HT2803A
8CH Darlington Sink Driver
The HT2803A&HT2804A are high-voltage, high-current
darlington drivers comprised of eight NPN darlington pairs.
All units feature integral clamp diodes for switching
indicative loads.
Application include relay, hammer, lamp and display (LED)
drivers.
Features
HT2803AN
HT2804AN
DIP-18
• Output current (single output)
500mA (Max)
• Output clamp diodes
• Inputs compatible with various types of logic
TYPE
HT2803AN/ARW
HT2804AN/ARW
INPUT BASE
RESISTOR
2.7kΩ
10.5kΩ
HT2803ARW
HT2804ARW
DESIGNATION
TTL, 5V CMOS
6~15V PMOS, CMOS
SOP-18
TA = -40 ~ +85 C
Pin Configuration
(top view)
Block Schematics
HT2803A
Note: The input and output parasitic diodes cannot be used as clamp diodes.
HT2804A
HT2803A
Maximum Ratings
Ta =25°C
Parameter
Limit Values
min.
max.
Symbol
Unit
VCE(SUS)
IOUT
–0.5
50
500
Input Voltage
VIN
– 0.5
30
Clamp Diode Reverse Voltage
VR
50
V
Clamp Diode Forward Current
IF
500
mA
Power Dissipation
PD
1.47
W
Output Sustaining Voltage
Output Current
HT2803AN
HT2803ADW
V
mA/ch
V
0.96
Operating Temperature
Topr
-40
85
C
Storage Temperature
Tstg
-55
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.
Recommended Operating Conditions
(Ta=-40~85°C)
Parameter
Symbol
Output Sustaining Voltage
Output Current
IOUT
DW
Input Voltage
Input Voltage
(Output On)
VIN
HT2803A
Unit
Min
Typ
Max
0
-
50
Tpw=25ms,Duty=10%,
8 Circuits
0
-
347
Tpw=25ms,Duty=50%,
8 Circuits
0
-
123
Tpw=25ms,Duty=10%,
8 Circuits
0
-
268
Tpw=25ms,Duty=50%,
8 Circuits
0
-
90
0
-
30
3.5
-
30
8
-
30
VCE(SUS)
N
Limit Value
Test Condition
mA/ch
V
V
VIN(ON)
HT2804A
V
Clamp Diode Reverse Voltage
VR
-
-
50
V
Clamp Diode Forward Current
IF
-
-
400
mA
-
-
0.52
-
-
0.4
Power Dissipation
N
DW
PD
W
HT2803A
Electrical Characteristics
Ta = 25°C
Parameter
Output
Leakage
Current
Test
Circuit
HT2803A
ICEX
1
VCE(sat)
2
IIN(ON)
2
HT2804A
Collector-Emitter
Saturation Voltage
Input
Current
Symbol
HT2803A
HT2804A
HT2803A
Input
Voltage
(Output On)
VIN(ON)
5
HT2804A
DC Current Transfer Ratio
Clamp Diode Reverse
Current
hFE
IR
Clamp Diode Forward
Voltage
Input Capacitance
VF
CIN
-
Turn-On Delay
Turn-Off Delay
tON
tOFF
8
8
Note : VR=VRMAX
2
6
7
Test Condition
Limit Values
Unit
Min
Typ
Max
VCE=50V
Ta=25°C
VCE=50V
Ta=85°C
VCE=50V
VIN=1V
IOUT=350mA,IIN=500um
IOUT=200mA,IIN=350um
IOUT=100mA,IIN=250um
-
1.3
1.1
0.9
50
100
500
1.6
1.3
1.1
VIN=3.85V
VIN=5V
VIN=12V
VCE=2V, IOUT=200mA
VCE=2V, IOUT=250mA
-
0.93
0.35
1.0
-
1.35
0.5
1.45
2.4
2.7
VCE=2V, IOUT=300mA
VCE=2V, IOUT=125mA
-
-
3.0
5.0
VCE=2V, IOUT=200mA
VCE=2V, IOUT=275mA
VCE=2V, IOUT=350mA
-
-
6.0
7.0
8.0
VCE=2V, IOUT=350mA
Ta=25°C (Note)
Ta=85°C (Note)
1000
-
-
50
100
uA
-
-
2.0
V
-
-
15
pF
-
0.1
0.21
-
us
us
IF=350mA
RL=125Ω, VOUT=50V
RL=125Ω, VOUT=50V
uA
V
mA
V
HT2803A
Test Circuit
HT2803A
Note 1 : Pulse Width 50us, Duty Cycle 10%
Output Impedance 50Ω, tr ≤ 5ns, tf ≤ 10ns
Note 2 : See below.
Input Condition
Type number
R1
VIH
HT2803A
0Ω
3V
HT2804A
0Ω
8V
Note 3 : CL includes probe and jig capacitance
Precautions for Using
Utmost care is necessary in the design of output line, COMMON and GND line since IC may be destroyed
due to short-circuit between outputs, air contaminaton fault, or fault by improper grounding.
HT2803A
HT2803AN
HT2804A
IIN vs VIN
IIN vs VIN
IOUT vs DUTY CYCLE
IOUT vs VCE (sat)
HT2803A
HT2803A
Package Dimensions
DIP-18
Unit: mm
HT2803A
SOP-18
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