FDS7779Z

October 2003
S
D
S
S
SO-8
D
D
D
G
45
36
27
18
FDS7779Z
FDS7779Z
30 Volt P-Channel PowerTrench
MOSFET
General Description
This P-Channel MOSFET has been designed
specifically to improve the overall efficiency of DC/DC
converters using either synchronous or conventional
switching PWM controllers, and battery chargers.
These MOSFETs feature faster switching and lower
gate charge than other MOSFETs with comparable
R
DS(ON)
specifications.
The result is a MOSFET that is easy and safer to drive
(even at very high frequencies), and DC/DC power
supply designs with higher overall efficiency.
Features
–16 A, –30 V. R
DS(ON)
= 7.2 m @ V
GS
= –10 V
R
DS(ON)
= 11.5 m @ V
GS
= – 4.5 V
ESD protection diode (note 3)
High performance trench technology for extremely
low R
DS(ON)
High power and current handling capability
Absolute Maximum Ratings T
A
=25
o
C unless otherwise noted
Symbol Parameter Ratings Units
V
DSS
Drain-Source Voltage –30 V
V
GSS
Gate-Source Voltage ±25 V
I
D
Drain Current – Continuous (Note 1a) –16 A
Pulsed –50
Power Dissipation for Single Operation (Note 1a) 2.5
(Note 1b)
1.2
P
D
(Note 1c)
1
W
T
J
, T
STG
Operating and Storage Junction Temperature Range –55 to +150
°C
Thermal Characteristics
R
θJA
Thermal Resistance, Junction-to-Ambient (Note 1a) 50
°C/W
R
θJC
Thermal Resistance, Junction-to-Case (Note 1) 25
Package Marking and Ordering Information
Device Marking Device Reel Size Tape width Quantity
FDS7779Z FDS7779Z 13’’ 12mm 2500 units
2003 Fairchild Semiconductor Corporation
FDS7779Z Rev C1 (W)
FDS7779Z Rev C1 (W)
Electrical Characteristics T
A
= 25°C unless otherwise noted
Symbol Parameter Test Conditions Min Typ Max Units
Off Characteristics
BV
DSS
Drain–Source Breakdown Voltage
V
GS
= 0 V, I
D
= –250 µA
–30 V
BVDSS
T
J
Breakdown Voltage Temperature
Coefficient
I
D
= –250 µA,Referenced to 25°C
–22
mV/°C
I
DSS
Zero Gate Voltage Drain Current V
DS
= –24 V, V
GS
= 0 V –1
µA
I
GSS
Gate–Body Leakage V
GS
= ±20 V, V
DS
= 0 V ±10
µA
On Characteristics (Note 2)
V
GS(th)
Gate Threshold Voltage
V
DS
= V
GS
, I
D
= –250 µA
–1 –1.5 –3 V
VGS(th)
T
J
Gate Threshold Voltage
Temperature Coefficient
I
D
= –250 µA,Referenced to 25°C
5
mV/°C
R
DS(on)
Static Drain–Source
On–Resistance
V
GS
= –10 V, I
D
= –16 A
V
GS
= –4.5 V, I
D
= –15 A
V
GS
= –10 V, I
D
=–16A, T
J
=125°C
6
9
8
7.2
11.5
11
m
I
D(on)
On–State Drain Current V
GS
= –4.5 V, V
DS
= –5 V –50 A
g
FS
Forward Transconductance V
DS
= –5 V, I
D
= –13 A 43 S
Dynamic Characteristics
C
iss
Input Capacitance 3800 pF
C
oss
Output Capacitance 980 pF
C
rss
Reverse Transfer Capacitance
V
DS
= –15 V, V
GS
= 0 V,
f = 1.0 MHz
490 pF
R
G
Gate Resistance V
GS
= 15 mV, f = 1.0 MHz 3
Switching Characteristics (Note 2)
t
d(on)
Turn–On Delay Time 20 36 ns
t
r
Turn–On Rise Time 9 18 ns
t
d(off)
Turn–Off Delay Time 100 160 ns
t
f
Turn–Off Fall Time
V
DD
= –15 V, I
D
= –1 A,
V
GS
= –10 V, R
GEN
= 6
55 88 ns
Q
g
Total Gate Charge 70 98 nC
Q
gs
Gate–Source Charge 10 nC
Q
gd
Gate–Drain Charge
V
DS
= –15 V, I
D
= –16 A,
V
GS
= –10 V
16 nC
Drain–Source Diode Characteristics and Maximum Ratings
I
S
Maximum Continuous Drain–Source Diode Forward Current –2.5 A
V
SD
Drain–Source Diode Forward
Voltage
V
GS
= 0 V, I
S
= –2.5 A (Note 2) –0.7 –1.2 V
t
RR
Reverse Recovery Time
39
ns
Q
RR
Reverse Recovery Charge
I
F
= –16 A,
d
iF
/d
t
= 100 A/µs (Note 2)
24 nC
FDS7779Z
Notes:
1. R
θJA
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. R
θJC
is guaranteed by design while R
θCA
is determined by the user's board design.
a) 50°C/W (10 sec)
62.5°C/W steady state
when mounted on a
1in
2
pad of 2 oz
copper
b) 105°C/W when
mounted on a .04 in
2
pad of 2 oz copper
c) 125°C/W when mounted on a
minimum pad.
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.
FDS7779Z Rev C1 (W)
0
10
20
30
40
50
00.511.52
-V
DS
, DRAIN TO SOURCE VOLTAGE (V)
-I
D
, DRAIN CURRENT (A)
V
GS
= -10V
-3.0V
-3.5V
-6.0V
-4.5V
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
0 15304560
-I
D
, DRAIN CURRENT (A)
R
DS(ON)
, NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
V
GS
= - 3.5V
-6.0V
-4.5V
-10V
-5.0V
-8.0V
-4.0V
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-50 -25 0 25 50 75 100 125 150 175
T
J
, JUNCTION TEMPERATURE (
o
C)
R
DS(ON)
, NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
I
D
= -16A
V
GS
= -10V
0.01
0.01
0.02
0.02
0.03
0.03
246810
-V
GS
, GATE TO SOURCE VOLTAGE (V)
R
DS(ON)
, ON-RESISTANCE (OHM)
I
D
= -8A
T
A
= 125
o
C
T
A
= 25
o
C
0
20
40
60
80
1.5 2 2.5 3 3.5 4
-V
GS
, GATE TO SOURCE VOLTAGE (V)
-I
D
, DRAIN CURRENT (A)
T
A
= -55
o
C
25
o
C
125
o
C
V
DS
= -5V
0.001
0.01
0.1
1
10
100
0 0.2 0.4 0.6 0.8 1 1.2
-V
SD
,
BODY DIODE FORWARD VOLTAGE (V)
-I
S
, REVERSE DRAIN CURRENT (A)
V
GS
= 0V
T
A
= 125
o
C
25
o
C
-55
o
C
FDS7779Z
Typical Characteristics
Figure 1. On-Region Characteristics. Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
igure 3. On-Resistance Variation with
Temperature.
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
Figure 5. Transfer Characteristics. Figure 6. Body Diode Forward Voltage Variation
with Source Current and Temperature.

FDS7779Z

Mfr. #:
Manufacturer:
ON Semiconductor / Fairchild
Description:
MOSFET 30V P-Channel PowerTrench
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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