ADP1650 Analog Devices, ADP1650 Datasheet
ADP1650
Specifications of ADP1650
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ADP1650 Summary of contents
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... The I grammability of timers, currents, and status bit readback for operation monitoring and safety control. The ADP1650 is available in a compact 12-ball, 0.5 mm pitch WLCSP package and a 10-lead LFCSP package, and operates within specification over the full −40°C to +125°C junction temperature range ...
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... ADP1650 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Recommended Specifications: Input and Output Capacitance and Inductance ............................................................................. C-Compatible Interface Timing Specifications ..................... 5 Absolute Maximum Ratings............................................................ 6 Thermal Data ................................................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...
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... Flash, 1200 mA LED current Torch, 200 mA LED current Flash, 1200 mA LED current Torch, 200 mA LED current Switching frequency = 3 MHz Switching frequency = 1.5 MHz Switching frequency = 3 MHz Switching frequency = 1.5 MHz I at VOUT = 300 mA LOAD Rev Page ADP1650 Min Typ Max 2.7 5.0 2.3 2.4 2.5 50 100 150 = 2 ...
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... ADP1650 2 Parameter Pass-Through Mode Transition, Flash VIN to LED_OUT, Entry VIN to LED_OUT, Exit Pass-Through Mode Transition, Torch VIN to LED_OUT, Entry VIN to LED_OUT, Exit DIGITAL INPUTS/GPIO Input Logic Low Voltage Input Logic High Voltage GPIO1, GPIO2, STROBE Pull-Down Torch Glitch Filtering Delay INDICATOR LED ...
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... Capacitive load for each bus line SU, DAT t t HIGH SU, STA t Sr HD, DAT 2 Figure 3. I C-Compatible Interface Timing Diagram Rev Page Min Typ Max 4 0.6 1.0 1.5 t BUF HD, STA t SU, STO P S ADP1650 Unit μF μF μH ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. THERMAL DATA The ADP1650 may be damaged if the junction temperature limits are exceeded. Monitoring T does not guarantee that within the specified temperature limits. In applications with ...
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... Exposed Pad. Connect the exposed pad to the ground plane for the LFCSP version. Rev Page VIN 1 10 STROBE GPIO2 ADP1650 GPIO1 TOP VIEW SDA 4 7 VOUT SCL 5 6 LED_OUT NOTES 1. THE EXPOSED PADDLE MUST BE CONNECTED TO GROUND. Figure 5. LFCSP Pin Configuration ) to <1 μA. Registers are set to Q ADP1650 ...
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... ADP1650 TYPICAL PERFORMANCE CHARACTERISTICS I = inductor current LED current, LED_OUT = LED output LED LED_OUT 3 I LED STROBE 1 CH1 5V CH2 1A Ω M100µs CH3 1V CH4 500mA Ω T 402.2µs Figure 6. Startup Flash Mode 3 LED_OUT 3 I LED GPIO1 (Torch) ...
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... Figure 16. Voltage Regulation Mode Efficiency vs. Load Current 1111 1110 1100 1010 1000 0110 0100 0010 0000 0 100 120 Figure 17. ADC External Voltage Mode Transfer Characteristic Rev Page ADP1650 3.2V IN 0.5 0.7 0.9 1.1 1.3 LED CURRENT (A) Figure 15. Flash Mode Efficiency vs. LED Current ...
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... ADP1650 1111 1110 1100 1010 1000 0110 0100 0010 0000 DIE TEMPERATURE (°C) Figure 18. ADC Die Temperature Mode Transfer Characteristic 1111 1110 1100 1010 1000 0110 0100 0010 0000 2.8 3.0 3.2 3.4 3.6 3.8 LED_OUT VOLTAGE (V) Figure 19. ADC LED V Mode Transfer Characteristic F 3.760 3.755 3 ...
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... TEMPERATURE (°C) Figure 24. LED Current Error vs. Temperature, I 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 –2.5 110 –40 = 1500 mA Figure 25. LED Current Error vs. Temperature, I LED Rev Page ADP1650 110 TEMPERATURE (°C) = 1000 mA LED ...
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... The ADP1650 includes a boost converter and a current regulator suitable for powering one high power white LED. WHITE LED DRIVER The ADP1650 drives a synchronous 3 MHz boost converter as required to power the high power LED. If the sum of the LED forward voltage and current regulator voltage is higher than the battery voltage, the boost turns on ...
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... ADP1650 SETS LED_MOD TO 00. REG 0x04, OUTPUT_EN = 1 STR_LV = 0 LED_MOD = 11 Figure 29. Flash Operation: Edge-Sensitive Mode 0A ADP1650 SETS OUTPUT_EN TO 0. ADP1650 SETS LED_MOD TO 00. REG 0x03, I_TOR = XXX mA REG 0x03, I_FL = XXXXX mA REG 0x04, OUTPUT_EN = 1 STR_LV = 1 LED_MOD = 10 Figure 30. Enabling Assist to Flash (Level-Sensitive) Mode ...
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... LED_MOD = 00 Figure 32. Enabling Flash Mode from External Torch Mode TxMASK OPERATION When the ADP1650 is in flash mode, the TxMASK1 and TxMASK2 functions reduce the battery load in response to the system enabling a power amplifier. The device remains in flash mode, but the LED driver output current reduces to the pro- grammed TxMASK light level in less than 21 μ ...
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... ADP1650 exits the chosen mode. To perform an immediate conversion, set ADC_EN to the required mode during ADP1650 operation (OUTPUT_EN = 1). Case F Note that an ADC conversion cannot be performed when the ADP1650 is idle. This is interpreted as an attempt to set up a delayed conversion. LED V Mode F The ADC can measure the LED V torch modes ...
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... SDA, SCL POWER-ON RESET *THE VOUT PIN IS CONNECTED TO THE SW NODE WHEN THE ADP1650 IS NOT ENABLED. VOUT SHOULD NOT BE CONNECTED DIRECTLY TO A POSITIVE EXTERNAL VOLTAGE SOURCE BECAUSE THIS WILL CAUSE CURRENT TO FLOW FROM VOUT TO THE BATTERY. Write ADC_EN = 10 to begin a die temperature measurement. ...
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... CMOS IMAGE SENSOR STROBE GPIO2 APPLICATIONS PROCESSOR SCL 2 SDA, SCL I C BUS SDA POWER-ON RESET EN GPIO1 Figure 41. ADP1650 Voltage Regulation Mode: Class-D Audio Application INPUT VOLTAGE = 2.7V TO 5.0V 10µF 1.0µH VIN SW VOUT = 5.0V ±8.5%, IMAX = 500mA VOUT 0.1µF 10µF ADP1650 AUDIO IN+ LED_OUT AUDIO IN– ...
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... Bit 6 and Bit 7 in Register 0x04). The default mode of the ADP1650 is soft current limit mode. If the peak inductor current hits the limit, Bit 1 of the fault informa- tion register is set, and the inductor and LED current cannot increase further ...
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... CHIP ADDRESS Figure 42 illustrates the I The subaddress content selects which of the nine ADP1650 registers is written to. The ADP1650 sends an acknowledgment to the master after the 8-bit data byte has been written. Figure 43 shows the addresses are The register definitions are shown in the I section ...
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... ADP1650 REGISTER MAP The lowest bit number (0) represents the least significant bit, and the highest bit number (7) represents the most significant bit. Table 9. Design Information Register (Register 0x00) Bit R/W [7:0] R Table 10. VREF and Timer Register (Register 0x02) Bit Name Bit R/W IO2_CFG ...
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... I_TOR [2:0] R/W Torch and assist light current value setting 000 = 25 mA 001 = 50 mA 010 = 75 mA 011 = 100 mA (default) 100 = 125 mA 101 = 150 mA 110 = 175 mA 111 = 200 mA Rev Page ADP1650 ...
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... ADP1650 Table 12. Output Mode Register (Register 0x04) Bit Name Bit R/W IL_PEAK [7:6] R/W STR_LV 5 R/W FREQ_FB 4 R/W OUTPUT_EN 3 R/W STR_MODE 2 R/W LED_MOD [1:0] R/W Table 13. Fault Information Register (Register 0x05) Bit Name Bit R/W FL_OVP 7 R FL_SC 6 R FL_OT 5 R FL_TO 4 R FL_TX1 3 R FL_IO2 2 R FL_IL 1 R FL_IDC 0 R Description Inductor peak current limit setting ...
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... TxMASK1 operational mode foldback current 0000 = 100 mA 0001 = 150 mA 0010 = 200 mA 0011 = 250 mA 0100 = 300 mA 0101 = 350 mA 0110 = 400 mA (default) 0111 = 450 mA 1000 = 500 mA 1001 = 550 mA 1010 = 600 mA 1011 = 650 mA 1100 = 700 mA 1101 = 750 mA 1110 = 800 mA 1111 = 850 mA Rev Page ADP1650 ...
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... ADP1650 Table 15. Additional Mode Register, AD_MOD (Register 0x07) Bit Name Bit R/W DYN_OVP 7 R/W SW_LO 6 R/W STR_POL 5 R/W I_ILED [4:3] R/W IL_DC [2:1] R/W IL_DC_EN 0 R/W Table 16. Additional Mode Register, ADC (Register 0x08) Bit Name Bit R/W Reserved 7 R/W FL_VB_LO 6 R ADC_VAL [5:2] R/W ADC_EN [1:0] R/W Description Dynamic OVP 0 = dynamic OVP off (default dynamic OVP on Force 1 ...
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... R/W I_VB_LO [6:3] R V_VB_LO [2:0] R/W Description Soft inductor peak current limit 0 = disabled (ADP1650 is disabled when the inductor peak current limit is hit enabled (default) Current setting for VBAT low mode 0000 = 300 mA 0001 = 350 mA 0010 = 400 mA 0011 = 450 mA 0100 = 500 mA 0101 = 550 mA 0110 = 600 mA 0111 = 650 mA ...
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... Higher value input capacitors help to reduce the input voltage ripple and improve transient response. To minimize supply noise, place the input capacitor as close to the VIN pin of the ADP1650 as possible. As with the output Table 18. Suggested Inductors Vendor Value (μH) Toko 1 ...
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... Figure 44. DC Bias Characteristic × 6 μF Ceramic Capacitor Substituting these values in the equation yields μF × (1 − 0.15) × (1 − 0.1) = 2.29 μF EFF The effective capacitance needed for stability, which includes temperature and dc bias effects, is 3.0 μF. Rev Page ADP1650 2.52 3.78 5.04 6.30 ...
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... Route the LED_OUT path away from the inductor and SW node to minimize noise and magnetic interference. Figure 45. Layout of the ADP1650 Driving a High Power White LED (WLCSP) Figure 46. Example Layout of the ADP1650 Driving a High Power White LED (LFCSP) • Maximize the size of ground metal on the component side to help with thermal dissipation. • ...
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... Wafer Level Chip Scale Package [WLCSP] 10-Lead Frame Chip Scale Package [LFCSP_WD] Evaluation Board WLCSP Package Evaluation Board LFCSP Package Rev Page 1.50 REF C D 0.50 REF BOTTOM VIEW (BALL SIDE UP) 1.00 REF 0.50 BSC 10 1.74 PAD 1.64 1. Package Option CB-12-4 CP-10-9 ADP1650 Branding LE4 LGX ...
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... ADP1650 NOTES Rev Page ...
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... NOTES Rev Page ADP1650 ...
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... ADP1650 NOTES ©2010–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08837-0-4/11(C) Rev Page ...