IR3310S

Data Sheet No.PD60181 Rev.E IR3310(S) PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH Features • • • • • • • Load current feedback Programmable over current shutdown Active clamp E.S.D protection Input referenced to Vcc Over temperatue shutdown Reverse battery protection Product Summary Rds(on) Vcc.op. Current ratio Ishutdown Active clamp Load Dump Package 7mΩ max. 6 to 28V 8800 10 to 100A 35V 40V Description The IR 3310(S) is a Fully Protected 4 terminal high side switch. The input signal is referenced to Vcc. When the input voltage Vcc - Vin is higher than the specified Vih threshold, the output power MOSFET is turned-on. When Vcc - Vin is lower than the specified Vil threshold, the output MOSFET is turned-off. A sense current proportional to the current in the power Mosfet is sourced to the Ifb pin. Over-current shutdown occurs when Vfb - Vin > 4.5 V. The current shutdown threshold is adjusted by selecting the proper RIfb. Either over-current and over-temperature latches off the switch. The device is reset by pulling the input pin high. Other integrated protections ( ESD, reverse battery, active clamp) make the IR 3310(S) very rugged and suitable for the automotive environment. 5 Lead TO220 IR3310 5 Lead D2Pak (SMD220) IR3310S Typical Connection VCC IN Ifb 10 k IR 3310 OUT LOAD Battery RIfb on off System Ground Power Ground www.irf.com 1 IR3310(S) Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are referenced to Vcc lead. (TAmbient = 25oC unless otherwise specified). Symbol Vcc - Vin max Vcc-VIfb max Vcc - Vout max. Ids cont. Ids1 cont Ids pulsed ESD 1 ESD 2 Pd TJ max. Min RIfb Ifb max Parameter Maximum input voltage Maximum Ifb voltage Maximum output voltage Diode max. permanent current (Rth = 60 °C/W) (1) Diode max. permanent current (Rth = 5 °C/W) (1) Diode max. pulsed current (1) Electrostatic discharge (human body model)C=100pF, R=1500Ω Electrostatic discharge (machine model)C=200pF, R=0Ω, L=10µH Power dissipation ( Rth = 60 °C/W ) Max. storage and junction temperature Minimum resistor on the Ifb pin Max. Ifb current Min. -16 -0.3 -0.3 — — — — — — -40 0.3 -20 Max. 50 50 33 2.8 35 100 4 0.5 2 150 — +20 Units V A kV W °C kΩ mA Thermal Characteristics Symbol R th R th R th R th 1 2 1 2 Parameter Thermal resistance junction to Ambient - TO220 Thermal resistance junction to case - TO220 Thermal resistance with standard footprint - SMD220 Thermal resistance with 1" square footprint - SMD220 Thermal resistance junction to case - SMD220 Typ. 60 0.7 60 35 0.7 Max. — — — — — Units °C/W R th 3 Recommended Operating Conditions These values are given for a quick design. For operation outside these conditions, please consult the application notes. Symbol Vcc Vcc -Vin -VIfb Parameter Continuous input voltage Continuous Ifb pin voltage Supply to power ground voltage Continuous output current ( Rth/amb < 5 °C/W, Tj = 125°C) Continuous output current ( Rth/amb < 60 °C/W, Tj = 125°C) Ifb resistor to program Isd and scale (2 & 3) Minimum turn-on pulse width Maximum operating frequency Maximum frequency with protections activated Min. 6 0.3 6 — — 0.5 1 — — Max. 28 28 28 23 6.5 3.5 — 500 200 Units V Vcc Iout Iout 85°C amb. RIfb Pulse min. Fmax Fmax Prot. A kΩ ms Hz 1) Limited by junction temperature. Pulsed current is also limited by wiring 2) 5000 Ohm or leaving Ifb open will shutdown the part. No current will flow in the load. 2 WWW.IRF.COM IR3310(S) Protection Characteristics Symbol VIfb -Vin @ Isd Tsd Treset OV Isdf Isd_1k Min.Pulse WAIT Tj = 25oC (unless otherwise specified), RIfb = 500 to 5kOhm. Parameter Over-current shutdown threshold Over-temp. shutdown threshold Protection reset time Over voltage shutdown (not latched) Fixed over current shutdown Adjustable over current shutdown 1K Minimum pulse width (no WAIT state) WAIT function timer Min. 4 — — 33 100 30 200 0.5 4 Typ. 4.5 165 50 36 120 40 500 1.2 6.2 Max. Units Test Conditions 5.4 — 300 41 140 50 1200 3.5 10 V °C µS V A A µs ms mΩ see Fig. 7 see Fig. 7 VIfb 100 A Tj > 165 °C reverse battery protection timer 300 us + IN 4 Ifb OUT WWW.IRF.COM IR3310(S) Lead Assignments 3 (Vcc) 3 (Vcc) 1 - In 2 - Ifb 3 - Vcc (tab) 4 - NC 5 - Out 12345 12345 5 Lead - TO220 IR3310 Part Number 5 Lead - D2PAK (SMD220) IR3310S Vcc-Vin Vcc-Vin max Vcc-Vin1 max Vcc-Vin (op) Vih Vil Vhys Iin Iin Vcc-Vin Vcc In IR3310 Vcc-Vout Vcc-Vout max Vclamp1 Vclamp2 Vcc 90% max Iin1,2 Iin(on) VIfb Ifb Ifb Out Iout Iout max -Ids cont. -Ids pulsed Iout 85°C Isd Iq Vcc-Vout 5V 10 % DV/dt(on) Td on Tr1 Tr2 Figure 1 - Voltages and currents definitions Figure 2 - Switching time definitions (turn-on) WWW.IRF.COM 5 IR3310(S) V cc Vcc-Vin Vin 90% Vcc-Vout 10 % I ds DV/dt(off) V ds clamp T c lamp V cc Td off Tf Vout Vcc-Vclamp ( see Design tip to evaluate power dissipation ) Figure 3 - Switching time definitions (turn-off) Figure 4 - Active clamp waveforms Vin clamp Vcc-Vin 12V 0V I Load T minpulse T minpulse Wait 0V 40 us (typ.) Ifb Iout Precise measurement Figure 5 - Current sense precision: Accurate measurement only when the power Mosfet is fully ON Figure 6 - Minimum pulse & WAIT function 6 WWW.IRF.COM IR3310(S) Vcc-Vin 12V 0V Iout Isd t < T reset t > T reset t < T reset t > T reset OI shutdown wait wait Tj OT shutdown Tjsd Figure 7 - Protection Timing Diagrams All curves are typical characteristics. Operation in hatched areas is not recommended. Tj=250C, RIfb=500 Ohm, Vcc=14V (unless otherwise specified). 10 8 6 4 2 0 0 10 20 30 40 50 60 70 10 8 6 4 2 0 0 5 10 15 20 25 30 Figure 9- Rdson (mΩ) vs Vcc-Vin (V) Figure 8 - Icc (mA) vs Vcc-Vin (V) WWW.IRF.COM 7 IR3310(S) 200% 180% 160% 140% 120% 100% 80% 60% 40% 20% 0% -50 -25 0 25 50 75 100 125 150 6 5 4 3 2 1 0 -50 Vifb-Vin Vih Vil -25 0 25 50 75 100 125 150 Figure 10 -Normalized Rdson (%) vs Tj (oC) Figure 11 - Vih, Vil & Vifb -Vin (V) vs Tj (oC) 18 16 14 12 10 8 6 4 2 0 0 20 40 60 80 100 Typical value Max. specified 100 Isd min 3s isd typ Isd max 3s 10 100 1000 10000 Figure 12 - Error (+/-A) vs Iload (A) Figure 13 - Isd (A) vs RIfb (Ohm) 8 WWW.IRF.COM IR3310(S) 60 50 40 30 20 10 0 -50 0 50 1 00 5°C/W 15°C/W 35°C/W 1'' foot 60°C/W std fooprint 1 0 100 150 200 1 0. 001 absolute maximal single pulse 10 Hz rth=60°C/W dT=25°C 100Hz rth=60°C/W dT=25°C 1kHz rth=60°C/W dT=25°C 0. 01 0. 1 1 Figure 14 - Max. DC current (A) vs Temp. (°C) Figure 15 - Max. I (A) vs inductance (mH) 1000 100 T=25°C free air/ std. footprint T=100°C free air/ std. footprint 60°C/W free air 5°C/W Current path capability should be above those curves 10 100 1 Load characteristic should be underneath those curves 10 1E-05 0. 0001 0. 001 0. 01 0. 1 1 10 100 1000 0. 1 0. 0001 0. 001 0. 01 0. 1 1 10 100 1000 Figure 16 - I out (A) vs Protection resp. Time (s) Figure 17 - Rth (oC/W) vs Time (s) WWW.IRF.COM 9 IR3310(S) Case Outline - TO220 (5 lead) IRGB 01-3042 01 10 WWW.IRF.COM IR3310(S) Case Outline 5 Lead - D2PAK (SMD220) 115-0247 IRMX WWW.IRF.COM 11 IR3310(S) Tape & Reel 5 Lead - D2PAK (SMD220) 01-3071 00 / 01-3072 00 IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 Data and specifications subject to change without notice. This product has been designed and qualified for the Automotive [Q100] market. 7/24/2004 12 WWW.IRF.COM