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LTC1981ES5#TRM

Description
Gate Driver LTC1981 - Single and Dual Micropower High Side Switch Controllers in SOT-23
CategoryPower/power management    The power supply circuit   
File Size149KB,8 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1981ES5#TRM Overview

Gate Driver LTC1981 - Single and Dual Micropower High Side Switch Controllers in SOT-23

LTC1981ES5#TRM Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionLSSOP,
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHED CAPACITOR REGULATOR
Maximum input voltage5.5 V
Minimum input voltage1.8 V
Nominal input voltage5 V
JESD-30 codeR-PDSO-G5
JESD-609 codee0
length2.95 mm
Humidity sensitivity level1
Number of functions1
Number of terminals5
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)255
Certification statusNot Qualified
Maximum seat height1.45 mm
surface mountYES
Switch configurationTRIPLER
Maximum switching frequency600 kHz
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width1.625 mm
LTC1981/LTC1982
Single and Dual Micropower
High Side Switch Controllers
in SOT-23
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
No External Components Required
Internal Voltage Triplers Produce High Side
Gate Drive for Logic Level FETs
Ultralow Power:
10µA Per Driver ON Current (LTC1982)
20µA ON Current (LTC1981)
<1µA Shutdown Current
V
CC
Range: 1.8V to 5V
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)
The LTC
®
1981/LTC1982 are low-power, self-contained
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 10µA per driver (20µA for LTC1981)
once the gates are charged.
Low quiescent current and low shutdown current (under
1µA) 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.
APPLICATIO S
s
s
s
Cellular Telephones
Portable POS Terminal
Handheld Battery Powered Equipment
TYPICAL APPLICATIONS
Single High Side Switch Controller
V
CC
1.8V TO 5.0V
Dual High Side Switch Controller
V
CC
1.8V TO 5.0V
+
10µF
Q1
Si3442DV
+
10µF
6
V
CC
5
LTC1982
SHDN 1
1
SHDN 1
GND
2
SHDN 2
3
4
5
V
CC
100k
GDR
GATE
DRIVE
READY
SHDN
1
LTC1981
GND
2
4
GATE
LOAD
SHDN
3
1981/82 TA01
SHDN 2
U
Q1
1/2 Si6925DQ
Q2
1/2 Si6925DQ
GATE 1 GATE 2
LOAD 1
LOAD 2
1981/82 TA02
U
U
1

LTC1981ES5#TRM Related Products

LTC1981ES5#TRM LTC1981ES5#TRMPBF LTC1982ES6#TRPBF LTC1981ES5#PBF LTC1982ES6#TRMPBF LTC1982ES6#PBF LTC1981ES5#TRPBF
Description Gate Driver LTC1981 - Single and Dual Micropower High Side Switch Controllers in SOT-23 Gate Drivers Single Micropower Hi Side Sw Controller Gate Drivers Dual Micropower Hi Side Sw Contoller Gate Drivers LTC1981 - Single and Dual Micropower High Side Switch Controllers in SOT-23 Gate Driver Dual Micropower Hi Side Sw Controller Gate Driver LTC1982 - Single and Dual Micropower High Side Switch Controllers in SOT-23 Gate DriverSingle Micropower Hi Side Sw Controller
Is it Rohs certified? incompatible conform to conform to conform to conform to conform to conform to
Maker ADI ADI ADI ADI ADI ADI ADI
package instruction LSSOP, LSSOP, LSSOP, LSSOP, LSSOP, LSSOP, LSSOP,
Reach Compliance Code not_compliant compliant compliant compliant compliant compliant compliant
Analog Integrated Circuits - Other Types SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR
Maximum input voltage 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum input voltage 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V
Nominal input voltage 5 V 5 V 5 V 5 V 5 V 5 V 5 V
JESD-30 code R-PDSO-G5 R-PDSO-G5 R-PDSO-G6 R-PDSO-G5 R-PDSO-G6 R-PDSO-G6 R-PDSO-G5
JESD-609 code e0 e3 e3 e3 e3 e3 e3
length 2.95 mm 2.95 mm 2.95 mm 2.95 mm 2.95 mm 2.95 mm 2.95 mm
Humidity sensitivity level 1 1 1 1 1 1 1
Number of functions 1 1 2 1 2 2 1
Number of terminals 5 5 6 5 6 6 5
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code LSSOP LSSOP LSSOP LSSOP LSSOP LSSOP LSSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 255 250 260 260 250 260 250
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.45 mm 1.45 mm 1.45 mm 1.45 mm 1.45 mm 1.45 mm 1.45 mm
surface mount YES YES YES YES YES YES YES
Switch configuration TRIPLER TRIPLER TRIPLER TRIPLER TRIPLER TRIPLER TRIPLER
Maximum switching frequency 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) MATTE TIN (SN) Matte Tin (Sn) Matte Tin (Sn) MATTE TIN Matte Tin (Sn) Matte Tin (Sn)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 40 NOT SPECIFIED 30 30 NOT SPECIFIED 30 NOT SPECIFIED
width 1.625 mm 1.625 mm 1.625 mm 1.625 mm 1.625 mm 1.625 mm 1.625 mm
Brand Name - Analog Devices Inc Analog Devices Inc Analog Devices Inc Analog Devices Inc Analog Devices Inc Analog Devices Inc
Is it lead-free? - Contains lead Contains lead Contains lead Contains lead Contains lead Contains lead
Contacts - 5 6 5 6 6 5
Manufacturer packaging code - 05-08-1635 05-08-1636 05-08-1635 05-08-1636 05-08-1636 05-08-1635
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