NDS9945

Transistor Polarity : N-Channel
Gate-Source Breakdown Voltage : +/- 20 V
Mounting Style : SMD/SMT
Packaging : Reel
Maximum Operating Temperature : + 150 C
Configuration : Dual Dual Drain
Package / Case : SOIC-8 Narrow
Drain-Source Breakdown Voltage : 60 V
Continuous Drain Current : 3.5 A
Resistance Drain-Source RDS (on) : 0.076 Ohms


Features:

·3.5 A, 60 V. R_DS(ON) = 0.100 W @ V_GS = 10 V,  R_DS(ON) = 0.200 W @ V_GS = 4.5 V.
·High density cell design for extremely low R_DS(ON).
·High power and current handling capability in a widely used surface mount package.
·Dual MOSFET in surface mount package.


Pinout




Specifications

Symbol	Parameter	NDS9945	Units
VDSS	Drain-Source Voltage	60	V
VGSS	Gate-Source Voltage	±20	V
ID	Drain Current - Continuous (Note 1a) - Pulsed	3.5	A
		10
PD	Power Dissipation for Dual Operation	2	W
	Power Dissipation for Single Operation (Note 1a) (Note 1b) (Note 1c)	1.6
		1
		0.9
TJ,TSTG	Operating and Storage Temperature Range	0.9
THERMAL CHARACTERISTICS
RJA	Thermal Resistance, Junction-to-Ambient (Note 1a)	78	°C/W
RJC	Thermal Resistance, Junction-to-Case (Note 1)	40	°C/W

© 1998 Fairchild Semiconductor Corporation


Description

SO-8 N-Channel enhancement mode power field effect transistors NDS9945 are produced using Fairchild's proprietary, high cell density, DMOS technology. This very high density process is especially tailored to provide superior switching performance and minimize on-state resistance. NDS9945 is particularly suited for low voltage applications such as disk drive motor control, battery powered circuits where fast switching, low in-line power loss, and resistance to transients are needed.

Parameters:

Technical/Catalog Information	NDS9945
Vendor	Fairchild Semiconductor
Category	Discrete Semiconductor Products
Mounting Type	Surface Mount
FET Polarity	2 N-Channel (Dual)
Drain to Source Voltage (Vdss)	60V
Current - Continuous Drain (Id) @ 25° C	3.5A
Rds On (Max) @ Id, Vgs	100 mOhm @ 3.5A, 10V
Input Capacitance (Ciss) @ Vds	345pF @ 25V
Power - Max	2W
Packaging	Tape & Reel (TR)
Gate Charge (Qg) @ Vgs	30nC @ 10V
Package / Case	SO-8
FET Feature	*
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	NDS9945 NDS9945 NDS9945TR ND NDS9945TRND NDS9945TR