TMI6263BH

TMI6263 Precision Power Distribution Switch FEATURES ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ GENERAL DESCRIPTION Integrated 60mΩ Power MOSFET 1μA Typical at Switch Off State Wide Input Voltage Range: 2.5V to 5.5V Fast Transient Response: 8μs 0.1ms Typical Rise Time Reverse Current Flow Blocking Automatic output discharge at shutdown Deglitched Open-Drain Over-Current Flag Output (TMI6263A, TMI6263D, TMI6263E) Thermal Shutdown Protection Hot Plug-In Application (Soft-Start) Two Enable polarities and four current levels TMI6263AH: 2.0A/Enable High TMI6263AL: 2.0A/Enable Low TMI6263CH: 1.5A/Enable High TMI6263DH: 2.0A/Enable High TMI6263EH: 2.5A/Enable High TMI6263BH: ADJ /Enable High SOT-23-5 / TSSOP-8 Package The TMI6263 is a cost-effective, single P-MOSFET load switch with ultra-low RDS(ON), optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. Input voltage from 2.5V to 5.5V, making it ideal for both 3V and 5V systems. A built-in P-channel MOSFET with true shutdown function to eliminate any reversed current flow across the switch. When output voltage is higher than input voltage, power switch is turned off. The TMI6263B offers a programmable current limit threshold between 200mA to2.4A via an external resistor. APPLICATIONS ⚫ ⚫ ⚫ ⚫ USB Bus/Self Powered Hubs Battery-Charger Circuits Personal Communication Devices Notebook Computers TYPICAL APPILCATION 100kΩ Vin 1μF IN nFLG EN OUT Vout 2A GND 0.1μF 22μF Load Figure 1. TMI6263AH/DH/EH Application Circuit with EN and nFLG TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 1 TMI6263 Vin EN IN Vout 5V/2A 1 μF OUT ILIM GND 3 kΩ 1% 0 . 1 μF 22μF Load Figure 2. TMI6263BH Application Circuit with Adjustable ILIMIT and EN. Vout 5V/ 1.5A Vin OUT IN 1 μF EN GND Load 0 . 1 μF 22μF Figure 3. TMI6263CH Application Circuit with EN. www.toll-semi.com 2 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic. TMI6263 V1.2 2018.11 TMI6263 ABSOLUTE MAXIMUM RATINGS (Note 1) Description Value Unit IN Input Voltage Range -0.3~7 V All other pins Voltage Range -0.3 to (VIN+0.3) V Junction Temperature -40~160 °C Storage Temperature Range -65~150 °C Junction-to-ambient Thermal Resistance (Note 2) 260(SOT23-5) °C/W Junction-to-case Thermal Resistance (Note 2) 160(TSSOP8) 120(SOT23-5) °C/W Lead TemperatureSoldering,10Sec 80 (TSSOP8) 260 °C PIN CONFIGURATION Package Type Pin Configurations OUT 1 TMI6263B SOT-23-5 TMI6263C GND 2 SOT-23-5 nFLG 3 4 EN OUT 1 5 IN GND 2 4 IN GND 1 8 OUT IN 2 7 OUT IN 3 6 OUT EN 4 5 nFLG TMI6263E TSSOP8 ILIM 3 5 IN EN 3 TMI6263D GND 2 Pin Configurations OUT 1 5 IN TMI6263A SOT-23-5 Package Type 4 EN Top Mark: TXXXXX (TXX: Device Code, XXX: Inside code) Part Number Package Top mark Quantity/ Reel TMI6263AH SOT-23-5 T17BXX 3000 TMI6263AL SOT-23-5 T19AXX 3000 TMI6263DH TSSOP-8 T17CXX 3000 TMI6263CH SOT-23-5 T17AXX 3000 TMI6263EH TSSOP-8 T17DXX 3000 TMI6263BH SOT-23-5 T18AXX 3000 TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 3 TMI6263 PIN FUNCTIONS TMI6263A SOT23-5 TMI6263B SOT23-5 TMI6263C SOT23-5 TMI6263D TMI6263E MSSOP8 Name 1 1 1 6,7,8 OUT Switch Output Pin. 2 2 2 1 GND Ground Pin 5 nFLG Open-Drain Fault Flag Output. 3 4 4 3 4 EN/nEN 5 5 4,5 2,3 IN 3 ILIM Function EN: High Enable. Not floating. nEN: Low Enable. Not floating. Power Input Pin Current limit Set Pin ESD RATINGS Items Description Value Unit VESD Human Body Model for all pins ±2000 V JEDEC specification JS-001 RECOMMENDED OPERATING CONDITIONS Items Description Min Max Unit Voltage Range IN 2.5 5.5 V TJ Operating Junction Temperature Range -40 125 °C www.toll-semi.com 4 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic. TMI6263 V1.2 2018.11 TMI6263 ELECTRICAL CHARACTERISTICS (Note3) (VIN=5V, CIN=1μF, COUT=1μF, TA = 25°C.) Symbol Parameter Conditions Min Typ 2.5 Max Unit 5.5 V VIN Input Voltage IQ Quiescent Supply Current VIN=5.0V, nEN=L, No load 30 60 μA ISHDN Shutdown Input Current VIN=5.0V, nEN=H, No load 0.1 1 μA IREV Reverse Leakage Current VOUT=5.0V, VIN=0V 2 5 μA VUVLO UVLO Threshold VIN rising 2 2.3 V VUVLO_HY UVLO Hysteresis VIN falling 100 VnEN_H nEN Rising Threshold VIN=5.0V VnEN_L nEN Falling Threshold VIN=5.0V nEN Input Current VEN=5.0V or 0V -0.5 RILIM=6.8kΩ（TMI6263B) 6263A/D mV nEN Section 1.5 V 0.8 V 5 10 μA 0.8 1 1.2 A 2.1 2.5 3 A 6263C 2 2.4 3 A 6263E 2 2.4 3 A Reverse Voltage Protection VOUT-VIN 5 20 50 mV TRISE Output Rise Time CL=1uF, RL=100ohm 0.1 ms TFALL Output Fall Time CL=1uF, RL=100ohm 0.3 ms TIOS Short Circuit Response time 12 μs RDIS OUT Discharge Resistance 10 Ω InEN OUT Section ILIM VREVERSE Limit Current FLG(Fault flag) section(TMI6263A,TMI6263D,TMI6263E) VOL Output low voltage IFLG Continuous FLG sink IFLG_LEAK TFLG IFLG=1mA Off-state leakage Fault flag deglitch time 180 mV 10 mA 1 μA 2.5 ms 60 mΩ Power Switch RDS_ON IOUT=1A Thermal Shutdown TOTP Thermal Shutdown Threshold 150 °C TOTP_HY Thermal Shutdown Hysteresis 20 °C Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula: TJ = TA + (PD) x (250°C/W). Note3: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization. TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 5 TMI6263 Figure 4. Short Circuits Response time Figure 5. test circuits Note: To exactly identify the short circuit characteristic of IC, avoid the test result interfered by parasitic inductor, output capacitor, and contact resistor. It is necessary to follow the recommendation as follows. Please, 1. Add 1000μF of capacitor between VIN and GND, and close to IC. 2. Remove output capacitor. 3. Shorter the short circuit device wire. 4. Measure output current (IOUT). www.toll-semi.com 6 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic. TMI6263 V1.2 2018.11 TMI6263 TYPICAL PERFORMANCE CHARACTERISTICS (Condition: VIN=5V, CIN=1μF, COUT=10μF, unless otherwise noted.) Output V-I Curve RDSON VS. Input Voltage 6 85 80 5 RDS(ON) (mΩ) Voltage(V) 75 4 3 2 70 65 60 55 50 1 TMI6263B 0 0 0.5 1 1.5 2 2.5 45 40 2.5 Current(A) Enable Response 3 3.5 4 4.5 Input Voltage (V) 5 5.5 Disable Response VEN=2V/div VEN=2V/div Vout=2V/div Vout=2V/div Time: 100μs/div Time: 100μs/div Input Power on Input Power off VIN=2V/div VIN=2V/div Vout=2V/div Vout=2V/div Time: 1ms/div Time: 1ms/div TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 7 TMI6263 TYPICAL PERFORMANCE CHARACTERISTICS (continued) nFLG Response during Over Load nFLG Response during Short Circuit VIN=5V/div VIN=5V/div nFLG=5V/div nFLG=5V/div Iout=2A/div Iout=2A/div Time: 2ms/div Time: 2ms/div FUNCTIONAL BLOCK DIAGRAM Output Reverse Voltage Protection VIN OUT EN PMOS Gate Control Delay UVLO nFLG OTP EN Bias Current Limit GND Figure 6. TMI6263AH Block Diagram APPLICATION INFORMATION The TMI6263 is current-limited, power distribution switches using P-channel MOSFETs for applications where short circuits or heavy capacitive loads will be encountered and provide up to 2.4A of continuous load current. Additional device shutdown features include over temperature protection and reverse-voltage protection. The driver controls the gate voltage of the power switch. The driver incorporates circuitry that controls the rise and fall times of the output voltage to limit large current and voltage surges and provides built-in soft-start functionality. The TMI6263 enters constant current mode when the load exceeds the current-limit threshold. www.toll-semi.com 8 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic. TMI6263 V1.2 2018.11 TMI6263 Input and Output IN (input) is the power supply connection to the logic circuitry and the drain of the output MOSFET. OUT(output) is the source of the output MOSFET. In a typical application, current flows through the switch from IN to OUT toward the load. OUT pin must be connected together to the load. Soft Start for Hot Plug-In Applications In order to eliminate the upstream voltage droop caused by the large inrush current during hot-plug events, the “soft-start” feature effectively isolates the power source from extremely large capacitive loads, satisfying the USB voltage droop requirements. Setting Current Limit (TMI6263B Only) The over-current threshold is user programmable via an external resistor. The TMI6263B use an internal regulation loop to provide a regulated voltage on the ILIM pin. The current-limit threshold is proportional to the current sourced out of ILIM. The recommended 1% resistor range for RILIM is 2.5kΩ ≤ RILIM ≤17kΩ to ensure stability of the internal regulation loop. Many applications require that the minimum current limit is above a certain current level or that the maximum current limit is below a certain current level, so it is important to consider the tolerance of the overcurrent threshold when selecting a value for RILIM. The following Figure 6 can be used to select the resulting type over-current threshold for a given external resistor value (RILIM). ILIMT=6800/RILIM TMI6263B ensure that maximum Current Limit threshold is below 3A, it is important to avoid current limiting upstream power supplies causing the input voltage bus to drop ILIMIT vs. RILIM 3 ILIMIT(A) 2.5 2 1.5 1 0.5 0 1 6 11 16 21 RILIM(kΩ) Figure 6. ILIMIT vs. RILIMIT FLG Function (TMI6263A TMI6263D TMI6263Eonly) The nFLG open-drain output is asserted (active low) when an over current condition is encountered after a 7ms deglitch timeout. The nFLG output remains asserted until the over-current condition is removed. Over temperature condition is also reported by nFLG open-drain output. In addition, nFLG is also asserted (active low) in output reverse-voltage condition when the output reverse-voltage condition is removed. TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 9 TMI6263 Thermal Shutdown The TMI6263 has internal over temperature protection to shut down the device when its junction temperature exceeds 150°C with over load current condition, then after the device is disabled, if the junction temperature drops 20°C hysteresis typically the device will resume and restart to work. The switch continues to cycle off and on until the over current fault is removed. EN/nEN, the Enable Input EN/nEN must be driven logic high or logic low for a clearly defined input. Floating the input may cause unpredictable operation, so please do not float EN/nEN input pin. Layout Consideration For best performance of the TMI6263, the following guidelines must be strictly followed. 1) Input and output capacitors should be placed close to the IC and connected to ground plane to reduce noise coupling. 2) The GND should be connected to a strong ground plane for heat sink. 3) Keep the main current traces as possible as short and wide. www.toll-semi.com 10 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic. TMI6263 V1.2 2018.11 TMI6263 PACKAGE INFORMATION SOT23-5 Unit: mm Symbol Dimensions In Millimeters Min Max L 2.82 3.02 B 1.50 C Dimensions In Millimeters Symbol Min Max E1 0.85 1.05 1.70 a 0.35 0.50 0.90 1.30 c 0.10 0.20 L1 2.60 3.00 b 0.35 0.55 E 1.80 2.00 F 0 0.15 Note: 1) All dimensions are in millimeters. 2) Package length does not include mold flash, protrusion or gate burr. 3) Package width does not include inter lead flash or protrusion. 4) Lead popularity (bottom of leads after forming) shall be 0.10 millimeters max. 5) Pin 1 is lower left pin when reading top mark from left to right. TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 11 TMI6263 PACKAGE INFORMATION TSSOP8 www.toll-semi.com 12 www.suntosemi.com TMI and SUNTO are the brands of TOLL microelectronic. TMI6263 V1.2 2018.11 TMI6263 TAPE AND REEL INFORMATION TAPE DIMENSIONS: REEL DIMENSIONS: Note: 1) All Dimensions are in Millimeter 2) Quantity of Units per Reel is 3000 3) MSL level is level 3. TMI and SUNTO are the brands of TOLL microelectronic . TMI6263 V1.2 2018.11 www.toll-semi.com www.suntosemi.com 13