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| Part Number | NCR321UX | NCR321ZX | NCR421UX | NCR320UX | 
|---|---|---|---|---|
| Manufacturer | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | 
| Product Status | Active | Active | Active | Active | 
| Type | Linear | Linear | Linear | Linear | 
| Topology | Constant Current | Constant Current | Linear | Constant Current | 
| Internal Switch(s) | Yes | Yes | Yes | Yes | 
| Number of Outputs | 1 | 1 | 1 | 1 | 
| Voltage - Supply (Min) | - | - | - | - | 
| Voltage - Supply (Max) | 16V | 16V | 40V | 16V | 
| Voltage - Output | 16V | 16V | 40V | 16V | 
| Current - Output / Channel | 250mA | 250mA | 150mA | 250mA | 
| Frequency | - | - | - | - | 
| Dimming | PWM | PWM | PWM | PWM | 
| Applications | Automotive | Automotive | Automotive | Automotive | 
| Operating Temperature | -55°C ~ 150°C (TA) | -55°C ~ 150°C (TA) | -55°C ~ 150°C (TA) | -55°C ~ 150°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | SC-74, SOT-457 | TO-261-4, TO-261AA | SC-74, SOT-457 | SC-74, SOT-457 | 
| Supplier Device Package | 6-TSOP | SOT-223 | 6-TSOP | 6-TSOP |