Octal Darlington Transistor Array Slkor ULN2803AS for Load Control in TTL CMOS Digital Logic Systems
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Product Description
Product Overview
The ULN2803 is an octal high voltage, high current Darlington transistor array designed to interface low-level digital logic circuitry (TTL, CMOS, PMOS/NMOS) with higher current/voltage loads such as lamps, relays, and printer hammers. It features open-collector outputs and integrated free-wheeling clamp diodes for transient suppression. The ULN2803 is optimized for compatibility with standard TTL families.
Product Attributes
- Brand: slkormicro
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: UL (implied by ULN designation, but not explicitly stated)
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min | Typ | Max | Unit |
| Output leakage current | ICEX | VO=50V, TA=70C | 100 | µA | ||
| Output leakage current | ICEX | VO=50V, TA=25C | 50 | µA | ||
| Collector-Emitter saturation voltage | VCE(sat) | IC=350mA, IB=500µA | 1.1 | 1.6 | V | |
| Collector-Emitter saturation voltage | VCE(sat) | IC=200mA, IB=350µA | 0.95 | 1.3 | V | |
| Collector-Emitter saturation voltage | VCE(sat) | IC=100mA, IB=250µA | 0.85 | 1.1 | V | |
| Input current - on condition | II(on) | VI=3.85V | 1.1 | 1.35 | mA | |
| Input voltage - on condition | VI(on) | VCE=2.0V, IC=200mA | 1.70 | 2.4 | V | |
| Input voltage - on condition | VI(on) | VCE=2.0V, IC=250mA | 1.75 | 2.7 | V | |
| Input voltage - on condition | VI(on) | VCE=2.0V, IC=300mA | 1.80 | 3.0 | V | |
| Input current - off condition | II(off) | IC=500µA, TA=70C | 50 | 100 | µA | |
| Input capacitance | CI | 15 | 25 | pF | ||
| Turn-on delay time | ton | (50% EI to 50% EO) | 0.25 | 1.0 | µs | |
| Turn-off delay time | toff | (50% EI to 50% EO) | 0.25 | 1.0 | µs | |
| Clamp diode leakage current | IR | VR=50V, TA=25C | 50 | µA | ||
| Clamp diode leakage current | IR | VR=50V, TA=70C | 100 | µA | ||
| Clamp diode forward Voltage | VF | IF=350mA | 1.5 | 2.0 | V | |
| Output voltage | VO | 50 | V | |||
| Input voltage | VI | 30 | V | |||
| Collector current- continuous | IC | 500 | mA | |||
| Base current- continuous | IB | 25 | mA | |||
| Operating temperature | Topr | 0 | 70 | °C | ||
| Storage temperature | Tstg | -55 | +150 | °C | ||
| Junction temperature | TJ | 125 | °C |
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