IR3312 International Rectifier, IR3312 Datasheet

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IR3312

Manufacturer Part Number
IR3312
Description
IC SWITCH HI-SIDE 1CH TO-220-5
Manufacturer
International Rectifier
Type
High Sider
Datasheet

Specifications of IR3312

Input Type
Non-Inverting
Number Of Outputs
1
On-state Resistance
15 mOhm
Current - Output / Channel
14A
Current - Peak Output
100A
Voltage - Supply
6 V ~ 28 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Through Hole
Package / Case
TO-220-5 (Straight Leads)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*IR3312
PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH
Features
Typical Connection
Description
The IR 3312(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
Vifb - Vin > 4.5 V. The current shutdown threshold is adjusted
by selecting the proper RIfb. Either over-current and over-tem-
perature latches off the switch. The device is reset by pulling
the input pin high. Other integrated protections ( ESD, reverse
battery, active clamp ) make the IR3312(S) very rugged and
suitable for the automotive environment.
www.irf.com
Load current feedback
Programmable over current shutdown
Active clamp
E.S.D protection
Input referenced to Vcc
Over temperatue shutdown
Reverse battery protection
off
on
10 k
Ifb
IN
RIfb
System
Ground
IR 3312
VCC
OUT
Package
Product Summary
LOAD
5 Lead TO220
Power
Ground
R
V
Current ratio
I
Active clamp
shutdown
IR3312
Load Dump
cc.op.
ds(on)
Battery
Data Sheet No.PD60211 rev.D
IR3312(S)
6 to 28V
3 to 30A
D
2
20m
2800
Pak (SMD220)
35V
40V
IR3312S
5 Lead
1

Related parts for IR3312

IR3312 Summary of contents

Page 1

... RIfb. Either over-current and over-tem- perature latches off the switch. The device is reset by pulling the input pin high. Other integrated protections ( ESD, reverse battery, active clamp ) make the IR3312(S) very rugged and suitable for the automotive environment. Typical Connection ...

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 voltage V cc- V Ifb max Maximum Ifb voltage Vcc - Vout max. Maximum output voltage Ids cont. Diode max. permanent current (Rth = 60 ° ...

Page 3

... C, (unless otherwise specified). Min. Typ. Max. Units Test Conditions 0 0.75 — 1 0.5 — 1 IR3312(S) V °C see Fig. 7 see Fig VIfb<Vin A RIfb=1k s see Fig see Figs. 6 and 7 m Vcc-Vin=-12V, Iload=5A A Vcc-Vin=0, Vcc- Vout=12V Vcc-VIfb=12V mA Vcc-Vin=14V V A Vcc-Vin=0; Vcc-VIfb=0; Vcc-Vout=12V Iout=15A, Vcc-Vin=14V ...

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 Min. Typ. 2,400 2,800 -5 0 -0.45 0 — 5 charge driver ...

Page 5

... Figure 1 - Voltages and currents definitions WWW.IRF.COM Ifb 3 - Vcc (tab Out 5 Lead - D Part Number Vcc-Vin Vcc-Vout Vcc-Vout max Vclamp1 Vcc Vclamp2 90% Iout Iout max Vcc-Vout -Ids cont. -Ids pulsed Iout 85°C Isd Tr1 Figure 2 - Switching time definitions (turn-on) IR3312(S) 3 (Vcc PAK (SMD220) IR3312S DV/dt(on) Tr2 5 ...

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 fully ON 6 Vin Ids Vds clamp Vout ( see Design tip to evaluate power dissipation ) ...

Page 7

... Tjsd All curves are typical characteristics. Operation in hatched areas is not recommended. Tj=25 Vcc=14V (unless otherwise specified Figure 8 - Icc (mA) vs Vcc-Vin (V) WWW.IRF.COM t > T reset wait OT shutdown Figure 7 - Protection Timing Diagrams Figure 9- Rds Vcc-Vin (V) IR3312(S) t > T reset t < T reset wait 0 C, RIfb=500 Ohm ...

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 12 - Error (+/-A) vs Iload ( -50 - Figure 11 - Vih, Vil & Vifb -Vin ( C) 100 100 Figure 13 - Isd (A) vs RIfb (Ohm) Vifb-Vin Vih Vil ...

Page 9

... Figure out (A) vs Protection resp. Time (s) WWW.IRF.COM 100 10 1 150 200 0. 001 Figure 15 - Max. I (A) vs inductance (mH) 100 0001 10 100 1000 IR3312(S) single pulse 100Hz rth=60°C/W dT=25°C 1kHz rth=60°C/W dT=25° 60°C/W free air 5°C/W 0. 001 100 Figure 17 - Rth ( o C/W) vs Time (s) 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 subject to change without notice. 01-3071 00 / 01-3072 00 7/26/2004 ...

Page 13

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

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