ULN2803ADW手册_uln2803a引脚图及功能电压

ULN2803ADW

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SLRS049C − FEBRUARY1997 − REVISED AUGUST 2004

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D 500-mA Rated Collector Current (Single

Output)

D High-Voltage Outputs ...50 V

D Output Clamp Diodes

D Inputs Compatible With Various Types of

Logic

D Relay Driver Applications

D Compatible with ULN2800A Series

description/ordering information

The ULN2803A is a high-voltage, high-current Darlington

transistor array. The device consists of eight npn Darlington pairs

that feature high-voltage outputs with common-cathode clamp

diodes for switching inductive loads. The collector-current rating of

each Darlington pair is 500 mA. The Darlington pairs may be

connected in parallel for higher current capability.

Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line

drivers, and logic buffers. The ULN2803A has a 2.7-kΩ series base resistor for each Darlington pair for operation

directly with TTL or 5-V CMOS devices.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP (N) Tube of 20 ULN2803AN ULN2803AN

−40°C to 85°C

SOIC (DW)

Tube of 40 ULN2803ADW

ULN2803A

−40 C to 85 C

SOIC (DW)

Reel of 2000 ULN2003ADWR

ULN2803A

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

GND

COM

DW OR N PACKAGE

(TOP VIEW)

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SLRS049C − FEBRUARY1997 − REVISED AUGUST 2004

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings at 25°C free-air temperature (unless otherwise noted)

†

Collector-emitter voltage 50 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage (see Note 1) 30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous collector current 500 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp diode current 500 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total substrate-terminal current −2.5 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

(see Notes 2 and 3): DW package TBD°C/W. . . . . . . . . . . . . . . . . . . . . . . .

N package TBD°C/W. . . . . . . . . . . . . . . . . . . . . . . . . .

Operating virtual junction temperature, T

150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

−65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltage values, unless otherwise noted, are with respect to the emitter/substrate terminal GND.

2. Maximum power dissipation is a function of T

(max), θ

, and T

. The maximum allowable power dissipation at any allowable

ambient temperature is P

= (T

(max) − T

)/θ

. Operating at the absolute maximum T

of 150°C can affect reliability.

3. The package thermal impedance is calculated in accordance with JESD 51-7.

electrical characteristics at 25°C free-air temperature (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

CEX

Collector cutoff current

= 50 V,

See Figure 1

= 0,

50 µA

I(off)

Off-state input current

= 50 V,

= 70°C,

= 500 µA,

See Figure 2

50 65 µA

I(on)

Input current V

= 3.85 V, See Figure 3 0.93 1.35 mA

= 2 V,

= 200 mA 2.4

I(on)

On-state input voltage

= 2 V,

See Figure 4

= 250 mA 2.7

I(on)

On-state input voltage

See Figure 4

= 300 mA 3

= 250 µA,

See Figure 5

= 100 mA,

0.9 1.1

CE(sat

)

Collector-emitter saturation voltage

= 350 µA,

See Figure 5

= 200 mA,

1 1.3

= 500 µA,

See Figure 5

= 350 mA,

1.3 1.6

Clamp diode reverse current V

= 50 V, See Figure 6 50 µA

Clamp diode forward voltage I

= 350 mA, See Figure 7 1.7 2 V

Input capacitance V

= 0 V, f = 1 MHz 15 25 pF

switching characteristics at 25°C free-air temperature

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

PLH

Propagation delay time, low- to high-level output

= 50 V,

= 163

Ω

130

PHL

Propagation delay time, high- to low-level output

= 50 V,

= 15 pF,

= 163 Ω,

See Figure 8

High-level output voltage after switching

= 50 V,

See Figure 9

≈ 300 mA,

− 20 mV

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