LTC1156 Linear Technology, LTC1156 Datasheet

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LTC1156

Manufacturer Part Number
LTC1156
Description
Quad High Side Micropower MOSFET Driver with Internal Charge Pump
Manufacturer
Linear Technology
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1156CS
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1156CSW
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1156CSW#PBF
Manufacturer:
LTC
Quantity:
233
FEATURE
A
TYPICAL
ALL COMPONENTS SHOWN ARE SURFACE MOUNT. MINIMUM PARTS COUNT
SHOWN. CURRENT LIMITS CAN BE SET SEPARATELY AND TAILORED TO
INDIVIDUAL LOAD CHARACTERISTICS.
* IMS026 INTERNATIONAL MANUFACTURING SERVICES, INC. (401) 683-9700
PPLICATI
No External Charge Pump Components
Fully Enhances N-Channel Power MOSFETs
16 Microamps Standby Current
95 Microamps ON Current
Wide Power Supply Range 4.5V to 18V
Controlled Switching ON and OFF Times
Replaces P-Channel High Side Switches
Compatible with Standard Logic Families
Available in 16-pin SOL Package
Laptop Computer Power Switching
SCSI Termination Power Switching
Cellular Telephone Power Management
P-Channel Switch Replacement
Battery Charging and Management
Low Frequency H-Bridge Driver
Stepper Motor and DC Motor Control
CONTROL
OR P
LOGIC
5V
5V
+
S
A
10 F
O
PPLICATI
IN1
IN2
IN3
IN4
U
Laptop Computer Power Management
GND GND
LTC1156
S
V
S
V
S
DS1
DS2
DS3
DS4
G1
G2
G3
G4
O
U
0.1 F
Si9956DY
Si9956DY
100k
*30m
with Internal Charge Pump
Micropower MOSFET Driver
FLOPPY DISK
D
The LTC1156 quad High side gate driver allows using low
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 opera-
tion, with 16 A standby current and 95 A operating
current, allows use in virtually all systems with maximum
efficiency.
Included on chip is independent over-current sensing to
provide automatic shutdown in case of short circuits. A
time delay can be added to the current sense to prevent
false triggering on high in-rush current loads.
The LTC1156 operates off of a 4.5V to 18V supply and is
well suited for battery-powered applications, particularly
where micropower “sleep” operation is required.
The LTC1156 is available in both 16-pin DIP and 16-pin
SOL packages.
PERIPHERAL
HARD DISK
DISPLAY
DRIVE
DRIVE
ESCRIPTIO
1156 TA01
U
100
60
90
80
70
50
40
30
20
10
Quad High Side
0
0
V
T
IN1
J
= 25°C
= V
Standby Supply Current
IN2
5
SUPPLY VOLTAGE (V)
= V
IN3
= V
10
IN4
LTC1156
= 0V
15
LTC1156 G01
1
20

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LTC1156 Summary of contents

Page 1

... A time delay can be added to the current sense to prevent false triggering on high in-rush current loads. The LTC1156 operates off of a 4.5V to 18V supply and is well suited for battery-powered applications, particularly where micropower “sleep” operation is required. The LTC1156 is available in both 16-pin DIP and 16-pin SOL packages ...

Page 2

... SEN V – V Gate Voltage Above Supply GATE S t Turn-ON Time Operating Temperature Range LTC1156C ............................................. Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec.)................. 300 ORDER PART NUMBER 1 GND 2 IN1 LTC1156CN IN2 4 IN3 ...

Page 3

... Standby Supply Current 100 IN1 IN2 IN3 IN4 25° SUPPLY VOLTAGE (V) LTC1156 G01 Standby Supply Current 100 IN1 IN2 IN3 IN4 18V –50 25 ...

Page 4

... VOLTAGE TTL-TO-CMOS IN REGULATORS CONVERTER GND U OPER ATIO The LTC1156 contains four independent power MOSFET gate drivers and protection circuits (refer to the Block Diagram for detail). Each section of LTC1156 consists of the following functional blocks HARA TERISTICS C Turn-OFF Time 1000pF ...

Page 5

... Supply and Ground Pins The two supply pins (3 and 8) of the LTC1156 must be connected together at all times and the two ground pins (1 and 6) must be connected together at all times. The two supply pins should be connected to the “ ...

Page 6

... G3 IN4 G4 GND GND * KEYSTONE RL2006-100-100-30-PT MOUNT ON HEATSINK. + 18V 100k 0.1 F 1N4746 200k DS1 S S DS2 100k IN1 30k G2 IN2 LTC1156 DS3 30k G3 IN3 DS4 30k IN4 G4 GND GND 150 1/2W IRF530 IRF530 M IRF530 IRF530 1156 TA03 1N4148 15V IRFZ44 1N5245A 150 3 IRFZ24 ...

Page 7

... Si9956DY GND GND * STR101G TECHNO (818) 781-1642 Low Frequency Operation (<100Hz) 0.1 F 0.1 F 0.05 100k V V DS1 S S DS2 DS3 DS4 Si9956DY IN1 LTC1156 G1 IN2 IN3 G2 G3 IN4 GND GND G4 LTC1156 0.05 2A MAX 1N4001 A 1N4001 B 1N4001 C 1N4001 D 1156 TA05 0.05 100k Si9956DY LOAD 1156 TA06 7 ...

Page 8

... LTC1156 PACKAGE DESCRIPTIO 0.300 – 0.325 0.130 ± 0.005 (7.620 – 8.255) (3.302 ± 0.127) 0.015 (0.381) MIN 0.009 – 0.015 (0.229 – 0.381) +0.025 0.325 –0.015 0.125 ( +0.635 ) (3.175) 8.255 –0.381 MIN 0.291 – 0.299 (7.391 – 7.595) ...

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