APL3527 Ultra-Low On-Resistance, Power Load Switch with Soft Start Features General Description • Ultra-Low On-Resistance: 15mΩ(typical) • Low Quiescent Current: 20µA(max) The APL3527 is an ultra-low on-resistance, power-distribution switch with external soft start control. • Soft Start Time Programmable by External Ca- The device integrates some protection features, including current-limit protection and over-temperature pacitor protection. The current-limit protection can protect down stream devices from catastrophic failure by limiting the • Wide Input Voltage Range (VIN): 0.8V to VDD+0.3 • Supply Voltage Range (VDD): 3V to 5.5V • Current Limit Protection • Enable Input • Output Discharge when Switch Disabled • Over-Temperature Protection • Tiny small WLCSP 1.2x0.8-6 Package will automatically turns on the power switch when the temperature drops by 30 oC. The device is available in • Lead Free and Green Devices Available (RoHS lead free WLCSP1.2x0.8-6 package. output current at current limit threshold during over-load or short-circuit events. The over temperature protection function shuts down the N-channel MOSFET power switch when the junction temperature rises beyond 150oC and Compliant) Applications • Notebook • AIO PC Pin Configuration APL3527A/B/C/G C C VDD SS B EN VDD GND VIN VOUT 2 WLCSP1.2x0.8-6 (Top View) VOUT VOUT SS ENB GND VIN VOUT 1 2 A 1 VDD VDD B A Simplified Application Circuit APL3527D/E/F/H WLCSP1.2x0.8-6 (Top View) APL3527 VIN SS VIN EN/ENB GND 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 - Jun., 2014 1 www.anpec.com.tw APL3527 Ordering and Marking Information Output Current/Enable Function APL3527 A : 1.5A/Active High B : 1A/Active High C : 0.5A/Active High D : 1.5A/Active Low E : 1A/Active Low F : 0.5A/Active Low G : 3A/Active High H : 3A/Active Low Assembly Material Package Code Handling Code Temperature Range HA : WLCSP1.2x0.8-6 Operating Ambient Temperature Range Package Code Output Current/Enable Function I : -40 to 85oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device 7X APL3527A~H HA: 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). WLCSP1.2x0.8-6 Marking (Top View) 1 7X 2 A B C 1 VIN EN VDD 2 VOUT GND SS A B Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 C 2 www.anpec.com.tw APL3527 Absolute Maximum Ratings Symbol (Note 1) Parameter Rating Unit VDD VDD to GND Voltage -0.3 ~ 6 V VIN VIN to GND Voltage -0.3 ~ 6 V VOUT to GND Voltage -0.3 ~ 6 V -0.3 ~ 6 V VOUT VEN, VENB IOUT TJ EN, ENB to GND Voltage Continuous Output Current Internally Limited Maximum Junction Temperature TSTG Storage Temperature TSDR Maximum Lead Soldering Temperature (10 Seconds) A -40 ~ 150 o -65 ~ 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 θJA Parameter Typical Value Junction-to-Ambient Thermal Resistance in free air Unit (Note 2) o WLCSP1.2X0.8-6 C/W 100 Note 2: θJAis measured with the component mounted on a high effective thermal conductivity test board in free air. Recommended Operating Conditions Symbol Parameter (Note 3) Range Unit 3.0 ~ 5.5 V 0.8 ~ VDD+0.3 V APL3527A/D 0 ~ 1.5 A APL3527B/E 0~1 A APL3527C/F 0 ~ 0.5 A VDD VDD Input Voltage (VDD>VIN) VIN VIN Input Voltage IOUT VOUT Output Current 0~3 A VIH EN Logic High Input Voltage 0.9 ~ 5.5 V VIL ENB Logic Low Input Voltage 0 ~ 0.3 V CSS Soft-Start Capacitor 0 ~ 100 nF TA Ambient Temperature -40 ~ 85 o -40 ~ 125 o APL3527G/H TJ Junction Temperature C C Note 3: Please refer to the typical application circuit. Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 3 www.anpec.com.tw APL3527 Electrical Characteristics Unless otherwise specified, these specifications apply over VIN= 5V, VDD =5V, VEN =5V (or VENB=0V) and TA= -40~85oC. Typical values are at TA=25oC. Symbol Parameter Test Conditions APL3527 Unit Min Typ Max No load - 15 20 µA No load, VDD=5V, VEN=Low (APL3527A/B/C/G) - - 1 µA No load, VDD=5V, VEN=High (APL3527D/E/F/H) - 0.9 1.5 µA SUPPLY CURRENT IDD ISD VDD Supply Current VDD Supply Current at Shutdown No load - 10 20 µA No load, VDD=5V, VEN=0V or VENB=5V, VIN=5V - 0.1 8 µA No load, VDD=5V, VEN=0V or VENB=5V, VIN=3.3V - 0.1 3 µA No load, VDD=5V, VEN=0V or VENB=5V, VIN=1.8V - 0.1 2 µA No load, VDD=5V, VEN=0V or VENB=5V, VIN=0.8V - 0.1 1 µA VDD=5V, VIN=5V, VEN=0V or VENB=5V - 0.1 7 µA 1.9 2.2 2.5 V - 0.1 - V - 15 18 mΩ IOUT=0.5A, TJ=-40~125 C - - 20 mΩ VEN=0V or VENB=5V, VOUT force 1V - 100 150 Ω 2.3 2.5 2.7 A VIN Supply Current IIN_OFF VIN Off-State Supply Current VOUT Leakage Current UNDER-VOLTAGE LOCKOUT (UVLO) VDD rising, TJ= 25oC Rising VDD UVLO Threshold VDD UVLO Hysteresis POWER SWITCH RDS(ON) Power Switch On Resistance IOUT=0.5A, TJ=25oC VOUT Discharge Resistance o CURRENT LIMIT AND SHORT CIRCUIT PROTECTIONS APL3527A/D TJ=25oC o TJ=-40 to 125 C ILIM Current Limit Threshold APL3527B/E 2 - - A 1.3 1.5 1.7 A 1.1 - - A TJ=25 C 0.7 0.85 1 A TJ=-40 to 125oC 0.6 - - A TJ=25oC 3.5 4 4.5 A TJ=25oC o TJ=-40 to 125 C o APL3527C/F APL3527G/H SOFT-START CONTROL PIN ISS SS Current VSS=0V - 4 - µA SS Discharge Resistance VSS=6V, VEN=0V or VENB=5V, measured at SS - 10 - kΩ EN OR ENB INPUT PIN Input Logic High VDD=3~5.5V 0.9 - - V Input Logic Low VDD=3~5.5V - - 0.3 V - - 1 µA - 1.75 - ms - 150 - °C - 30 - °C Input Current tD Turn On Delay Time OVERT-TEMPERATURE PROTECTION (OTP) Over-Temperature Threshold TJ rising Over-Temperature Hysteresis Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 4 www.anpec.com.tw APL3527 Pin Description PIN Function NO. NAME C1 VDD B1 VDD voltage input pin for internal control circuitry. EN Enable input of switch. Logic high turns on switch. The EN pin cannot be left floating. ENB Enable input of switch. Logic low turns on switch. The ENB pin cannot be left floating. A1 VIN Power supply Input of switch. Connect this pin to an external DC supply. A2 VOUT Switch output. B2 GND Ground pin of the circuitry. All voltage levels are measured with respect to this pin. C2 SS Soft start control of switch. A capacitor from this pin to ground sets the VOUT’s rise slew rate. Block Diagram VOUT VIN VDD UVLO Current Limit Charge Pump Control Logic EN GND OTP SS Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 5 www.anpec.com.tw APL3527 Typical Application Circuits VDD=5V VDD CDD 0.1µF VOUT COUT 1µF APL3527 CLOAD RLoad VIN=5V SS VIN CIN1 Optional CIN2 1µF CSS Optional GND EN/ENB Timing Chart 50% 50% tR VEN tON tF tOFF 90% 50% VOUT 90% 50% VOUT 10% 10% tD Figure 1. tON/tOFF, tR/tF Waveforms Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 6 www.anpec.com.tw APL3527 Soft Start CSS(pF) Soft-Start Time (µs) Test Condition: VDD=5V, COUT=1µF, CIN=1µF, RL=100Ω, Typical Values at TA=25°C VIN=5V VIN=3.3V VIN=1.8V VIN=1.5V VIN=1.2V VIN=1.05V VIN=0.8V 0 95 60 39 30 26 24 20 220 385 235 131 109 85 84 62 330 524 308 171 141 116 103 79 470 783 433 250 207 164 150 116 1000 1461 854 469 388 324 285 222 2200 3250 1767 1026 839 681 592 472 4700 6900 4050 2294 1880 1552 1379 1062 10000 14280 7968 4888 3976 3180 2970 2216 CSS(pF) Soft-Start Time (µs) Test Condition: VDD=3.3V, COUT=1µF, CIN=1µF, RL=100Ω, Typical values at TA=25°C. VIN=3.3V VIN=1.8V VIN=1.5V VIN=1.2V VIN=1.05V VIN=0.8V 0 98 48 42 36 32 26 220 358 159 134 107 98 75 330 449 214 174 142 125 96 470 698 302 262 209 189 143 1000 1322 581 478 394 348 270 2200 2830 1257 1076 852 763 577 4700 6048 2714 2352 1851 1687 1312 10000 12100 5604 4432 3606 3208 2664 Turn on delay Time CSS(pF) Turn on Delay Time (ms) Test Condition: COUT=1µF, CIN=1µF, RL=100Ω, Typical Values at TA=25°C. VDD=VIN=5V VDD=VIN=3.3V 0 2.030 1.953 220 2.055 1.995 330 2.088 2.013 470 2.101 2.021 1000 2.162 2.101 2200 2.286 2.301 4700 2.536 2.696 10000 3.008 3.430 Note 4: The table Contains soft-start time values and turn on delay time values measured on a typical device. The soft-start times (tR) and turn on delay times (tD) shown are only valid for the power up sequence where VIN and VDD are already in steady state condition, and EN or ENB pin is asserted high or low. Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 7 www.anpec.com.tw APL3527 Function Description VIN Under-voltage Lockout (UVLO) A under-voltage lockout (UVLO) circuit monitors the VDD pins voltage to prevent wrong logic controls. The UVLO function initiates a soft-start process after the VDD supply voltages exceed rising UVLO voltage threshold during powering on. Current-Limit Protection The APL3527 power switch provides the current-limit protection function. During current-limit, the devices limit output current at current-limit threshold. For reliable operation, the device should not be operated in current limit for extended period time. Soft-Start The APL3527 has a dedicated enable pin (EN or ENB). A logic low (EN) or high (ENB) signal applied to this pin shuts down the output. Following a shutdown, a logic high signal re-enables the output through initiation of a new soft-start cycle. Over-Temperature Protection When the junction temperature exceeds 150oC, 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 30 oC, 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 over temperature conditions. For normal operation, the junction temperature cannot exceed TJ=+125oC. Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 8 www.anpec.com.tw APL3527 Application Information Input Capacitor For normal operation, do not exceed the maximum oper- A 1µF or higher ceramic bypass capacitor from VIN to GND, ating junction temperature of TJ = 125°C. The calculated power dissipation should be less than: located near the APL3527, is strongly recommended to suppress the ringing during short circuit fault event. PD =(125-25)/100 When the load current trips the current limit threshold in an over load condition such as a short circuit, hot plug-in = 1(W)....................................................TA=25oC PD =(125-85)/100 or heavy load transient the IC immediately turns off the internal power switch that will cause VIN ringing due to = 0.4(W)......................................................TA=85oC the inductance between power source and VIN. Without the bypass capacitor, the output short may cause suffi- The power dissipation depends on operating ambient temperature for fixed TJ=125oC and thermal resistance θJA. For APL3527 packages, the Figure 2 of derating cient ringing on the input to damage internal control circuitry. curves allows the designer to see the effect of rising ambient temperature on the maximum power allowed. Input capacitor is especially important to prevent VIN from ringing too high in some applications where the inductance between power source to VIN is large (ex, an extra bead is added between power source line to VIN for EMI Power Dissipation (W) 1.1 reduction), additional input capacitance may be needed on the input to reduce voltage overshoot from exceeding the absolute maximum voltage of the device during over load conditions. The recommended output capacitance of VOUT is 1µF at least. Please place the capacitors near the APL3527 as 1.0 0.9 0.8 0.7 0.6 0.5 0.4 -40 -30 -20 -10 close as possible. A bulk output capacitors, placed close to the load, is rec- 0 10 20 30 40 50 60 70 80 90 Ambient Temperature (oC) Figure 2. Derating Curves for APL3527 Package ommended to support load transient current. Power Switch The power switch is an N-channel MOSFET with a ultralow RDS(ON). When IC is in shutdown state, the internal Recommended Minimum Footprint 0.8 parasitic diodes connected from VOUT to VIN will be forward biased. Thermal Consideration The APL3527 maximum power dissipation depends on 0.29 the differences of the thermal resistance and temperature between junction and ambient air. The power dissi- 0.2 pation PD across the device is: 1.2 PD = (TJ - TA) / θJA 0.4 where (TJ-TA) is the temperature difference between the junction and ambient air. θJA is the thermal resistance (0,0) between junction and ambient air. Assuming the TA=25°C and maximum TJ=150°C (typical thermal limit threshold), the maximum power dissipation is calculated as: 0.4 PD(max)=(150-25)/100 WLCSP1.2x0.8-6 = 1.25(W) Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 Unit: mm 9 www.anpec.com.tw APL3527 Package Information WLCSP1.2x0.8-6 E b D PIN 1 A1 A NX aaa c e SEATING PLANE e S Y M B O L WLCSP1.2x0.8-6 MILLIMETERS MIN. INCHES MAX. MIN. MAX. 0.043 1.10 A A1 0.15 0.25 0.006 0.010 b 0.23 0.29 0.009 0.011 D 0.76 0.84 0.030 0.033 E 1.16 1.24 0.046 0.049 e 0.40 BSC aaa 0.08 Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 0.016 BSC 0.003 10 www.anpec.com.tw APL3527 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 WLCSP (1.2x0.8-6) A H 178.0±2.00 50 MIN. P0 P1 T1 8.4+2.00 -0.00 P2 4.0±0.10 4.0±0.10 2.0±0.05 C 13.0+0.50 -0.20 D0 1.5+0.10 -0.00 d D W E1 F 1.5 MIN. 20.2 MIN. 8.0±0.30 1.75±0.10 3.5±0.05 D1 T 0.6+0.00 -0.40 A0 B0 K0 1.07±0.05 1.42±0.05 0.74±0.05 1.5 MIN. (mm) Devices Per Unit Package Type Unit Quantity WLCSP1.2x0.8-6 Tape & Reel 3000 Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 11 www.anpec.com.tw APL3527 Taping Direction Information WLCSP1.2x0.8-6 USER DIRECTION OF FEED Classification Profile Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2014 12 www.anpec.com.tw APL3527 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) 3 Volume mm ≥350 220 °C 220 °C Package Volume mm Thickness <350 <2.5 mm 235 °C ≥2.5 mm 220 °C 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 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 - Jun., 2014 13 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 APL3527 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 - Jun., 2014 14 www.anpec.com.tw