UNITPOWER UM4805

UM4805
Dual P-Ch 30V Fast Switching MOSFETs
General Description
Product Summery
The UM4805 is the highest performance trench
P-ch MOSFETs with extreme high cell density ,
which provide excellent RDSON and gate charge
for most of the synchronous buck converter
applications .
The UM4805 meet the RoHS and Green Product
requirement , 100% EAS guaranteed with full
function reliability approved.
BVDSS
RDSON
-30V
ID
18m
-8A
Applications
High Frequency Point-of-Load Synchronous
Buck Converter for MB/NB/UMPC/VGA
Networking DC-DC Power System
Features
Load Switch
SOP8 Pin Configuration
Advanced high cell density Trench technology
Super Low Gate Charge
Excellent CdV/dt effect decline
D2
D2
D1
D1
S2
G2
S1
G1
100% EAS Guaranteed
Green Device Available
Absolute Maximum Ratings
Absolute Maximum Ratings TA=25°C unless otherwise noted
Parameter
Symbol
VDS
Drain-Source Voltage
VGS
Gate-Source Voltage
TA=25°C
Continuous Drain
Current A
Pulsed Drain Current
Units
V
±25
V
-8
ID
IDM
TA=70°C
B
TA=25°C
Power Dissipation A
Maximum
-30
-40
2
PD
TA=70°C
Junction and Storage Temperature Range
A
-6.9
W
1.44
TJ, TSTG
°C
-55 to 150
Thermal Data
Parameter
Maximum Junction-to-Ambient A
Maximum Junction-to-Ambient A
Maximum Junction-to-Lead C
Symbol
t 10s
Steady-State
Steady-State
1
R
JA
R
JL
Typ
50
73
31
Max
62.5
110
40
Units
°C/W
°C/W
°C/W
UM4805
Dual P-Ch 30V Fast Switching MOSFETs
Electrical Characteristics (TJ=25
, unless otherwise noted)
Parameter
Symbol
STATIC PARAMETERS
BVDSS
Drain-Source Breakdown Voltage
Conditions
Min
ID=-250 A, VGS=0V
VDS=-24V, VGS=0V
-30
IDSS
Zero Gate Voltage Drain Current
IGSS
Gate-Body leakage current
VDS=0V, VGS=±25V
VGS(th)
Gate Threshold Voltage
ID(ON)
On state drain current
VDS=VGS ID=-250 A
VGS=-10V, VDS=-5V
VGS=-10V, ID=-8A
gFS
VSD
VGS=-4.5V, ID=-5A
Forward Transconductance
VDS=-5V, ID=-8A
Diode Forward Voltage
IS=-1A,VGS=0V
Maximum Body-Diode Continuous Current
Output Capacitance
Rg
Gate resistance
VGS=-20V, ID=-8A
16
-2.5
-3
16
19
20.5
15
33
25
18
21
-0.75
nA
V
A
m
m
m
-1
-2.6
S
V
A
VGS=0V, VDS=-15V, f=1MHz
2076
503
pF
pF
302
2
pF
VGS=0V, VDS=0V, f=1MHz
VGS=-10V, VDS=-15V, ID=-8A
39
8
nC
nC
11.4
12.7
nC
ns
7
25.2
ns
ns
Reverse Transfer Capacitance
SWITCHING PARAMETERS
Qg
Total Gate Charge
Qgs
Gate Source Charge
Qgd
Gate Drain Charge
A
-5
±100
-1.7
40
DYNAMIC PARAMETERS
Ciss
Input Capacitance
Coss
Crss
Units
-1
TJ=125°C
Static Drain-Source On-Resistance
Max
V
TJ=55°C
RDS(ON)
IS
Typ
tD(on)
tr
tD(off)
Turn-On DelayTime
Turn-On Rise Time
Turn-Off DelayTime
tf
trr
Turn-Off Fall Time
12
ns
IF=-8A, dI/dt=100A/ s
Body Diode Reverse Recovery Time
Body Diode Reverse Recovery Charge IF=-8A, dI/dt=100A/ s
32
26
ns
nC
Qrr
VGS=-10V, VDS=-15V, RL=1.8 ,
RGEN=3
A: The value of R JA is measured with the device mounted on 1in2 FR-4 board with 2oz. Copper, in a still air environment with TA =25°C. The
value in any a given application depends on the user's specific board design. The current rating is based on the t 10s thermal resistance
rating.
B: Repetitive rating, pulse width limited by junction temperature.
C. The R JA is the sum of the thermal impedence from junction to lead R JL and lead to ambient.
D. The static characteristics in Figures 1 to 6,12,14 are obtained using 80 s pulses, duty cycle 0.5% max.
2
E. These tests are performed with the device mounted on 1 in FR-4 board with 2oz. Copper, in a still air environment with TA=25°C. The
SOA curve provides a single pulse rating.
2
UM4805
Dual P-Ch 30V Fast Switching MOSFETs
Typical Characteristics
50
-10V
-8V
25
-6V
VDS=-5V
-5.5V
40
20
15
-ID(A)
-ID (A)
-5V
30
20
-4.5V
10
10
VGS=-4V
5
125°C
25°C
0
0
0
1
2
3
4
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
-VGS(Volts)
Figure 2: Transfer Characteristics
-VDS (Volts)
Fig 1: On-Region Characteristics
30
1.4
ID=-8A
VGS=-6V
Normalized On-Resistance
RDS(ON) (m )
25
20
15
VGS=-10V
10
5
1.3
VGS=-10V
1.2
1.1
VGS=-4.5V
1
0.9
0
0
5
10
15
20
0.8
25
0
-ID (A)
Figure 3: On-Resistance vs. Drain Current and Gate
Voltage
60
1.0E+01
50
1.0E+00
1.0E-01
-IS (A)
40
30
125°C
20
50
75
100
125
150
175
Temperature (°C)
Figure 4: On-Resistance vs. Junction Temperature
ID=-8A
RDS(ON) (m )
25
125°C
1.0E-02
1.0E-03
1.0E-04
25°C
25°C
10
1.0E-05
1.0E-06
0
2
4
6
8
0.0
10
0.2
0.4
0.6
0.8
1.0
-VSD (Volts)
Figure 6: Body-Diode Characteristics
-VGS (Volts)
Figure 5: On-Resistance vs. Gate-Source Voltage
3
1.2
UM4805
Dual P-Ch 30V Fast Switching MOSFETs
3000
10
VDS=-15V
ID=-8A
2500
Capacitance (pF)
-VGS (Volts)
8
6
4
Ciss
2000
1500
Coss
1000
2
Crss
500
0
0
5
10
15
20
25
30
35
0
40
0
5
-Qg (nC)
Figure 7: Gate-Charge Characteristics
20
25
30
40
TJ(Max)=150°C
TA=25°C
100 s
1ms
RDS(ON)
10.0 limited
TJ(Max)=150°C
TA=25°C
10 s
30
Power (W)
-ID (Amps)
15
-VDS (Volts)
Figure 8: Capacitance Characteristics
100.0
10ms
0.1s
1.0
10
1s
20
10
10s
DC
0
0.01
0.1
0.1
1
10
100
JA.R JA
10
100
1000
In descending order
D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse
1
PD
0.1
JA
Normalized Transient
Thermal Resistance
D=Ton/T
TJ,PK=TA+PDM.Z
R JA=62.5°C/W
1
Pulse Width (s)
Figure 10: Single Pulse Power Rating Junction-toAmbient (Note E)
-VDS (Volts)
Figure 9: Maximum Forward Biased Safe
Operating Area (Note E)
10
0.1
Z
Ton
T
Single Pulse
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
Pulse Width (s)
Figure 11: Normalized Maximum Transient Thermal Impedance
4
100
1000