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MAX15068 데이터시트 PDF




Maxim Integrated Products에서 제조한 전자 부품 MAX15068은 전자 산업 및 응용 분야에서
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부품번호 MAX15068 기능
기능 Single Hot-Swap Controller
제조업체 Maxim Integrated Products
로고 Maxim Integrated Products 로고


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MAX15068 데이터시트, 핀배열, 회로
MAX15068
EVALUATION KIT AVAILABLE
Dual ORing, Single Hot-Swap Controller with
Accurate Current Monitoring
General Description
The MAX15068 offers ORing function and hot-swap
features for two input-supply-rail applications requiring the
safe insertion and removal of circuit line cards from a live
backplane. The device integrates dual ORing MOSFET
controllers, a single hot-swap controller, electronic circuit-
breaker protection, and power monitoring in a single
package. The device is designed to operate from 3.7V to
18V supply voltages.
The device regulates the forward voltage drop across the
ORing MOSFETs to ensure smooth current transfer from
one supply to the other without oscillation. The ORing
MOSFET turns on quickly to reduce the load voltage droop
during supply switchover. If the input supply fails or is short-
ed, a fast turn-off minimizes reverse-current transients.
The device implements a foldback current limit during hot-
swap startup in order to control inrush current, thereby
lowering di/dt and keeping the operation of the hot-swap
MOSFET under safe operating area (SOA). An internal
70ms timer starts counting when the device enters the
hot-swap startup phase. After the hot-swap startup cycle
is completed, on-chip comparators provide active current-
limit protection against short-circuit and overcurrent faults.
The load is disconnected from the input quickly in the
event of a fault condition.
The device provides current monitoring from 3A to 10A
(VIN = 12V, TA = +25°C with RSENSE = 3mΩ) with ±0.6%
accuracy. A voltage proportional to the input current
delivered to the system could be read directly at the
IPMON pin.
The device is factory-calibrated to deliver accurate
overcurrent protection with ±5% accuracy. During an
overcurrent-fault condition, the device enters an autoretry
mode. The device features an adjustable slew-rate control
during startup. Additional features include power-good
and fault-indicator outputs.
The MAX15068 is available in a 20-pin, (4mm x 5mm)
TQFN package and is specified from a -40°C to +125°C
operating temperature range.
Features and Benefits
● 3.7V to 18V Operating Voltage Range (ORing and
Hot Swap)
● 4.8V to 18V Operating Voltage Range (Current
Monitor)
● Seamless Power Transition of Redundant Supplies
● Controls N-Channel MOSFETs
● < 0.5µs Turn-On and Reverse Turn-Off Time
Current Monitoring (±0.6% Accuracy Typ)
● Programmable Slew-Rate Control
Adjustable Current-Limit Fault Delay
● Programmable Circuit-Breaker Current Threshold
● Inrush Current Regulated at Startup with
Programmable SOA Control
● Programmable Undervoltage Lockout
● Small (4mm x 5mm) TQFN Package
Applications
● Baseband Station
● Redundant Power Supplies
● Supply Holdup
● Computer Systems and Servers
● Telecom Networks
● Storage Bridge Bay
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer
to www.maximintegrated.com/MAX15068.related.
19-6872; Rev 0; 12/13
Free Datasheet http://www.datasheet4u.com/




MAX15068 pdf, 반도체, 판매, 대치품
MAX15068
Dual ORing, Single Hot-Swap Controller with
Accurate Current Monitoring
Electrical Characteristics (continued)
(VIN1 = VIN2 = 12V, CIN1 = CIN2 = CVS = 1µF, TA = -40°C to +125°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
Maximum FB Voltage
CURRENT-SENSING INPUT
CSP Input Current
CSN Input Current
CDLY
CDLY Upper Threshold
CDLY Lower Threshold
Hysteresis
CDLY Pullup Current
CDLY Pulldown Current
CDLY Ratio
POWER-GOOD (PG)
PG Threshold OUT
PG Threshold GATE
PG Detection Timeout
PG Assertion Delay
OUTPUTS (FAULT, PG)
FAULT, PG Output Voltage Low
FAULT, PG Output Voltage High
FAULT, PG Leakage Current
FAULT, PG Pullup Current
INPUTS
ON, PC, EN Turn-On Threshold
ON, PC, EN Turn-On Threshold
Hysteresis
ON Fault Reset Threshold
Voltage
ON, PC Input Leakage Current
ON, PC Clamp Voltage
ON, PC Clamp Sink
EN Pullup Current
CB THREE-STATE INPUT
CB Input Low Current
CB Input High Current
SYMBOL
VFBMAX
CONDITIONS
VCSP - VOUT, at VCB = VCB_TH
ICSP
ICSN
VCSP = 12V
VCSN = 12V
VCDLY_U
VCDLY rising
VCDLY_L
VCDLY falling
ICDLY_UP
ICDLY_DOWN
ICDLY_RATIO
VPG_OUT
VPG_GATE
tPG_STARTUP
tPG_DELAY
VGATE > (5V + VOUT)
VGATE - VOUT
VOL
VOH
IOH
IPU
IPG = IFAULT = 1mA
IPG = IFAULT = 1µA
VPG = VFAULT = 18V
VPG = VFAULT = 1.5V
VON_TH
VON_HYS
VON, VPC , VEN rising
VON, VPC , VEN falling
VON_RESET
ILEAK
IPU
VON falling
VON, VPC = 0 to 2.5V
ISINK = 1µA
VON, VPC = 5V
VEN = 0V
IIN_LOW
IIN_HIGH
VCB = 0.4V
VCB = VS - 0.2V
MIN TYP MAX UNITS
9 10 11 V
0.5 1.0
100 200 400
mA
µA
1.1 1.2
0.2
-132 -100
1.2 2
1.4 2
1.3
-70
2.8
3.2
V
V
µA
µA
%
0.9 x VCSP
4.2
55 70 85
13 16 19
V
V
ms
ms
VS - 1
-1
-13
VS - 0.6
-10
0.4
+20
-7
V
V
µA
µA
1.1 1.22 1.32
V
70 123 180 mV
0.5 0.6 0.7
-1 +1
3
350
-13 -10
-7
V
µA
V
µA
µA
-75 µA
+75 µA
www.maximintegrated.com
Maxim Integrated 4
Free Datasheet http://www.datasheet4u.com/

4페이지










MAX15068 전자부품, 판매, 대치품
MAX15068
Dual ORing, Single Hot-Swap Controller with
Accurate Current Monitoring
Typical Operating Characteristics (continued)
(VIN1 = VIN2 = 12V, CIN1 = CIN2 = CVS = 1µF, RSENSE = 3mΩ, unless otherwise noted.)
ACTIVE CURRENT-LIMIT DELAY
vs. SENSE VOLTAGE
100 toc09
10 CB = Hi-Z
1 CB = VS
0.1 CB = GND
0.01
0
50 100 150 200 250
SENSE VOLTAGE (VCSP - VCSN) (mV)
300
PG, FAULT OUTPUT LOW VOLTAGE
vs. CURRENT
50 toc10
40
30
20
10
0
0 2 4 6 8 10
CURRENT (mA)
CDLY PULLUP CURRENT
vs. TEMPERATURE
140 toc11
120
100
80
60
40
-40 -15 10 35 60 85 110 125
TEMPERATURE (ºC)
GATE PULLUP CURRENT
vs. TEMPERATURE
20 toc12
15
10
5
0
-40 -15 10 35 60 85 110 125
TEMPERATURE (ºC)
IMON OUTPUT ACCURACY
5
(TA = -40ºC)
toc13
VIN_ = 4.5V
0 VIN_ = 12V
VIN_ = 12V
-5 VIN_ = 18V
-10
VIN_ = 18V
VIN_ = 4.5V
-15
-20
0 2 4 6 8 10 12
CURRENT (A)
IMON OUTPUT ACCURACY
5
(TA = +25ºC)
toc14
VIN_ = 4.5V
VIN_ = 12V or 18V
0
-5 VIN_ = 12V
VIN_ = 18V
VIN_ = 4.5V
-10
-15
-20
0 2 4 6 8 10 12
CURRENT (A)
IMON OUTPUT ACCURACY
5
(TA = +85ºC)
toc15
VIN_ = 4.5V
VIN_ = 12V or 18V
0
-5 VIN_ = 12V
VIN_ = 4.5V
-10
VIN_ = 18V
-15
-20
0 2 4 6 8 10 12
CURRENT (A)
IMON OUTPUT ACCURACY
5
(TA = +125ºC)
toc16
VIN_ = 4.5V
VIN_ = 12V or 18V
0
-5 VIN_ = 18V
VIN_ = 4.5V
-10
VIN_ = 12V
-15
-20
0 2 4 6 8 10 12
CURRENT (A)
www.maximintegrated.com
Maxim Integrated 7
Free Datasheet http://www.datasheet4u.com/

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