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NTD4857N
THERMAL RESISTANCE MAXIMUM RATINGS
Parameter
Junction--to--Case (Drain)
Junction--to--TAB (Drain)
Junction--to--Ambient – Steady State (Note 1)
Junction--to--Ambient – Steady State (Note 2)
Symbol
R θ JC
R θ JC--TAB
R θ JA
R θ JA
Value
2.65
3.5
72
114.5
Unit
° C/W
1. Surface--mounted on FR4 board using 1 sq--in pad, 1 oz Cu.
2. Surface--mounted on FR4 board using the minimum recommended pad size.
ELECTRICAL CHARACTERISTICS (T J = 25 ° C unless otherwise specified)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
OFF CHARACTERISTICS
Drain--to--Source Breakdown Voltage
Drain--to--Source Breakdown Voltage
Temperature Coefficient
V (BR)DSS
V (BR)DSS /
T J
V GS = 0 V, I D = 250 m A
25
20
V
mV/ ° C
Zero Gate Voltage Drain Current
I DSS
V GS = 0 V,
V DS = 20 V
T J = 25 ° C
T J = 125 ° C
1.0
10
m A
Gate--to--Source Leakage Current
I GSS
V DS = 0 V, V GS = ± 20 V
± 100
nA
ON CHARACTERISTICS (Note 3)
Gate Threshold Voltage
Negative Threshold Temperature
Coefficient
V GS(TH)
V GS(TH) /T J
V GS = V DS , I D = 250 m A
1.45
5.3
2.5
V
mV/ ° C
Drain--to--Source On Resistance
R DS(on)
V GS = 10 V
V GS = 4.5 V
I D = 30 A
I D = 30 A
4.6
6.3
5.7
8.0
m Ω
Forward Transconductance
g FS
V DS = 1.5 V, I D = 15 A
77
S
CHARGES AND CAPACITANCES
Input Capacitance
C ISS
1960
Output Capacitance
Reverse Transfer Capacitance
Total Gate Charge
Threshold Gate Charge
Gate--to--Source Charge
Gate--to--Drain Charge
Total Gate Charge
C OSS
C RSS
Q G(TOT)
Q G(TH)
Q GS
Q GD
Q G(TOT)
V GS = 0 V, f = 1.0 MHz, V DS = 12 V
V GS = 4.5 V, V DS = 15 V, I D = 30 A
V GS = 10 V, V DS = 15 V, I D = 30 A
495
265
16
1.5
5.7
6.6
32
24
pF
nC
nC
SWITCHING CHARACTERISTICS (Note 4)
Turn--On Delay Time
t d(ON)
13.9
Rise Time
Turn--Off Delay Time
Fall Time
Turn--On Delay Time
Rise Time
Turn--Off Delay Time
Fall Time
t r
t d(OFF)
t f
t d(ON)
t r
t d(OFF)
t f
V GS = 4.5 V, V DS = 15 V,
I D = 15 A, R G = 3.0 Ω
V GS = 11.5 V, V DS = 15 V,
I D = 15 A, R G = 3.0 Ω
20.6
18.6
6.8
8.7
18.7
26
3.6
ns
ns
3. Pulse Test: pulse width ≤ 300 m s, duty cycle ≤ 2%.
4. Switching characteristics are independent of operating junction temperatures.
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