MCZ34702EWR2 Freescale Semiconductor, MCZ34702EWR2 Datasheet
MCZ34702EWR2
Specifications of MCZ34702EWR2
Related parts for MCZ34702EWR2
MCZ34702EWR2 Summary of contents
Page 1
... Reset with programmable power-ON delay • Pb-free packaging designated by suffix code trademark of Philips Corporation. Optional Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2007. All rights reserved. MCZ34702EW/R2 2 6.0 V Input 34702 ...
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... LDRV CS To Reset Linear Control Regulator Control LDO I Lim LFB LCMP Power Q4 Seq UVLO VBST VBST BOOT VIN2 (2) Buck Q1 HS and LS Driver SW (2) Q2 PGND (2) To Reset 0.8 V Control Amp + - INV VOUT VOUT Power Q3 Seq Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Power Ground 12 VBD Boost Drain 13 VBST Boost Voltage 14 BOOT Bootstrap 15 SDA Serial Data 16 SCL Serial Clock 17 LCMP Linear Compensation 18 LFB Linear Feedback 19 LDO Linear Regulator Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS FREQ 1 32 INV 2 31 OUT IN2 4 29 IN2 ...
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... LDO external resistor. This pin sets the CLKSYN pin as either an oscillator output or a synchronization input 2 pin. The CLKSEL pin is also used for the I C address selection. Oscillator output/synchronization input pin. Analog Integrated Circuit Device Data page 16. DDI , or grounded Freescale Semiconductor ...
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... Pin Voltage at CLKSEL, ADDR, RT, FREQ, VDDI, CLKSYN, INV, LFB (1) ESD Voltage Human Body Model Machine Model Notes 1. ESD1 testing is performed in accordance with the Human Body Model (C accordance with the Machine Model (C Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Symbol IN1 IN2 V SW ...
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... Thermal resistance between the die and the printed circuit board per JEDEC JESD51-8. Board temperature is measured on the top surface of the board near the package. 34702 6 Symbol T STG (2) ( PPRT T JMAX R θJA R θ Value Unit °C -65 to 150 °C Note 3 °C 125 °C °C °C Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... INV = 0.8V Notes 7. Design information only. This parameter is not production tested. 8. VOUT refers to load current on output switcher. Analog Integrated Circuit Device Data Freescale Semiconductor ≤ ≤ T 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3V using A 33), unless otherwise noted. ...
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... Symbol R DS(ON) R DS(ON) I LIMH I M3_LIM R DS(ON) ( SDHYS Min Typ Max Unit mΩ – 60 – mΩ – 65 – -7.0 -4.7 -4 0.75 – 2.0 Ω – – 1.9 150 170 190 °C – 10 – °C Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... IOEA Refers to Error Amplifier Output Current. 13. IOL Refers to IO Low Level Threshold Voltage Current 14. IOH Refers to IO High Level Threshold Voltage Current Analog Integrated Circuit Device Data Freescale Semiconductor ≤ ≤ T 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3V using A 33), unless otherwise noted ...
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... A 0.75 – 2.0 Ω – – 1.9 µF – 10 – – 5.0 – mΩ 150 170 190 °C – 10 – °C Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... SDA Low-level Output Voltage, 3.0mA Sink Current (17) SDA, SCL Capacitance Notes 17. Design information only. This parameter is not production tested. Analog Integrated Circuit Device Data Freescale Semiconductor ≤ ≤ T 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3V using A 33), unless otherwise noted. ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... SCL. 23. VIH = High level voltage on I²C bus and VIL = Low level voltage on I²C bus Analog Integrated Circuit Device Data Freescale Semiconductor ≤ ≤ T 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3V using A 33), unless otherwise noted ...
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... C bus specification for further details. Figure 4. Definition of Time on the I ELECTRICAL PERFORMANCE CURVES 450 400 350 300 250 200 150 100 50 100 50 100 t HD-STA t t SU-STO SU-STA 2 C Bus Ω) Rf (kOhm ) Figure 6. f vs. Rf OSC Analog Integrated Circuit Device Data Freescale Semiconductor 22 ...
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... Load Current [A] Figure 7. Switcher Efficiency vs. Load Current 5.00 4.75 4.50 4.25 4.00 3.75 3.50 3.25 3.00 -50 0 Temperature (C°) Figure 8. Switcher I vs. Temperature LIM Analog Integrated Circuit Device Data Freescale Semiconductor 0.83 0.82 0.81 0.80 0.79 0.78 0.77 -50 2 100 ...
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... RS. LINEAR DRIVE PIN (LDRV) LDO gate drive of the external pass N-channel MOSFET. INPUT VOLTAGE 1 PIN (VIN1) The input supply pin for the integrated circuit. The internal circuits of the IC are supplied through this pin. Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Inverted Power Sequencing Power Sequencing, Regulators Enabled Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION FUNCTIONAL PIN DESCRIPTION RESET TIMER PIN (RT) The Reset Timer power-up delay (RT) pin is used to set the delay between the time when the LDO and switcher outputs are active and stable and the ...
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... IC, while the normal operation with reduced current limit greatly reduces the switching noise and therefore improves the overall EMC performance. See the boost regulator output voltage and inductor current waveforms (picture not to scale). Analog Integrated Circuit Device Data Figure 12 for Freescale Semiconductor ...
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... This arrangement allows BST the 34702 to operate from very low input voltage and also comply with the power sequencing requirements of the supplied microcontroller. Analog Integrated Circuit Device Data Freescale Semiconductor Booster Output Voltage Fault Timer t FAULT = Figure 13. Switching Regulator Current Limit To avoid destruction of the supplied circuits, the switching regulator has a current limit with retry capability ...
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... C bus sending a watchdog programming Table 2 C bus, the will become active RST Window Open for Watchdog Clear Watchdog Period Window Watchdog Window Open for Watchdog Clear Watchdog Period 2 C Bus – See Table 4 Time-Out Watchdog Analog Integrated Circuit Device Data Freescale Semiconductor 8, ...
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... When the watchdog is cleared, the timer is reset and starts a new timeout period. If Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION the watchdog is not cleared during the open window time, the ...
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... RST GND VBST BOOT 1.5 V EN1 VDDH (I/Os) SW EN2 VOUT CLKSYN CLKSEL PGND FREQ INV VDDI ∆V = 2.1 V Max. Lead 1.5 V Core Voltage ∆V = 2.1 V ∆V = 0.4 V Max. Lead Max. Lag in +3.3V Supply System Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Power Sequencing Mode, the linear regulator (LDO) output provides the core voltage for the microprocessor, as illustrated in Figure 19. Table 5 shows the Power Sequencing Mode selection. Analog Integrated Circuit Device Data Freescale Semiconductor 3.3 V VDDH (I/Os) MCU 5.0 V 1.5 V VDDL (Core) Optional ∆ ...
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... I/O voltage by more than 0.4V. By the intrinsic operation of the switcher, the load capacitor is discharged rapidly through the buck high side MOSFET to VIN. 3. VOUT shorted to supply. No load protection. 34702 is protected by current limit and thermal shutdown. Analog Integrated Circuit Device Data Freescale Semiconductor Ω LDO sink 17, page 22). ...
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... The 3.3V supplies the microprocessor I/O voltage, the LDO supplies core voltage (e.g., 1.5V nominal), and the switcher VOUT operates independently. Power sequencing Analog Integrated Circuit Device Data Freescale Semiconductor depends only on the normal LDO intrinsic operation to control the Pass MOSFET. Power-up When VIN is rising, initially LDO is below the regulation point and the Pass MOSFET is on ...
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... OUT output shorted to ground. Figure 21 illustrates the flexible Table 6 provides the Bits MSB LSB Fixed Address Selectable Address ADDR Pin A1 A0 Low 0 0 High (Open Low 1 0 High (Open Figure 22 0 Ack DATA Ack Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor Table 8. Command Byte Definitions Watchdog Programming (As a 2nd Command Byte) Table 7. LSB Write W W Notes 24. The watchdog timer is turned ON automatically after receiving any other valid command byte changing the watchdog time. Security in Writing Commands ...
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... First Command for Watchdog Programming Address Field Value Field: Time-out WD = 320 ms (Window OFF) Setting Ack Write Slave Address Ack 0 First Command for Voltage Margining Address Field Value Field = LDO 5th Setting Margining Analog Integrated Circuit Device Data Freescale Semiconductor Ack P STOP Ack P STOP ...
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... Address Field Value Field: LDO LDO V = Nom Address Field Value Field: Switcher V OUT Figure 28. Data Transfer Example - LDO and Switcher Voltage Margining Analog Integrated Circuit Device Data Freescale Semiconductor Ack 0 1 Ack Ack P STOP = Nom FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS ...
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... generator ( --------------------------------------- - 2π creates a pole in the overall loop × --------------------------------------------------------------- - -------------------- - = ( ) V – V 2πR4C 1 × IN Ref F ------- ------------------------------- - + R4C the buck regulator reference voltage = 0.8V typ.) at the INV pin, is the ramp generated by the internal ramp m1 = 0.5V typ.). Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Selecting Buck Regulator Output Voltage The 34702 buck regulator output voltage can be set by selecting the right value of the resistors R1, R2 and R4, and can be determined from the following formula (see page 30 for the component references): Analog Integrated Circuit Device Data Freescale Semiconductor Where V Ref (V Ref ...
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... P ( )max thJC thCB thBA is the power MOSFET maximum is the power MOSFET maximum operating is the power MOSFET thermal resistance is the thermal resistance case-to-board, is the thermal resistance board-to-ambient of illustrates the 34702 switching regulator should be b Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Signal Ground Figure 32. 34702 Buck Regulator Layout Analog Integrated Circuit Device Data Freescale Semiconductor The same guidelines as those for the layout of the main switching buck regulator should be applied to the layout of the low power auxiliary boost regulator and to some extent, the power path of the linear regulator. ...
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... VBST VBST VIN2 VIN2 +3.3V (2) (2) Supply Voltage VOUT=1. 0.1uF 0.1uF 4 (2) ( 100 uF 100 uF PGND PGND 300k 300k (2) (2) INV INV 39k 39k R R 27k 27k b b 300 300 VOUT VOUT 470pF 470pF Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor GND 25 GND 24 GND 9 GND 8 BOOT 1 Figure 34. 34702 Typical Application Circuit TYPICAL APPLICATIONS 34702 35 ...
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... PACKAGE DIMENSIONS Important: For the most current package revision, visit number. 34702 36 PACKAGE DIMENSIONS www.freescale.com and perform a “keyword” search for the “98A” EW SUFFIX 32-PIN 98AARH99137A REVISION B Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor EW SUFFIX 32-PIN 98AARH99137A REVISION B PACKAGE DIMENSIONS 34702 37 ...
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... Changed the status from Advance Information to Final. • Added • Added Notes • Added MCZ34702EW/R2 to the ordering information 8/2007 7.0 • Updated the 98ARH99137A package drawing to Rev. B 34702 38 REVISION HISTORY Peak Package Reflow Temperature During Reflow (2) (3) and (2) (3) , Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...