LED driver consisting of a resistor-equipped NPN transistor with two diodes on one chip in a medium power SOT223 (SC-73) plastic package.
Table 1.Product overview Type number - Package Nexperia - JEITA
NCR420Z
SOT223
SC-73
NCR421Z
Features and benefits
Stabilized output current of 10 mA without external resistor
Stabilized output current adjustable up to 150 mA when an external resistor is used
High current accuracy at supply voltage variation
Low voltage overhead of 1.4 V
Reduces component count and board space
High power dissipation of 1250 mW
Supply voltage up to 40 V
Digital PWM input up to 10 kHz frequency for NCR421Z
AEC-Q101 qualified
Applications
Constant LED driver
Generic constant current source
Automotive applications (for example: interior lighting, dash board, instrumentation, number plate light)
Increase stabilized output current by paralleling drivers
LED driver consisting of a resistor-equipped NPN transistor with two diodes on one chip in a medium power SOT223 (SC-73) plastic package.
Table 1.Product overview Type number - Package
Nexperia - JEITA
NCR420Z
SOT223
SC-73
NCR421Z
Features and benefits
- Stabilized output current of 10 mA without external resistor
- Stabilized output current adjustable up to 150 mA when an external resistor is used
- High current accuracy at supply voltage variation
- Low voltage overhead of 1.4 V
- Reduces component count and board space
- High power dissipation of 1250 mW
- Supply voltage up to 40 V
- Digital PWM input up to 10 kHz frequency for NCR421Z
- AEC-Q101 qualified
Applications
- Constant LED driver
- Generic constant current source
- Automotive applications (for example: interior lighting, dash board, instrumentation, number plate light)
- Increase stabilized output current by paralleling drivers
