Si6426DQ
October 2001
Si6426DQ
20V N-Channel PowerTrench MOSFET
General Description
This N-Channel MOSFET is a rugged gate version of Fairchild Semiconductor’s advanced PowerTrench process. It has been optimized for power management applications requiring a wide range of gate drive voltage ratings (2.5V to 8V).
Features
• 5.4 A, 20 V RDS(ON) = 35 mΩ @ VGS = 4.5 V RDS(ON) = 40 mΩ @ VGS = 2.5 V
• Extended VGSS range (±8V) for battery applications • High performance trench technology for extremely low RDS(ON) • Low profile TSSOP-8 package
Applications
• Battery protection • DC/DC conversion • Power management • Load switch
D S S D G S S D
Pin 1
5 6 7 8
4 3 2 1
TSSOP-8
Absolute Maximum Ratings
Symbol
VDSS VGSS ID PD TJ, TSTG Drain-Source Voltage Gate-Source Voltage Drain Current – Continuous
TA=25oC unless otherwise noted
Parameter
Ratings
20 ±8
(Note 1)
Units
V V A W °C
5.4 30 1.4 1.1 –55 to +150
– Pulsed Power Dissipation
(Note 1a) (Note 1b)
Operating and Storage Junction Temperature Range
Thermal Characteristics
RθJA Thermal Resistance, Junction-to-Ambient
(Note 1a) (Note 1b)
87 114
°C/W
Package Marking and Ordering Information
Device Marking 6426 Device Si6426DQ Reel Size 13’’ Tape width 16mm Quantity 3000 units
2001 Fairchild Semiconductor Corporation
Si6426DQ Rev B(W)
Si6426DQ
Electrical Characteristics
Symbol
BVDSS ∆BVDSS ∆TJ IDSS IGSSF IGSSR VGS(th) ∆VGS(th) ∆TJ RDS(on) ID(on) gFS Ciss Coss Crss td(on) tr td(off) tf trr Qg Qgs Qgd IS VSD
TA = 25°C unless otherwise noted
Parameter
Drain–Source Breakdown Voltage Breakdown Voltage Temperature Coefficient Zero Gate Voltage Drain Current Gate–Body Leakage, Forward Gate–Body Leakage, Reverse
(Note 2)
Test Conditions
VGS = 0 V, ID = 250 µA
Min
20
Typ
Max Units
V
Off Characteristics
ID = 250 µA, Referenced to 25°C VDS = 20 V, VGS = 8 V, VGS = –8 V, VDS = VGS, VGS = 0 V VDS = 0 V VDS = 0 V ID = 250 µA 0.6 0.9 –3 23 33 20 8 11 710 173 84 VDD = 6 V, VGS = 4.5 V, ID = 1 A, RGEN = 6 Ω 7 17 16 3 IF = 1.5 A, VGS = 0 V, dIF/dt = 100A/µs ID = 5.4 A, VDS = 6 V, VGS = 4.5 V 14 7 1.5 1.2 1.25
(Note 2)
14 1 5 100 –100 1.5
mV/°C µA nA nA V mV/°C 35 40 mΩ A S pF pF pF 14 31 29 6 100 10 ns ns ns ns ns nC nC nC A V
VDS = 20 V, VGS = 0 V, TJ=55°C
On Characteristics
Gate Threshold Voltage Gate Threshold Voltage Temperature Coefficient Static Drain–Source On–Resistance On–State Drain Current Forward Transconductance Input Capacitance Output Capacitance Reverse Transfer Capacitance
(Note 2)
ID = 250 µA, Referenced to 25°C VGS = 4.5 V, VGS = 2.5 V, VGS = 4.5 V, VGS = 2.5 V, VDS = 10 V, ID = 5.4 A ID = 4.9 A VDS = 5 V VDS = 5 V ID = 5.4 A
Dynamic Characteristics
VDS = 10 V, f = 1.0 MHz V GS = 0 V,
Switching Characteristics
Turn–On Delay Time Turn–On Rise Time Turn–Off Delay Time Turn–Off Fall Time
Reverse Recovery Time Total Gate Charge Gate–Source Charge Gate–Drain Charge
Drain–Source Diode Characteristics and Maximum Ratings
Maximum Continuous Drain–Source Diode Forward Current Drain–Source Diode Forward VGS = 0 V, IS = 1.25 A Voltage 0.7 1.2
Notes: 1. RθJA is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of the drain pins. RθJC is guaranteed by design while RθCA is determined by the user's board design.
a)
87°C/W when mounted on a 1in2 pad of 2 oz copper.
b)
114°C/W when mounted on a minimum pad of 2 oz copper.
c) 2.Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%
Scale 1 : 1 on letter size paper
Si6426DQ Rev B(W)
Si6426DQ
Typical Characteristics
30 25 ID, DRAIN CURRENT (A) 20 15
RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE
VGS = 4.5V 3.5V
2.6
3.0V 2.5V
2.4 2.2 2 1.8 1.6 1.4 1.2 1 0.8 2.5V 3.0V 3.5V VGS = 2.0V
2.0V 10 5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 VDS, DRAIN-SOURCE VOLTAGE (V)
4.0V
4.5V
0
5
10
15
20
25
30
ID, DRAIN CURRENT (A)
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with Drain Current and Gate Voltage.
0.11
1.6 RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE
RDS(ON), ON-RESISTANCE (OHM)
ID = 5.4A VGS = 4.5V 1.4
ID = 2.7A
0.09
1.2
0.07
TA = 125oC
0.05
1
TA = 25oC
0.03
0.8
0.6 -50 -25 0 25 50 75 100
o
125
150
0.01 1 2 3 4 5 VGS, GATE TO SOURCE VOLTAGE (V)
TJ, JUNCTION TEMPERATURE ( C)
Figure 3. On-Resistance Variation with Temperature.
15
Figure 4. On-Resistance Variation with Gate-to-Source Voltage.
100
TA = -55oC
25 C 125oC
o
IS, REVERSE DRAIN CURRENT (A)
VDS = 5V
ID, DRAIN CURRENT (A)
VGS = 0V
10 1 0.1 0.01 0.001 0.0001
10
TA = 125oC 25oC -55oC
5
0 0.5 1 1.5 2 2.5 VGS, GATE TO SOURCE VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1
1.2
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 5. Transfer Characteristics.
Figure 6. Body Diode Forward Voltage Variation with Source Current and Temperature.
Si6426DQ Rev B(W)
Si6426DQ
Typical Characteristics
5 VGS, GATE-SOURCE VOLTAGE (V)
1200 ID = 5.4A VDS = 6V 15V 10V CAPACITANCE (pF) 1000 CISS 800 600 400 200 0
0 2 4 Qg, GATE CHARGE (nC) 6 8
f = 1MHz VGS = 0 V
4
3
2
1
COSS CRSS
0
0
5
10
15
20
VDS, DRAIN TO SOURCE VOLTAGE (V)
Figure 7. Gate Charge Characteristics.
100 P(pk), PEAK TRANSIENT POWER (W) RDS(ON) LIMIT ID, DRAIN CURRENT (A) 10 100ms 1s DC 0.1 VGS = 4.5V SINGLE PULSE RθJA = 114oC/W TA = 25oC 0.01 0.1 1 10 100 VDS, DRAIN-SOURCE VOLTAGE (V) 10s 100µs 1ms 10ms 1 50
Figure 8. Capacitance Characteristics.
40
SINGLE PULSE RθJA = 114°C/W TA = 25°C
30
20
10
0 0.001
0.01
0.1
1 t1, TIME (sec)
10
100
1000
Figure 9. Maximum Safe Operating Area.
Figure 10. Single Pulse Maximum Power Dissipation.
r(t), NORMALIZED EFFECTIVE TRANSIENT THERMAL RESISTANCE
1 D = 0.5 0.2 0.1 0.1 0.05 0.02 0.01 0.01 SINGLE PULSE
RθJA(t) = r(t) * RθJA RθJA =114 °C/W P(pk) t1 t2 TJ - TA = P * RθJA(t) Duty Cycle, D = t1 / t2
0.001 0.0001
0.001
0.01
0.1 t1, TIME (sec)
1
10
100
1000
Figure 11. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1b. Transient thermal response will change depending on the circuit board design.
Si6426DQ Rev B(W)
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
ACEx™ Bottomless™ CoolFET™ CROSSVOLT ™ DenseTrench™ DOME™ EcoSPARK™ E2CMOSTM EnSignaTM FACT™ FACT Quiet Series™
DISCLAIMER
FAST ® FASTr™ FRFET™ GlobalOptoisolator™ GTO™ HiSeC™ ISOPLANAR™ LittleFET™ MicroFET™ MicroPak™ MICROWIRE™
OPTOLOGIC™ OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerTrench ® QFET™ QS™ QT Optoelectronics™ Quiet Series™ SILENT SWITCHER ®
SMART START™ STAR*POWER™ Stealth™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TinyLogic™ TruTranslation™ UHC™ UltraFET ®
VCX™
STAR*POWER is used under license
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Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. H4