PD-20569 09/98
16CTQ...L SERIES
SCHOTTKY RECTIFIER
16 Amp
TO-262
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 8 Apk, T
J
= 125°C
(per leg)
range
- 55 to 175
°C
Description/Features
The 16CTQ...L center tap Schottky rectifier series has been
optimized for low reverse leakage at high temperature. The
proprietary barrier technology allows for reliable operation up
to 175° C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
175° C T
J
operation
Center tap TO-262 package
Low forward voltage drop
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
16CTQ...L Units
16
80 to 100
850
0.58
A
V
A
V
BASE
COMMON
CATHODE
2
1
2
3
ANODE COMMON ANODE
CATHODE
1
2
Modified JEDEC outline TO-262
Dimensions in millimeters and inches
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1
16CTQ...L Series
PD-20569
09/98
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
80
100
V
RWM
Max. Working Peak Reverse Voltage (V)
16CTQ080L
16CTQ100L
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(Per Leg)
(Per Device)
16CTQ...L Units
8
16
850
275
7.50
0.50
A
mJ
A
A
Conditions
50% duty cycle @ T
C
= 148°C, rectangular wave form
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
5µs Sine or 3µs Rect. pulse
T
J
= 25 °C, I
AS
= 0.50 Amps, L = 60 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
16CTQ...L Units
0.72
0.88
0.58
0.69
0.55
7.0
0.415
11.07
500
8.0
10,000
V
V
V
V
mA
mA
V
m
Ω
Conditions
@ 8A
@ 16A
@ 8A
@ 16A
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
pF
nH
V/ µs
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
16CTQ...L Units
-55 to 175
-55 to 175
3.25
1.63
0.50
2 (0.07)
Min.
Max.
6 (5)
12 (10)
°C
°C
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
wt
T
Approximate Weight
Mounting Torque
Case Style
°C/W DCoperation
°C/W DC operation
* See Fig. 4
°C/W Mounting surface , smooth and greased
g (oz.)
Kg-cm
(Ibf-in)
Modified JEDEC
TO-262
2
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16CTQ...L Series
PD-20569
09/98
1000
100
T
J
= 175°C
Reverse Current - I
R
(mA)
10
1
0.1
75°C
0.01
0.001
0.0001
0
20
40
60
80
100
Reverse Voltage - V
R
(V)
T
J
= 175°C
T = 125°C
150°C
125°C
100°C
50°C
25°C
(A)
Instantaneous Forward Current - I
F
100
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
Junction Capacitance - C
T
(pF)
J
10
T
J
= 25°C
T
J
= 25°C
1
0.2 0.4 0.6 0.8
100
1
1.2 1.4 1.6 1.8
2
2.2
0
20
40
60
80
100
Forward Voltage Drop - V
FM
(V)
Reverse Voltage - V
R
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
10
Thermal Impedance Z
thJC
(°C/W)
D=
D=
D=
D=
D=
0.75
0.50
0.33
0.25
0.20
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
1
P
DM
0.1
t
Notes:
0.01
Single Pulse
(Thermal Resistance)
1
t2
1. Duty factor D = t 1 / t 2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.1
1
10
100
0.001
0. 00001
0.0001
0.001
0.01
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
16CTQ...L Series
PD-20569
09/98
180
Allowable Case Temperat ure - (°C)
7
Average Power Loss - (Watts)
6
5
4
RMS Limit
3
2
1
0
0
2
4
6
8
10
12
14
170
160
150
140
130
80% Rated V applied
R
120
110
see note (2)
Square wave (D = 0.50)
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
100
Average Forward Current - I
F(AV)
(A)
0
2
4
6
8
10
12
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
1000
Non-Repetitive Surge Current - I
FSM
(A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
At Any Rated Load Condition
And With Rated V
RRM
Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
Vd = 25 Volt
DUT
IRFP460
Rg = 25 ohm
+
CURRENT
MONITOR
Fig. 8 - Unclamped Inductive Test Circuit
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
4
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