ZHCSGU2A July   2017  – September 2017 LP5569

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Charge-Pump Electrical Characteristics
    7. 7.7  LED Current Sinks Electrical Characteristics
    8. 7.8  Logic Interface Characteristics
    9. 7.9  Timing Requirements (EN/PWM)
    10. 7.10 Serial-Bus Timing Requirements (SDA, SCL), See
    11. 7.11 External Clock Timing Requirements (CLK), See
    12. 7.12 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Programming
      2. 8.1.2 Energy Efficiency
      3. 8.1.3 Protection Features
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Current Sinks
        1. 8.3.1.1 Overview
        2. 8.3.1.2 Controlling the Low-Side Current Sinks
          1. 8.3.1.2.1 Direct Register Control
          2. 8.3.1.2.2 Controlling by Program Execution Engines
          3. 8.3.1.2.3 Master Fader Control
            1. 8.3.1.2.3.1 PWM Master Fader on EN/PWM Pin
            2. 8.3.1.2.3.2 PWM Master Fader Resolution and Input Frequency Range
            3. 8.3.1.2.3.3 PWM Master Fader Hysteresis
          4. 8.3.1.2.4 EN/PWM Input Timeout
      2. 8.3.2 Charge Pump
        1. 8.3.2.1 Overview
        2. 8.3.2.2 Pre-Regulation
        3. 8.3.2.3 Input Current Limit
        4. 8.3.2.4 Output Discharge
        5. 8.3.2.5 Controlling the Charge Pump
        6. 8.3.2.6 LED Forward Voltage Monitoring
      3. 8.3.3 Energy Efficiency
        1. 8.3.3.1 LED Powering
      4. 8.3.4 Automatic Power-Save Mode
      5. 8.3.5 Protection Features
        1. 8.3.5.1 Thermal Shutdown (TSD)
        2. 8.3.5.2 Undervoltage Lockout (UVLO)
        3. 8.3.5.3 Power-On Reset (POR)
        4. 8.3.5.4 LED Fault Detection
          1. 8.3.5.4.1 Open LED
          2. 8.3.5.4.2 Shorted LED
      6. 8.3.6 Clock Generation and Synchronization
      7. 8.3.7 GPIO/TRIG/INT Multifunctional I/O
    4. 8.4 Device Functional Modes
      1. 8.4.1 Modes Of Operation
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
        1. 8.5.1.1 Data Validity
        2. 8.5.1.2 Start and Stop Conditions
        3. 8.5.1.3 Transferring Data
        4. 8.5.1.4 I2C Slave Addressing
        5. 8.5.1.5 Control Register Write Cycle
        6. 8.5.1.6 Control Register Read Cycle
        7. 8.5.1.7 Auto-Increment Feature
      2. 8.5.2 Execution Engine Programming
        1. 8.5.2.1 SRAM Memory
        2. 8.5.2.2 Variables
        3. 8.5.2.3 Instruction Set
        4. 8.5.2.4 LED Driver Instructions
          1. 8.5.2.4.1 Ramp
          2. 8.5.2.4.2 Ramp Instruction Application Example
          3. 8.5.2.4.3 Set_PWM
          4. 8.5.2.4.4 Wait
        5. 8.5.2.5 LED Mapping Instructions
          1. 8.5.2.5.1  LOAD_START and LOAD_END
          2. 8.5.2.5.2  MAP_START
          3. 8.5.2.5.3  MAP_SEL
          4. 8.5.2.5.4  MAP_CLR
          5. 8.5.2.5.5  MAP_NEXT
          6. 8.5.2.5.6  LOAD_NEXT
          7. 8.5.2.5.7  MAP_PREV
          8. 8.5.2.5.8  LOAD_PREV
          9. 8.5.2.5.9  MAP_ADDR
          10. 8.5.2.5.10 LOAD_ADDR
        6. 8.5.2.6 Branch Instructions
          1. 8.5.2.6.1 BRANCH
          2. 8.5.2.6.2 INT
          3. 8.5.2.6.3 RST
          4. 8.5.2.6.4 END
          5. 8.5.2.6.5 TRIGGER and TRIG_CLEAR
          6. 8.5.2.6.6 JNE, JGE, JL, and JE
        7. 8.5.2.7 Data Transfer and Arithmetic Instructions
          1. 8.5.2.7.1 LD
          2. 8.5.2.7.2 ADD
          3. 8.5.2.7.3 SUB
    6. 8.6 Register Maps
      1. 8.6.1 LP5569_MAP Registers
        1. 8.6.1.1  CONFIG Register (Address = 0h) [reset = 0h]
        2. 8.6.1.2  LED_ENGINE_CONTROL1 Register (Address = 1h) [reset = 0h]
        3. 8.6.1.3  LED_ENGINE_CONTROL2 Register (Address = 2h) [reset = 0h]
        4. 8.6.1.4  LED0_CONTROL Register (Address = 7h) [reset = 0h]
        5. 8.6.1.5  LED1_CONTROL Register (Address = 8h) [reset = 0h]
        6. 8.6.1.6  LED2_CONTROL Register (Address = 9h) [reset = 0h]
        7. 8.6.1.7  LED3_CONTROL Register (Address = Ah) [reset = 0h]
        8. 8.6.1.8  LED4_CONTROL Register (Address = Bh) [reset = 0h]
        9. 8.6.1.9  LED5_CONTROL Register (Address = Ch) [reset = 0h]
        10. 8.6.1.10 LED6_CONTROL Register (Address = Dh) [reset = 0h]
        11. 8.6.1.11 LED7_CONTROL Register (Address = Eh) [reset = 0h]
        12. 8.6.1.12 LED8_CONTROL Register (Address = Fh) [reset = 0h]
        13. 8.6.1.13 LED0_PWM Register (Address = 16h) [reset = 0h]
        14. 8.6.1.14 LED1_PWM Register (Address = 17h) [reset = 0h]
        15. 8.6.1.15 LED2_PWM Register (Address = 18h) [reset = 0h]
        16. 8.6.1.16 LED3_PWM Register (Address = 19h) [reset = 0h]
        17. 8.6.1.17 LED4_PWM Register (Address = 1Ah) [reset = 0h]
        18. 8.6.1.18 LED5_PWM Register (Address = 1Bh) [reset = 0h]
        19. 8.6.1.19 LED6_PWM Register (Address = 1Ch) [reset = 0h]
        20. 8.6.1.20 LED7_PWM Register (Address = 1Dh) [reset = 0h]
        21. 8.6.1.21 LED8_PWM Register (Address = 1Eh) [reset = 0h]
        22. 8.6.1.22 LED0_CURRENT Register (Address = 22h) [reset = AFh]
        23. 8.6.1.23 LED1_CURRENT Register (Address = 23h) [reset = AFh]
        24. 8.6.1.24 LED2_CURRENT Register (Address = 24h) [reset = AFh]
        25. 8.6.1.25 LED3_CURRENT Register (Address = 25h) [reset = AFh]
        26. 8.6.1.26 LED4_CURRENT Register (Address = 26h) [reset = AFh]
        27. 8.6.1.27 LED5_CURRENT Register (Address = 27h) [reset = AFh]
        28. 8.6.1.28 LED6_CURRENT Register (Address = 28h) [reset = AFh]
        29. 8.6.1.29 LED7_CURRENT Register (Address = 29h) [reset = AFh]
        30. 8.6.1.30 LED8_CURRENT Register (Address = 2Ah) [reset = AFh]
        31. 8.6.1.31 MISC Register (Address = 2Fh) [reset = 40h]
        32. 8.6.1.32 ENGINE1_PC Register (Address = 30h) [reset = 0h]
        33. 8.6.1.33 ENGINE2_PC Register (Address = 31h) [reset = 0h]
        34. 8.6.1.34 ENGINE3_PC Register (Address = 32h) [reset = 0h]
        35. 8.6.1.35 MISC2 Register (Address = 33h) [reset = 2h]
        36. 8.6.1.36 ENGINE_STATUS Register (Address = 3Ch) [reset = 80h]
        37. 8.6.1.37 IO_CONTROL Register (Address = 3Dh) [reset = 2h]
        38. 8.6.1.38 VARIABLE_D Register (Address = 3Eh) [reset = 0h]
        39. 8.6.1.39 RESET Register (Address = 3Fh) [reset = 0h]
        40. 8.6.1.40 ENGINE1_VARIABLE_A Register (Address = 42h) [reset = 0h]
        41. 8.6.1.41 ENGINE2_VARIABLE_A Register (Address = 43h) [reset = 0h]
        42. 8.6.1.42 ENGINE3_VARIABLE_A Register (Address = 44h) [reset = 0h]
        43. 8.6.1.43 MASTER_FADER1 Register (Address = 46h) [reset = 0h]
        44. 8.6.1.44 MASTER_FADER2 Register (Address = 47h) [reset = 0h]
        45. 8.6.1.45 MASTER_FADER3 Register (Address = 48h) [reset = 0h]
        46. 8.6.1.46 MASTER_FADER_PWM Register (Address = 4Ah) [reset = 0h]
        47. 8.6.1.47 ENGINE1_PROG_START Register (Address = 4Bh) [reset = 0h]
        48. 8.6.1.48 ENGINE2_PROG_START Register (Address = 4Ch) [reset = 0h]
        49. 8.6.1.49 ENGINE3_PROG_START Register (Address = 4Dh) [reset = 0h]
        50. 8.6.1.50 PROG_MEM_PAGE_SELECT Register (Address = 4Fh) [reset = 0h]
        51. 8.6.1.51 PROGRAM_MEM_00 Register (Address = 50h) [reset = 0h]
        52. 8.6.1.52 PROGRAM_MEM_01 Register (Address = 51h) [reset = 0h]
        53. 8.6.1.53 PROGRAM_MEM_02 Register (Address = 52h) [reset = 0h]
        54. 8.6.1.54 PROGRAM_MEM_03 Register (Address = 53h) [reset = 0h]
        55. 8.6.1.55 PROGRAM_MEM_04 Register (Address = 54h) [reset = 0h]
        56. 8.6.1.56 PROGRAM_MEM_05 Register (Address = 55h) [reset = 0h]
        57. 8.6.1.57 PROGRAM_MEM_06 Register (Address = 56h) [reset = 0h]
        58. 8.6.1.58 PROGRAM_MEM_07 Register (Address = 57h) [reset = 0h]
        59. 8.6.1.59 PROGRAM_MEM_08 Register (Address = 58h) [reset = 0h]
        60. 8.6.1.60 PROGRAM_MEM_09 Register (Address = 59h) [reset = 0h]
        61. 8.6.1.61 PROGRAM_MEM_10 Register (Address = 5Ah) [reset = 0h]
        62. 8.6.1.62 PROGRAM_MEM_11 Register (Address = 5Bh) [reset = 0h]
        63. 8.6.1.63 PROGRAM_MEM_12 Register (Address = 5Ch) [reset = 0h]
        64. 8.6.1.64 PROGRAM_MEM_13 Register (Address = 5Dh) [reset = 0h]
        65. 8.6.1.65 PROGRAM_MEM_14 Register (Address = 5Eh) [reset = 0h]
        66. 8.6.1.66 PROGRAM_MEM_15 Register (Address = 5Fh) [reset = 0h]
        67. 8.6.1.67 PROGRAM_MEM_16 Register (Address = 60h) [reset = 0h]
        68. 8.6.1.68 PROGRAM_MEM_17 Register (Address = 61h) [reset = 0h]
        69. 8.6.1.69 PROGRAM_MEM_18 Register (Address = 62h) [reset = 0h]
        70. 8.6.1.70 PROGRAM_MEM_19 Register (Address = 63h) [reset = 0h]
        71. 8.6.1.71 PROGRAM_MEM_20 Register (Address = 64h) [reset = 0h]
        72. 8.6.1.72 PROGRAM_MEM_21 Register (Address = 65h) [reset = 0h]
        73. 8.6.1.73 PROGRAM_MEM_22 Register (Address = 66h) [reset = 0h]
        74. 8.6.1.74 PROGRAM_MEM_23 Register (Address = 67h) [reset = 0h]
        75. 8.6.1.75 PROGRAM_MEM_24 Register (Address = 68h) [reset = 0h]
        76. 8.6.1.76 PROGRAM_MEM_25 Register (Address = 69h) [reset = 0h]
        77. 8.6.1.77 PROGRAM_MEM_26 Register (Address = 6Ah) [reset = 0h]
        78. 8.6.1.78 PROGRAM_MEM_27 Register (Address = 6Bh) [reset = 0h]
        79. 8.6.1.79 PROGRAM_MEM_28 Register (Address = 6Ch) [reset = 0h]
        80. 8.6.1.80 PROGRAM_MEM_29 Register (Address = 6Dh) [reset = 0h]
        81. 8.6.1.81 PROGRAM_MEM_30 Register (Address = 6Eh) [reset = 0h]
        82. 8.6.1.82 PROGRAM_MEM_31 Register (Address = 6Fh) [reset = 0h]
        83. 8.6.1.83 ENGINE1_MAPPING1 Register (Address = 70h) [reset = 0h]
        84. 8.6.1.84 ENGINE1_MAPPING2 Register (Address = 71h) [reset = 0h]
        85. 8.6.1.85 ENGINE2_MAPPING1 Register (Address = 72h) [reset = 0h]
        86. 8.6.1.86 ENGINE2_MAPPING2 Register (Address = 73h) [reset = 0h]
        87. 8.6.1.87 ENGINE3_MAPPING1 Register (Address = 74h) [reset = 0h]
        88. 8.6.1.88 ENGINE3_MAPPING2 Register (Address = 75h) [reset = 0h]
        89. 8.6.1.89 PWM_CONFIG Register (Address = 80h) [reset = 4h]
        90. 8.6.1.90 LED_FAULT1 Register (Address = 81h) [reset = 0h]
        91. 8.6.1.91 LED_FAULT2 Register (Address = 82h) [reset = 0h]
        92. 8.6.1.92 GENERAL_FAULT Register (Address = 83h) [reset = 4h]
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Single LP5569 Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Using Multiple LP5569 Devices
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Flying Capacitor Placement
      2. 11.1.2 Output Capacitor Placement
      3. 11.1.3 Input Capacitor Placement
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7 Specifications

7.1 Absolute Maximum Ratings

over operating ambient temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Voltage on VIN, CLK, ADDR, EN/PWM, GPIO/TRIG/INT, SCL, SDA, VOUT(2) –0.3 6 V
Voltage on LED0 to LED8, C1–, C2–, C1+, C2+ −0.3 VVIN + 0.3 V with 6 V max. V
Voltage on V1P8 −0.3 2 V
Continuous power dissipation Internally limited Internally limited
Junction temperature, TJ-MAX –40 125 °C
Storage temperature, Tstg −65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) VOUT cannot be forced to a power supply during device shutdown.

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2500 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±250
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

over operating ambient temperature range (unless otherwise noted)
MIN MAX UNIT
Input voltage on VIN 2.5 5.5 V
Voltage on LED0 to LED8, C1–, C2–, C1+, C2+, VOUT 0 VVIN V
Voltage on CLK, ADDR, EN/PWM, GPIO/TRIG/INT, SDA, SCL 0 VVIN V
Input voltage on V1P8 1.65 1.95 V
Output current on VOUT 0 160 mA
Operating ambient temperature, TA (1) −40 85 °C
(1) In applications where high power dissipation and/or poor PCB cooling status is present, the maximum ambient temperature might require derating. Maximum ambient temperature (TA-MAX) is dependent on the maximum operating junction temperature (TJ-MAX-OP = 125°C), the maximum power dissipation of the device in the application (PD-MAX), and the junction-to ambient thermal resistance of the device in the application (RθJA), as given by the equation: TA-MAX = TJ-MAX-OP – (RθJA × PD-MAX).

7.4 Thermal Information

THERMAL METRIC(1) LP5569 UNIT
RTW (WQFN)
24 PINS
RθJA Junction-to-ambient thermal resistance 35.8 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 26.7 °C/W
RθJB Junction-to-board thermal resistance 13.1 °C/W
ψJT Junction-to-top characterization parameter 0.4 °C/W
ψJB Junction-to-board characterization parameter 13.1 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 4.6 °C/W
(1) For more information about traditional and new thermal metrics, see Semiconductor and IC Package Thermal Metrics.

7.5 Electrical Characteristics

Unless otherwise noted, specifications apply to the LP5569 device in a circuit per the typical application diagram for the single device with VVIN = 3.6 V, V1P8 = 1.8 V, VEN/PWM = VVIN, CIN = COUT = CFLY1 = CFLY2 = 1 µF. Typical (TYP) values apply for TA = 25°C and minimum (MIN) and maximum (MAX) apply over the operating ambient temperature range (−40°C < TA < 85°C).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
IVIN Standby supply current VEN/PWM = 0 V, chip_en (bit) = 0 0.2 1 µA
VEN/PWM = 3.3 V, chip_en (bit) = 0, external CLK not running 1 2
VEN/PWM = 3.3 V, chip_en (bit) = 0, external CLK running 2 4
Normal-mode supply current External CLK running, charge pump and current sinks disabled 56 70 µA
Charge pump in 1× mode, no load, current sinks disabled 65 90
Charge pump in 1.5× mode, no load, current-sink outputs disabled 1.8 mA
Power-save mode supply current External CLK running, see Automatic Power-Save Mode 10 15 µA
Internal oscillator running 10 15
IV1P8 Standby supply current VEN/PWM = 0 V, chip_en(bit) = 0 0.2 1 µA
VEN/PWM = 3.3 V, chip_en (bit) = 0, external CLK not running 0.2 2 µA
VEN/PWM = 3.3 V, chip_en (bit) = 0, external CLK running 1 4 µA
Normal-mode supply current External CLK running, charge pump and current sinks disabled 174 190 µA
Charge pump in 1× mode, no load, current sinks disabled 174 190 µA
Charge pump in 1.5× mode, no load, current-sink- outputs disabled 180 µA
Powersave-mode supply current External CLK running 1 5 µA
Internal oscillator running 1 5 µA
ƒOSC 32-kHz internal oscillator frequency accuracy TA = 25°C –10% 10%
10-MHz internal oscillator frequency accuracy –7% 7%
VUVLO Undervoltage lockout VVIN falling 2.2 V
VVIN rising 2.3

7.6 Charge-Pump Electrical Characteristics

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ROUT Charge-pump output resistance Gain = 1×, VVIN = 4.2 V 1 Ω
Gain = 1.5×, VVIN = 3.7 V 3.5
VOUT VVIN = 3.7 V, IOUT = 160 mA, gain = 1.5× 4.41 4.5 4.59 V
ƒSW Switching frequency 1.25 MHz
ICL Output current limit VOUT = 0 V, VVIN = 3.7 V, CP_CONFIG = 0xFF 600 mA
tON VOUT turnon time IOUT = 0 mA, VIN ≥ 3 V, VOUT > 4.1 V, gain = 1.5× 100 µs
IOUT Maximum output current VVIN > 3.1 V, VOUT dropped 10%, gain = 1.5× 200 mA
VIN > 2.5 V, VOUT dropped 10%, gain = 1.5× 150

7.7 LED Current Sinks Electrical Characteristics

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ILEAKAGE Leakage current (LED0 to LED8) PWM = 0%, VLED = 5 V 1 µA
IMAX Maximum sink current 24.5 25.5 26.5 mA
ILED_ACC Sink current accuracy(1) Current set to 17.5 mA. PWM = 100% –4.5% 4.5%
ILED_MATCH Matching(1) Current set to 17.5 mA 1% 2.5%
ƒLED LED switching frequency 19.5 kHz
VSAT Saturation voltage(2) Output current set to 25.5 mA 90 110 mV
(1) Output-current accuracy is the difference between the actual value of the output current and the programmed value of this current. Matching is the maximum difference from the average. For the constant-current outputs on the device (LED0 to LED8), the following are determined: the maximum output current (MAX), the minimum output current (MIN), and the average output current of all outputs (AVG). The matching number is calculated: (MAX – MIN) / AVG. The typical specification provided is the most likely norm of the matching figure for all devices. Note that some manufacturers have different definitions in use.
(2) Saturation voltage is defined as the voltage when the LED current has dropped 10% from the value measured at 1 V.

7.8 Logic Interface Characteristics

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
LOGIC INPUT (EN/PWM, SCL, ADDR)
VIL Input low level 0.4 V
VIH Input high level 1.25 V
Ilkg Input leakage current VI ≤ VVIN –1 1 µA
LOGIC OUTPUT (SDA, GPIO/TRIG/INT, CLK)
VIL Input low level Pin configured as input 0.4 V
VIH Input high level Pin configured as input 1.25 V
Ilkg Input leakage current Pin configured as input, VVIN = 5.5 V, VI ≤ VVIN –1 1 µA
VOL Output low level IPULLUP = 3 mA 0.2 0.5 V
IL Output leakage current Pin configured as output, Hi-Z state 1 µA

7.9 Timing Requirements (EN/PWM)

MIN TYP MAX UNIT
tEN Enable time, EN/PWM first rising edge until first I2C access 2 3 ms
tEN_TIMEOUT EN timeout, EN/PWM = low time while in standby mode (enable function) 15 ms
tPWM_TIMEOUT PWM timeout, EN/PWM = low time while in normal mode (PWM function) 15 ms
PWMres Resolution for EN/PWM input when configured as PWM, fPWM =10 kHz 10 bits

7.10 Serial-Bus Timing Requirements (SDA, SCL), See Figure 1

I2C fast mode
MIN MAX UNIT
ƒSCL Clock frequency 0 400 kHz
1 Hold time (repeated) START condition 0.6 µs
2 Clock low time 1.3 µs
3 Clock high time 600 ns
4 Setup time for a repeated START condition 600 ns
5 Data hold time 0 ns
6 Data setup time 100 ns
7 Rise time of SDA and SCL 20 + 0.1Cb 300 ns
8 Fall time of SDA and SCL 15 + 0.1Cb 300 ns
9 Setup time for STOP condition 600 ns
10 Bus-free time between a STOP and a START condition 1.3 µs
Cb Capacitive load for each bus line 10 200 pF

7.11 External Clock Timing Requirements (CLK), See Figure 2

over operating ambient temperature range (unless otherwise noted)
MIN TYP MAX UNIT
ƒCLK Clock frequency 32.7 kHz
tCLKH High time 6 µs
tCLKL Low time 6 µs
tr Clock rise time, 10% rising edge to 90% rising edge 2 µs
tf Clock fall time, 90% falling edge to 10% falling edge 2 µs
LP5569 30198600.png Figure 1. Timing Parameters
LP5569 301986300.png Figure 2. External Clock Signal

7.12 Typical Characteristics

Unless otherwise specified: VVIN = 3.6 V, CIN = COUT = 1 μF, C1 = C2 = 1 μF, TA = 25°C. CIN, COUT, C1, C2: Low-ESR surface-mount ceramic capacitors (MLCCs) used in setting electrical characteristics.
LP5569 D004_SNVSAP8.gif
Figure 3. Charge Pump 1.5× Efficiency vs Load Current
LP5569 Charge_Pump_0x08_VIN_3.6v_Temperature_25C.gif
Figure 5. Charge Pump (1×) Start-Up Waveform
LP5569 Charge_Pump_0x18_VIN_3.6v_Temperature_25C.gif
Figure 7. Charge Pump (Auto) Start-Up Waveform
LP5569 Bus with Charge Pump.gif
Figure 9. Serial Bus Write and Charge Pump Start-Up Waveform
LP5569 D009_SNVSAP8.gif
ILEDx setting per channel = 17.5 mA
Figure 11. LED Current Accuracy Distribution
LP5569 D005_SNVSAP8.gif
Figure 4. Output Voltage of the Charge Pump (1.5×) as a Function of Load Current at Six Input Voltage Levels
LP5569 Charge_Pump_0x10_VIN_3.6v_Temperature_25C.gif
Figure 6. Charge Pump (1.5×) Start-Up Waveform
LP5569 D006_SNVSAP8.gif
Figure 8. Supply Current in Power-Save Mode vs VVIN
LP5569 D008_SNVSAP8.gif
ILEDx setting per channel = 17.5 mA
Figure 10. LED Current Matching Distribution
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