Fairchild Semiconductor FDS6898AZ Datasheet

October 2001
G
FDS6898AZ
FDS6898AZ
Dual N-Channel Logic Level PWM Optimized PowerTrench MOSFET
General Description
These devices are well suited for low voltage and battery powered applications where low in-line power loss and fast switching are required.
D1
D
D1
D
D2
D
D2
D
S2
G1
S1
S
G2
S
S
=25oC unless otherwise noted
A
SO-8
SO-8
Pin 1
Absolute Maximum Ratings T
Features
9.4 A, 20 V R
Low gate charge (16 nC typical)
ESD protection diode (note 3)
High performance trench technology for extremely
low R
DS(ON)
High power and current handling capability
= 14 m @ VGS = 4.5 V
DS(ON)
R
= 18 m @ VGS = 2.5 V
DS(ON)
Q1
Q2
45 36 27
18
Symbol Parameter Ratings Units
V
DSS
V
GSS
I
D
P
D
TJ, T
STG
Drain-Source Voltage 20 V Gate-Source Voltage ± 12 V Drain Current – Continuous (Note 1a) 9.4 A
– Pulsed 38 Power Dissipation for Dual Operation 2 Power Dissipation for Single Operation (Note 1a) 1.6
(Note 1b) (Note 1c)
Operating and Storage Junction Temperature Range –55 to +150 °C
1
0.9
W
Thermal Characteristics
R
θJA
R
θJC
Thermal Resistance, Junction-to-Ambient (Note 1a) 78 °C/W Thermal Resistance, Junction-to-Case (Note 1) 40 °C/W
Package Marking and Ordering Information
Device Marking Device Reel Size Tape width Quantity
FDS6898AZ FDS6898AZ 13’’ 12mm 2500 units
2001 Fairchild Semiconductor Corporation
FDS6898AZ Rev C (W)
Electrical Characteristics T
FDS6898AZ
= 25°C unless otherwise noted
A
Symbol Parameter Test Conditions Min Typ Max Units Off Characteristics
BV
DSS
BVDSST
I
DSS
I
GSSF
I
GSSR
Drain–Source Breakdown Voltage VGS = 0 V, ID = 250 µA 20 V Breakdown Voltage Temperature
Coefficient
J
ID = 250 µA, Referenced to 25°C
21
Zero Gate Voltage Drain Current VDS = 16 V, VGS = 0 V 1 Gate–Body Leakage, Forward VGS = 12 V, VDS = 0 V 10
Gate–Body Leakage, Reverse VGS = –12 V, VDS = 0 V –10
mV/°C
On Characteristics (Note 2)
V
GS(th)
VGS(th)T
R
DS(on)
I
D(on)
g
FS
Gate Threshold Voltage VDS = VGS, ID = 250 µA 0.5 1 1.5 V Gate Threshold Voltage
Temperature Coefficient
J
Static Drain–Source On–Resistance
ID = 250 µA, Referenced to 25°C
VGS = 4.5 V, ID = 9.4 A VGS = 2.5 V, ID = 8.3 A VGS = 4.5 V, ID = 9.4 A,TJ = 125°C
–3.5
10 13
14 On–State Drain Current VGS = 4.5V, VDS = 5 V 19 A Forward Transconductance VDS = 5 V, ID = 9.4 A 47 S
mV/°C
14 18 21
Dynamic Characteristics
C
iss
C
oss
C
rss
Input Capacitance 1821 pF Output Capacitance 440 pF Reverse Transfer Capacitance
VDS = 10 V, V f = 1.0 MHz
GS
= 0 V,
208 pF
Switching Characteristics (Note 2)
t t t t Q Q Q
d(on)
r
d(off)
f
g
gs
gd
Turn–On Delay Time 10 20 ns Turn–On Rise Time 15 27 ns
VDD = 10 V, ID = 1 A, VGS = 4.5 V, R
GEN
= 6 Turn–Off Delay Time 34 55 ns Turn–Off Fall Time Total Gate Charge 16 23 nC Gate–Source Charge 3 nC
VDS = 10 V, ID = 9.4 A, VGS = 4.5 V
Gate–Drain Charge
16 29 ns
4 nC
Drain–Source Diode Characteristics and Maximum Ratings
I
S
V
SD
Notes:
1. R
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
θJA
the drain pins. R
Maximum Continuous Drain–Source Diode Forward Current 1.3 A Drain–Source Diode Forward
VGS = 0 V, IS = 1.3 A (Note 2) 0.7 1.2 V
Voltage
is guaranteed by design while R
θJC
is determined by the user's board design.
θCA
µA µA µA
m
a) 78°C/W when
mounted on a 0.5in pad of 2 oz copper
Scale 1 : 1 on letter size paper
2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%
3. The diode connected between the gate and source serves only as protection against ESD. No gate overvoltage rating is implied
2
b) 125°C/W when
mounted on a 0.02 in2 pad of 2 oz copper
c) 135°C/W when mounted on a
minimum mounting pad.
FDS6898AZ Rev C (W)
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