IR3312STRL International Rectifier, IR3312STRL Datasheet

Page 1

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 Description The IR 3312( Fully Protected 4 terminal high side ...

Page 2

IR3312(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. (T Ambient = 25 Symbol Parameter max Maximum input ...

Page 3

Protection Characteristics (unless otherwise specified), RIfb = 500 to 5kOhm. Symbol Parameter VIfb -Vin @ Isd Over-current shutdown threshold Tsd Over-temp. shutdown threshold Treset Protection reset time OV Over voltage shutdown (not latched) Isdf Fixed ...

Page 4

IR3312(S) Current Sense Characteristics Symbol Parameter Ratio I load / IIfb current ratio Ratio_TC Iload/Ifb variation over temperature offset Load current diagnostic offset Trst Ifb response time (low signal) Functional Block Diagram 4mA 70V ...

Page 5

Lead Assignments 3 (Vcc Lead - TO220 IR3312 Vcc-Vin Vcc-Vin max Vcc Vcc-Vin1 max Vcc-Vin (op) Vih Vil In Vhys IR3312 Iin Iin max Iin1,2 VIfb Iin(on) Ifb Out Ifb Figure 1 - Voltages ...

Page 6

IR3312(S) Vcc-Vin 90% Vcc-Vout DV/dt(off off Tf Figure 3 - Switching time definitions (turn-off) Vin I Load 24 us (typ.) Ifb Precise measurement Figure 5 - Current sense precision: Accurate measurement only when the power Mosfet is ...

Page 7

Vcc-Vin 12V 0 V Iout t < T reset OI shutdown Isd Tj Tjsd All curves are typical characteristics. Operation in hatched areas is not recommended. Tj=25 Vcc=14V (unless otherwise specified ...

Page 8

IR3312(S) 200% 180% 160% 140% 120% 100% 80% 60% 40% 20% 0% -50 - 100 125 150 Figure 10 -Normalized Rdson (%) Max. specified 3 2 Typical value Figure ...

Page 9

Figure 14 - Max. DC current (A) vs Temp. (°C) 100 Current path capability should be above those curves 10 ...

Page 10

IR3312(S) Case Outline - TO220 (5 lead) 10 IRGB 01-3042 01 WWW.IRF.COM ...

Page 11

Case Outline 5 Lead - D WWW.IRF.COM 2 PAK (SMD220) IR3312(S) 11 ...

Page 12

IR3312(S) Tape & Reel 5 Lead - D IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 This product has been designed and qualified for the Automotive [Q100] market PAK (SMD220) Data and specifications ...

Page 13

Note: For the most current drawings please refer to the IR website at: http://www.irf.com/package/ ...