mc34671aep/r2 Freescale Semiconductor, Inc, mc34671aep/r2 Datasheet
mc34671aep/r2
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mc34671aep/r2 Summary of contents
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... Pb-free packaging designated by suffix code Figure 1. 34671 Simplified Application Diagram * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2007-8. All rights reserved. Device MC34671AEP/R2 34671 VIN BAT C GND IN ISET ...
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INTERNAL BLOCK DIAGRAM VIN V IN Monitor PPR CHG EN Figure 2. 34671 Simplified Internal Block Diagram 34671 2 INTERNAL BLOCK DIAGRAM – Internal + Supply V REF Charge Control REF – REF VIN + – ...
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VIN PPR CHG EN Table 1. 34671 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on Pin Number Pin Name Pin Function 1 VIN Input 2 PPR Output 3 CHG ...
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ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Table 2. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device. Ratings ELECTRICAL RATINGS Input Voltage Range VIN Pin PPR ...
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STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics Characteristics noted under conditions V otherwise noted. Typical values noted reflect the approximate parameter means at V conditions, unless otherwise noted. Characteristic POWER INPUT (5) Input Voltage Range VIN Pin Supply Current ...
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ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics (continued) Characteristics noted under conditions V otherwise noted. Typical values noted reflect the approximate parameter means at V conditions, unless otherwise noted. Characteristic CHARGE THRESHOLDS Trickle-mode Rising Threshold Voltage Trickle-mode ...
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DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics Characteristics noted under conditions V noted. Typical values noted reflect the approximate parameter means at V unless otherwise noted. Characteristic END OF CHARGE EOC Filter Time OSCILLATOR Oscillation Frequency Analog Integrated Circuit ...
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ELECTRICAL CHARACTERISTICS ELECTRICAL PERFORMANCE CURVES 5.0 4.5 Battery Voltage 4.0 3.5 3.0 2.5 Charge Current 2.0 1 Charge Time min ( Figure 4. Complete Charge Cycle V = 5.0V, I =300mA CHG 4.3 ...
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R =8.80 k Ω R ISET 0.8 0.6 0.4 0.2 0.0 0 100 200 300 400 Charge Current (mA) Figure 10 Charge Current ISET V = 5.0V 25° 350 300 250 200 ...
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ELECTRICAL CHARACTERISTICS ELECTRICAL PERFORMANCE CURVES 600 550 500 450 400 350 300 -40 - Temperature Figure 16 Temperature DS(ON 4.0V, I =300mA, I BAT CHG BAT 4.20 4.15 4.10 4.05 4.00 3.95 3.90 -40 ...
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The MC34671 is a fully-integrated Li-Ion and Li-Polymer battery charger in a tiny package. It uses current, voltage and temperature control loops to regulate the charge current. It has 28V input voltage rating, which makes the handheld ...
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FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION MC34671 - Functional Block Diagram Integrated Supply Sensing & Control V IN Monitor Current Setting Current Monitor Die Temperature Feedback Integrated Supply Figure 20. 34671 Functional Internal Block Diagram INTEGRATED ...
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LOGIC LOGIC CONTROL AND STATUS INDICATION The logic control block determines the on and off of the charger. It takes the signals from the VIN Monitor, VIN-BAT Comparator, EOC, and the external enable signal, and Analog Integrated Circuit Device Data ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES FUNCTIONAL DEVICE OPERATION CHARGE CYCLE The MC34671 uses the standard charge profile with trickle, constant-current (CC), and constant-voltage (CV) charge modes, as shown in Figure 21. Both the CC and the CV charge modes are ...
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CHARGE CURRENT LIMITATION The charge current is limited by multiple factors. When the voltage difference between the input and the battery (V - ...
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FUNCTIONAL DEVICE OPERATION STATE DIAGRAM EN=high or V >V IN OVP or V < BAT OS V < 2.7V BAT V BAT FAST CHARGE Charger <4.10V BAT 34671 16 STATE DIAGRAM Charger: OFF V >V IN ...
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INPUT CAPACITOR The input capacitor is used to reduce the input voltage transient that may cause instability. A 1.0µF, X5R, 16V-rated ceramic capacitor is recommended for most applications. OUTPUT CAPACITOR For stable operation, an X5R ceramic capacitor with a minimum ...
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TYPICAL APPLICATIONS APPLICATIONS MCU INTERFACED CHARGER When the charger is used in handheld systems with MCU control, the MC34671 uses PPR to report the DC input status to the MCU. After the MCU pulls the EN pin to a logic ...
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For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGE DIMENSIONS EP SUFFIX 8-PIN 98ASA10774D REVISION 0 TYPICAL APPLICATIONS PACKAGE DIMENSIONS 34671 19 ...
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TYPICAL APPLICATIONS PACKAGE DIMENSIONS 34671 20 EP SUFFIX 8-PIN 98ASA10774D REVISION 0 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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REVISION DATE DESCRIPTION OF CHANGES 1/2008 • Initial Release 1.0 Analog Integrated Circuit Device Data Freescale Semiconductor REVISION HISTORY REVISION HISTORY 34671 21 ...
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... 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., 2007-8. All rights reserved. ...