Order this document by MC33349PP/D The MC33349 is a monolithic lithium battery protection circuit that is designed to enhance the useful operating life of a one cell rechargeable battery pack. Cell protection features consist of internally trimmed charge and discharge voltage limits, charge and discharge current limit detection, and a virtually zero current sleepmode state when the cell is discharged. This protection circuit requires a minimum number of external components and is targeted for inclusion within the battery pack. This MC33349 is available in the SOT–23 6 lead surface mount package. • Internally Trimmed Charge and Discharge Voltage Limits • • • • • LITHIUM BATTERY PROTECTION CIRCUIT FOR ONE CELL SMART BATTERY PACKS SEMICONDUCTOR TECHNICAL DATA Charge and Discharge Current Limit Detection Virtually Zero Current Sleepmode State when Cells are Discharged Dedicated for One Cell Applications Minimum Components for Inclusion within the Battery Pack Available in a Low Profile Surface Mount Package Ordering Information shown on following page. 6 1 Typical One Cell Smart Battery Pack N SUFFIX PLASTIC PACKAGE CASE 1262 (SOT–23) 100 Ω 0.1 µF 5 PIN CONNECTIONS MC33349 6 0.01 µF DO 1 6 Gnd P– 2 5 Vcell CO 3 4 Ct 4 1 0.1 µF 3 2 (Top View) 1.0 kΩ This device contains 264 active transistors. This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. MOTOROLA ANALOG IC DEVICE DATA Motorola, Inc. 1998 Rev 0 1 MC33349 ORDERING INFORMATION Device Charge Overvoltage Threshold (V) Charge Overvoltage Hysteresis (mV) Discharge Undervoltage Threshold (V) Current Limit Threshold (mV) MC33349N–1 4.2 150 MC33349N–2 4.2 75 MC33349N–3 4.25 150 MC33349N–4 4.25 75 MC33349N–5 4.3 Operating Temperature Range Package TA = –40 40 to 85°C SOT 23 SOT–23 150 200 2.3 2 3 MC33349N–6 4.3 75 MC33349N–7 4.35 150 MC33349N–8 4.35 75 MC33349N–9 4.65 150 MC33349N–10 4.65 75 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ MAXIMUM RATINGS Ratings Input Voltage Discharge Gate Drive Output (Pin 1) to Gnd (Pin 6) Charge Gate Drive Common/Current Limit (Pin 2) to V cell (Pin 5) Charge Gate Drive Output (Pin 3) to Vcell (Pin 5) Overvoltage Delay Capacitor (Pin 4) to Gnd (Pin 6) Cell Voltage (Pin 5) to Gnd (Pin 6) Symbol Value VIR Unit V 5.0 to –1.0 1.0 to –18 1.0 to –18 5.0 to –1.0 5.0 to –1.0 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁ Thermal Resistance, Junction–to–Air N Suffix, SOT–23 Plastic Package, Case 1262 Operating Junction Temperature (Note 1) Storage Temperature 2 °C/W RθJA TBD TJ –40 to 85 °C Tstg –55 to 125 °C MOTOROLA ANALOG IC DEVICE DATA MC33349 ELECTRICAL CHARACTERISTICS (Ct = 0.01 µF, TA = 25°C, for min/max values TA is the operating junction temperature range that applies, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit – – – 4.35 4.25 200 – – – – – 2.30 2.28 – – IIIB – 20 – µA Overvoltage Delay Time (Vcell = 4.5 V) t(ovd) – 75 – ms Unervoltage Delay Time (Vcell = 2.1 V) t(uvd) – 13 – ms Cell Voltage Sampling Period t(smpl) – 2.0 – ms t(rep) – 26 – ms – – – 150 75 50 – – – – – – –150 –75 25 – – – ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ VOLTAGE SENSING Cell Charging Cutoff (Pin 5 to Pin 6) Overvoltage Threshold, VCell Increasing –1, –3 Suffix –2, –4 Suffix Overvoltage Hysteresis VCell Decreasing Cell Discharging Cutoff (Pin 5 to Pin 6) Undervoltage Threshold, VCell Decreasing –1, –3 Suffix –2, –4 Suffix Input Bias Current During Cell Voltage Sample (Pin 5) Cell Voltage Sampling Repitition Period Vth(OV) VH V Vth(UV) mV V CURRENT SENSING Discharge/Charge Current Limit (Pin 2 to Pin 6) Discharge Threshold Voltage –1, –2 Suffix –3, –4 Suffix Discharge Current Hysteresis Charge Threshold Voltage –1. –2 Suffix –3, –4 Suffix Charge Current Hysteresis Current Limit Delay Time (1.0 nF load @ CO & DO; to VDD/2) Charge Gate Drive Output (Pin 3) Discharge Gate Drive Output (Pin 1) Vth(dschg) DCH Vth(chg) CCH mV % mV % t(ccld) t(dcld) – – 10 2.0 – – µs µs Charge Gate Drive Output Low (Pin 3 to Pin 2 @ IO = 50 µA) Volc – 0.2 – V Charge Gate Drive Output High (Pin 5 to Pin 3 @ IO = –50 µA) Vohc – 0.1 – V Discharge Gate Drive Output Low (Pin 1 to Pin 6 @ IO = 50 µA) Vold – 0.2 – V Discharge Gate Drive Output High (Pin 5 to Pin 1 @ IO = –50 µA) Vohd – 0.2 – V – – 8.5 4.0 – – µA nA – 1.5 – V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ OUTPUTS TOTAL DEVICE Average Cell Current Operating (Vcell = 3.9 V) Sleepmode (Vcell = 2.0 V) Icell Minimum Operating Cell Voltage Vcell MOTOROLA ANALOG IC DEVICE DATA 3 MC33349 PIN FUNCTION DESCRIPTION ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin Symbol 1 DO This output connects to the gate of discharge MOSFET switch Q2 allowing it to enable or disable battery pack discharging. 2 P– This is a multifunction pin that is used to monitor cell charge and discharge current and to provide a gate turn–off path for charge switch Q1. A current limit fault is set when the combined voltage drop of charge switch Q1 and discharge switch Q2 exceeds the discharge current limit threshold voltage, Vth(dschg) above Pin 6 caused by a load; or charge current limit threshold voltage, Vth(chg) below Pin 6 caused by a charger. 3 CO This output connects to the gate of charge MOSFET switch Q1 allowing it to enable or disable battery pack charging. 4 Ct An external capacitor connects between this pin and ground (Pin 6) to set the sample timer frequency and overvoltage delay time. 5 Vcell This input connects to the positive terminal of the cell for voltage monitoring and provides operating bias for the integrated circuit. Internally, the Cell Voltage Sample Switch periodically applies this voltage to a resistor divider where it is compared by the Cell Voltage Detector to an internal reference. 6 Gnd This is the ground pin of the IC. 4 Description MOTOROLA ANALOG IC DEVICE DATA MC33349 ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ PROTECTION CIRCUIT OPERATING MODE TABLE Outputs MOSFET Switches Input Conditions Cell Status Circuit Operation Battery Pack Status Charge Q1 Discharge Q2 Both Charge MOSFET Q1 and Discharge MOSFET Q2 are on. The battery pack is available for charging or discharging. On On Charge Voltage Limit Fault: VPin 5 ≥ Vth(OV) for two consecutive samples Charge MOSFET Q1 is latched off and the cell is disconnected from the charging source. An internal current source pull–up is applied to divider resistors R1 and R2 creating a hysteresis voltage of VH. The battery pack is available for discharging. Discharge current limit protection is disabled. On to Off On Charge Voltage Limit Reset: VPin 5 < (Vth(OV) – VH) for one sample, or VPin 2 > Vth(dschg) Charge MOSFET Q1 will turn on when the voltage across the cell falls sufficiently to overcome hysteresis voltage VH, or when a load is applied to the battery pack. Off to On On Charge Current Limit Fault: VPin 2 ≤ (VPin 6 + Vth(chg)) Charge MOSFET Q1 is latched off and the cell is disconnected from the charger. Q1 will remain in the off state as long as VPin 6 exceeds VPin 2 by ≈ Vth(chg). The battery pack is available for discharging. Discharge current limit is disabled. On to Off On Charge Current Limit Reset: VPin 6 – VPin 2 < Vth(chg) The Sense Enable circuit will reset and turn on charge MOSFET Q1 when VPin 6 no longer exceeds VPin 2 by ≈ Vth(chg). This can be accomplished by either disconnecting the charger from the battery pack, or by connecting the battery pack to a load. Off to On On CELL CHARGING/DISCHARGING Storage or Nominal Operation: No current or voltage faults CELL CHARGING FAULT/RESET ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ CELL DISCHARGING FAULT/RESET Discharge Current Limit Fault: VPin 2 ≥ (VPin 6 + Vth(dschg)) Discharge MOSFET Q2 is latched off and the cell is disconnected from the load. Q2 will remain in the off state as long as VPin 2 exceeds VPin 6 by ≈ Vth(dschg). The battery pack is available for charging. Charge current limit protection is disabled. On On to Off Discharge Current Limit Reset: VPin 2 – VPin 6 < Vth(dschg) The Sense Enable circuit will reset and turn on discharge MOSFET Q2 when VPin 2 no longer exceeds VPin 5 by ≈ Vth(dschg). This can be accomplished by either disconnecting the load from the battery pack, or by connecting the battery pack to the charger. On Off to On Discharge Voltage Limit Fault: VPin 5 ≤ Vth(UV) for one sample Discharge MOSFET Q2 is latched off, the cell is disconnected from the load, and the protection circuit enters a low current sleepmode state. The battery pack is available for charging. Charge current limit protection is disabled. On On to Off Discharge Voltage Limit Reset: VPin 6 > (VPin 2 + 0.6 V) The Sense Enable circuit will reset and turn on discharge MOSFET Q2 when VPin 6 exceeds VPin 2 by 0.6 V. This can be accomplished by connecting the battery pack to the charger. On Off to On On Off On On Off Off TEST MODE – PIN 4/PIN 5 SHORT Continuous Charge Voltage Limit Comparator VPin 4 = VPin 5 = Vcell < Vth(chg) VPin 4 = VPin 5 = Vcell > Vth(chg) This condition occurs if Pin 4 and Pin 5 are accidently shorted together or purposely connected for rapid Charge Voltgae Limit Testing. MOSFET Q1 On to Off is not delayed and no hysteresis is required for reset. ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ FAULTY CELL Discharge Voltage Limit Fault: VPin 5 ≤ 1.5 V This condition can happen if the cell is defective (<1.5 V) or if a momentary discharge current causes the cell voltage to fall below Vth(UV) before a sample is taken. MOTOROLA ANALOG IC DEVICE DATA 5 MC33349 OUTLINE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 1262–01 (SOT–23) ISSUE O E 0.20 PIN 1 INK MARK IDENTIFIER M C B 0.05 M NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSION D DOES NOT INCLUDE FLASH OR PROTRUSIONS. FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.23 PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. DIMENSIONS D AND E1 ARE TO BE DETERMINED AT DATUM PLANE H. C S B S 5 A A1 A B A 0.10 E1 b 4 M 3 C A 2 6 e A e1 D 1 ÇÇÇÇÇ ÉÉÉÉÉ ÉÉÉÉÉ ÇÇÇÇÇ H L c q c1 b b1 DIM A A1 b b1 c c1 D E E1 e e1 L q MILLIMETERS MIN MAX 0.90 1.45 0.00 0.15 0.35 0.50 0.35 0.45 0.09 0.20 0.09 0.15 2.80 3.00 2.60 3.00 1.50 1.75 0.95 1.90 0.25 0_ 0.55 10 _ SECTION A–A 6 MOTOROLA ANALOG IC DEVICE DATA MC33349 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation 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 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. Motorola does not convey any license under its patent rights nor the rights of others. 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MOTOROLA ANALOG IC DEVICE DATA 7 MC33349 Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141, 4–32–1 Nishi–Gotanda, Shagawa–ku, Tokyo, Japan. 03–5487–8488 Customer Focus Center: 1–800–521–6274 Mfax: [email protected] – TOUCHTONE 1–602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, Motorola Fax Back System – US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 – http://sps.motorola.com/mfax/ HOME PAGE: http://motorola.com/sps/ 8 ◊ MC33349PP/D MOTOROLA ANALOG IC DEVICE DATA