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DATA SHEET
INTEGRATED LOAD SWITCH
PA1981
N-CHANNEL/P-CHANNEL MOS FET PAIR FOR LOAD SWITCH
PACKAGE DRAWING (Unit: mm) DESCRIPTION
power management in portable electronic equipment where 2.5 to 8 V This load switch integrated a small N-Channel MOS FET (Q1), which drives a large P-Channel MOS FET (Q2) in one tiny package (SC-95).
2.8 0.2 0.65 -0.15
The PA1981 is a N-Channel/P-Channel MOS FET pair for compact input and 2.8 A output current capability are needed.
0.32 +0.1 -0.05
+0.1
0.16 +0.1 -0.06
1.5
0 to 0.1
* VS2D21 = 0.2 V MAX. (VS2S1 = 5.0 V, ID2 = -2.8 A, RD2S2(on)1 = 70 m) * VS2D22 = 0.2 V MAX. (VS2S1 = 2.5 V, ID2 = -1.9 A, RD2S2(on)2 = 105 m)
1.9 2.9 0.2 0.9 to 1.1
ORDERING INFORMATION
PART NUMBER PACKAGE SC-95 (Mini Mold Thin Type)
PA1981TE
Marking: TZ
ABSOLUTE MAXIMUM RATINGS (TA = 25C)
Source2 to Source1 Input Voltage Range Gate1 to Source1 On Voltage Range Drain2 Current (DC)
Note1 Note2 Note1
PIN CONNECTION (Top View)
2.5 to 8.0 1.5 to 7.0 -2.8 -10.0 1.0 150 -55 to +150 V V A A W C C
1 2 3 6 5 4
1. S1(Q1) 2. D2(Q2) 3. D2(Q2) 4. S2(Q2) 5. G1(Q1) 6. G2/D1
VS2S1 VG1S1 ID2(DC) ID2(pulse) PT Tch Tstg
2
Drain2 Current (pulse) Channel Temperature Storage Temperature
Total Power Dissipation
Notes 1. Mounted on FR-4 Board of 2500 mm x 1.6 mm, t 5 sec 2. PW 10 s, Duty Cycle 1%
Remark The diode connected between the gate and source of the transistor serves as a protector against ESD. When this device actually used, an additional protection circuit is externally required if a voltage exceeding the rated voltage may be applied to this device.
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information.
Document No. G17263EJ1V0DS00 (1st edition) Date Published July 2004 NS CP(K) Printed in Japan
0.4
FEATURES
0.95
0.95
0.65
2004
PA1981
ELECTRICAL CHARACTERISTICS (TA = 25C)
CHARACTERISTICS OFF CHARACTERISTICS Q2-S2 to D2 Leakage Current Q1-D1 to S1 Leakage Current ON CHARACTERISTICS Q2-S2 to D2 Voltage
Note
SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
IS2D2 ID1S1
VS2D2 = 8.0 V, VG1S1 = 0 V VD1S1 = 8.0 V, VG1S1 = 0 V
1.0 1.0
A A
VS2D21 VS2D22
VS2S1 = 5.0 V, VG1S1 = 3.3 V, ID2 = -2.8 A VS2S1 = 2.5 V, VG1S1 = 3.3 V, ID2 = -1.9 A VG2S2 = -5.0 V, ID2 = -2.8A VG2S2 = -2.5 V, ID2 = -1.9 A VS2D2 = 0.2 V, VS2S1 = 5.0 V, VG1S1 = 3.3 V VS2D2 = 0.2 V, VS2S1 = 2.5 V, VG1S1 = 3.3 V 2.8 1.9
0.15 0.15 52 76
0.2 0.2 70 105
V V m m A A
Q2-Static On-Resistance
Note
RD2S2(on)1 RD2S2(on)2
Q2-S2 to D2 Current
Note
IS2D21 IS2D22
Note Pulsed: PW 350 s, Duty Cycle 2%
CIRCUIT1 EXAMPLE OF APPLICATION CIRCUIT
PA1981
Q2 S2 +Vin R1 D2
G2/D1 Ci G1 VON/OFF S1 GND Q1 Co LOAD
RECOMMENDATION OF CIRCUIT1
Co 1 F for applications R1 is required to turn Q2 off. Select R1 in the range of 10 to 470 k.
2
Data Sheet G17263EJ1V0DS
PA1981
TYPICAL CHARACTERISTICS (TA = 25C)
ON-STATE VOLTAGE (Pch) vs. DRAIN2 CURRENT ON-STATE VOLTAGE (Pch) vs. CHANNEL TEMPERATURE
0.20
VS2D2 - On-state Voltage (Pch) - V VS2D2 - On-state Voltage (Pch) - V
0.20
Tch = 125C
0.16 0.12 0.08 0.04 0 0 -0.5 -1
0.16 0.12 0.08 0.04 0
Tch = 125C 25C
25C
Pulsed VS2S1 = 5.0 V VG1S1 = 1.5 to 7.0 V -1.5 -2 -2.5 -3
Pulsed VS2S1 = 2.5 V VG1S1 = 1.5 to 7.0 V 0 -0.5 -1 -1.5 -2 -2.5 -3
ID2 - Drain2 (Pch) Current - A ON-STATE RESISTANCE (Pch) vs. INPUT VOLTAGE
ID2 - Drain2 (Pch) Current - A ON-STATE RESISTANCE (Pch) vs. CHANNEL TEMPERATURE
12
RD2S2(on) - Static On-Resistance - m RD2S2(on) - Static On-Resistance - m
14
Pulsed ID2 = -2.8 A VG1S1 = 1.5 to 7.0 V
10 8 6 4 2 0 1 2 3 4
12 10 8 6 4 2 0
Pulsed VG1S1 = 1.5 to 7.0 V
VS2S1 = 2.5 V ID2 = -1.9 A
VS2S1 = 5.0 V ID2 = -2.8 A
5
6
7
8
-50
-25
0
25
50
75
100 125 150
VS2S1 - Source2 to Source Input Voltage - V
Tch - Channel Temperature - C
TRANSIENT THERMAL RESISTANCE vs. PULSE WIDTH
1000
rth- Transient Thermal Resistance - C/W
100
10
1 Single pulse Mounted on FR-4 board of 2500 mm2 x 1.6 mm 0.1
1m 10 m 100 m 1 PW - Pulse Width - s 10 100 1000
Data Sheet G17263EJ1V0DS
3
PA1981
* The information in this document is current as of July, 2004. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC Electronics data sheets or data books, etc., for the most up-to-date specifications of NEC Electronics products. Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information. * No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Electronics. NEC Electronics assumes no responsibility for any errors that may appear in this document. * NEC Electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of NEC Electronics products listed in this document or any other liability arising from the use of such products. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Electronics or others. * Descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. NEC Electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. * While NEC Electronics endeavors to enhance the quality, reliability and safety of NEC Electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. To minimize risks of damage to property or injury (including death) to persons arising from defects in NEC Electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. * NEC Electronics products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to NEC Electronics products developed based on a customerdesignated "quality assurance program" for a specific application. The recommended applications of an NEC Electronics product depend on its quality grade, as indicated below. Customers must check the quality grade of each NEC Electronics product before using it in a particular application. "Standard": Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. "Special": Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). "Specific": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. The quality grade of NEC Electronics products is "Standard" unless otherwise expressly specified in NEC Electronics data sheets or data books, etc. If customers wish to use NEC Electronics products in applications not intended by NEC Electronics, they must contact an NEC Electronics sales representative in advance to determine NEC Electronics' willingness to support a given application. (Note) (1) "NEC Electronics" as used in this statement means NEC Electronics Corporation and also includes its majority-owned subsidiaries. (2) "NEC Electronics products" means any product developed or manufactured by or for NEC Electronics (as defined above).
M8E 02. 11-1

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