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PDF LTM9100 Data sheet ( Hoja de datos )
| Número de pieza | LTM9100 | |
| Descripción | High Voltage Isolated Switch Controller | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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Features
LTM9100
Anyside™ High Voltage
Isolated Switch Controller with
I2C Command and Telemetry
Description
nn UL-CSA Recognition Pending: 5kVRMS for One
Minute
nn Reinforced Insulation
nn Integrated Isolated Power Supply
nn Adjustable Turn-On Ramp Rate and Current Limit
nn I2C/SMBus Interface
nn 10-Bit ADC Monitors Current and Two
Uncommitted Channels
nn High Common Mode Transient Immunity: ≥ 30kV/μs
nn Fault Status Alert and Power Good Outputs
nn Independent 3V to 5.5V Logic Supply
nn ±20kV ESD Across the Isolation Barrier
nn Maximum Continuous Working Voltage: 690VRMS
nn 14.6mm Creepage Distance
nn Low Current Shutdown Mode (<10µA)
nn 22mm × 9mm × 5.16mm BGA Package
Applications
nn High Voltage DC Hot Swap
nn Live Backplane Insertion
nn Isolated Distributed Power Systems
nn Power Monitors
nn Industrial Control Systems
nn Breaking Ground Loops
L, LT, LTC, LTM, Linear Technology, µModule, LTspice and the Linear logo are registered
trademarks and PowerPath and Anyside are trademarks of Linear Technology Corporation. All
other trademarks are the property of their respective owners.
The LTM®9100 µModule® (micromodule) controller is a
complete, galvanically isolated switch controller with I2C
interface, foruseasaloadswitch orhotswapcontroller. The
load is soft started and controlled by an external N-channel
MOSFET switch. Overcurrent protection minimizes
MOSFET stress during start-up, input step and output
short-circuit conditions. Owing to the isolated, floating
character of the switch, it is easily configured for use in
high side, low side and floating applications.
A single 5V supply powers both sides of the switch con-
troller through an integrated, isolated DC/DC converter.
A separate logic supply input allows easy interfacing with
logic levels from 3V to 5.5V, independent of the main
supply. Isolated measurements of load current and two
additional voltage inputs are made by a 10-bit ADC, and
accessed via the I2C interface.
The logic and I2C interface is separated from the switch
controller by a 5kVRMS isolation barrier, making the
LTM9100 ideal for systems where the switch operates on
buses up to 1000VDC, as well as for providing galvanic
isolation in systems where a ground path is broken to al-
low large common mode voltage swings. Uninterrupted
communication isguaranteedforcommonmodetransients
of up to 30kV/μs.
Typical Application
Isolated High Side Load Switch Driver
5V
1.5k
GATE
ENABLE
PINS NOT USED IN THIS CIRCUIT:
ADIN, ADIN2, ADR0, ADR1, ALERT,
ALERT2, EN2, PG, PG2, PGIO, SCL2,
SDA2, SS, TMR, VS
VCC2
UVH
UVL
VCC LTM9100
VL
ON
SCL
SDA
EN
GND
RAMP
DRAIN
GATE
SENSE+
SENSE–
OV
VEE
10nF, 400V
1k 5%
1M
270V
Q1
FDA50N50
0.01Ω
1%
LOAD(s)
100µF
400V
270V RTN
9100 TA01a
EN
5V/DIV
VLOAD
100V/DIV
ILOAD
200mA/DIV
PG
5V/DIV
For more information www.linear.com/LTM9100
270V Load Soft-Start
25ms/DIV
9100 TA01b
9100f
1
1 page  
LTM9100
E lectrical Characteristics The l denotes the specifications which apply over the specified operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VL = 3.3V, and GND = VEE = 0V, ON = VL unless otherwise noted.
SYMBOL
Timer
PARAMETER
OV Pin Hysteresis
Current Limit Sense Voltage
Threshold
PGIO Pin Input Threshold Voltage
PGIO Pin Input Hysteresis
Input Current
TMR Pin High Threshold
TMR Pin Low Threshold
TMR Pin Pull-Up Current
TMR Pin Pull-Down Current
Output Pins
VOH
VOL
Output High Voltage
Output Low Voltage
Input Current
Short-Circuit Current
ADC
Resolution (No Missing Codes)
INL Integral Nonlinearity
Offset Error
Full-Scale Voltage
Total Unadjusted Error
Conversion Rate
ADIN, ADIN2 Pin Input Resistance
ADIN, ADIN2 Pin Input Current
I2C Interface
ADR0, ADR1 Input High Threshold
ADR0, ADR1 Input Low Threshold
ADR0, ADR1 Input Current
Input Threshold Voltage
CONDITIONS
SENSE+ – SENSE–
VPGIO Rising
ON, EN, UVH, UVL, OV, SENSE+
SENSE–
VTMR Rising
VTMR Falling
Turn-On and Auto-Retry (Except OC) Delays,
VTMR = 0.2V
Power Good and OC Auto-Retry Delays,
VTMR = 0.2V
Delays Except OC Auto-Retry, VTMR = 2.56V
OC Auto-Retry Delays, VTMR = 2.56V
ALERT, ILOAD = –4mA, PG, ILOAD = –2mA
ALERT, ILOAD = 4mA, PG, ILOAD = 2mA
PAGLEIOR,TI2L,OPADG2=,
3mA
PGIO,
ILOAD
=
500µA
PGIO = 80V
0V ≤ ALERT ≤ VL
0V
0V
≤
≤
APLGE≤RTV2L,
PG2
≤
VCC2
0V ≤ EN2 ≤ VCC2
(Note 6)
SENSE
ADIN, ADIN2
SENSE
ADIN, ADIN2
SENSE
ADIN, ADIN2
SENSE
ADIN, ADIN2
ADIN, ADIN2 = 1.28V
ADIN, ADIN2 = 2.56V
ADR0,
ADR0,
ADR1
ADR1
=
=
00.V8,VV,C(CV2CC2
–
0.8V)
SCL, SDA
SDA2
MIN
l 18
l 45
l 1.10
l
l
TYP MAX UNITS
37.5 62 mV
50 55 mV
1.25 1.40
V
100 mV
0 ±2 µA
–10 –20 µA
l 2.43 2.56 2.69
V
l 40
75 110 mV
l –7
–10 –13 µA
l –3.5 –5 –7 µA
l6
l3
12 20 mA
5 7 µA
l VL – 0.4
l
l
l
l
l
l
0.8
0.15
0
±30
±30
V
0.4 V
1.6 V
0.4 V
10 µA
±85 mA
mA
mA
±2 mA
l 10
l
l
l
l
l 62.8
l 2.514
l
l
l 5.5
l2
l
±0.5
±0.25
64
2.560
7.3
10
0
±2.5
±1.25
±2.25
±1.25
65.2
2.606
±1.8
±1.6
9
±2
Bits
LSB
LSB
LSB
LSB
mV
V
%
%
Hz
MΩ
µA
l VCC2 – 0.8 VCC2 – 0.5 VCC2 – 0.3
l 0.3 0.5 0.8
l
l ±10
±80
l
l
0.3
0.3 •
•VVCCL2
0.7
0.7 •
•VVCCL2
V
V
µA
µA
V
V
For more information www.linear.com/LTM9100
9100f
5
5 Page 
Typical Performance Characteristics
LTM9100
TA = 25°C, unless otherwise noted.
Logic Output Voltage vs Load
Current
6
5
VL = 5.5V
4 VL = 3.3V
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10
LOAD CURRENT (mA)
9100 G19
ADC Total Unadjusted Error vs
Code (ADIN Pin)
1.0
0.5
0
–0.5
–1.0
0
256 512 768 1024
CODE
9100 G20
ADC INL vs Code (ADIN Pin)
1.0
ADC DNL vs Code (ADIN Pin)
1.0
0.5 0.5
00
–0.5 –0.5
ADC Full-Scale Error vs
Temperature (ADIN Pin)
3
2
1
0
–1
–2
–3
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
9100 G21
Input Current vs Shunt Regulator
Voltage
25
TA = –50°C
TA = 25°C
20 TA = 125°C
15
10
5
–1.0
0
256 512 768 1024
CODE
9100 G22
Power-On Sequence
VS
2.5V/DIV
VCC2
2.5V/DIV
ON
5V/DIV
60µs/DIV
–1.0
0
256
9100 G25
512
CODE
768 1024
9100 G23
0
9.8 10.2 10.6 11.0 11.4 11.8
SHUNT REGULATOR VOLTAGE AT VS (V)
9100 G24
Derating for 125°C Maximum
Internal Operating Temperature
500
450
400
350
300
250
200
150
100
50
0
0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
9100 G26
For more information www.linear.com/LTM9100
9100f
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LTM9100.PDF ] | |
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