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The IR6226 is a 5 terminal monolithic HIGH SIDE SWITCH with built in short circuit, over- temperature, ESD, inductive load turn off capability and diagnostic feedback.
The on-chip protection circuit goes into PWM mode, limiting the average current during short circuit if the drain current exceeds 5A. The protection circuit latches off the high side switch if the junction temperature exceeds 170!aC and latches on after the junc tion temperature falls by 10!aC. The drain to source voltage i actively clamped at 55V, improving its performance during turn off with inductive loads.
The on-chip charge pump high side driver stage is floating and ref- erenced to the source of the power MOSFET. Thus the logic to power ground isolation can be as high as 50V. This allows opera-tion with larger offset as well as controlling the switch during load energy recirculation or regeneration.
A diagnostic pin is provided for status feedback of short circuit, over temperature and open load detection.
IR6226 Maximum Ratings
Minimum
Maximum
Units
Test Conditions
Vcc
Supply Voltage
Permanent
-0.3
50
V
Pin 3 to Pin 1 (1), for 10 seconds
Reverse
-16
-
Voffset
Logic to Power Ground Offset
Vcc -50
Vcc +0.3
Vin
Input Voltage
-0.3
30
Iin
Input Current
-
10
mA
Vout
Output Voltage
Vcc -50
Vcc +0.3
V
Iout
Output Current
Self-limited
Vdg
Diagnostic Output Voltage
-0.3
30
V
Idg
Diagnostic Output Current
-
10
mA
Eav
Repetitive Avalanche Energy
-
200
mJ
I = 2A (2)
ESD1
Electrostatic Discharge(Human Body Model)
-
4000
V
C = 100 pF, R = 1500
ESD2
Electrostatic Discharge (Machine Model)
-
1000
V
C = 200 pF, R = 0
PD
Power Dissipation
-
28
W
Tcase=25
TJop
Operating Junction Temperature Range
-40
Self-limited
TStg
Storage Temperature Range
-40
175
TL
Lead Temperature (Soldering, 10 seconds)
-
300
IR6226 Features
·PWM Current Limit for Short Circuit Protection ·Over-Temperature Protection ·Active Output Negative Clamp ·Reverse Battery Protection ·Broken Ground Protection ·Short to VCC Protection ·Low Noise Charge Pump ·Sleep Mode Supply Current ·4kV ESD Protection On All Pins ·Logic Ground Isolated From Power Ground