MIC2003 MICREL | Alldatasheet

Document overview

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  • PDF pages: 16

Technical content

Features

  • 70m Ω typical on-resistance
  • 2.5V - 5.5V operating range
  • Pre-set current limit values of 0.5A, 0.8A and 1.2A
  • Kick start™
  • Thermal Protection
  • Under voltage lock-out
  • Low quiescent current

Applications

  • USB / IEEE 1394 Power Distribution
  • Desktop and Laptop PCs
  • Set top boxes
  • Game consoles
  • PDAs
  • Printers
  • Do cking stations
  • C hargers Typical Application

Figure 1. Typical Application Circuit

October 2005 2 M9999-102605 hbwhelp@micrel.com MIC2000 Family Members Part Number Pin Function Normal Limiting Kickstart I Limit I Adj. Enable CSLEW FAULT/ DLM* Load Discharge 2006 2016 Fixed -- ▲ ▲ -- ▲ -- 2009 2019 Adj. ▲ ▲ -- ▲ -- -- * Dynamic Load Management Adj = Adjustable current limit Fixed = Factory programmed current limit

Ordering Information

Part Number Marking(1) Current Limit Kickstart Pb-Free Package MIC2003-0.5YM5 FD05 0.5A MIC2003-0.8YM5 FD08 0.8A MIC2003-1.2YM5 FD12 1.2A SOT-23-5 MIC2003-0.5YML D05 0.5A MIC2003-0.8YML D08 0.8A MIC2003-1.2YML D12 1.2A No 2mmX2mm MLF MIC2013-0.5YM5 FL05 0.5A MIC2013-0.8YM5 FL08 0.8A MIC2013-1.2YM5 FL12 1.2A SOT-23-5 MIC2013-0.5YML L05 0.5A MIC2013-0.8YML L09 0.8A MIC2013-1.2YML L12 1.2A Yes Yes 2mmX2mm MLF Note: 1. Under-bar symbol ( _ ) may not be to scale or (408) 955-1690

October 2005 3 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 Pin Configuration NODAP EDISKCAB DNUORGSI VOUT 1 NIC NIC VIN GND NIC 6-Lead 2mmX2mm MLF (ML) Top View NIC GND NIC VOUT VIN 3 1 SOT 23-5 (M5) Top View Pin Description Pin Number SOT-23 Pin Number MLF Pin Name Type Description 1 6 VIN Input Supply input. This pin provides power to both the output switch and the MIC2003/2013’s internal control circuitry. 2 5 GND -- Ground. 3 4 NIC -- No internal connection. An electrical signal to this pin will have no effect on device operation. 4 3 NIC -- No internal connection. An electrical signal to this pin will have no effect on device operation. 2 NIC -- No internal connection. An electrical signal to this pin will have no effect on device operation. 5 1 VOUT Output Switch output. The load being driven by MIC2003/2013 is connected to this pin.

October 2005 4 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 Absolute Maximum Ratings(1) Operating Ratings(2) Package Thermal Resistance (θJA)

Electrical Characteristics

VIN = 5V, TAMBIENT = 25°C unless specified otherwise. Bold indicates –40°C to +85°C limits. Symbol Parameter Conditions Min Typ Max Units VIN Switch Input Voltage 2.5 5.5 V IIN Internal Supply Current Switch = OFF, ENABLE = 0V 1 5 µA IIN Internal Supply Current Switch = ON, IOUT = 0 ENABLE = 1.5V 80 300 µA ILEAK Output Leakage Current VIN = 5V, VOUT = 0 V, ENABLE = 0 12 100 µA 70 100 mΩ RDS(ON) Power Switch Resistance VIN = 5V, IOUT = 100 mA 125 mΩ ILIMIT_2nd Secondary current limit (Kickstart) MIC2013, VIN = 2.7V 2.2 4 6 A TJ increasing 145 OTTHRESHOLD Over-temperature Threshold TJ decreasing 135

October 2005 5 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 AC Characteristics Symbol Parameter Condition Min Typ Max Units tLIMIT Delay before current limiting Secondary current limit (MIC2013) 77 128 192 ms tRESET Delay before resetting Kickstart current limit delay, tLIMIT Out of current limit following a current limit. (MIC2013) 77 128 192 ms ESD Symbol Parameter Condition Min Typ Max Units VOUT and GND ± 4 kV VESD_HB Electro Static Discharge Voltage: Human Body Model All other pins ± 2 kV VESD_MCHN Electro Static Discharge Voltage; Machine Model All pins Machine Model ± 200 V Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 4. Specification for packaged product only. 5. Requires proper thermal mounting to achieve this performance.

October 2005 6 M9999-102605 hbwhelp@micrel.com Timing Diagrams ENABLE VOUT 50% 90% 10% tON_DLY tOFF_DLY 50% Switching Delay Times 90% 10% 90% 10% tFALLtRISE Rise and Fall Times 90% 10% tRISE VOUT Output Rise Time or (408) 955-1690

October 2005 7 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 Typical Characteristics 100 23 456 SUPPLY CURRENT (µA) VIN (V) Supply Current Output Enabled -40°C 85°C 25°C 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 234567 SUPPLY CURRENT (µA) VIN (V) Supply Current Output Disabled -40°C 85°C 25°C 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 -50 -30 -10 10 30 50 70 90 (µA) TEMPERATURE (°C) Switch Leakage Current - OFF 245.0 245.5 246.0 246.5 247.0 247.5 248.0 -50 -30 -10 10 30 50 70 90 THRESHOLD (mV) TEMPERATURE (°C) UVSD Threshold vs. Temperature 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 -50 -30 -10 103 05 0 709 0 ILIMIT (A) TEMPERATURE (°C) ILIMIT vs. Temperature (MIC20xx-1.2) VIN = 2.5V VIN = 5V VIN = 3V 0.2 0.4 0.6 0.8 1.0 1.2 1.4 -50 -30 -10 10 30 50 70 90 ILIMIT (A) TEMPERATURE (°C) ILIMIT vs. Temperature 1.2A 0.8A 0.5A 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 -50 -30 -10 103 05 0 709 0 ILIMIT (A) TEMPERATURE (°C) 2.5V ILIMIT vs. Temperature (MIC20xx - 0.8) Note: Please note that the 3 plots overlay each 0.55 0.57 0.59 0.61 0.63 0.65 0.67 0.69 0.71 0.73 0.75 -50 -30 -10 103 05 0 709 0 ILIMIT (A) TEMPERATURE (°C) 2.5V ILIMIT vs. Temperature (MIC20xx - 0.5) 100 22 .533 .5 4 4.555 .5 RON (mOhm) VIN (V) RON vs. Supply Voltage 100 120 -50 -30 -10 103 05 0 709 0 RON (mOhm) TEMPERATURE (°C) RON vs. Temperature 2.5V 3.3V

October 2005 8 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 Functional Characteristics VOUT (1V/div) IOUT (250mA/div) Time (ms) 50 100 150 200 250 300 350 400 450 500 550 VIN = 5.0V RLOAD CLOAD = 47µF Current Limit Response Thermal Shutdown VOUT (1V/div) IOUT (0.5A/div) Time (ms) 50 100 150 200 250 300 350 400 450 500 550 Kickstart Response Normal Load with Temporary High Load VOUT (1V/div) IOUT (0.5A/div) Time (ms) 50 100 150 200 250 300 350 400 450 500 550 Kickstart Response No Load to Short Circuit VOUT (1V/div) IOUT (0.5A/div) Time (ms) 50 100 150 200 250 300 350 400 450 500 550 Kickstart Response Normal Load with Temporary Short Circuit VOUT (1V/div) IOUT (200mA/div) Time (ms) 48 12 16 20 24 28 32 36 40 0µF 10µF 22µF47µF 100µF 220µF 470µF Inrush Current Response MIC20xx-0.5 VOUT (1V/div) IOUT (200mA/div) Time (ms) 24 6 81 0 12 14 VIN = 5.0V RLOAD CLOAD = 100nF Turn-On/Turn-Off

October 2005 9 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 VOUT (1V/div) VIN (1/div) Time (µs) 4 8 12 16 20 24 28 32 36 40 44 48 UVLO Decreasing VOUT (1V/div) VIN (1/div) Time (µs) 4 8 12 16 20 24 28 32 36 40 44 48 UVLO Increasing VOUT (1V/div) VIN (1/div) Time (µs) 20 40 60 80 100 120 140 160 180 200 UVSD

October 2005 10 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 Functional Diagram V FER rewoP TEF rednU egatloV rotceteD lamrehT rosneS etaRwelS lortnoC tnerruC TEFrorriM yrotcaF detsujda timiLtnerruC pooLlortnoc lortnoCetaG cigoLlortnoC remiTyaleDdna GND VOUT VIN Figure 2 MIC2003/2013 Block Diagram

current will flow from VOUT to VIN. the MIC2003/2013 goes into thermal shutdown. the appliance to stall or stutter. of Kickstart operation is shown below. Figure 3. Kickstart Operation secondary current limit, whichever is less. heating (effect exaggerated for emphasis). D) Current limiting initiated. FAULT/ goes LOW. F) Thermal shutdown followed by thermal cycling. G) Excessive lo ad rel eased, norm al loa d rem ains. MIC2013 drops out of current limiting. currents upon enabling the power MOSFET switch.

October 2005 12 M9999-102605 hbwhelp@micrel.com or (408) 955-1690 Thermal Shutdown Thermal shutdown is employed to protect MIC2003/2013 from damage should the die temperature exceed safe operating levels. Thermal shutdown shuts off the output MOSFET and asserts the FAULT/ output if the die temperature reaches 145°C. MIC2003/2013 will automatic ally resume operation when the die temperature cools down to 135°C. If resumed operation results in reheating of the die, another shutdown cycl e will occur and the MIC2003/2013 will continue cycling between ON and OFF states until the offending load has been removed. Depending on PCB layout, package type, ambient temperature, etc., hundreds of milliseconds may elapse from the incidence of a fault to the output MOSFET being shut off. This delay is due to thermal time constants within the system itself. In no event will the device be damaged due to thermal overload because die temperature is monitored continuously by on-chip circuitry.

appears a cross MIC2 003/2013’s po wer MOSFET. thermal limiting will be invoked. continuous currents of 1A or more. Figure 10. Die Temperature vs. IOUT

2 Vias

Figure 11. Pad for thermal mounting to PCB

October 2005 16 M9999-102605 hbwhelp@micrel.com or (408) 955-1690

Package Information

0.20 (0.0 08) 0.09 (0.0 04) 0.60 (0 .024) 0.10 (0 .004) 3.02 (0.119) 2.80 (0.110) 10° 3.00 (0 .118) 2.60 (0 .102) 1.75 (0.069) 1.50 (0.059) 0.95 (0. 037) REF 1.30 (0.051) 0.90 (0.035) 0.15 (0.0 06) 0.00 (0.0 00) DI ME NSIONS : MM ( INCH ) 0.50 (0 .020) 0.35 (0 .014) 1.90 (0. 075) RE F 5-Pin SOT-23 (M5)

6 Pin 2mmX2mm MLF (ML)

MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated.