APL3213/A Li+ Charger Protection IC Features General Description • Input Over-Voltage Protection The APL3213/A provide Li+ charger protection against • • Over-Temperature Protection High Immunity of False Triggering over-voltage. The IC is designed to monitor input voltage. When input voltage is over the threshold, the IC removes • High Accuracy Protection Thresholds • Available in TDFN2x2-8 Package the power from the charging system by turning off an internal switch. The protection also have deglitch time • Lead Free and Green Devices Available (RoHS Compliant) • Compliance to IEC61000-4-2 (Level 4) against false triggering due to voltage spikes. The APL3213/A also provide Power-On-Reset (POR) function and over-temperature protection. The Power-On-Reset circuit monitors supply voltages to prevent wrong operations. The over-temperature protection limits the junction temperature below 140oC in case of short circuit +8kV (Contact Discharge) +15kV (Air Discharge) or overload conditions. Applications • Smart Phones and PDAs • Digital Still Cameras • Portable Devices Simplified Application Circuit 5V Adapter or USB ACIN OUT Charger Input APL3213/A Pin Configuration GND ACIN 1 ACIN 2 ACIN 3 8 OUT EP GND 4 7 OUT 6 OUT 5 NC TDFN2x2-8 (Top View) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 1 www.anpec.com.tw APL3213/A Ordering and Marking Information Package Code QB : TDFN2x2-8 Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device APL3213/A Assembly Material Handling Code Temperature Range Package Code APL3213 QB: 3213 X X - Date Code APL3213A QB: 213A X X - Date Code Note : ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). Absolute Maximum Ratings (Note 1) Symbol Parameter Rating Unit VACIN ACIN Input Voltage (ACIN pin to GND) -0.3 to 20 V VOUT OUT, Pin to GND Voltage -0.3 to 7 V IOUT OUT Output Current TJ 2 Maximum Junction Temperature TSTG Storage Temperature Range TSDR Maximum Lead Soldering Temperature,10 Seconds A 150 o -65 to 150 o 260 o C C C Note1: Stresses beyond those listed under ”absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under ”recommended operating conditions” is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Characteristics Symbol Parameter Typical Value Unit θJA Junction to Ambient Thermal Resistance in Free Air (Note 2) TDFN2x2-8 75 °C/W Note 2 :θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. Recommended Operating Conditions Symbol Parameter Range Unit APL3213 4.5 to 5.5 V APL3213A VACIN ACIN Input Voltage 4.5 to 5.25 V IOUT OUT Output Current 0 to 1.5 A TJ Junction Temperature -40 to 125 °C TA Ambient Temperature -40 to 85 °C Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 2 www.anpec.com.tw APL3213/A Electrical Characteristics Refer to the typical application circuit. These specifications apply over VACIN=5V, TA= -40~85°C, unless otherwise specified. Typical values are at TA=25°C. Symbol Parameter APL3213/A Test Conditions Unit Min. Typ. Max. 2.4 - 2.8 V ACIN POR Hysteresis - 250 - mV ACIN Supply Current - 125 300 µA - 8 - ms POWER-ON-RESET (POR) AND SUPPLY CURRENT VPOR ICC TB(ACIN) ACIN POR Threshold Input Power-On Blanking Time VACIN rising VACIN rising to VOUT rising INTERNAL POWER SWITCH AND OUT DISCHARGE RESISTANCE Power Switch On Resistance IOUT = 0.6A - 130 - mΩ OUT Discharge Resistance VOUT = 3V - 500 - Ω 5.70 5.85 6.00 V 5.285 5.33 5.38 V 5.28 5.33 5.4 V INPUT OVER-VOLTAGE PROTECTION (OVP) APL3213 VOVP Input OVP Threshold o VACIN rising APL3213A, TA=25 C APL3213A, TA = -20~60oC Input OVP Recovery Hysteresis TON(OVP) 150 250 350 mV Input OVP Propagation Delay - 1 - µs Input OVP Recovery Time - 8 - ms Over-Temperature Threshold - 140 - °C Over-Temperature Hysteresis - 20 - °C OVER-TEMPERATURE PROTECTION (OTP) TOTP Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 3 www.anpec.com.tw APL3213/A ACIN Supply Current vs. POR Threshold vs. Junction Temperature Junction Temperature 300 2.8 250 2.7 POR Threshold, VPOR (V) ACIN Supply Current, IACIN (µA) Typical Operating Characteristics 200 150 100 50 VACIN Increasing 2.6 2.5 2.4 2.3 0 -50 -25 0 25 50 75 100 VACIN Decreasing 2.2 125 -50 -25 0 Junction Temperature (° C) 50 75 100 125 Junction Temperature (oC) Input OVP Threshold vs. Power Switch On Resistance vs. Junction Temperature Junction Temperature 5.40 250 APL3213A Input Threshold Voltage (mV) ACIN to OUT On Resistance Power Switch On Resistance, RDS,ON (m8 ) 25 200 150 100 50 5.35 5.30 VACIN Increasing 5.25 5.20 5.15 5.10 5.05 VACIN Decreasing 5.00 0 -50 -25 0 25 50 75 Junction Temperature Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 100 125 -50 (oC) -25 0 25 50 75 100 125 (o Junction Temperature C) 4 www.anpec.com.tw APL3213/A Operating Waveforms Refer to the typical application circuit. The test condition is VACIN= 5V, CACIN= 1µF, COUT=1µF, TA= 25oC unless otherwise specified. Normal Power Off Normal Power On VACIN 1 VACIN 1 VOUT 2 2 IOUT 3 3 V OUT IOUT ROUT =3Ω ROUT = 3Ω CH1: VACIN, 2V/Div, DC CH2: VOUT , 2V/Div, DC CH2: VOUT , 2V/Div, DC CH3: IOUT, 1A/Div, DC TIME: 2ms/Div CH3: IOUT , 1A/Div, DC TIME: 100µs/Div CH1: VACIN, 2V/Div, DC OVP at Power Off OVP at Power On VACIN VACIN 1 1 VOUT VOUT 2 2 IOUT IOUT 3 3 VACIN= 0 to 12V VACIN= 12 to 0V CH1: VACIN, 5V/Div, DC CH1: VDD, 5V/Div, DC CH2: VOUT , 2V/Div, DC CH2: VOUT , 2V/Div, DC CH3: IOUT , 1A/Div, DC TIME: 2ms/Div CH3: IOUT , 1A/Div, DC TIME: 40ms/Div Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 5 www.anpec.com.tw APL3213/A Operating Waveforms Refer to the typical application circuit. The test condition is VACIN= 5V, CACIN= 1µF, COUT=1µF, TA= 25oC unless otherwise specified. Input Over-Voltage Protection Recovery from Input OVP APL3213 APL3213 VACIN VACIN 1 1 VOUT IOUT V OUT 2 2 3 3 IOUT VACIN = 5 to 12V, ROUT = 3Ω VACIN = 12 to 5V, ROUT = 3Ω CH1: VACIN , 5V/Div, DC CH1: VACIN , 5V/Div, DC CH2: VCHRIN , 2V/Div, DC CH2: VCHRIN , 2V/Div, DC CH3: IOUT , 1A/Div, DC TIME: 10µs/Div CH3: IOUT , 1A/Div, DC TIME: 2ms/Div Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 6 www.anpec.com.tw APL3213/A Pin Description PIN FUNCTION NO. NAME 1, 2, 3 ACIN Power Supply Input. 4 GND Ground. 5 NC 6, 7, 8 OUT - EP No Connection. Output Voltage Pin. The output voltage follows the input voltage when no fault is detected. Exposed Thermal Pad. Must be electrically connected to the GND pin. Block Diagram ACIN OUT POR Charge Pump ACIN OVP Gate Driver and Control Logic 0.5V GND Thermal Shutdown Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 7 www.anpec.com.tw APL3213/A Typical Application Circuit 5V Adapter or USB 1, 2, 3 ACIN 6, 7, 8 OUT Charger 1µF 1µF APL3213/A Li+ Battery GND 4 Figure 1. The Typical Protection Circuit for Charger Systems. Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 8 www.anpec.com.tw APL3213/A Function Description Power-Up The APL3213/A have a built-in power-on-reset circuit to keep the output shutting off until internal circuitry is operating properly. The POR circuit has hysteresis and a deglitch feature so that it will typically ignore undershoot transients on the input. When input voltage exceeds the POR threshold and after 8ms blanking time, the output voltage starts a soft-start to reduce the inrush current. Input Over-Voltage Protection (OVP) The input voltage is monitored by the internal OVP circuit. When the input voltage rises above the input OVP threshold, the internal FET will be turned off within 1µs to protect connected system on OUT pin. When the input voltage returns below the input OVP threshold minus the hysteresis, the FET is turned on again after 8ms recovery time. The input OVP circuit has a 200mV hysteresis and a recovery time of TON(OVP) to provide noise immunity against transient conditions. Over-Temperature Protection When the junction temperature exceeds 140οC, the internal thermal sense circuit turns off the power FET and allows the device to cool down. When the device’s junction temperature cools by 20οC, the internal thermal sense circuit will enable the device, resulting in a pulsed output during continuous thermal protection. Thermal protection is designed to protect the IC in the event of overtemperature conditions. For normal operation, the junction temperature cannot exceed TJ=+125 οC. VOVP VPOR VACIN VOUT Figure 2. OVP Timing Chart Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 9 www.anpec.com.tw APL3213/A Application Information Capacitor Selection The input capacitor is for decoupling and prevents the input voltage from overshooting to dangerous levels. In the AC adapter hot plug-in applications or load current step-down transient, the input voltage has a transient spike due to the parasitic inductance of the input cable. A 25V, X5R, dielectric ceramic capacitor with a value between 1µF and 4.7µF placed close to the ACIN pin is recommended. The output capacitor is for output voltage decoupling, and also the input capacitor of the charging circuit. At least, a 1µF, 10V, X5R capacitor is recommended. Layout Consideration In some failure modes, a high voltage may be applied to the device. Make sure the clearance constraint of the PCB layout must satisfy the design rule for high voltage. The exposed pad of the TDFN2x2-8 performs the function of channeling heat away. It is recommended that connect the exposed pad to a large copper ground plane on the backside of the circuit board through several thermal vias to improve heat dissipation. The input and output capacitors should be placed close to the IC. The high current traces like input trace and output trace must be wide and short. Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 10 www.anpec.com.tw APL3213/A Package Information TDFN2x2-8 D b E A A1 D2 E2 A3 L K Pin 1 Corner e TDFN2x2-8 S Y M B O L MIN. MAX. MIN. MAX. A 0.70 0.80 0.028 0.031 A1 0.00 0.05 0.000 0.002 MILLIMETERS A3 INCHES 0.20 REF 0.008 REF b 0.18 0.30 0.007 0.012 D 1.90 2.10 0.075 0.083 D2 1.00 1.60 0.039 0.063 0.083 0.039 E 1.90 2.10 0.075 E2 0.60 1.00 0.024 0.45 0.012 e 0.50 BSC L 0.30 K 0.20 0.020 BSC 0.018 0.008 Note : 1. Followed from JEDEC MO-229 WCCD-3. Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 11 www.anpec.com.tw APL3213/A Carrier Tape & Reel Dimensions P0 P2 P1 A B0 W F E1 OD0 K0 A0 A OD1 B B T SECTION A-A SECTION B-B H A d T1 Application TDFN2x2-8 A H T1 C d D W E1 F 178.0±2.00 50 MIN. 8.4+2.00 -0.00 13.0+0.50 -0.20 1.5 MIN. 20.2 MIN. 8.0±0.20 1.75±0.10 3.50±0.05 P0 P1 P2 D0 D1 T A0 B0 K0 2.0±0.05 1.5+0.10 -0.00 1.5 MIN. 0.6+0.00 -0.4 3.35 MIN 3.35 MIN 1.30±0.20 4.0±0.10 4.0±0.10 (mm) Devices Per Unit Package Type TDFN2x2-8 Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 Unit Tape & Reel Quantity 3000 12 www.anpec.com.tw APL3213/A Taping Direction Information TDFN2x2-8 USER DIRECTION OF FEED Classification Profile Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 13 www.anpec.com.tw APL3213/A Classification Reflow Profiles Profile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly 100 °C 150 °C 60-120 seconds 150 °C 200 °C 60-120 seconds 3 °C/second max. 3 °C/second max. 183 °C 60-150 seconds 217 °C 60-150 seconds See Classification Temp in table 1 See Classification Temp in table 2 Time (tP)** within 5°C of the specified classification temperature (Tc) 20** seconds 30** seconds Average ramp-down rate (Tp to Tsmax) 6 °C/second max. 6 °C/second max. 6 minutes max. 8 minutes max. Preheat & Soak Temperature min (Tsmin) Temperature max (Tsmax) Time (Tsmin to Tsmax) (ts) Average ramp-up rate (Tsmax to TP) Liquidous temperature (TL) Time at liquidous (tL) Peak package body Temperature (Tp)* Time 25°C to peak temperature * Tolerance for peak profile Temperature (Tp) is defined as a supplier minimum and a user maximum. ** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. Table 1. SnPb Eutectic Process – Classification Temperatures (Tc) Package Thickness <2.5 mm ≥2.5 mm Volume mm <350 235 °C 220 °C 3 Volume mm ≥350 220 °C 220 °C 3 Table 2. Pb-free Process – Classification Temperatures (Tc) Package Thickness <1.6 mm 1.6 mm – 2.5 mm ≥2.5 mm Volume mm <350 260 °C 260 °C 250 °C 3 Volume mm 350-2000 260 °C 250 °C 245 °C 3 Volume mm >2000 260 °C 245 °C 245 °C 3 Reliability Test Program Test item SOLDERABILITY HOLT PCT TCT HBM MM Latch-Up Method JESD-22, B102 JESD-22, A108 JESD-22, A102 JESD-22, A104 MIL-STD-883-3015.7 JESD-22, A115 JESD 78 Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 14 Description 5 Sec, 245°C 1000 Hrs, Bias @ Tj=125°C 168 Hrs, 100%RH, 2atm, 121°C 500 Cycles, -65°C~150°C VHBM≧2KV VMM≧200V 10ms, 1tr≧100mA www.anpec.com.tw APL3213/A Customer Service Anpec Electronics Corp. Head Office : No.6, Dusing 1st Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 2F, No. 11, Lane 218, Sec 2 Jhongsing Rd., Sindian City, Taipei County 23146, Taiwan Tel : 886-2-2910-3838 Fax : 886-2-2917-3838 Copyright ANPEC Electronics Corp. Rev. A.3 - Aug., 2011 15 www.anpec.com.tw