SLVS790E November   2007  – April 2019 TPS61165

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
  4. 4 Revision History
  5. 5 Device Options
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Recommended Operating Conditions
    3. 7.3 Thermal Information
    4. 7.4 Electrical Characteristics
    5. 7.5 Timing Requirements
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Soft Start-Up
      2. 8.3.2 Open LED Protection
      3. 8.3.3 Undervoltage Lockout
      4. 8.3.4 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Maximum Output Current
      2. 9.1.2 Inductor Selection
      3. 9.1.3 Schottky Diode Selection
      4. 9.1.4 Compensation Capacitor Selection
      5. 9.1.5 Input and Output Capacitor Selection
    2. 9.2 Typical Applications
      1. 9.2.1 TPS61165 Typical Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 LED Brightness Dimming Mode Selection
          2. 9.2.1.2.2 PWM Brightness Dimming
          3. 9.2.1.2.3 Digital One-Wire Brightness Dimming
          4. 9.2.1.2.4 EasyScale: One-Wire Digital Dimming
          5. 9.2.1.2.5 Current Program
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Additional Application Circuits
    3. 9.3 Do's and Don'ts
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.4 Electrical Characteristics

VIN = 3.6 V, CTRL = VIN, TA = –40°C to +85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
VI Input voltage range, VIN 3 18 V
IQ Operating quiescent current into VIN Device PWM switching no load 2.3 mA
ISD Shutdown current CRTL=GND, VIN = 4.2 V 1 μA
UVLO Undervoltage lockout threshold VIN falling 2.2 2.5 V
Vhys Undervoltage lockout hysterisis 70 mV
ENABLE AND REFERENCE CONTROL
V(CTRLh) CTRL logic high voltage VIN = 3 V to 18 V 1.2 V
V(CTRLl) CTRL logic low voltage VIN = 3 V to 18 V 0.4 V
R(CTRL) CTRL pull down resistor 400 800 1600 kΩ
toff CTRL pulse width to shutdown CTRL high to low 2.5 ms
tes_det Easy Scale detection time(1) CTRL pin low 260 μs
tes_delay Easy Scale detection delay 100 μs
tes_win Easy Scale detection window time Measured from CTRL high 1 ms
VOLTAGE AND CURRENT CONTROL
VREF Voltage feedback regulation voltage 196 200 204 mV
V(REF_PWM) Voltage feedback regulation voltage under brightness control VFB = 50 mV 47 50 53 mV
VFB = 20 mV 17 20 23
IFB Voltage feedback input bias current VFB = 200 mV 2 μA
fS Oscillator frequency 1.0 1.2 1.5 MHz
Dmax Maximum duty cycle VFB = 100 mV 90% 93%
tmin_on Minimum on pulse width 40 ns
Isink Comp pin sink current 100 μA
Isource Comp pin source current 100 μA
Gea Error amplifier transconductance 240 320 400 umho
Rea Error amplifier output resistance 6 MΩ
fea Error amplifier crossover frequency 5 pF connected to COMP 500 kHz
POWER SWITCH
RDS(ON) N-channel MOSFET on-resistance VIN = 3.6 V 0.3 0.6 Ω
VIN = 3.0 V 0.7
ILN_NFET N-channel leakage current VSW = 35 V, TA = 25°C 1 μA
OC and OLP
ILIM N-Channel MOSFET current limit D = Dmax 0.96 1.2 1.44 A
ILIM_Start Start up current limit D = Dmax 0.7 A
tHalf_LIM Time step for half current limit 5 ms
Vovp Open LED protection threshold Measured on the SW pin 37 38 39 V
V(FB_OVP) Open LED protection threshold on FB Measured on the FB pin, percentage of Vref, Vref = 200 mV and 20 mV 50%
tREF VREF filter time constant 180 μs
tstep VREF ramp up time Each step, Measured as number of cycles of the 1.2-MHz clock 213 μs
THERMAL SHUTDOWN
Tshutdown Thermal shutdown threshold 160 °C
Thysteresis Thermal shutdown threshold hysteresis 15 °C
(1) To select EasyScale mode, the CTRL pin has to be low for more than tes_det during tes_win.
(2) Acknowledge condition active 0, this condition is only applied in case the RFA bit is set. Open-drain output, line must be pulled high by the host with resistor load.