ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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BTS441T
Smart Highside Power Switch One Channel: 20mΩ
Product Summary
| On-state Resistance | RON | 20mΩ |
| Operating Voltage | Vbb(on) | 4.75 ... 41V |
| Nominal load current | IL(ISO) | 21A |
| Current limitation | IL(lim) | 65A |
Package
General Description
• N channel vertical power FET with charge pump, ground referenced CMOS compatible input, monolithically integrated in Smart SIPMOS® technology.
• Providing embedded protective functions.
Application
• µC compatible power switch for 5V, 12 V and 24 V DC applications
• All types of resistive, inductive and capacitve loads
• Most suitable for loads with high inrush currents, so as lamps
• Replaces electromechanical relays, fuses and discrete circuits
Basic Funktions
• Very low standby current
• Optimized static electromagnetic compatibility (EMC)
• µC and CMOS compatible
• Fast demagnetization of inductive loads
• Stable behaviour at undervoltage
Protection Functions
• Short circuit protection
• Current limitation
• Overload protection
• Thermal shutdown
• Overvoltage protection (including load dump) with external GND-resistor
• Reverse battery protection with external GND-resistor
• Loss of ground and loss of Vbb protection
• Electrostatic discharge (ESD) protection
Functional diagram
Pin configuration
Pin Definitions and Functions
| Pin | Symbol | Function |
| 1 | GND | Logic ground |
| 2 | IN | Input, activates the power switch in case of logical high signal |
| 3 | Vbb | Positive power supply voltage The tab is shorted to pin 3 |
| 4 | N.C. | Not connected |
| 5 | OUT | Output to the load |
| Tab | Vbb | Positive power supply voltage The tab is shorted to pin 3 |
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