The NTIP1 22 NP Transistor TIP122 is a Darlington pair NPN transistor. It functions like a normal NPN transistor, but since it has a Darlington pair inside it has a good collector current rating of about 5A and a gain of about 1000. It can also withstand about 100V across its collector- Emitter hence can be used to drive heavy loads. The Darlington pair inside this transistor is shown clearly as its internal circuit schematic below ,,
Although TIP has high collector current and current gain, it is fairly simple to control the device since it has an Emitter-Base voltage (VBE) of only 5V and base current of only 120mA. In the below circuit I have used the TIP122 to control a 48V motor which has a continuous current of about 3A. it has a good collector current rating of about 5A and a gain of about 1000. It can also withstand about 100V across its collector- Emitter hence can be used to drive heavy loads. The Darlington pair inside this transistor is shown clearly as its internal circuit schematic below ,
Features of TIP122 NPN Transistor
High DC Current Gain −
hFE = 2500 (Typ) @ IC
= 4.0 Adc
• Collector−Emitter Sustaining Voltage − @ 100 mAdc
VCEO(sus) = 60 Vdc (Min) − TIP120, TIP125
= 80 Vdc (Min) − TIP121, TIP126
= 100 Vdc (Min) − TIP122, TIP127
• Low Collector−Emitter Saturation Voltage −
VCE(sat) = 2.0 Vdc (Max) @ IC = 3.0 Adc
= 4.0 Vdc (Max) @ IC = 5.0 Adc
• Monolithic Construction with Built−In Base−Emitter Shunt Resistors
• Pb−Free Packages are Available*
- Darlington Medium-power NPN Transistor
- High DC Current Gain (hFE), typically 1000
- Continuous Collector current (IC) is 5A
- Collector-Emitter voltage (VCE) is 100 V
- Collector-Base voltage (VCB) is 100V
- Emitter Base Voltage (VBE) is 5V
- Base Current(IB) is 120mA
- Available in To-220 Package
- High Breakdown Voltage
Large Current Capacity
Isolated Package
Reviews
There are no reviews yet.