Features
■ Eight Darlingtons per package
■ Extended temperature range: -40 to 105 °C
■ Output current to 500 mA
■ Output voltage to 50 V
■ Integral suppression diodes
■ Versions for all popular logic families
■ Output can be paralleled
■ Inputs pinned opposite outputs to simplify
board layout
Description
The ULQ2801A-ULQ2804A each contain eight
Darlington transistors with common emitters and
integral suppression diodes for inductive loads.
Each Darlington features a peak load current
rating of 600 mA (500 mA continuous) and can
withstand at least 50 V in the off state. Outputs
may be paralleled for higher current capability.
Five versions are available to simplify interfacing
to standard logic families: the ULQ2801A is
ULQ2801 - ULQ2802
ULQ2803 - ULQ2804
Eight Darlington array
DIP-18
designed for general purpose applications with a
current limit resistor; the ULQ2802A has a 10.5
kΩ input resistor and zener for 14-25V PMOS; the
ULQ2803A has a 2.7 kΩ input resistor for 5 V TTL
and CMOS; the ULQ2804A has a 10.5 kΩ input
resistor for 6-15 V CMOS.
All types are supplied in a 18-lead plastic DIP with
a copper lead from and feature the convenient
input-opposite-output pinout to simplify board
layout.
Table 1. Device summary
Order codes Package
ULQ2801A DIP-18
ULQ2802A DIP-18
ULQ2803A DIP-18
ULQ2804A DIP-18
June 2008 Rev 2 1/13
www.st.com
13
Contents ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
Contents
1 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2/13
ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804 Diagrams
1 Diagrams
Figure 1. Schematic diagrams
For ULQ2801A (each driver for PMOS-CMOS) For ULQ2802A (each driver for 14-15 V PMOS)
For ULQ2804A (each driver for 6-15 V CMOS/PMOS)For ULQ2803A (each driver for 5 V, TTL/CMOS)
3/13
Pin configuration ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
2 Pin configuration
Figure 2. Pin connections (top view)
4/13
ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804 Maximum ratings
3 Maximum ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
O
V
I
I
C
I
B
Output voltage 50 V
Input voltage (for ULQ2802A - ULQ2803A - ULQ2804A) 30 V
Continuous collector current 500 mA
Continuous base current 25 mA
Power dissipation (one Darlington pair) 1
P
T
TOT
T
STG
A
Power dissipation (total package) 2.25
Operating ambient temperature range - 40 to 85 °C
Storage temperature range - 55 to 150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
R
thJA
Thermal resistance junction-ambient, Max. 55 °C/W
W
5/13
Electrical characteristics ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
4 Electrical characteristics
Table 4. Electrical characteristics
(T
= 25 °C unless otherwise specified).
A
Symbol Parameter Test condition Min. Typ. Max. Unit
V
= 50V, (Figure 7)50
CE
T
= 105°C, VCE= 50V (Figure 7)100
A
= 105°C for ULQ2802A, VCE= 50V,
T
I
CEX
V
CE(SAT)
I
I(ON)
I
I(OFF)
V
I(ON)
h
t
PLH
t
PHL
V
1. Guaranteed by design.
Output leakage current
Collector-emitter saturation
voltage (Figure 9)
Input current (Figure 6)
Input current (Figure 7)T
Input voltage (Figure 8)
DC forward current gain
FE
(Figure 5)
C
Input capacitance 15 25
I
Turn-on delay time 0.5 VI to 0.5V
Turn-off delay time 0.5 VI to 0.5V
Clamp diode leakage current
I
R
(Figure 9)
Clamp diode forward voltage
F
(Figure 10)
A
= 6V (Figure 8)
V
I
= 105°C for ULQ2804A, VCE= 50V,
T
A
VI = 1V (Figure 8)
= 100mA, IB = 250µA 0.9 1.1
I
C
= 200mA, IB= 350µA 1.1 1.3
C
= 350mA, IB= 500µA 1.3 1.6
I
C
for ULQ2802A, V
for ULQ2803A, V
for ULQ2804A, V
V
= 12V 1 1.45
I
= 105°C, IC = 500µA 50 65 µA
A
= 2V, for ULQ2802A
V
CE
= 300mA
I
C
= 17V 0.82 1.25
I
= 3.85V 0.93 1.35
I
= 5V 0.35 0.5
I
500
500
13
for ULQ2803A
IC = 200mA
= 250mA
I
C
IC = 300mA
2.4
2.7
3
for ULQ2804A
= 125mA
I
C
IC = 200mA
IC = 275mA
= 350mA
I
C
for ULQ2801A, VCE = 2V,
IC = 350mA
O
O
= 50V 50
V
R
= 105°C, VR = 50V 100
T
A
= 350mA 1.7 2 V
I
F
1000
0.25 1
0.25 1
5
6
7
8
(1)
(1)
(1)
µA
VI
mA
V
pF
µs
µs
µA
6/13
ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804 Test circuits
5 Test circuits
Figure 3. Output leakage current Figure 4. Output leakage current
Figure 5. Collector-emitter saturation voltage Figure 6. Input current (ON)
Figure 7. Input current (OFF) Figure 8. Input voltage
7/13
Test circuits ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
Figure 9. Clamp diode leakage current Figure 10. Clamp diode forward voltage
Figure 11. Collector current as a function of
saturation voltage
Figure 13. Allowable average power
dissipation as a function of T
A
Figure 12. Collector current as a function of
input current
Figure 14. Peak collector current as a function
of duty cycle
8/13
ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804 Test circuits
Figure 15. Peak collector current as a function
of duty
Figure 17. Input current as a function of input
voltage (for ULQ2804A)
Figure 16. Input current as a function of input
voltage (for ULQ2802A)
Figure 18. Input current as a function of input
voltage (for ULQ2803A)
9/13
Package mechanical data ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
6 Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
10/13
ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804 Package mechanical data
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
a1 0.254 0.010
B 1.39 1.65 0.055 0.065
b 0.46 0.018
b1 0.25 0.010
D 23.24 0.915
E 8.5 0.335
e 2.54 0.100
e3 20.32 0.800
F 7.1 0.280
I 3.93 0.155
L 3.3 0.130
Z 1.27 1.59 0.050 0.063
mm inch
OUTLINE AND
MECHANICAL DATA
DIP18
11/13
Revision history ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
7 Revision history
Table 5. Document revision history
Date Revision Changes
19-Sep-2003 1 First issue.
25-Jun-2008 2 Added: Table 1 on page 1.
12/13
ULQ2801 - ULQ2802 - ULQ2803 - ULQ2804
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