SLVSA18A September 2009 – July 2015 TPS61161-Q1
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Applications and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DRV|6
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DRV|6
訂購(gòu)信息
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| VI | Supply voltage on VIN (2) | –0.3 | 20 | V |
| Voltage on CTRL(2) | –0.3 | 20 | V | |
| Voltage on FB and COMP(2) | –0.3 | 3 | V | |
| Voltage on SW(2) | –0.3 | 40 | V | |
| TJ | Operating junction temperature range | –40 | 150 | °C |
| Tstg | Storage temperature | –65 | 150 | °C |
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
6.2 ESD Ratings
| VALUE | UNIT | |||
|---|---|---|---|---|
| V(ESD) | Electrostatic discharge | Human-body model (HBM), per AEC Q100-002(1) | ±1000 | V |
| Charged-device model (CDM), per AEC Q100-011 | ±1000 | |||
(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
6.3 Recommended Operating Conditions
| MIN | NOM | MAX | UNIT | |||
|---|---|---|---|---|---|---|
| VI | Input voltage range, VIN | 2.7 | 18 | V | ||
| VO | Output voltage range | VIN | 38 | V | ||
| L | Inductor(1) | 10 | 22 | µH | ||
| fdim | PWM dimming frequency | 5 | 100 | kHz | ||
| Duty | PWM duty cycle resolution | At 10 kHz | 0.5% | |||
| At 30 kHz | 1.5% | |||||
| CIN | Input capacitor | 1 | µF | |||
| CO | Output capacitor(1) | 0.47 | 10 | µF | ||
| TA | Operating ambient temperature | –40 | 125 | °C | ||
(1) These values are recommended values that have been successfully tested in several applications. Other values may be acceptable in other applications but should be fully tested by the user.
6.4 Thermal Information
| THERMAL METRIC(1) | TPS61161-Q1 | UNIT | |
|---|---|---|---|
| DRV (SON) | |||
| 6 PINS | |||
| RθJA | Junction-to-ambient thermal resistance | 96.1 | °C/W |
| RθJC(top) | Junction-to-case (top) thermal resistance | 89 | °C/W |
| RθJB | Junction-to-board thermal resistance | 65.9 | °C/W |
| ψJT | Junction-to-top characterization parameter | 3.2 | °C/W |
| ψJB | Junction-to-board characterization parameter | 66.3 | °C/W |
| RθJC(bot) | Junction-to-case (bottom) thermal resistance | 40.8 | °C/W |
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.
6.5 Electrical Characteristics
VIN = 3.6 V, CTRL = VIN, TA = –40°C to 125°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 | 2.7 | 18 | V | ||
| IQ | Operating quiescent current into VIN | Device PWM switching no load | 1.8 | 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 hysteresis | 70 | mV | |||
| ENABLE AND REFERENCE CONTROL | ||||||
| V(CTRLh) | CTRL logic high voltage | VIN = 2.7 V to 18 V | 1.2 | V | ||
| V(CTRLl) | CTRL logic low voltage | VIN = 2.7 V to 18 V | 0.4 | V | ||
| R(CTRL) | CTRL pulldown resistor | 400 | 800 | 1600 | kΩ | |
| toff | CTRL pulse width to shutdown | CTRL high to low | 2.5 | ms | ||
| tes_det | EasyScale detection time(1) | CTRL pin low | 260 | µs | ||
| tes_delay | EasyScale detection delay | 100 | µs | |||
| tes_win | EasyScale 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 | 500 | 600 | 700 | kHz | |
| 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 | µmho | |
| 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 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 | 0.56 | 0.7 | 0.84 | A |
| ILIM_Start | Start-up current limit | D = Dmax | 0.4 | A | ||
| tHalf_LIM | Time step for half current limit | 5 | ms | |||
| Vovp | Open LED protection threshold | 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 | 213 | µs | |||
| EasyScale TIMING | ||||||
| tstart | Start time of program stream | 2 | µs | |||
| tEOS | End time of program stream | 2 | 360 | µs | ||
| tH_LB | High time low bit | Logic 0 | 2 | 180 | µs | |
| tL_LB | Low time low bit | Logic 0 | 2 × tH_LB | 360 | µs | |
| tH_HB | High time high bit | Logic 1 | 2 × tL_HB | 360 | µs | |
| tL_HB | Low time high bit | Logic 1 | 2 | 180 | µs | |
| VACKNL | Acknowledge output voltage low | Open drain, Rpullup =15 kΩ to VIN | 0.4 | V | ||
| tvalACKN | Acknowledge valid time | See (2) | 2 | µs | ||
| tACKN | Duration of acknowledge condition | See (2) | 512 | µs | ||
| THERMAL SHUTDOWN | ||||||
| Tshutdown | Thermal shutdown threshold | 160 | °C | |||
| Thysteresis | Thermal shutdown threshold hysteresis | 15 | °C | |||
(1) To select EasyScale mode, the CTRL pin must be low for more than tes_det during tes_win
(2) Acknowledge condition active 0, this condition will only be applied in case the RFA bit is set. Open-drain output, line needs to be pulled high by the host with resistor load.
6.6 Typical Characteristics
Table 1. Table of Graphs
| FIGURE | ||
|---|---|---|
| Efficiency TPS61161-Q1 | VIN = 3.6 V; 4, 6, 8, 10 LEDs; L = 22 µH | Figure 1 |
| Efficiency TPS61161-Q1 | Figure 2 | |
| Current limit | TA = 25°C | Figure 3 |
| Current limit | Figure 4 | |
| EasyScale step | Figure 5 | |
| PWM dimming linearity | VIN = 3.6 V; PWM Freq = 10 kHz and 40 kHz | Figure 5 |
| Output ripple at PWM dimming | 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; PWM Freq = 10 kHz | Figure 7 |
| Switching waveform | 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; L = 22 µH | Figure 8 |
| Start-up | 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; L =22 µH | Figure 9 |
| Open LED protection | 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; L = 22 µH | Figure 10 |
