EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Introduction The AAT2601 and AAT2601A are members of Skyworks' Total Power Management IC (TPMIC™) product family; they are completely integrated solutions ideal for portable systems, which contain: • One Step-Down Buck Converter operating at a switching frequency of 1.5MHz, thus minimizing the size of external components while keeping switching losses low and efficiency greater than 95%. They deliver 1.8V, 300mA output to the Core supply. • Five LDOs. The output voltages are programmable and can be enabled or disabled using the I2C interface, or enabled/ disabled by the respective EN pins. ▪ LDO1: 3.0V, 300mA output to power digital ▪ LDO2: 3.0V, 150mA output to power analog or PLL ▪ LDO3: 3.0V, 150mA output to power TCXO ▪ LDO4: 3.0V, 150mA for TX, 2.8V option available ▪ LDO5: 3.0V, 150mA for RX, 2.85V option available ▪ PSRR: 60dB@10kHz ▪ Noise: 50μVrms for LDO3, LDO4, and LDO5; the low noise operation makes LDO3-5 suitable for powering noisesensitive loads. • One battery charger is a complete thermally regulated constant current/voltage linear charger ideal for single-cell Li-Ion/Li-Polymer batteries which supports: ▪ Single-/Dual-input USB/AC Adapter, operates from 4.5V to 6V, with UVLO function ▪ Up to 1A current for fast charge set by external resistor, and programmable through I2C from 40% to 180% of pre-set current ▪ Charge current termination programmable through I2C, default 5% of Fast Charge Current ▪ Automatic trickle charge for battery precondition (2.8V typ. cutoff), to maintain a safe charging environment ▪ Programmable on-chip charger timers to identify damaged cells and ensure that the cell is charged safely ▪ Temperature sense monitor the battery temperature and suspend the charging current when the battery temperature exceeds the limits ▪ Thermal regulation features an internal thermal feedback loop that reduces the charging current as necessary to ensure the die temperature does not rise above the thermal regulation threshold of 115°C ▪ Reverse battery protection internal circuitry eliminates the need for series blocking diodes, reducing solution size and cost as well as dropout voltage relative to convertional battery chargers • Integrated load switches to select the power source from AC adapter or battery automatically • Power-On pushbutton switch input (EN_KEY) and noise debounce circuit • Adapter OK (ADPP) and Reset (RESET) Timer Outputs • Battery Charger status output (STAT) • Separate Enable pins for each output • Low Standby Current: 170μA (typ.) with Buck (Core), LDO1 (PowerDigital), and LDO2 (PowerAnalog) active, no load • Over-Current Protection • Charging Over-Voltage VOVP Protection (4.3V typ.) • Over-Temperature Protection • TQFN-55-36 Package, 5x5mm Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 1 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications AAT2601/2601A Functional Block Diagram SYSOUT SYSOUT LDO 500mΩ 100 mΩ CHGIN BAT ADPP ENBAT Charger Control USE_USB STAT ISET TS CT Ref RESET SDA SCL PVIN UVLO EN_TEST I C and Enable Control 2 EN_HOLD EN_KEY ON_KEY LX VIN Ref BUCK OUTBUCK Enable PGND EN2 EN3 VIN REF EN4 CNOISE EN5 AVIN2 AVIN1 VIN Ref LDO1 LDO2 Enable VIN Ref LDO3 Enable VIN Ref LDO4 Enable VIN Ref LDO5 Enable Ref VIN Enable AGND OUT1 OUT2 OUT3 OUT4 OUT5 The Evaluation Board is fully assembled and tested with the AAT2601/2601A, which has the capability to charge a single Li+ battery to 4.2V from an external USB or AC adapter, and deliver 1.8V/300mA to the processor core power as well as 5 programmable-output LDOs to supply PowerDigital, PowerAnalog/PLL, TCXO, TX, and RX up to 300mA. 2 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Battery Mode If there is no USB/AC Adapter (CHGIN) input, when the battery voltage is above the UVLO_BAT (2.7V max.), the SYSOUT and regulators are enabled by EN_KEY and/or EN_HOLD, then the system power SYSOUT will be supplied by the BAT input through an internal power switch with 100mΩ RDS(ON) (typ.). The Buck converter and LDO1 will then start up to power the load, and the RESET/ signal will go high after a timeout period to properly reset the loaded chipset. USB/Wall Adapter Mode When the USB/AC Adapter (CHGIN) input is present and above UVLO CHGIN threshold of 4.25V typ., the CHGIN will supply a regulated 3.9V to SYSOUT, and the Buck and LDOs will power their outputs from the SYSOUT voltage if the EN_KEY and/or EN_HOLD is enabled. If ENBAT is pulled low, then the BAT will be charged with a linear constant current/voltage in four battery charging phases: • Preconditioning (Trickle) Charge: If the battery voltage is below the preconditioning voltage threshold VMIN (2.8V typ.), then the battery charger initiates trickle charge mode and charges the battery at 10% of the programmed constant current magnitude. • Constant Current Charge: If the battery voltage is charged above VMIN, the battery charger begins constant-current charging. The current level for this mode is programmed by using a resister from the ISET pin to ground. If it is charged by USB, the USE_USB signal is high, then the charge current is reset to an internally set 100mA current (and the SYSOUT would be supplied by BAT), until the microcontroller sends another I2C signal to change the charge current level. • Constant Voltage Charge: When the battery voltage reaches the regulation voltage VBAT-REG (4.2V typ.), the battery charger will transition to constant-voltage mode, until the charge current has reduced to the end of charge termination current. • Power Saving Mode: After the charge cycle is complete, the battery charger turns off the series pass device and automatically goes into a power saving sleep mode, and block current in both directions to prevent the battery from discharging through the battery charger. While monitoring the charge cycle, the AAT2601/2601A utilize a charge safety timer to help identify damaged cells to ensure the cell is charged safely. Three timeout periods of 1 hour for Trickle charge mode, 3 hours for Constant Current Mode and 3 hours for Constant Voltage mode. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 3 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Figure 1A: Top Side AAT2601/2601A Evaluation Board. Figure 1B: Bottom Side AAT2601/2601A Evaluation Board. 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Layout Guidelines The following guidelines should be followed to ensure proper operation of the AAT2601/2601A: 1. The exposed pad (EP) must be reliably soldered to AGND. A large pad under the device is strongly recommended for heat dissipation, it is recommended to connect this pad under the EP to GND layer through several VIA pads. 2. The Buck input and output traces, including LX-to-L1-to-C4-to-PGND trace loop and PVIN-to-C2-to-PGND trace loop should be kept short, direct and wide to allow high current flow. Use many multi-layer VIA pads when connecting traces which connect between layers. 3. Connect the CHGIN capacitor C1 to the CHGIN pin and AGND, Bat capacitor C3 to BAT pin and AGND as close as possible to get good power filtering. 4. If the user needs to start up the system in USB mode (USE_USB = 1 and input current is limited to 100mA) without a battery present, then it is recommended to use three 10µF/10V capacitors at C2, C14, and C15 to slow the supply ramp-up time. If enabling OUT2 and OUT3 during start-up, add 10nF capacitors at C16 and C17 to create a small enable delay for LDO2 and LDO3. This prevents input supply droop with the 100mA current limitation in the USB charge mode. 5. Connect the Sysout capacitors C2 and C14 to the SYSOUT pin and AGND, PVIN capacitor C15 to PVIN pin and AGND as close as possible to get good power filtering. 6. Keep the switching node LX pad short but wide for current, away from the sensitive OUTBUCK node. 7. To avoid high AGND noise affecting the internal accurate reference circuit, it is recommended that PGND connect to AGND plane at a single point under the device and to the top/bottom side AGND plane. 8. Charger Timeout Capacitor C12 to CT pin, C13 to CNOISE pin, C5 to OUT5, C6 to OUT4, C7 to OUT3, C8 to OUT2, C9 to OUT1 as close as possible, and connect the capacitor alternative pad to AGND plane. Figure 2: AAT2601/2601A Evaluation Board PCB Top Layer. Figure 3: AAT2601/2601A Evaluation Board PCB Mid Layer 1. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 5 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Figure 4: AAT2601/2601A Evaluation Board PCB Mid Layer 2. R30 D1 1K STAT STAT BAT_ID R32 R1 10K 0 USE_USB VDIG PON_N TP11 Sysout J1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 VANA ACOK_N VTCXO EXT PWR 3 2 J12 INT/EXT PWR TX_EN PWR_HOLD J10 R31 1 10K 2 R33 3 RESET_N 4 10K SDA SCL GND DATA HEADER VCORE Header 13X2H Coptional .01µF TP2 CHGIN CHG_EN J11 Figure 5: AAT2601/2601A Evaluation Board PCB Bottom Layer. VBATT J3 VBATT U1 3 CHGIN 2 28 1 C1 10µF VBUS/VCHG C16 10nF VBATT 30 ENBAT R3 0 29 USE_USB R4 0 35 R6 0 SDA SCL R7 3 DNP 2 1 R5 100K R8 J2 SDA SCL TCXO_EN 100K VTX 0 36 C17 10nF VDIG VRX 1 3 VBUS VCHG R9 0 R10 0 R12 0 R14 0 5 6 7 8 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 BAT_ID Q1 CMPT3904 PWR_ON RX_EN HF_PWR C10 0.1µF Header 13X2H C11 R17 0.1µF 10K BAT BAT EN_KEY EN_HOLD EN_TEST EN2 EN3 EN4 EN5 C12 0.1µF 33 CT 32 ISET 31 TS R18 1.24K PMU_Via R38 0 R39 0 VCORE VRX BAT 27 26 SYSOUT SYSOUT AVIN1 AVIN2 PVIN 25 OUT1 OUT2 OUT3 OUT4 OUT5 LX OUTBUCK 15 24 14 11 22 TP10 Sysout Sysout R34 0 R35 0 R36 0 12 10 9 20 19 CNOISE 17 AGND PGND GND_SLUG 16 C15 10µF VDIG R19 10K VDIG R20 100K VDIG R21 100K J13 SW1 PWR_ON CHGIN R25 100K J17 HF_PWR TX_EN VDIG R24 10K 3 4 18 34 R26 100K R27 100K J19 ACOK_N 0 PON_N R15 0 RESET_N R16 0 STAT C4 4.7µF C5 4.7µF C6 4.7µF C7 4.7µF R29 10K 21 R37 10K 37 ACOK_N RESET_N TP3 TP5 C13 0.01µF VDIG VCORE STAT TP6 2 ANA_EN TP7 GND TP8 GND TP12 GND J20 1 1 1 2 PWR_HOLD 2 USE_USB 2 3 3 3 3 USE_USB CHG_EN PWR_HOLD 0 R13 CHGIN J18 HF_PWR R11 3 TCXO_EN 1 CHG_EN 2 Figure 6: AAT2601/2601A Evaluation Board Schematic. 6 J9 OUT1 buckout 1 ANA_EN 2 3 RX_EN BAT J8 OUT2 J16 1 TCXO_EN 2 3 J7 OUT3 R23 100K J15 1 TX_EN 2 VTX VTCXO VANA VDIG J6 OUT4 VDIG R22 100K J14 1 RX_EN PWR_ON J5 OUT5 LX PON_N TP4 BAT J4 BUCK C2 10µF L1 3.3µH 23 ADPP ON-KEY RESET STAT C3 10µF C14 10µF OUT1 OUT2 OUT3 OUT4 OUT5 13 TP9 4 5 ANA_EN VBATT 2 CHGIN R2 TP1 VBATT Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 C8 4.7µF C9 22µF EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Specification Input Voltage USB/Wall Adapter Input Voltage Battery Input Voltage Battery Charger Output Charge Voltage Regulation Preconditioning Voltage Threshold Constant-Current Mode Charge Current Buck Converter Buck Output Voltage Buck Output Current LDOs Symbol Conditions Min VIN VBAT VBAT-REG BAT discharge 0°C ≤ TA ≤ +70°C VMIN ICH_CC VOUT IOUT LDO1 Output Voltage VOUT LDO1 Output Current LDO2, LDO3, LDO4, LDO5 Output Voltage LDO2, LDO3, LDO4, LDO5 Output Current IOUT VOUT IOUT RISET = 1.24KΩ, USE_USB = Low, I C ISET Code = 000 (default), VBAT = 3.6V 2 IOUT = 0 to 300mA; VBAT = 3V~4.2V, VCHGIN = 4.5V~6.0V 0~300mA load, VBAT = 3.3V~4.2V, I2C LDOx Code = 00 (default) Typ Max Units 4.5 6 V 3 4.2 V 5.158 4.200 4.242 V 2.6 2.8 3.0 V 740 820 900 mA 1.71 300 1.80 1.89 V mA 2.91 3.00 3.09 300 0~150mA load, VBAT = 3.3V~4.2V, I2C LDOx Code = 00 (default) 2.91 V mA 3.00 3.09 150 V mA Table 1: AAT2601/2601A Evaluation Board Specifications. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 7 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Jumper J3_Vbat J4_Vcore J5_OUT5 J6_OUT4 J7_OUT3 J8_OUT2 J9_OUT1 J11 J12_PWR_ON J13_RX_EN J14_TX_EN J15_TCXO_EN J16_ANA_EN J17_HF_PWR J18_PWR_HOLD J19_USE_USB J20_CHG_EN Shunt State Function None Installed None Installed None Installed None Installed None Installed None Installed None Installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed 1,2 installed 2,3 installed Disconnect the external battery (VBATT) Connect with external battery (VBATT) through J2_19,21 Disconnect the buck output voltage to VCORE load Connect with VCORE load through J1_26 Disconnect the OUT5 output voltage to VRX load Connect with OUT5 load VRX through J2_11 Disconnect the OUT4 output voltage to VTX load Connect with OUT4 load VTX through J2_7 Disconnect the OUT3 output voltage to VTCXO load Connect with OUT3 load VTCXO through J1_10 Disconnect the OUT2 output voltage to VANA load Connect with OUT2 load VANA through J1_6 Disconnect the OUT1 output voltage to VDIG load Connect with OUT1 load VDIG through J1_25 Select CHGIN input voltage from VBUS (J2_15,17) Select CHGIN input voltage from VCHG (J2_23,25) Pull EN_KEY to low, enable the system Pull EN_KEY to high by internal pull-up resister Pull RX_EN EN5 to high, Enable OUT5 output Pull RX_EN EN5 to low, Disable OUT5 output Pull TX_EN EN4 to high, Enable OUT4 output Pull TX_EN EN4 to low, Disable OUT4 output Pull TCXO_EN EN3 to high, Enable OUT3 output Pull TCXO_EN EN3 to low, Disable OUT3 output Pull ANA_EN EN2 to high, Enable OUT2 output Pull ANA_EN EN2 to low, Disable OUT2 output Pull HF_PWR EN_TEST to high, Enable the system Pull HF_PWR EN_TEST to low Pull PWR_HOLD EN_HOLD to high, Enable the system Pull PWR_HOLD EN_HOLD to low Pull USE_USB to high, Enable the USB Charger Pull USE_USB to low, Disable the USB Charger Pull the CHGIN ENBAT to high, Disable battery Charger Pull the CHGIN ENBAT to low, Enable battery Charger Table 2: Shunt Jumper Selection. J1_1 J1_3 J1_2 J1_4 J2_1 SDA J2_2 J2_3 SCL J2_4 J1_5 STAT_N J1_6 VANA J1_7 J1_9 J1_8 ACOK_N J1_10 VTCXO J2_5 TCXO_EN J2_6 J2_7 VTX J2_8 J2_9 ANA_EN J2_10 J1_11 AGND J1_12 AGND J2_11 VRX J2_12 J1_13 J1_14 VCORE J1_15 USE_USB J1_16 J2_13 AGND J2_14 J2_15 VBUS J2_16 J1_17 J1_19 J1_18 TX_EN J1_20 PWR_HOLD J2_17 VBATT J2_18 J2_19 VCHG J2_20 PWR_ON J1_21 PON_N J1_22 AGND J1_23 VDIG J1_24 CHG_EN J1_26 VCORE J2_21 J2_23 J2_25 J2_22 RX_EN J2_24 HF_PWR J2_26 AGND Table 3: Connector Pins Assignment. 8 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 J1_25 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications TP1 VBATT TP8 AGND TP2 CHGIN TP8_PGND PGND TP3 ADPP TP9_LX LX TP4 ON-KEY TP10_sysout SYSOUT TP5 RESET TP6 STAT TP7 AGND Table 4: Test Point (TP) Assignment. Test Equipment 1. 2. 3. 4. 5. 6. 8.0V 5.0A laboratory DC power supply: Agilent E3648A or equivalent DC Electronic Load: Agilent N3301A 6 1/2 Digit Multi-meter: Agilent 34401A or equivalent 4 Channel Digital Oscilloscope: Tektronix TDS3034B (300MHz, 2.5GS/s) or equivalent Waveform Generator: Agilent 33250A or equivalent Source Meter: Keithley 2400 (to simulate battery) Setup and Test (see connection diagram in Figure 7) A: Load and Line Regulation 1. Apply a DC power supply (DC1 in wall adapter mode, or DC2 in battery mode) and DC voltmeter across the input voltage terminals. 2. Apply a DC load and DC voltmeter to the respective output terminals. 3. Before turning on the board, set the shunt jumper to the correct position as illustrated in Figure 7 and Table 2 (J3, J4, J5, J6, J7, J8, and J9 installed; J11, J19, and J20 2-3 installed; J12, J13, J14, J15, J16, J17, and J18 1-2 installed), to properly start up the board. 4. Vary the load from 0 to 300mA for Buck and LDO1, 0 to 150mA for LDO2, LDO3, LDO4, LDO5, and vary the battery voltage of DC2 from 3.3V to 4.2V or of wall adapter DC1 from 4.5V to 6.0V while monitoring the output voltage. 5. The output voltage measured at the respective output terminals should not vary by more than ±3% of the nominal voltage. B: Buck Ripple Voltage and Shutdown Current 1. Apply a DC power supply (DC1 5V in wall adapter mode, or DC2 3.6V in battery mode) at input terminals. Set the Buck output current between 0 and 300mA, and measure the buck output ripple voltage; the measurement should be less than ±20mVpp. 2. Apply a DC2 battery voltage 4.2V at VIN; set EN_TEST, EN_HOLD, EN2, EN3, EN4, EN5 to AGND, floating EN_KEY (J3, J4, J5, J6, J7, J8, and J9 installed; J11, J13, J14, J15, J16, J17, J18, J19, and J20 2-3 installed; J12 uninstalled), then the board would work in battery shutdown mode. Measure the shutdown supply current. The supply current will be less than 10μA. C: Short-Circuit and Over-temperature Protection 1. Raise the input voltage (DC1 6V in wall adapter mode, or DC2 4.2V in battery mode). 2. Apply a short from each output to GND at the evaluation board terminals. 3. Remove the short and verify that the output returns to its initial value Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 9 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications D: Enable Supply Outputs 1. Short the Enable pins to GND by shunting the EN2, EN3, EN4, or EN5 (J16, J15, J14, or J13 2-3 installed). The respective outputs OUT2, OUT3, OUT4, or OUT5 should decay to zero. Set EN_TEST, EN_HOLD, EN2, EN3, EN4, EN5 to AGND, float EN_KEY (J13, J14, J15, J16, J17, and J18 2-3 installed; J12 uninstalled); then VCORE and OUT1 will decay to zero. 2. Set EN_KEY to low, and EN_HOLD to high (J12, J18 1-2 installed); VCORE and OUT1 should turn on to the default value. Pull high EN2, EN3, EN4, EN5 by shunts (J16, J15, J14, or J13 1-2 installed) separately; the respective outputs OUT2, OUT3, OUT4,or OUT5 should turn-on to the default value. 3. When USE_USB is high, the CHGIN input current is limited to 100mA. To minimize inrush current, the VCORE and OUT1 outputs can be turned on simultaneously; however, OUT2 requires a delay, so a 10nF capacitor has been added to the EN2 pin to delay LDO2 for a very short time. E: Charge Current Curve 1. Apply a wall adapter input voltage DC1 and DC voltmeter across the CHGIN voltage terminals (TP2 to TP8). 2. Apply a battery voltage DC2 (use the SourceMeter 2400 to simulate the battery) at the BAT_IN terminals (TP1 to TP8). 3. Before turning on the board, set the shunt jumper as illustrated in Figure 7 and Table 2 (J3, J4, J5, J6, J7, J8, and J9 installed; J11, J19, and J20 2-3 installed; J12, J13, J14, J15, J16, J17, and J18 1-2 installed) to properly start up the board and charge the battery. 4. Vary the battery voltage DC2 from 2.7V to 4.2V; measure the charge current for each charging mode (trickle charge, constant current charge). 5. Vary the wall adapter voltage DC1 from 4.5V to 6.0V; repeat the measurement in Step 4. 6. If the IC temperature is too hot (>115°C typ.), the internal thermal regulation will lower the charging current to a safe level. F: Charger Safety Timer 1. Apply the wall adapter input DC1, battery input DC2 voltages at the respective input terminals (DC1:TP2 to TP8; DC2:TP1 to TP8), and set the shunt jumper to correctly start up and charge (J3, J4, J5, J6, J7, J8, and J9 installed; J11, J19, and J20 2-3 installed; J12, J13, J14, J15, J16, J17, and J18 1-2 installed). 2. Adjust the battery voltage DC2 to 2.7V (simulated by Source Meter 2400); the charger should operate in trickle charge mode. Continue to operate in this mode and note when the charger stops working. The charge cycle will terminate after 1 hour if the cell is not charged to the preconditioning threshold (2.8V typ.). 3. Reset ENBAT (J20 1-2 installed; then 1-2 uninstalled, 2-3 installed), and adjust the DC2 to 3.6V (simulated by Source Meter 2400), and repeat this test as above in constant current mode. The charge cycle will terminate after 3 hours if the cell is not charged to the charge voltage regulation level (4.2V typ.). 4. Reset ENBAT (J20 1-2 installed; then 1-2 uninstalled, 2-3 installed), and connect a fully charged Li+ battery in parallel with a power 40Ω/2W resister at the BAT_IN terminals (TP1 to TP8); repeat the above test in constant voltage mode. The charge cycle will terminate after 3 hours if the cell is not charged to the termination threshold current (default 5% of ICH_CC typ.). G: External Battery Over-Temperature Protection 1. Apply the wall adapter input DC1 and battery input DC2 voltages at the respective input terminals (DC1: TP2 to TP8; DC2: TP1 to TP8) and set the shunt jumper (J3, J4, J5, J6, J7, J8, and J9 installed; J11, J19, and J20 2-3 installed; J12, J13, J14, J15, J16, J17, and J18 1-2 installed) to correctly start up and charge the simulated or real battery. 2. Adjust the resistor value connected between the TS pin (J1_11, 13) and GND (initial value 10KΩ) to simulate NTC operation in battery pack. Monitor the voltage of TS (J1_11, 13) to GND; charging will suspend if the TS voltage is below the TS hot temperature fault threshold (328mV typ.) or above the TS cold temperature fault threshold (2.42V typ.). 10 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Figure 7: AAT2601/2601A Connection Diagram. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 11 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Waveforms Ch. 2: VLX (2V/div) Ch. 2: VLX (2V/div) Ch. 3: IINDUCTOR (200mA/div) Ch. 3: IINDUCTOR (200mA/div) Ch. 1: VOUT_AC (200mVac/div) Figure 8: Light Load Switching Waveforms (Buck) (VIN = 3.6V, VO = 1.8V, No Load). Ch. 2: EN2 (1V/div) Ch. 1: VOUT_AC1 (100mV/div) Figure 10: Load Transient (LDO1) (VIN = 3.6V, VO = 3.0V, IOUT = 40mA to 300mA transient). 12 Figure 9: Full Load Switching Waveforms (Buck) (VIN = 3.6V, VO = 1.8V, IOUT = 300mA). Ch. 3: IOUT (100mA/div) Ch. 1: VOUT_AC (200mVac/div) Ch. 1: VOUT2 (1V/div) Figure 11: Enable Start Up (LDO2) (VIN = 3.6V, VO = 3.0V, EN2 from low to high). Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 EVALUATION BOARD DATA SHEET EV159 Evaluation Board for the AAT2601/2601A Total Power Solution for Portable Applications Component Part Number Description Manufacturer U1 AAT2601/2601A L1 CDRH2D14-3R3NC Programmable 7-channel Total Power Management IC Inductor 3.3µH 820mA SMD Q1 CMPT3904 NPN transistor 40V 200mAdc SOT23 R17, R19, R24, R29, R31, R32, R33, R37 R1, R2, R3, R4, R6, R9, R10, R11, R12, R13, R14, R15, R16 R34, R35, R36, R38, R39 R28 R18 R5, R8, R20, R21, R22, R23, R25, R26, R27 R30 R7 C1, C2, C3, C14, C15 C5, C6, C7, C8, C9 C9 C4 C10, C11, C12 C13, C16, C17 D1 SW1 J1, J2 J3, J4, J5, J6, J7, J8, J9 J10 J11, J12, J13, J14, J15, J16, J17, J18, J19, J20 TP1~TP12 Chip Resistor Res 10KΩ 1/16W 1% 0402 SMD Sumida Central Semiconductor Any Chip Resistor Res 0Ω 1/16W 1% 0402 SMD Any Chip Resistor Chip Resistor Chip Resistor Chip Resistor Chip Resistor GRM21BR61C106K GRM219R61A475K GRM21BR60J226M GRM188R60J475K GRM188R71E104K GRM188R71H103K LED Switch Connector Connector Connector Connector Terminal Shunt PCB Res 4.75KΩ 1/16W 1% 0402 SMD Res 1.24KΩ 1/16W 1% 0402 SMD Res 100KΩ 1/16W 1% 0402 SMD Res 1KΩ 1/16W 1% 0402 SMD DNP, Do Not Place Cap Ceramic 10µF 0805 X5R 16V 10% Cap Ceramic 4.7µF 0805 X5R 10V 10% Cap Ceramic 22µF 0805 X5R 6.3V 20% Cap Ceramic 4.7µF 0603 X5R 6.3V 10% Cap Ceramic 0.1µF 0603 X5R 25V 10% Cap Ceramic 10nF 0603 X7R 50V 10% White LED, SMD Normal-open push button Header 13x2H Header 2 pins Header 2x2H Header 3 pins Terminal of test point Shunt for connectors AAT2601 Evaluation board PCB Any Any Any Any -Murata Murata Murata Murata Murata Murata Any Any Any Any Any Any Any Any Skyworks Skyworks Table 5: AAT2601/2601A Evaluation Board Bill Of Materials. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202284A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 22, 2012 13