LTC1982ES6 Linear Technology Corporation, LTC1982ES6 Datasheet

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LTC1982ES6

Manufacturer Part Number
LTC1982ES6
Description
Manufacturer
Linear Technology Corporation
Datasheets

Specifications of LTC1982ES6

Date_code
04

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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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