EUP8010X EUTECH | Alldatasheet

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Technical content

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Linear Li-Ion/Polymer Charger IC with Integrated FET and Charger Timer

DESCRIPTION

The EUP8010X series are hi ghly integrated single cell Li-Ion/Polymer battery charger IC designed for handheld devices. The EUP8010X integrates internal power FET, current sensor, charge status and reverse current protection in a single monolithic devices.When AC-adapter is applied, an external resistor sets the magnitude of the charge current, which may be programmed up to 1A. The EUP8010X charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The EUP8010X automatically re-starts the charge if the battery voltage falls below an internal threshold. The EUP8010X also automatically enters sleep mode when DC supplies are removed. No external sense resistor or blocking diode is required for charging. Typical Application Circuit

FEATURES

z Integrated Power FET and Current Sensor for Up to 1A Charge Applications z Charge Termination by Minimum Current and Time z Precharge Conditioning With Safety Timer z Reverse Leakage Protection Prevents Battery Drainage z Status Outputs for LED or System Interface Indicates Charge and Fault Conditions z Optional Battery Temperature Monitoring Before and During Charge z Automatic Sleep Mode for Low-Power Consumption z Available in 3mm×3mm TDFN-10 Package z RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS

Figure 1. EUP8010B

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Block Diagram Figure 2.

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Pin Configurations Package Type Pin Configurations Package Type Pin Configurations EUP8010A TDFN-10 EUP8010B TDFN-10 EUP8010C TDFN-10 EUP8010D TDFN-10 Pin Description PIN A B C D I/O DESCRIPTION AC 1 1 1 1 I Charge input voltage. This input must be tied to the VCC pin. VCC 2 2 2 2 I VCC supply input STA T1 3 3 3 3 O Charge status output 1 (open collector) STA T2 4 4 4 4 O Charge status output 2 (open collector) VSS 5 5 5 5 - Ground input ISET 6 6 6 6 O Charge current set point PG 7 7 - - O Power good status output (open collector) TS 8 - - 8 I Temperature sense input CE - 8 7 7 I Charge enable input (active low) TTE - - 8 - I Timer and termination enable input (active low) BA T 9 9 9 9 I Battery voltage sense input OUT 10 10 10 10 O Charge current output

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Ordering Information

Order Number Package Type Markin g Operating Temperature range EUP8010A-JIR1 TDFN-10 xxxxx 8010A -20 °C to 70°C EUP8010B-JIR1 TDFN-10 xxxxx 8010B -20 °C to 70°C EUP8010C-JIR1 TDFN-10 xxxxx 8010C -20 °C to 70°C EUP8010D-JIR1 TDFN-10 xxxxx 8010D -20 °C to 70°C EUP8010X- □ □ □ □ Lead Free Code 1 : L e a d F r e e 0 : L e a d P a c k i n g R: Tape& Reel Operating temperature range I: Industry Standard Package Type J : T D F N - 1 0

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Absolute Maximum Ratings Dissipation Ratings Package θJA TA < 40°C Power Rating Derating Factor Above TA =25°C TDFN-10 48°C/W 1.5W 0.0208 W/°C Recommended Operating Conditions (1) Min. Max. Unit Supply voltage (from AC input), VCC 4.5 5.5 V Operating junction temperature range, TJ -40 125 °C Electrical Characteristics over Recommended Operating Free-Air Temperature Range EUP8010X Parameter Conditions Min. Typ. Max. Unit Input Current VCC current, ICC(VCC) V CC > VCC(min) 0.9 1.5 mA Sleep current, ICC(SLP) Sum of currents into OUT pin, VCC < V(SLP) 1 5 µA Standby current, ICC(STBY) CE = High, 0°C ≤TJ ≤85°C 50 150 Voltage Regulation Output voltage, VO(REG) 4.2 V Voltage regulation accuracy -1.5% 1.5% AC dropout voltage (V(AC)-V(OUT)), V(DO) VO(OUT) = VO(REG), IO(OUT) = 1A 400 500 mV Current Regulation AC output current range, IO(OUT) (1) V I(BAT) >V(LOWV), VCC ≥4.5 V 50 1000 mA Output current set voltage, V(SET) Voltage on ISET pin, VCC ≥4.5 V, VI(BAT) > V(LOWV), 2.410 2.460 2.510 V 50 mA ≤IO(OUT) ≤1 A 304 320 336 10 mA ≤IO(OUT) < 50 mA 294 320 346 Output current set factor, K(SET) 1 mA ≤IO(OUT) < 10 mA 246 320 416

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Electrical Characteristics Over Recommended Operating Free-Air Temperature Range EUP8010X Parameter Conditions Min. Typ. Max. Unit Precharge and Short-Circuit Current Regulation Precharge to fast-charge transition threshold, V(LOWV) V oltage on OUT pin 2.8 3.0 3.2 V Deglitch time for fast-charge to precharge transition 250 375 500 ms Precharge range, IO(PRECHG) (2) 0 V < V I(BAT) < V(LOWV) 5 100 mA Precharge set voltage, V(PRECHG) V oltage on ISET pin,

0 V < VI(BAT) > V(LOWV) 230 245 260 mV

Charge Taper and Termination Detection Charge taper detection range, I(TAPER) (3) VI(BAT) > V(RCH) 5 100 mA Charge taper detection set voltage, V(TAPER) Voltage on ISET pin, V O(REG) = 4.2V, VI(BAT) > V(RCH) 235 250 265 Charge termination detection set voltage, V(TERM) (4) Voltage on ISET pin, VO(REG) = 4.2V, VI(BAT) > V(RCH) 11 18 25 mV Deglitch time for TAPER detection, tTPRDET 250 375 500 Deglitch time for termination detection, tTRMDET 250 375 500 ms Temperature Sense Comparator Low-voltage threshold, V(LTF) 2.49 2.515 2.54 High-voltage threshold, V(HTF) 0.495 0.510 0.525 V Current source, I(TS) 102 112 122 µA Deglitch time for temperature fault, t(DEGL) 250 375 500 ms Battery Recharge Threshold Recharge threshold, VRCH VO(REG) -0.150 VO(REG) -0.10 VO(REG) -0.050 V Deglitch time for recharge detect, t(DEGL) 250 375 500 ms STAT1, STAT2, and PG Outputs Low-level output saturation voltage, VOL IO = 5 mA 0.25 V (1) (2) ( 3 ) ( 4 )  × SET )PRECHG()SET( )PRECHG(O R VK I  × SET )SET()SET( )OUT(O R VK I  × SET )TAPER()SET( )TAPER(O R VK I   × SET )TERM()SET( )TERM(O R VK I

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 EUP8010X Parameter Conditions Min. Typ. Max. Unit Charge Enable (CE ), Timer and Termination Enable (TTE ) Inputs Low-level input voltage, VIL I IL = 10 µA 0 0.4 High-level input voltage, VIH I IL = 20 µA 1.4 V CE or TTE low-level input current, I IL -1 CE or TTE high-level input current, I IH 1 µA Timers Precharge time, t(PRECHG) 1,650 1,940 2,230 Taper time, t(TAPER) 8010A,8010B,8010C,8010D 1,650 1,940 2,230 Charge time, t(CHG) 8010A,8010B,8010C,8010D 16,500 19,400 22,300 s Timer fault recovery current, I(FAULT) 200 µA Sleep Comparator Sleep-mode entry threshold voltage, V(SLP) 2.3 V ≤VI(BAT) ≤VO(REG) VCC ≤VI(BAT) +100 mV Sleep mode exit threshold voltage, V (SLPEXIT) 2.3 V ≤VI(BAT) ≤VO(REG) VCC ≥VI(BAT) +190mV V Sleep mode deglitch time 250 375 500 ms Thermal Shutdown Thresholds Thermal trip threshold, T(SHTDWN) 165 Thermal hysteresis 30 Undervoltage Lockout Undervoltage lockout V(UVLO) Decreasing V CC 2.2 2.4 2.6 V Hysteresis 20 mV

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Application Information

Figure 3. Operational Flow Chart

K(SET) parameters are specified in the specifications table. parameters are specified in the specifications table. indicates the open-drain transistor is turned off. Table 1. Status Pins Summary STA T1 and STA T2 pins is in an off state. communicate to the host processor. timer and a high-level signal disables this feature. the die and suspends charging if T J exceeds T (SHTDWN).

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Timer Fault Recovery As shown in Figure 3, EUP8010X provides a recovery method to deal with timer fault conditions. The following summarizes this method: Condition #1: Charge voltage above recharge threshold (V(RCH)) and timeout fault occurs Recovery method: EUP8010X waits for the battery voltage to fall below the recharge threshold. This could happen as a result of a load on the battery, self-discharge or battery removal. Once the battery falls below the recharge threshold, the EUP8010X clears the fault and starts a new charge cycle. A POR or CE or TTE toggle also clears the fault. Condition #2: Charge voltage below recharge threshold (V(RCH)) and timeout fault occurs Recovery method: Under this scenario, the EUP8010X applies the I (FAULT) current. This small current is used to detect a battery removal condition and remains on as long as the battery voltage stays below the recharge threshold. If the battery voltage goes above the recharge threshold, then the EUP8010X disables the I (FAULT) current and executes the recovery method described for condition #1. Once the battery falls below the recharge threshold, the EUP8010X clears the fault and starts a new charge cycle. A POR or CE or TTE toggle also clears the fault.

D S 8 0 1 0 X V e r 1 . 2 J u n e 2 0 0 7 Packaging Information TDFN-10 MILLIMETERS INCHES SYMBOLS MIN. MAX. MIN. MAX. A 0.70 0.80 0.028 0.031 A1 0.00 0.05 0.000 0.002 D 2.90 3.10 0.114 0.122 E1 1.70 0.067 E 2.90 3.10 0.114 0.122 L 0.30 0.50 0.012 0.020 b 0.18 0.30 0.007 0.012 e 0.50 0.020 D1 2.40 0.094