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LTC1157CS8#TRPBF

Description
Driver 8.7V 2-OUT High and Low Side 8-Pin SOIC N T/R
File Size185KB,8 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1157CS8#TRPBF Overview

Driver 8.7V 2-OUT High and Low Side 8-Pin SOIC N T/R

LTC1157CS8#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Driver TypeHigh and Low Side
Number of Drivers2
High and Low Sides DependencySynchronous
TypeMOSFET
Number of Outputs2
Input Logic CompatibilityCMOS
Minimum Operating Supply Voltage (V)-0.3
Typical Operating Supply Voltage (V)3.3|5
Maximum Operating Supply Voltage (V)7
Maximum Supply Current (mA)0.4
Reference Voltage (V)8.7
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
Special FeaturesOn-Off Control
Maximum Turn-On Delay Time (ns)750000
Maximum Turn-Off Delay Time (ns)60000
PackagingTape and Reel
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LTC1157
3.3V Dual Micropower
High-Side/Low-Side MOSFET Driver
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Allows Lowest Drop 3.3V Supply Switching
Operates on 3.3V or 5V Nominal Supplies
3 Microamps Standby Current
80 Microamps ON Current
Drives Low Cost N-Channel Power MOSFETs
No External Charge Pump Components
Controlled Switching ON and OFF Times
Compatible with 3.3V and 5V Logic Families
Available in 8-Pin SOIC
APPLICATI
s
s
s
s
s
s
s
S
Notebook Computer Power Management
Palmtop Computer Power Management
P-Channel Switch Replacement
Battery Charging and Management
Mixed 5V and 3.3V Supply Switching
Stepper Motor and DC Motor Control
Cellular Telephones and Beepers
The LTC1157 dual 3.3V micropower MOSFET gate driver
makes it possible to switch either supply or ground
reference loads through a low R
DS(ON)
N-channel switch
(N-channel switches are required at 3.3V because P-
channel MOSFETs do not have guaranteed R
DS(ON)
with
V
GS
3.3V). The LTC1157 internal charge pump boosts
the gate drive voltage 5.4V above the positive rail (8.7V
above ground), fully enhancing a logic level N-channel
switch for 3.3V high-side applications and a standard N-
channel switch for 3.3V low-side applications. The gate
drive voltage at 5V is typically 8.8V above supply (13.8V
above ground), so standard N-channel MOSFET switches
can be used for both high-side and low-side applications.
Micropower operation, with 3µA standby current and
80µA operating current, makes the LTC1157 well suited
for battery-powered applications.
The LTC1157 is available in both 8-pin DIP and SOIC.
TYPICAL APPLICATI
Ultra Low Voltage Drop 3.3V Dual High-Side Switch
12
3.3V
GATE VOLTAGE – SUPPLY VOLTAGE (V)
+
10µF
10
8
6
4
2
0
2.0 2.5
V
S
3.3V
LOGIC
IN1
LTC1157
IN2
GND
G2
G1
(8.7V)
(8.7V)
IRLR024
IRLR024
3.3V
LOAD
3.3V
LOAD
LTC1157 • TA01
U
Gate Voltage Above Supply
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
6.0
LTC1157 • TA02
UO
UO
1

LTC1157CS8#TRPBF Related Products

LTC1157CS8#TRPBF LTC1157CN8#PBF LTC1157CS8#PBF LTC1157CS8
Description Driver 8.7V 2-OUT High and Low Side 8-Pin SOIC N T/R Driver 8.7V 2-OUT High and Low Side 8-Pin PDIP N Tube Driver 8.7V 2-OUT High and Low Side 8-Pin SOIC N Tube Driver 8.7V 2-OUT High and Low Side 8-Pin SOIC N
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Unconfirmed
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
Driver Type High and Low Side High and Low Side High and Low Side High and Low Side
Number of Drivers 2 2 2 2
High and Low Sides Dependency Synchronous Synchronous Synchronous Synchronous
Type MOSFET MOSFET MOSFET MOSFET
Number of Outputs 2 2 2 2
Input Logic Compatibility CMOS CMOS CMOS CMOS
Minimum Operating Supply Voltage (V) -0.3 -0.3 -0.3 -0.3
Typical Operating Supply Voltage (V) 3.3|5 5|3.3 5|3.3 3.3|5
Maximum Operating Supply Voltage (V) 7 7 7 7
Maximum Supply Current (mA) 0.4 0.4 0.4 0.4
Reference Voltage (V) 8.7 8.7 8.7 8.7
Maximum Operating Temperature (°C) 70 70 70 70
Supplier Temperature Grade Commercial Commercial Commercial Commercial
Special Features On-Off Control On-Off Control On-Off Control On-Off Control
Maximum Turn-On Delay Time (ns) 750000 750000 750000 750000
Maximum Turn-Off Delay Time (ns) 60000 60000 60000 60000
Pin Count 8 8 8 8
Standard Package Name SOP DIP SOP SOP
Supplier Package SOIC N PDIP N SOIC N SOIC N
Mounting Surface Mount Through Hole Surface Mount Surface Mount
Package Height 1.5(Max) 3.3 1.5(Max) 1.5(Max)
Package Length 5(Max) 10.16(Max) 5(Max) 5(Max)
Package Width 3.99(Max) 6.48 3.99(Max) 3.99(Max)
PCB changed 8 8 8 8
Lead Shape Gull-wing Through Hole Gull-wing Gull-wing
Packaging Tape and Reel Tube Tube -
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