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PD-2.266 rev. A 12/97
19TQ015 SERIES
SCHOTTKY RECTIFIER 19 Amp
Major Ratings and Characteristics
Characteristics 19TQ015 Units
I
Rectangular 19 A
F(AV)
waveform
V
RRM
@ tp = 5 µs sine 700 A
I
FSM
VF@ 19 Apk, TJ = 75°C 0.32 V
TJrange - 55 to 100 °C
CASE STYLE AND DIMENSIONS
15 V
Description/Features
The 19TQ015 Schottky rectifier has been optimized for ultra
low forward voltage drop specifically for the OR-ing of parallel
power supplies. The proprietary barrier technology allows for
reliable operation up to 100° C junction temperature. Typical
applications are in parallel switching power supplies, converters, reverse battery protection, and redundant power
subsystems.
100° C T
Optimized for OR-ing applications
Ultra low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
operation
J
Conforms to JEDEC Outline TO - 220AC
Dimensions in millimeters and inches
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19TQ015
PD-2.266 rev. A 12/97
Voltage Ratings
Part number 19TQ015
VRMax. DC Reverse Voltage (V)
V
Max. Working Peak Reverse Voltage (V)
RWM
15
Absolute Maximum Ratings
Parameters 19TQ Units Conditions
I
Max. Average Forward Current 19 A 50% duty cycle @ TC = 80° C, rectangular wave form
F(AV)
* See Fig. 5
I
Max. Peak One Cycle Non-Repetitive 700 5µs Sine or 3µs Rect. pulse
FSM
Surge Current * See Fig. 7 3 30 10ms Sine or 6ms Rect. pulse
EASNon-Repetitive Avalanche Energy 6.75 mJ TJ = 25 °C, I
Repetitive Avalanche Current 1.50 A Current decaying linearly to zero in 1 µsec
I
AR
A
Frequency limited by T
= 1.50 Amps, L = 6 mH
AS
J
Following any rated
load condition and
with rated V
max. VA = 3 x VR typical
Electrical Specifications
Parameters 19TQ Units Conditions
VFMMax. Forward Voltage Drop (1) 0.36 V @ 19A
* See Fig. 1 0.46 V @ 38A
0.32 V @ 19A
0.43 V @ 38A
IRMMax. Reverse Leakage Current (1) 10.5 mA TJ = 25 °C
* See Fig. 2 522 mA T
465 mA T
285 mA T
C
Max. Junction Capacitance 2000 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 °C
T
Typical Series Inductance 8. 0 nH Measured lead to lead 5mm from package body
L
S
= 100 °C
J
= 100 °C VR = 12V
J
= 100 °C VR = 5V
J
dv/dt Max. Voltage Rate of Change 10,000 V/ µs
(Rated V
)
R
Thermal-Mechanical Specifications
TJ = 25 °C
= 75 °C
T
J
V
= rated V
R
(1) Pulse Width < 300µs, Duty Cycle < 2%
R
RRM
applied
Parameters 19TQ Units Conditions
TJMax. Junction Temperature Range -55 to 100 °C
Max. Storage Temperature Range -55 to 100 °C
T
stg
R
Max. Thermal Resistance Junction 1.50 °C/W DC operation * See Fig. 4
thJC
to Case
R
Typical Thermal Resistance, Case to 0.50 °C/W Mounting surface , smooth and greased
thCS
Heatsink
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Kg-cm
(Ibf-in)
Case Style TO-220AC JEDE C
2
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19TQ015
5
4
0
0
PD-2.266 rev. A 12/97
1000
100
F
10
Instantaneous Forward Current - I (A)
1
T = 100°C
J
T = 75°C
J
T = 25°C
J
1000
T = 100° C
J
100
R
10
1
R e ver se Cu rre nt - I (mA)
.1
05101
75°C
50°C
25°C
Reverse Voltage - V (V)
R
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
10000
T
1000
T = 25°C
J
.1
0.2.4.6.8 11.21.
Fo rward V oltage Drop - V (V )
Fig. 1 - Maximum Forward Voltage Drop Characteristics
10
D = 0.50
1
thJC
Therm a l Impedance - Z (°C /W )
D = 0.33
D = 0.25
D = 0.17
.1
D = 0.08
.01
Sin g le Puls e
(Th erm al Resistance)
.001
.00001 .0001 .001 .01 .1 1 10 10
Fig. 4 - Maximum Thermal Impedance Z
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Junction Capaci tance - C (pF)
100
0 5 10 15 20 25 3
FM
P
DM
Notes:
1. D uty facto r D = t / t
2. Pea k T = P x Z + T
t , Rectangular Pulse Duration (Seconds)
1
Characteristics
thJC
Reverse Vol tage - V (V)
R
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
t
1
t
2
1
2
JDM
thJC C
3
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19TQ015
8
PD-2.266 rev. A 12/97
105
19TQ015
100
95
90
85
Allowable Case Temperature - ( °C)
80
0 5 10 15 20 25 30
A v e r a g e F orw a rd C urre n t - I (A )
R ( DC) = 1. 50°C/W
thJC
DC
F(AV)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
FSM
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
10
D = 0.08
D = 0.17
D = 0.25
8
D = 0.33
D = 0.50
6
RMS Limit
4
2
Average Power Lo ss - (W atts)
0
0 4 8 121620242
Average Forward Current - I (A)
Fig. 6 - Forward Power Loss Characteristics
DC
F(AV)
Non-R epetitive Sur ge Current - I (A)
100
10 100 100 0 100 0 0
Square Wave Pulse Duration - t (microsec)
p
Fig. 7 - Maximum Non-Repetitive Surge Current
L
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
Vd = 25 Volt
+
CURRENT
MONITOR
DUT
IRFP46 0
Rg = 25 ohm
Fig. 8 - Unclamped Inductive Test Circuit
4
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