Input Voltage (SENSE) ................. – 0.3V to (V
CC
+ 0.3V)
Input Voltage (ON) .....................................– 0.3V to 17V
Output Voltage (FAULT) ..............................– 0.3V to 17V
Output Voltage (GATE) ...........Internally Limited (Note 3)
PIN CONFIGURATION
TOP VIEW
V
CC1
TOP VIEW
V
CC
1
ON1 2
ON2 3
GND 4
8
7
6
5
SENSE1
SENSE2
GATE1
GATE2
V
CC
1
ON1/FAULT1 2
ON2/FAULT2 3
GND 4
TOP VIEW
8
7
6
5
SENSE1
SENSE2
GATE1
GATE2
ON1
FAULT1
ON2
FAULT2
NC
NC
GND
1
2
3
4
5
6
7
8
16 V
CC2
15 SENSE1
14 SENSE2
13 GATE1
12 GATE2
11 NC
10 NC
9
NC
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
q
JA
= 130°C/W
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
q
JA
= 130°C/W
GN PACKAGE
16-LEAD PLASTIC SSOP
T
JMAX
= 150°C,
q
JA
= 130°C/W
ORDER INFORMATION
LEAD FREE FINISH
LTC1647-1CS8#PBF
LTC1647-1IS8#PBF
LTC1647-2CS8#PBF
LTC1647-2IS8#PBF
LTC1647-3CGN#PBF
LTC1647-3IGN#PBF
TAPE AND REEL
LTC1647-1CS8#TRPBF
LTC1647-1IS8#TRPBF
LTC1647-2CS8#TRPBF
LTC1647-2IS8#TRPBF
LTC1647-3CGN#TRPBF
LTC1647-3IGN#TRPBF
PART MARKING*
16471
16471I
16472
16472I
16473
16473I
PACKAGE DESCRIPTION
8-Lead (4mm
¥
3mm) Plastic SO
8-Lead (4mm
¥
3mm) Plastic SO
8-Lead (4mm
¥
3mm) Plastic SO
8-Lead (4mm
¥
3mm) Plastic SO
16-Lead Plastic SSOP
16-Lead Plastic SSOP
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
1647fa
2
LTC1647-1/
LTC1647-2/LTC1647-3
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
CC
I
CC
I
CCX
V
LKO
V
LKH
V
CB
I
CP
V
CCX
Supply Range
V
CC
Supply Current (Note 4)
V
CCX
Supply Current (Note 5, LTC1647-3)
V
CCX
Undervoltage Lockout
V
CCX
Undervoltage Lockout Hysteresis
Circuit Breaker Trip Voltage
GATEX Output Current
V
CB
= V
CCX
– V
SENSEX
ONX High,
FAULTX
High, V
GATE
= GND (Sourcing)
ONX Low,
FAULTX
High, V
GATE
= V
CC
(Sinking)
ONX High,
FAULTX
Low, V
GATE
= 15V (Sinking)
(V
GATE
– V
CC
), V
CC1
= V
CC2
= 5V
(V
GATE
– V
CC
), V
CC1
= V
CC2
= 12V
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
CONDITIONS
Operating Range
ON1, ON2 = V
CC1
= V
CC2
, I
CC
= I
CC1
+ I
CC2
ONX = V
CCX
, I
CCX
Individually Measured,
V
CC1
= 5V, V
CC2
= 12V or V
CC1
= 12V, V
CC2
= 5V
Coming Out of UVLO (Rising V
CCX
)
l
l
l
l
MIN
2.7
TYP
1.0
0.5
MAX
16.5
6
5
2.60
60
14
UNITS
V
mA
mA
V
mV
mV
μA
μA
mA
V
V
V
V
mV
μA
V
V
μA
μs
2.30
40
6
2.45
210
50
10
50
50
13
15
1.29
1.21
70
±1
0.8
±1
0.3
ΔV
GATE
V
ONHI
V
ONLO
I
IN
V
OL
I
LEAK
t
FAULT
t
RESET
t
ON
t
OFF
External MOSFET Gate Drive
ONX Threshold High
ONX Threshold Low
ONX Input Current
FAULTX
Output Low Voltage
(LTC1647-2, LTC1647-3)
FAULTX
Output Leakage Current
(LTC1647-3)
Circuit Breaker Delay Time
Circuit Breaker Reset Time
Turn-On Time
Turn-Off Time
l
l
l
l
l
l
10
10
1.20
1.17
17
19
1.38
1.25
±10
0.4
±10
V
ONHYST
ONX Hysteresis
ON = GND or V
CC
I
O
= 1mA, V
CC
= 5V
I
O
= 5mA, V
CC
= 5V
No Fault,
FAULTX
= V
CC
= 5V
V
CCX
– V
SENSEX
= 0 to 100mV
ONX High to Low, to
FAULTX
High
ONX Low to High, to GATEX On
ONX High to Low, to GATEX Off
l
50
2
1
100
μs
μs
μs
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 3:
An internal Zener on the GATE pins clamp the charge pump
voltage to a typical maximum operating voltage of 28V. External overdrive
of the GATE pin beyond the internal Zener voltage may damage the device.
The GATE capacitance must be < 0.15μF at maximum V
CC
. If a lower GATE
pin clamp voltage is desired, use an external Zener diode.
Note 4:
The total supply current I
CC
is measured with V
CC1
and V
CC2
connected internally (LTC1647-1, LTC1647-2) or externally (LTC1647-3).
Note 5:
The individual supply current I
CCX
is measured on the LTC1647-3.
The lower of the two supplies, V
CC1
and V
CC2
, will have its channel’s
current. The higher supply will carry the additional supply current of the
charge pump and the bias generator beside its channel’s current.
1647fa
3
LTC1647-1/
LTC1647-2/LTC1647-3
PIN TABLES
LTC1647-1 Pinout
PIN
1
2
3
4
DESCRIPTION
V
CC
ON1
ON2
GND
PIN
5
6
7
8
DESCRIPTION
GATE2
GATE1
SENSE2
SENSE1
LTC1647-3 Pinout
PIN
1
2
3
4
5
6
7
PIN
5
6
7
8
DESCRIPTION
GATE2
GATE1
SENSE2
SENSE1
8
DESCRIPTION
V
CC
ON1
FAULT1
ON2
FAULT2
NC
NC
GND
PIN
9
10
11
12
13
14
15
16
DESCRIPTION
NC
NC
NC
GATE2
GATE1
SENSE2
SENSE1
V
CC2
LTC1647-1 Does Not Have the FAULT Status Feature.
LTC1647-2 Pinout
PIN
1
2
3
4
DESCRIPTION
V
CC
ON1 and
FAULT1
(Internally Tied Together)
ON1 and
FAULT2
(Internally Tied Together)
GND
The ONX/FAULTX must be connected to a driver via a resistor if the
I debugged the program on the IAR work surface. When I downloaded the program, it always failed to download. There was an error message. The program was correct, but it didn't work after several insta...
RT, I originally installed Ubuntu 12.04 on my vmware, and now I have installed fedora 9.0. When I log into fedora, I find that the sudo command cannot be used. After searching on Baidu, I find that I ...
The configuration and interrupt configuration of tim1 timer are as follows. Please help me find out if there is any problem. void TIM1_INT_Config(void) { NVIC_InitTypeDef NVIC_InitStructure; /* TIM1 ±...
unsigned char SPI_RW(unsigned char byte)
{unsigned char bit_ctr;for(bit_ctr=0;bit_ctr8;bit_ctr++){NRF_MOSI=(byte0x80); // MSB TO MOSIbyte=(byte1); // shift next bit to MSBNRF_SCK=1;byte|=NRF_MISO;// c...
[url=http://www.cinzy.com/count/?n=10&url=/soft/keil.rar][b]KEIL UV3 Green Lite Edition[/b][/url] Software Name: KEIL UV3 Update Date: 2008/6/6 Size: 4.97MB Description: KEIL UV3 is the best IDE (prog...
Designers use PSpice primarily to simulate analog circuits. However, it can also be used to simulate digital filters. The main components in a digital filter are delay elements, adders, and multipl...[Details]
TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is one of the three major standards for the third generation of mobile communications. It is a communication standard with indepen...[Details]
In the early 1990s, portable phones were all the rage. With the rapid development of electronic technology, today's mobile phones can not only send emails and text messages, but also take photos, ch...[Details]
Digital signal processors have efficient numerical computing capabilities and can provide a good development environment, while programmable logic devices have highly flexible configurability. This...[Details]
Introduction
The market for wireless telemetry products is developing rapidly. Recently, the industry has also set off a revolution in wireless applications. Wireless telemetry technol...[Details]
Overview
Bioelectric signals are very weak, and there is strong interference when detecting them. Therefore, there are many technical difficulties in designing high-quality bioelectric ampli...[Details]
The particularity of portable medical devices determines that they should be user-friendly, must work in a sterile environment, and occupy little space and consume low energy.
At the same time, por...[Details]
With the development of automatic control technology, the application of precision air pressure generation and control technology is becoming more and more extensive. However, the traditional valve...[Details]
TD-SCDMA terminal conformance test includes three types of tests: RF index test (reference standard: 3GPPTS34.122), protocol signaling test (reference standard: 3GPPTS34.123) and other tests (refer...[Details]
Abstract: This paper introduces the origin and new features of MP4, and introduces the core audio compression technology MPEG-2 AAC (Advanced Audio Coding) based on MP4. Finally, it briefly summari...[Details]
TMS320C62X is a new generation of high-performance fixed-point digital signal processor (
DSP
) chip
from Texas Instruments (
TI
). The software design problem based on
DSP
is to use...[Details]
Industrial control
often requires multi-channel fault detection and multi-channel command control (this multi-task setting is very common). A single CPU chip is difficult to directly complete ...[Details]
Abstract This paper
introduces a wireless radio frequency transmission chip nRF9E5 based on 8051 core. The remote control system of flapping-wing micro-aircraft is made by using this chip. Th...[Details]
The difference between CCD and CMOS sensors Mr.OH! briefly introduced CCD and CMOS in the second lecture, but for most students, what they see is a combination of integrated chips! The detailed int...[Details]
Development Status
Looking at the development of security monitoring technology: from the first generation of analog monitoring, to the second generation of digital monitoring, and then up...[Details]
ARM Technology
京公网安备 11010802033920号
EEWORLD
