capacitor connection 2. 31 CP1 Switching Capacitor 1 Charge pump capacitor connection 1. 32 Ct Reset Delay Capacitor Reset delay adjustment capacitor. Ct1 VSWITCH VI/O_OUT LINB+ VCORE VCORE NC NC NC NC NC NC Vb CP1 CP2 RST NC NC NC NC NC NC NC NC GND NC NC NC MODE2 MODE0 MODE1 Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
All voltages are with respect to ground unless otherwise noted. Rating Symbol Max Unit GLOBAL ABSOLUTE MAXIMUM RATINGS Input Power Supply Voltage IB+ = 0 A VB+ -0.3 to 36 V Terminal Soldering Temperature (Note 1) TSOLDER 260 °C Power Dissipation (Note 2) PD 3.0 W ESD Standoff Voltage Non-Operating, Unbiased, Human Body Model (Note 3) VESD1 ±2000 V Thermal Resistance Junction-to-Ambient (Note 4) Junction-to-Ambient (Note 2) Junction-to-Case RθJA RθJA RθJC 2.0 °C/W GLOBAL OPERATING RATINGS Operating Ambient Temperature TA 0 to 85 °C Operating Device Junction Temperature TJ 105 °C Input Power Supply Voltage IB+ = 0 A to 3.0 A VB+ 12 to 32 V Quiescent Bias Current from B+ (Note 5) VB+ = 12 V to 32 V IB+(q) 7.5 mA Operating Junction Temperature TJ -0 to 105 °C VI/O SWITCHING REGULATOR (Note 6) Maximum Output Voltage Startup Overshoot (COUT = 330 µF) MODE0 = 0 MODE0 = Open VI/O (STARTUP) 5.4 3.6 V Maximum Output Current TA = 0°C to 105°C IVI/O 1.2 A Notes 1. Soldering temperature limit is for 10 sec onds maximum duration. Not designed for immersion soldering. Exceeding these limits may cause malfunction or permanent damage to the device. 2. With 2.0 in 2 of copper headsink. 3. ESD1 testing is performed in accordance with the Human Body Model (C ZAP = 100 pF, RZAP = 1500 Ω). 4. With no additional heatsinking. 5. Maximum quiescent power dissipation is 0.25 W. 6. 12 V ≤ VB+ ≤ 32 V and -20°C ≤ TJ ≤ 145°C unless otherwise noted. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 34710 VCORE LINEAR REGULATOR (Note 7) Maximum Output Voltage Startup Overshoot (COUT =1 0 µF) (Note 8) MODE[2:0] = [0,x,0] MODE[2:0] = [0,x,Open] MODE[2:0] = [Open,x,0] MODE[2:0] = [Open,x,Open] VCORE(STARTUP) 3.6 2.7 2.0 1.65 V Maximum Output Current TJ = 0°C to 105°C, VLINB+ ≤ VCORE(NOM) + 0.8 V (Note 9) IVCORE 500 mA Notes 7. 12 V ≤ VB+ ≤ 32 V and -20°C ≤ TJ ≤ 145°C unless otherwise noted. 8. Refer to Table 1, page 10. 9. Pulse testing with low duty cycle used. MAXIMUM RATINGS (continued) All voltages are with respect to ground unless otherwise noted. Rating Symbol Max Unit Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions 4.75 V ≤ VIO ≤ 5.25 V, 12 V ≤ VB+ ≤ 32 V, and 0°C ≤ TJ ≤ 105°C 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 VI/O SWITCHING REGULATOR Logic Supply Voltage (IVI/O = 25 mA to 1.0 A) MODE0 = 0 MODE0 = Open VI/O 4.8 3.15 5.2 3.45 V Logic Supply Current VI/O = Nominal, Power Dissipation in Switching Regulator = 0.45 W IVI/O 0.025 1.0 A Output On Resistance VB+ = 12 V to 32 V RDS(ON) 0.5 TBD 2.0 Ω Soft Start Threshold Voltage MODE0 = X VI/O (SOFT) 2.5 V Current Limit Threshold (TJ = 25°C to 100°C) Normal Operation Soft Start, VI/O ≤ 2.5 V ILIMIT(OP) ILIMIT(SOFT) 2.1 1.3 3.2 1.8 A Minimum Voltage Allowable on VSWITCH Terminal TJ = 25°C to 100°C VVSWITCH(MIN) -0.5 V VCORE LINEAR REGULATOR Supply Voltage (IVCORE = 5.0 mA to 500 mA) (Note 10) MODE[2:0] = [0,x,0] MODE[2:0] = [0,x,Open] MODE[2:0] = [Open,x,0] MODE[2:0] = [Open,x,Open] VCORE(NOM) 3.15 2.35 1.71 1.425 3.45 2.65 1.89 1.575 V Supply Current VCORE = VCORE(NOM) IVCORE 1.0 500 mA VCORE Dropout Voltage VCORE = VCORE(NOM), IVCORE = 0.5 A IVCORE(DROPOUT) 0.8 V Regulator Input Voltage VCORE = VCORE(NOM), IVCORE = 0.5 A VLINB+ VCORE(NOM) + 1.0 10 V Normal Current Limit Threshold TJ = 25°C to 100°C, VLINB+ = VCORE(NOM) + 1.0 V ILIMIT 800 1000 mA Notes 10. Refer to Table 1, page 10. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 34710 MODE TERMINALS OPERATING VOLTAGES MODE Control Terminals Low Voltage TJ = 0°C to TBD°C, VB+ = 12 V to 32 V VIL(MODEn) 0.825 V MODE Control Terminals High Voltage TJ = 0°C to TBD°C, VB+ = 12 V to 32 V VIH(MODEn) 2.6 V MODE Control Terminals Voltage with Input Floating TJ = 0°C to TBD°C, VB+ = 12 V to 14 V TJ = 0°C to TBD°C, VB+ = 14 V to 32 V VMODE(FLOAT) 7.0 8.0 13.2 V SUPERVISOR CIRCUITRY Minimum Function VB+ for Charge Pump and Oscillator Running VB+(MIN)9 . 0 V Minimum VB+ for RST Assertion, VB+ Rising VB+(ASSERT)2 . 0 V RST Low Voltage VB+ = 2.0 V, IRST ≤ 5.0 mA VOL 0 . 4 V RST VI/O Threshold VI/O Rising VI/O Falling VI/O t+ VI/O t- VI/O(NOM) - 225 mV VI/O(NOM) - 80 mV V RST Hysteresis for VI/O VHYSVI/O 10 100 mV RST VCORE Threshold VCORE Rising VCORE Falling VCOREt+ VCOREt- VCORE(NOM) - 225 mV VCORE(NOM) - 80 mV V RST Hysteresis for VCORE VB+ =1 2Vt o3 2V VHYS CORE 10 100 mV VCORE - VI/O for VCORE Shutdown VB+ = 12 V to 32 V VCORE(SHUTDOWN) T B D V Thermal Shutdown Temperature TJ Rising TJ(TSD) 170 Overtemperature Hysteresis TJ(HYSTERESIS)2 0 T B D °C Vb CHARGE PUMP Boost Voltage (Note 11) VB+ = 12 V to 32 V, Ivb =0 . 5m A Vb VB++10 V VB++12 V V Notes 11. Bulk capacitor ESR ≤ 10 Ω. STATIC ELECTRICAL CHARACTERISTICS (continued) Characteristics noted under conditions 4.75 V ≤ VIO ≤ 5.25 V, 12 V ≤ VB+ ≤ 32 V, and 0°C ≤ TJ ≤ 105°C 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 Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
DYNAMIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions 4.75 V ≤ VIO ≤ 5.25 V, 12 V ≤ VB+ ≤ 32 V, and 0°C ≤ TJ ≤ 105°C 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 VI/O SWITCHING REGULATOR Duty Cycle D 45 55 % Switching Rise and Fall Time Load Resistance = 100 Ω, VB+ = 30 V tr, tf 25 ns Switching Rise and Fall Time Load Resistance = 100 Ω, VB+ = 30 V tr + tf 50 ns SUPERVISOR CIRCUITRY RST Delay Cdelay = 0.1 µF tdelay 48 82 ms RST Filter Time VB+ = 9.0 V tfilter 1.0 6.0 µs RST Fall Time CL = 100 pF, RPULLUP = 4.7 kΩ, 90% to 10% tf 125 ns External Low (Note 12) VI/O = 5.0 V tslpl (Note 13) 30 ns RST Recovery Time Before Next RST Input (Note 12) VI/O = 5.0 V tphsl 10 µs INTERNAL OSCILLATOR Charge Pump and VI/O Switching Regulator Operating Frequency VB+ = 9.0 V to 32 V fOP 140 260 kHz Notes 12. See Figure 2, RST Timing, page 9. 13. t slpl is an input. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
Figure 2. RST Timing Freescale Semiconductor, Inc.
the output voltage of both regulators. operating from the internal ~200 kHz oscillator. driver with a pullup and a CMOS digital input gate (Figure 3). parameters for responding to an externally applied RST signal. Figure 3. RST Terminal Interface Table 1. VI/O and VCORE(NOM) Regulator Open indicates terminal is not connected externally. Freescale Semiconductor, Inc.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 34710 Vb Charge Pump The high-side MOSFETs in the H-Bridge motor drivers and voltage regulators switch require a gate voltage in excess of VB+, which is provided by the Vb supply. The Vb regulator is a charge pump, switching directly off the VB+ supply, and uses an internal oscillator operating at 200 kHz. Internal Oscillator The internal oscillator provides timing for the charge pump and switching regulators.
APPLICATIONS
The power budget is described in Table 2. The maximum dissipation for this device is 1.0 W continuous. Table 2. Power Budget Freescale Semiconductor, Inc.
NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TO LERANCING PER ASME Y14.5M, 1994. 3. DATUMS B AND C TO BE DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 4. THIS DIMENSION DOES NO T INCLUDE MOLD FLASH, PROTRUSION OR GATE BURRS. MOLD FLASH, PROTRUSION OR GATE BURRS SHALL NOT EXCEED 0.15 MM PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 5. THIS DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25 MM PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 6. THIS DIMENSION DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.4 MM PER SIDE. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSION AND ADJACENT LEAD SHALL NOT LESS THAN 0.07 MM. 7. EXACT SHAPE OF EACH CORNER IS OPTIONAL. 8. THESE DIMENSIONS APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.10 MM AND 0.3 MM FROM THE LEAD TIP. 9. THE PACKAGE TOP MAY BE SMALLER THAN THE PACKAGE BOTTOM. THIS DIMENSION IS DETERMINED AT THE OUTERMOST EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE BURRS AND INTER-LEAD FLASH, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE PLASTIC BODY. CL10.9 7.4 16 17 0.10 A 2.35 SEATING PLANE 0.9 SECTION B-B 0.65 R0.08 MIN B A PIN 1 ID (0.29) 0.38 0.25 (0.203) PLATING BASE METAL SECTION A-A ROTATED 90 CLOCKWISE° 0.19 0.22
0.13 M CA M B
A C7.6 11.1 10.3 5.15 A 32X 30X 2.65 0.3 A 2X 16 TIPS B C BB 0.29 0.13 0.50° 0°0.25 GAUGE PLANE MIN EW (Pb-FREE) SUFFIX 32-LEAD SOICW-EXPOSED PAD PLASTIC PACKAGE CASE 1324-02 ISSUE A Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 34710 NOTES Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 34710 NOTES Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
HOW TO REACH US: USA/EUROPE/LOCATIONS NOT LISTED: JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center Motorola Literature Distribution 3-20-1 Minami-Azabu. Minato-ku, Tokyo 106-8573, Japan P.O. Box 5405, Denver, Colorado 80217 81-3-3440-3569 1-800-521-6274 or 480-768-2130 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong 852-26668334 HOME PAGE: http://motorola.com/semiconductors MC34710 Information in this document is provided solely to enable system and software implem enters to use Motorola 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. Motorola reserves the right to make changes without further noti ce to any products herein. Motorola makes no warranty, represen tation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola 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 which may be provided in Motorola data sheets and/or s pecifications can and do vary in different applications and actual performance may var y over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola pro ducts are not designed, intended, or authorized for use as compon ents 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 Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and di stributors harmless against all claims, costs, damages, and expenses , and reasonable attorney fees arising out of, directly or indirectly, any claim of persona l injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service names are t he property of their respective owners. © Motorola, Inc. 2004 Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...