LTC1982ES6#TRMPBF Linear Technology, LTC1982ES6#TRMPBF Datasheet

IC CTRLR SW HI-SIDE SGL SOT23-6

LTC1982ES6#TRMPBF

Manufacturer Part Number
LTC1982ES6#TRMPBF
Description
IC CTRLR SW HI-SIDE SGL SOT23-6
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1982ES6#TRMPBF

Configuration
High-Side
Input Type
Inverting
Delay Time
110µs
Number Of Configurations
2
Number Of Outputs
2
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Peak
-
High Side Voltage - Max (bootstrap)
-
Other names
LTC1982ES6#TRMPBFTR

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FEATURES
TYPICAL APPLICATIONS
APPLICATIO S
No External Components Required
Internal Voltage Triplers Produce High Side
Gate Drive for Logic Level FETs
Ultralow Power:
V
Gate Drive Outputs Driven to Ground During
Shutdown
Gate Drive Outputs Internally Clamped to 7.5V Max
“Gate Drive Ready” Output (LTC1981)
Ultrasmall Application Circuit
5-Pin SOT-23 Package (LTC1981)
6-Pin SOT-23 Package (LTC1982)
Cellular Telephones
Portable POS Terminal
Handheld Battery Powered Equipment
CC
1.8V TO 5.0V
10 A Per Driver ON Current (LTC1982)
20 A ON Current (LTC1981)
<1 A Shutdown Current
Range: 1.8V to 5V
READY
DRIVE
SHDN
GATE
10 F
V
CC
Single High Side Switch Controller
+
100k
U
GDR
V
CC
5
1
LTC1981
GND
2
U
SHDN
GATE
4
3
LOAD
1981/82 TA01
Q1
Si3442DV
Single and Dual Micropower
High Side Switch Controllers
1.8V TO 5.0V
DESCRIPTIO
The LTC
N-channel MOSFET drivers. An internal voltage tripler
allows gates to be driven without the use of any external
components. Internal regulation circuitry allows quies-
cent current to drop to 10 A per driver (20 A for LTC1981)
once the gates are charged.
Low quiescent current and low shutdown current (under
1 A) make these parts ideal for battery and other power
constrained systems. The wide input voltage range ac-
commodates a variety of battery/input configurations.
Gate drive is internally clamped to 7.5V providing protec-
tion to the external MOSFET gate. The MOSFETs can be
driven in either high side or low side mode.
The LTC1981 single driver version also includes a gate
drive ready pin and twice the drive current capacity of the
dual driver LTC1982.
The LTC1981 is available in a 5-pin SOT-23. The LTC1982
is available in a 6-pin SOT-23.
, LTC and LT are registered trademarks of Linear Technology Corporation.
SHDN 1
SHDN 2
10 F
V
CC
+
®
1981/LTC1982 are low-power, self-contained
SHDN 1
Dual High Side Switch Controller
V
CC
6
1
U
LTC1982
LTC1981/LTC1982
GATE 1 GATE 2
GND
5
2
SHDN 2
4
3
LOAD 1
in SOT-23
Q1
1/2 Si6925DQ
LOAD 2
Q2
1/2 Si6925DQ
1981/82 TA02
1

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LTC1982ES6#TRMPBF Summary of contents

Page 1

... The LTC1981 single driver version also includes a gate drive ready pin and twice the drive current capacity of the dual driver LTC1982. The LTC1981 is available in a 5-pin SOT-23. The LTC1982 is available in a 6-pin SOT-23. , LTC and LT are registered trademarks of Linear Technology Corporation 1.8V TO 5.0V Q1 ...

Page 2

LTC1981/LTC1982 ABSOLUTE AXI U RATI GS Terminal Voltage LTC1981 GATE, SHDN, GDR ........ –0.3V to 7.5V CC LTC1982 GATE 1, GATE 2, CC SHDN 1, SHDN 2 ................... –0.3V to 7.5V U PACKAGE/ORDER ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T (LTC1981 only) SYMBOL PARAMETER V GDR Output Voltage Low OL GATE Drive Ready Trip Point GDR Hysteresis GDR Delay Note 1: Absolute Maximum Ratings are those values beyond which the life ...

Page 4

LTC1981/LTC1982 W U TYPICAL PERFOR A CE CHARACTERISTICS Turn-On Time (LTC1982) 400 C = 1000pF GATE 350 A 300 250 200 150 100 1.5 2.0 2.5 ...

Page 5

PIN FUNCTIONS GATE 2(Pin 4): Gate Drive Output to an External High Side Switch. Fully enhanced by internal charge pump. Con- trolled by the SHDN 2 input pin. Output voltage on this pin will be approximately 2.5 ...

Page 6

LTC1981/LTC1982 U U APPLICATIONS INFORMATION Logic-Level MOSFET Switches The LTC1981/LTC1982 are designed to operate with logic- level N-channel MOSFET switches. Although there is some variation among manufacturers, logic-level MOSFET switches are typically rated with V GS continuous V rating of ...

Page 7

... MOLD FLASH SHALL NOT EXCEED 0.254mm 5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. W ...

Page 8

... Latchoff Current Limit Three MOSFET Drivers in 8-Lead SO Package Uses External Switches, Two Three-State Address Pins Uses Internal Switches, One Three-State Address Pin Q1 Si6954DQ Q2 Si6954DQ HIGH SIDE LOAD 1981/82 • TA03 sn19812 19812fs LT/LCG 1200 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2000 ...

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