View FDS6982S_123361.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

FDS6982S
March 2000 PRELIMINARY
FDS6982S
Dual Notebook Power Supply N-Channel PowerTrench SyncFetTM
General Description
The FDS6982S is designed to replace two single SO-8 MOSFETs and Schottky diode in synchronous DC:DC power supplies that provide various peripheral voltages for notebook computers and other battery powered electronic devices. FDS6982S contains two unique 30V, N-channel, logic level, PowerTrench MOSFETs designed to maximize power conversion efficiency. The high-side switch (Q1) is designed with specific emphasis on reducing switching losses while the lowside switch (Q2) is optimized to reduce conduction losses. Q2 also includes an integrated Schottky diode using Fairchild's monolithic SyncFET technology.
Features
* Q2: Optimized to minimize conduction losses Includes SyncFET Schottky body diode RDS(on) = 0.016 @ VGS = 10V RDS(on) = 0.021 @ VGS = 4.5V * Q1: Optimized for low switching losses Low Gate Charge ( 8.5 nC typical) RDS(on) = 0.028 @ VGS = 10V RDS(on) = 0.035 @ VGS = 4.5V
8.6A, 30V
6.3A, 30V
D1 D1 D2 D2 S1 G1
5 6 7
Q1
4 3 2
Q2
SO-8
S2
8
1
G2
Absolute Maximum Ratings
Symbol
VDSS VGSS ID PD Drain-Source Voltage Gate-Source Voltage Drain Current
TA = 25C unless otherwise noted
Parameter
Q2
30
(Note 1a)
Q1
30 20 6.3 20 2 1.6 1 0.9 -55 to +150
Units
V V A W
- Continuous - Pulsed Power Dissipation for Dual Operation Power Dissipation for Single Operation
20 8.6 30
(Note 1a) (Note 1b) (Note 1c)
TJ, TSTG
Operating and Storage Junction Temperature Range
C
Thermal Characteristics
RJA RJC Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Case
(Note 1a) (Note 1)
78 40
C/W C/W
Package Marking and Ordering Information
Device Marking FDS6982S Device FDS6982S Reel Size 13" Tape width 12mm Quantity 2500 units
1999 Fairchild Semiconductor Corporation
FDS6982S Rev B(W)
FDS6982S
Electrical Characteristics
Symbol
BVDSS BVDSS TJ IDSS IGSSF IGSSR
TA = 25C unless otherwise noted
Parameter
Drain-Source Breakdown Voltage Breakdown Voltage Temperature Coefficient Zero Gate Voltage Drain Current Gate-Body Leakage, Forward
Test Conditions
VGS = 0 V, ID = 1 mA VGS = 0 V, ID = 250 uA ID = 1 mA, Referenced to 25C ID = 250 A, Referenced to 25C VDS = 24 V, VGS = 0 V VGS = 20 V, VDS = 0 V
Type Min Typ Max Units
Q2 Q1 Q2 Q1 Q2 Q1 All All 30 30 20 26 1000 1 100 -100 V mV/C A nA nA
Off Characteristics
Gate-Body Leakage, Reverse VGS = -20 V, VDS = 0 V
(Note 2)
On Characteristics
VGS(th) VGS(th) TJ RDS(on)
Gate Threshold Voltage Gate Threshold Voltage Temperature Coefficient Static Drain-Source On-Resistance
ID(on) gFS
On-State Drain Current Forward Transconductance
VDS = VGS, ID = 1 mA VDS = VGS, ID = 250 A ID = 1 mA, Referenced to 25C ID = 250 A, Referenced to 25C VGS = 10 V, ID = 8.6 A VGS = 10 V, ID = 8.6 A, TJ = 125C VGS = 4.5 V, ID = 7.5 A VGS = 10 V, ID = 6.3 A VGS = 10 V, ID = 6.3 A, TJ = 125C VGS = 4.5 V, ID = 5.6 A VGS = 10 V, VDS = 5 V VDS = 5 V, ID = 8.6 A VDS = 5 V, ID = 6.3 A VDS = 10 V, VGS = 0 V, f = 1.0 MHz
Q2 Q1 Q2 Q1 Q2
1 1 -3.5 -5 0.013 0.020 0.017 0.021 0.038 0.028 30 20 38 18 2040 815 615 186 216 66
3 3
V mV/C
Q1
0.016 0.027 0.021 0.028 0.047 0.035
Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1
A S
Dynamic Characteristics
Ciss Coss Crss Input Capacitance Output Capacitance Reverse Transfer Capacitance pF pF pF
FDS6982S Rev B (W)
Electrical Characteristics
Symbol Parameter
(continued)
TA = 25C unless otherwise noted
Test Conditions
(Note 2)
Type Min
Typ
Max Units
Switching Characteristics
td(on) tr td(off) tf Qg Qgs Qgd Turn-On Delay Time Turn-On Rise Time Turn-Off Delay Time Turn-Off Fall Time Total Gate Charge Gate-Source Charge Gate-Drain Charge
VDD = 15 V, ID = 1 A, VGS = 10V, RGEN = 6
Q2 VDS = 15 V, ID = 11.5 A, VGS = 5 V Q1 VDS = 15 V, ID = 6.3 A,VGS = 5 V
Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q1 Q2 Q2 Q2 Q1
10 10 10 14 34 21 14 7 17.5 8.5 6.3 2.4 5.4 3.1
18 18 18 25 55 34 23 14 26 12
ns ns ns ns nC nC nC
Drain-Source Diode Characteristics and Maximum Ratings
IS tRR QRR VSD Maximum Continuous Drain-Source Diode Forward Current IF = 11.5A, diF/dt = 300 A/s Reverse Recovery Charge Drain-Source Diode Forward VGS = 0 V, IS = 3 A VGS = 0 V, IS = 6 A Voltage VGS = 0 V, IS = 1.3 A Reverse Recovery Time 3.0 1.3 20 19.7 0.42 0.56 0.70 .7 1.2 A ns nC V
(Note 3) (Note 2) (Note 2) (Note 2)
Notes: 1. RJA 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. RJC is guaranteed by design while RCA is determined by the user's board design.
a) 78/W when mounted on a 2 0.5 in pad of 2 oz copper
b) 125/W when 2 mounted on a .02 in pad of 2 oz copper
c) 135/W when mounted on a minimum pad.
Scale 1 : 1 on letter size paper 2. Pulse Test: Pulse Width < 300s, Duty Cycle < 2.0% 3. See "SyncFET Schottky body diode characteristics" below.
FDS6982S Rev B (W)
FDS6982S
Typical Characteristics: Q2
50 6.0V 4.5V 5.0V 30 3.5V 20 4.0V RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE VGS = 10V ID, DRAIN CURRENT (A) 40
2.5
2 VGS = 3.0V
1.5
3.5V 4.0V 4.5V 6.0V 10V
1
10
3.0V
0 0 0.5 1 1.5 2 2.5 VDS, DRAIN-SOURCE VOLTAGE (V)
0.5 0 10 20 30 40 50 ID, DRAIN CURRENT (A)
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with Drain Current and Gate Voltage.
0.04 RDS(ON), ON-RESISTANCE (OHM)
2 RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 -50 -25 0 25 50 75 100
o
ID = 11.5A VGS = 10V
ID = 11.5 A 0.035
0.03
0.025 TA = 125oC
0.02 0.015 TA = 25 C
o
125
150
0.01 2 4 6 8 10 VGS, GATE TO SOURCE VOLTAGE (V)
TJ, JUNCTION TEMPERATURE ( C)
Figure 3. On-Resistance Variation with Temperature.
50 VDS = 5V ID, DRAIN CURRENT (A) 40 TA = -55 C 25 C 100o 30
o o
Figure 4. On-Resistance Variation with Gate-to-Source Voltage.
10 VGS = 0V IS, REVERSE DRAIN CURRENT (A)
1
TA = 100oC 25oC -55 C
o
20
0.1
10
0 1 2 3 4 5 VGS, GATE TO SOURCE VOLTAGE (V)
0.01 0 0.2 0.4 0.6 0.8 VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 5. Transfer Characteristics.
Figure 6. Body Diode Forward Voltage Variation with Source Current and Temperature.
FDS6982S Rev B (W)
FDS6982S
Typical Characteristics: Q2
10 VGS, GATE-SOURCE VOLTAGE (V) ID = 11.5A 8 CAPACITANCE (pF) 15V 6 VDS = 5V 10V
3000 2500 CISS 2000 1500 1000 COSS 500 CRSS 0 0 10 20 Qg, GATE CHARGE (nC) 30 40 0 5 10 15 20 25 30 VDS, DRAIN TO SOURCE VOLTAGE (V) f = 1MHz VGS = 0 V
4
2
0
Figure 7. Gate Charge Characteristics.
100 P(pk), PEAK TRANSIENT POWER (W) RDS(ON) LIMIT 100s ID, DRAIN CURRENT (A) 10 1ms 10ms 100ms 1s 10s VGS = 10V SINGLE PULSE RJA = 135oC/W TA = 25oC 0.01 0.1 1 10 100 VDS, DRAIN-SOURCE VOLTAGE (V) DC 50
Figure 8. Capacitance Characteristics.
40
SINGLE PULSE RJA = 135C/W TA = 25C
30
1
20
0.1
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.
FDS6982S Rev B (W)
FDS6982S
Typical Characteristics Q1
40 VGS = 10V 6.0V 4.5V 4.0V
2 1.8 1.6 3.5V 1.4 1.2 VGS = 3.5V 4.0V 4.5V 5.0V 6.0V 1 2.5V 0.8 0 1 2 3 4 0 10 20 ID, DRAIN CURRENT (A) 30 40 10V 3.0V
30
20
10
0
VDS, DRAIN-SOURCE VOLTAGE (V)
Figure 11. On-Region Characteristics.
Figure 12. On-Resistance Variation with Drain Current and Gate Voltage.
0.08
1.6
ID = 6.3A VGS = 10V
ID = 3.5A
0.06
1.4
1.2
0.04
TA = 125 C
o
1
0.02
0.8
TA = 25 C
o
0.6 -50 -25 0 25 50 75 100
o
0
125
150
2
4
6
8
10
TJ, JUNCTION TEMPERATURE ( C)
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 13. On-Resistance Variation with Temperature.
40 VDS = 5V 30
Figure 14. On-Resistance Variation with Gate-to-Source Voltage.
100
TA = -55 C
o
VGS = 0V 25 C
o
125 C
o
10 1 0.1 0.01 TA = 125 C 25 C
o o
20
-55 C
o
10 0.001 0.0001 1 2 3 4 5 6 0 0.4 0.8 1.2 1.6
0
VGS, GATE TO SOURCE VOLTAGE (V)
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 15. Transfer Characteristics.
Figure 16. Body Diode Forward Voltage Variation with Source Current and Temperature.
FDS6982S Rev B (W)
FDS6982S
Typical Characteristics Q1
10 ID = 6.3A 8 15V VDS = 5V 10V
1200 1000 800 f = 1MHz VGS = 0 V
6 600 4 400 2 200 0 0 4 8 Qg, GATE CHARGE (nC) 12 16 0 5 10 15
CISS
COSS CRSS
0
20
25
30
VDS, DRAIN TO SOURCE VOLTAGE (V)
Figure 17. Gate Charge Characteristics.
100 RDS(ON) LIMIT 10 10ms 100ms 1s 10s DC VGS = 10V SINGLE PULSE RJA = 135 C/W TA = 25 C 0.01 0.1 1 10 100 0
o o
Figure 18. Capacitance Characteristics.
30 SINGLE PULSE
100s 1ms
25 20 15 10 5
RJA = 135 C/W TA = 25 C
o
o
1
0.1
0.01
0.1
1
10
100
1000
VDS, DRAIN-SOURCE VOLTAGE (V)
SINGLE PULSE TIME (SEC)
Figure 19. Maximum Safe Operating Area.
Figure 20. Single Pulse Maximum Power Dissipation.
1
r(t) , NO RMALIZED EFFECTIVE TRAN SIEN T T HERMAL RESISTANCE
0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 0.0001
D = 0.5 0.2 0.1 0.05 0.02 0.01 Single Pulse P(pk)
R JA (t) = r(t) * R JA R JA = 135C/W
t1
t2
TJ - T A = P * R JA (t) Duty Cycle, D = t1 /t2
0.001 0.01 0.1 t 1, TIME (s ec) 1 10 100 300
Figure 21. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1c. Transient thermal response will change depending on the circuit board design.
FDS6982S Rev B (W)
FDS6982S
Typical Characteristics (continued)
SyncFET Schottky Body Diode Characteristics
Fairchild's SyncFET process embeds a Schottky diode in parallel with PowerTrench MOSFET. This diode exhibits similar characteristics to a discrete external Schottky diode in parallel with a MOSFET. Figure 12 shows the reverse recovery characteristic of the FDS6982S. Schottky barrier diodes exhibit significant leakage at high temperature and high reverse voltage. This will increase the power in the device.
IDSS, REVERSE LEAKAGE CURRENT (A) 0.1
0.01
100oC
Current: 3A/div
0.001 25oC
0.0001 0 10 20 30 VDS, REVERSE VOLTAGE (V)
10nS/div
Figure 14. SyncFET body diode reverse leakage versus drain-source voltage and temperature.
Figure 12. FDS6982S SyncFET body diode reverse recovery characteristic.
For comparison purposes, Figure 13 shows the reverse recovery characteristics of the body diode of an equivalent size MOSFET produced without SyncFET (FDS6982).
Current: 3A/div
10nS/div
Figure 13. Non-SyncFET (FDS6982) body diode reverse recovery characteristic.
FDS6982S Rev B (W)
SO-8 Tape and Reel Data and Package Dimensions
SOIC(8lds) Packaging Configuration: Figure 1.0
Packaging Description:
EL ECT ROST AT IC SEN SIT IVE DEVICES
DO NO T SHI P OR STO RE N EAR ST RO NG EL ECT ROST AT IC EL ECT RO M AGN ETI C, M AG NET IC O R R ADIO ACT IVE FI ELD S
TNR D ATE PT NUMB ER PEEL STREN GTH MIN ___ __ ____ __ ___gms MAX ___ ___ ___ ___ _ gms
Antistatic Cover Tape
ESD Label
SOIC-8 parts are shipped in tape. The carrier tape is made from a dissipative (carbon filled) polycarbonate resin. The cover tape is a multilayer film (Heat Activated Adhesive in nature) primarily composed of polyester film, adhesive layer, sealant, and anti-static sprayed agent. These reeled parts in standard option are shipped with 2,500 units per 13" or 330cm diameter reel. The reels are dark blue in color and is made of polystyrene plastic (antistatic coated). Other option comes in 500 units per 7" or 177cm diameter reel. This and some other options are further described in the Packaging Information table. These full reels are individually barcode labeled and placed inside a standard intermediate box (illustrated in figure 1.0) made of recyclable corrugated brown paper. One box contains two reels maximum. And these boxes are placed inside a barcode labeled shipping box which comes in different sizes depending on the number of parts shipped.
Static Dissipative Embossed Carrier Tape
F63TNR Label Customized Label
F852 NDS 9959 F852 NDS 9959 F852 NDS 9959 F852 NDS 9959
SOIC (8lds) Packaging Information Packaging Option Packaging type Qty per Reel/Tube/Bag Reel Size Box Dimension (mm) Max qty per Box Weight per unit (gm) Weight per Reel (kg) Note/Comments Standard (no flow code) TNR 2,500 13" Dia 343x64x343 5,000 0.0774 0.6060 L86Z Rail/Tube 95 530x130x83 30,000 0.0774 F011 TNR 4,000 13" Dia 343x64x343 8,000 0.0774 0.9696 D84Z TNR 500 7" Dia 184x187x47 1,000 0.0774 0.1182
F852 NDS 9959
Pin 1
SOIC-8 Unit Orientation
343mm x 342mm x 64mm Standard Intermediate box ESD Label F63TNR Label sample
LOT: CBVK741B019 FSID: FDS9953A QTY: 2500 SPEC:
F63TNLabel F63TN Label ESD Label
(F63TNR)3
D/C1: D9842 D/C2:
QTY1: QTY2:
SPEC REV: CPN: N/F: F
SOIC(8lds) Tape Leader and Trailer Configuration: Figure 2.0
Carrier Tape Cover Tape
Components Trailer Tape 640mm minimum or 80 empty pockets Leader Tape 1680mm minimum or 210 empty pockets
July 1999, Rev. B
SO-8 Tape and Reel Data and Package Dimensions, continued
SOIC(8lds) Embossed Carrier Tape Configuration: Figure 3.0
T E1
P0
D0
F K0 Wc B0 E2 W
Tc A0 P1 D1
User Direction of Feed
Dimensions are in millimeter Pkg type SOIC(8lds) (12mm)
A0
6.50 +/-0.10
B0
5.30 +/-0.10
W
12.0 +/-0.3
D0
1.55 +/-0.05
D1
1.60 +/-0.10
E1
1.75 +/-0.10
E2
10.25 min
F
5.50 +/-0.05
P1
8.0 +/-0.1
P0
4.0 +/-0.1
K0
2.1 +/-0.10
T
0.450 +/0.150
Wc
9.2 +/-0.3
Tc
0.06 +/-0.02
Notes: A0, B0, and K0 dimensions are determined with respect to the EIA/Jedec RS-481 rotational and lateral movement requirements (see sketches A, B, and C).
20 deg maximum Typical component cavity center line
0.5mm maximum
B0 20 deg maximum component rotation
0.5mm maximum
Sketch A (Side or Front Sectional View)
Component Rotation
A0 Sketch B (Top View)
Typical component center line
Sketch C (Top View)
Component lateral movement
SOIC(8lds) Reel Configuration: Figure 4.0
Component Rotation
W1 Measured at Hub
Dim A Max
Dim A max
Dim N
See detail AA
7" Diameter Option
B Min Dim C See detail AA W3
Dim D min
13" Diameter Option
W2 max Measured at Hub DETAIL AA
Dimensions are in inches and millimeters
Tape Size
12mm
Reel Option
7" Dia
Dim A
7.00 177.8 13.00 330
Dim B
0.059 1.5 0.059 1.5
Dim C
512 +0.020/-0.008 13 +0.5/-0.2 512 +0.020/-0.008 13 +0.5/-0.2
Dim D
0.795 20.2 0.795 20.2
Dim N
2.165 55 7.00 178
Dim W1
0.488 +0.078/-0.000 12.4 +2/0 0.488 +0.078/-0.000 12.4 +2/0
Dim W2
0.724 18.4 0.724 18.4
Dim W3 (LSL-USL)
0.469 - 0.606 11.9 - 15.4 0.469 - 0.606 11.9 - 15.4
12mm
13" Dia
(c) 1998 Fairchild Semiconductor Corporation
July 1999, Rev. B
SO-8 Tape and Reel Data and Package Dimensions, continued
SOIC-8 (FS PKG Code S1)
1:1
Scale 1:1 on letter size paper
Dimensions shown below are in: inches [millimeters]
Part Weight per unit (gram): 0.0774
9
September 1998, Rev. A
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.
ACExTM CoolFETTM CROSSVOLTTM E2CMOSTM FACTTM FACT Quiet SeriesTM FAST(R) FASTrTM GTOTM HiSeCTM
DISCLAIMER
ISOPLANARTM MICROWIRETM POPTM PowerTrench QFETTM QSTM Quiet SeriesTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8
SyncFETTM TinyLogicTM UHCTM VCXTM
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
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. D

▲Up To Search▲

Price & Availability of FDS6982S

	To Download FDS6982S Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .