LTC1154CN8 Linear Technology, LTC1154CN8 Datasheet

IC MOSFET DRIVER HIGH-SIDE 8-DIP

LTC1154CN8

Manufacturer Part Number
LTC1154CN8
Description
IC MOSFET DRIVER HIGH-SIDE 8-DIP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1154CN8

Configuration
High-Side
Input Type
Inverting
Delay Time
160µs
Number Of Configurations
1
Number Of Outputs
1
Voltage - Supply
4.5 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Peak
-
High Side Voltage - Max (bootstrap)
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1154CN8
Manufacturer:
LT
Quantity:
5 510
Part Number:
LTC1154CN8
Manufacturer:
SHARP
Quantity:
5 510
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
TYPICAL APPLICATION
**
5V
*
ALL COMPONENTS SHOWN ARE SURFACE MOUNT.
IMS026 INTERNATIONAL MANUFACTURING SERVICE, INC. (401) 683-9700
NOT REQUIRED IF LOAD IS RESISTIVE OR INDUCTIVE.
Fully Enhances N-Channel Power MOSFETs
8μA I
85μA I
No External Charge Pump Capacitors
4.5V to 18V Supply Range
Short-Circuit Protection
Thermal Shutdown via PTC Thermistor
Status Output Indicates Shutdown
Available in 8-Pin SOIC and PDIP Packages
Laptop Computer Power Switching
SCSI Termination Power Switching
Cellular Telephone Power Management
Battery Charging and Management
High Side Industrial and Automotive Switching
Stepper Motor and DC Motor Control
μP
Q
Q
Standby Current
Ultralow Voltage Drop High Side Switch with
ON Current
51k
Short-Circuit Protection
IN
EN
STATUS
GND
LTC1154
DS
SD
V
G
S
0.1μF**
0.036Ω*
200k**
LOAD
5V
IRLR024
2.7A MAX
LTC1154 • TA01
DESCRIPTION
The LTC
cost N-channel FETs for high side switching applications. An
internal charge pump boosts the gate drive voltage above
the positive rail, fully enhancing an N-channel MOS switch
with no external components. Micropower operation, with
8μA standby current and 85μA operating current, allows
use in virtually all systems with maximum effi ciency.
Included on chip is programmable overcurrent sensing.
A time delay can be added to prevent false triggering on
high inrush current loads. An active high shutdown input
is also provided and interfaces directly to a standard PTC
thermistor for thermal shutdown. An open-drain output
is provided to report switch status to the μP . An active
low enable input is provided to control multiple switches
in banks.
The LTC1154 is available in both 8-pin DIP and 8-pin SOIC
packages.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
®
1154 single high side gate driver allows using low
High Side Micropower
30
50
45
40
35
25
20
15
10
0
5
0
V
T
J
IN
= 25°C
= 0V
Standby Supply Current
5
SUPPLY VOLTAGE (V)
MOSFET Driver
10
15
LTC1153 • TA02
LTC1154
20
1154fb
1

Related parts for LTC1154CN8

LTC1154CN8 Summary of contents

Page 1

... The LTC1154 is available in both 8-pin DIP and 8-pin SOIC packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners 0.036Ω ...

Page 2

... LTC1154CS8#PBF LTC1154CS8#TRPBF LTC1154HS8#PBF LTC1154HS8#TRPBF LEAD BASED FINISH TAPE AND REEL LTC1154CN8 LTC1154CN8#TR LTC1154CS8 LTC1154CS8#TR LTC1154HS8 LTC1154HS8#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER V Input Low Voltage INL I Input Current IN C Input Capacitance IN ENABLE Input High Voltage V ENH ENABLE Input Low Voltage V ENL ENABLE Input Current ...

Page 4

LTC1154 TYPICAL PERFORMANCE CHARACTERISTICS Standby Supply Current 25° SUPPLY VOLTAGE (V) LTC1154 • TPC01 Input Threshold Voltage 2.4 ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Standby Supply Current 18V –50 – 100 ...

Page 6

LTC1154 PIN FUNCTIONS Gate Drive Pin The gate drive pin is either driven to ground when the switch is turned OFF or driven above the supply rail when the switch is turned ON. This pin is a relatively high impedance ...

Page 7

TRUTH TABLE INPUTS OUTPUTS GATE STATUS SWITCH LATCHED OFF SWITCH LATCHED OFF L ...

Page 8

LTC1154 OPERATION manner. The charge and discharge rates have been set to minimize RFI and EMI emissions in normal operation short-circuit or current overload condition is encoun- tered, the gate is discharged very quickly (typically a few microseconds) ...

Page 9

APPLICATIONS INFORMATION Capacitive Loads Large capacitive loads, such as complex electrical systems with large bypass capacitors, should be powered using the circuit shown in Figure 3. The gate drive to the power MOSFET is passed through an RC delay network, ...

Page 10

LTC1154 APPLICATIONS INFORMATION The Y axis of the graph is normalized to one RC time constant. The X axis is normalized to the current. (The set current is defi ned as the current required to develop 100mV across the drain ...

Page 11

APPLICATIONS INFORMATION added as shown in Figure 8 which holds the supply pin of the LTC1154 high long enough for the overcurrent shutdown circuitry to respond and fully discharge the gate. Five volt linear regulators with small output capacitors are ...

Page 12

LTC1154 TYPICAL APPLICATIONS 24V to 28V Switch with Bootstrapped Supply 24V TO 28V + 100k 100μF 5V 18V μ CONTROL DS LOGIC LTC1154 † STATUS G GND SD PTC THERMISTOR (100°C)* * KEYSTONE RL2006-100-100-30-PT. MOUNT ...

Page 13

TYPICAL APPLICATIONS Bank Controlled High Side Switches with “Global” Thermal 5V 51k μP OR CONTROL LOGIC *KEYSTONE RL2006-100-100-30-PT. MOUNT ON COMMON HEAT SINK. and Overvoltage Shutdown 12V 100Ω LTC1154 STATUS G GND SD IN ...

Page 14

LTC1154 TYPICAL APPLICATIONS 5V + 470μF ON/OFF 51k DS LTC1154 STATUS STATUS G GND SD 1N5820 50μ 150μ LT1070 2 FB GND 1μF ...

Page 15

PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( ) +0.889 8.255 –0.381 NOTE: 1. DIMENSIONS ARE MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS ...

Page 16

LTC1154 PACKAGE DESCRIPTION .050 BSC .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT ...

Page 17

... Updated SCSI Termination Typical Application Updated Related Parts 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC1154 ...

Page 18

... Peak Pull-Up/1.5Ω CC ≤ 25V, 6A Peak Output Current CC ≤ 13.5V, 3A Peak Pull-Up/0.55Ω CC ≤ 13.5V, 3A Peak Pull-Up/ CC ≤ 9.5V, 3.2A Peak Pull-Up 0411 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1992 1154fb ...

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