Maxim MAX14595 Low-power dual-channel logic-level translator Datasheet

EVALUATION KIT AVAILABLE
MAX14595
Low-Power Dual-Channel Logic-Level Translator
S Meets Industry Standards
General Description
 I2C Requirements for Standard, Fast, and High*
Speeds
 MDIO Open Drain Above 4MHz*
The MAX14595 is a dual-channel, bidirectional logiclevel translator designed specifically for low power
consumption making it suitable for portable and batterypowered equipment. Externally applied voltages, VCC
and VL, set the logic levels on either side of the device. A
logic signal present on the VL side of the device appears
as the same logic signal on the VCC side of the device,
and vice-versa.
S Allows Greater Design Flexibility
 Down to 0.9V Operation on VL Side
 Supports Above 8MHz Push-Pull Operation
S Ultra-Low Power Consumption
 7µA VCC Supply Current
 3µA VL Supply Current
S Provides High Level of Integration
The device is optimized for the I2C bus as well as the
management data input/output (MDIO) bus where often
high-speed, open-drain operation is required. When TS
is high, the device allows the pullup to be connected to
the I/O port that has the power. This allows continuous
I2C operation on the powered side without any disruption
while the level translation function is off.
 Pullup Resistor Enabled with One Side Power
Supply when TS Is High
 12kI (max) Internal Pullup
 Low Transmission Gate RON: 17I (max)
S Saves Space
 8-Bump, 0.4mm Pitch, 0.8mm x 1.6mm WLP
Package
 8-Pin, 2mm x 2mm TDFN Package
The part is specified over the extended -40NC to +85NC
temperature range, and is available in 8-bump WLP and
8-pin TDFN packages.
Applications
*Requires external pullups.
Portable and Battery-Powered Electronics
Ordering Information appears at end of data sheet.
Devices with I2C Communication
Devices with MDIO Communication
For related parts and recommended products to use with this part,
refer to www.maximintegrated.com/MAX14595.related.
General Logic-Level Translation
Benefits and Features
Typical Operating Circuit
VCC = +3.0V
VL = +1.2V
1µF
0.1µF
+1.2V
SYSTEM
CONTROLLER
EN
TS
VL
*
SDA
VCC
VL
*
MAX14595
IOVL1
IOVCC1
VL
SLK
SDA
VCC
*
GND
+3V
SYSTEM
VCC
*
IOVL2
GND
IOVCC2
SLK
GND
* PULLUPS ARE OPTIONAL FOR HIGH-SPEED, OPEN-DRAIN OPERATION.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6170; Rev 0; 12/11
MAX14595
Low-Power Dual-Channel Logic-Level Translator
ABSOLUTE MAXIMUM RATINGS
TS Maximum Continuous Current at +110NC......................70mA
Continuous Power Dissipation (TA = +70NC)
TDFN (derate 6.2mW/NC above +70NC).......................496mW
WLP (derate 11.8mW/NC above +70NC)......................944mW
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (TDFN only, soldering, 10s)..............+300NC
Soldering Temperature (reflow).......................................+260NC
Voltages referenced to GND.
VCC, VL, TS..............................................................-0.5V to +6V
IOVCC1, IOVCC2.................................... -0.5V to +(VCC + 0.5V)
IOVL1, IOVL2............................................. -0.5V to +(VL + 0.5V)
Short-Circuit Duration IOVCC1, IOVCC2,
IOVL1, IOVL2 to GND............................................Continuous
VCC, IOVCC_ Maximum Continuous Current at +110NC.....100mA
VL IOVL_ Maximum Continuous Current at +110NC...........40mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
WLP
Junction-to-Ambient Thermal Resistance (BJA)...........85NC/W
TDFN
Junction-to-Ambient Thermal Resistance (BJA).........162NC/W
Junction-to-Case Thermal Resistance (BJC)................20NC/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VCC = +1.65V to +5.5V, VL = +0.9V to min(VCC + 0.3V, +3.6V), TA = -40NC to +85NC, unless otherwise noted. Typical values are at
VCC = +3V, VL = +1.2V, and TA = +25NC.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY
Power Supply Range
VCC Supply Current
VL Supply Current
VCC Shutdown Supply Current
VL
0.9
5.5
VCC
1.65
5.5
ICC
IL
ICC-SHDN
VL Shutdown Supply Current
IL-SHDN
IOVCC_, IOVL_ Three-State
Leakage Current
ILEAK
IOVCC_ = VCC, IOVL_ = VL, TS = VCC
7
15
FA
IOVCC_ = VCC, IOVL_ = VL, TS = VCC
3
6
FA
TS = GND
0.4
1
TS = VCC, VL = GND, IOVCC_ = unconnected
0.4
1
TS = GND
0.1
1
TS = VL, VCC = GND, IOVL_ = unconnected
0.1
1
TA = +25NC, TS = GND
0.1
1
FA
1
FA
TS Input Leakage Current
ILEAK_TS
TA = +25NC
VCC Shutdown Threshold
VTH_VCC
TS = VL, VCC falling
VL Shutdown Threshold
VL Above VCC Shutdown
Threshold
IOVL_ Pullup Resistor
IOVCC_ Pullup Resistor
IOVL_ to IOVCC_ DC
Resistance
Maxim Integrated
VTH_VL
V
TS = VCC, VL falling, VL = 0.9V
VTH_VL-VCC VL rising above VCC, VCC = +1.65V
FA
FA
0.8
1.35
V
0.25
0.6
0.86
V
0.4
0.73
1.1
V
RVL_PU
Inferred from VOHL measurements
3
7.6
12
kI
RVCC_PU
Inferred from VOHC measurements
3
7.6
12
kI
6
17
I
RIOVL-IOVCC Inferred from VOLx measurements
2
MAX14595
Low-Power Dual-Channel Logic-Level Translator
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +1.65V to +5.5V, VL = +0.9V to min(VCC + 0.3V, +3.6V), TA = -40NC to +85NC, unless otherwise noted. Typical values are at
VCC = +3V, VL = +1.2V, and TA = +25NC.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC LEVELS
IOVL_ Input-Voltage High
VIHL
IOVL_ rising, VL = +0.9V, VCC = +1.65V
(Note 4)
IOVL_ Input-Voltage Low
VILL
IOVL_ falling, VL = +0.9V, VCC = +1.65V
(Note 4)
IOVCC_ Input-Voltage High
VIHC
IOVCC_ rising, VL = +0.9V, VCC = +1.65V
(Note 4)
IOVCC_ Input-Voltage Low
VILC
IOVCC_ falling, VL = +0.9V, VCC = +1.65V
(Note 4)
TS Input-Voltage High
VIH
TS rising, VL = +0.9V or +3.6V, VCC > VL
TS Input-Voltage Low
VIL
V
0.15
VCC - 0.4
IOVL_ source current 20FA, VIOVCC_ = VL to
VCC (VCC R VL)
IOVL_ Output-Voltage Low
VOLL
IOVL_ sink current 5mA, VIOVCC_ P 0.05V
IOVCC_ Output-Voltage High
VOHC
IOVCC_ source current 20FA, VIOVL_ = VL
IOVCC_ Output-Voltage Low
VOLC
IOVCC_ sink current 5mA, VIOVL_ P 0.05V
V
V
0.2
VL - 0.15
V
V
0.2
TS falling, VL = +0.9V or +3.6V, VCC > VL
VOHL
IOVL_ Output-Voltage High
VL - 0.2
0.7 x VL
V
V
0.2
0.7 x VCC
V
V
0.25
V
48
ns
RISE/FALL TIME ACCELERATOR STAGE
Accelerator Pulse Duration
VL = +0.9V, VCC = +1.65V
9
22
IOVL_ Output Accelerator
Source Impedance
VL = +0.9V, IOVL_ = GND, VCC = +1.65V
26
VL = +3.3V, IOVL_ = GND, VCC = +5V
6.8
IOVCC_ Output Accelerator
Source Impedance
VCC = +1.65V, IOVCC_ = GND
26
VCC = +5V, IOVCC_ = GND
6.5
I
I
THERMAL PROTECTION
Thermal Shutdown
TSHDN
+150
NC
Thermal Hysteresis
THYST
10
NC
Maxim Integrated
3
MAX14595
Low-Power Dual-Channel Logic-Level Translator
TIMING CHARACTERISTICS
(VCC = +1.65V to +5.5V, VL = +0.9V to +3.6V, VCC R VL, TS = VL, CVCC = 1FF, CVL = 0.1FF, CIOVL_ P 100pF, CIOVCC_ P 100pF,
TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +3V, VL = +1.2V and TA = +25NC. All timing is 10% to 90%
for rise time and 90% to 10% for fall time.) (Note 5)
PARAMETER
SYMBOL
Turn-On Time for Q1
tON
IOVCC_ Rise Time
tRCC
IOVCC_ Fall Time
IOVL_ Rise Time
IOVL_ Fall Time
tFCC
tRL
tFL
CONDITIONS
MIN
VTS = 0V to VL (see the Block Diagram)
Push-pull driving, VL = +1.2V, VCC = +3V
(Figure 1)
TYP
MAX
UNITS
160
400
Fs
8
22
ns
Open-drain driving, VL = +1.2V, VCC = +3V
(Figure 2)
11
Push-pull driving, VL = +1.2V, VCC = +3V
(Figure 1)
5
Open-drain driving, VL = +1.2V, VCC = +3V
(Figure 2)
6
Push-pull driving, VL = +1.2V, VCC = +3V
(Figure 3)
4
Open-drain driving, VL = +1.2V, VCC = +3V
(Figure 4)
16
Push-pull driving, VL = +1.2V, VCC = +3V
(Figure 3)
2.8
Open-drain driving, VL = +1.2V, VCC = +3V
(Figure 4)
3.3
15
ns
13
ns
12
ns
Propagation Delay
(Driving IOVL_)
tPD_LCC
Push-pull driving,
Rising
VL = +1.2V, VCC = +3V
Falling
(Figure 1)
7.6
19
3
9
Propagation Delay
(Driving IOVCC_)
tPD_CCL
Push-pull driving,
Rising
VL = +1.2V, VCC = +3V
Falling
(Figure 3)
3
5
1.5
7
Channel-to-Channel Skew
Maximum Data Rate
tSKEW
Input rise time/fall time < 6ns
1.5
Push-pull operation
8
Open-drain operation (Note 6)
4
ns
ns
ns
MHz
Note 2: All devices are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by
design and not production tested.
Note 3: VL must be less than or equal to VCC during normal operation. However, VL can be greater than VCC during startup and
shutdown conditions.
Note 4: VIHL, VILL, VIHC, and VILC are intended to define the range where the accelerator triggers.
Note 5: Guaranteed by design.
Note 6: External pullup resistors are required.
Maxim Integrated
4
MAX14595
Low-Power Dual-Channel Logic-Level Translator
VL
VCC
VL
VCC
TS
RS
50I
MAX14595
IOVL_
VCC
VL
VCC
TS
IOVCC_
GND
10%
10%
10%
10%
tPD_CCL
tPD_LCC
Figure 1. Push-Pull Driving IOVL_
tPD_CCL
Figure 3. Push-Pull Driving IOVCC_
VL
VCC
VL
VCC
1kI
1kI
MAX14595
IOVL_
RDSON
5I
50%
50%
50%
tPD_LCC
90%
90% 50%
50%
50%
50%
TS
tFL
tRL
90%
50%
1kI
RS
50I
IOVCC_
CL
20pF
tFCC
tRCC
MAX14595
IOVL_
CL
20pF
GND
90%
VL
VL
VCC
CL
20pF
tFCC
1kI
MAX14595
IOVL_
GND
90%
VCC
TS
IOVCC_
tRCC
VL
IOVCC_
RDSON
5I
GND
CL
20pF
tRL
tFL
90%
90%
50%
90%
50%
50%
50%
10%
10%
tPD_CCL
tPD_LCC
Figure 2. Open-Drain Driving IOVL_
Maxim Integrated
tPD_LCC
10%
10%
tPD_CCL
Figure 4. Open-Drain Driving IOVCC_
5
MAX14595
Low-Power Dual-Channel Logic-Level Translator
Typical Operating Characteristics
(VCC = +3V, VL = +1.5V, RL = 1MI, CL = 15pF, push-pull driving data rate = 8Mbps, TA = +25NC, unless otherwise noted.)
200
200
800
140
120
100
80
60
120
100
80
60
40
20
20
2.20
2.75
3.30
3.85
4.40
4.95
5.50
600
500
400
300
200
100
0
1.65
0
1.65
2.20
2.75
3.30
3.85
4.40
4.95
0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
5.50
VCC (V)
VCC (V)
VL (V)
VCC DYNAMIC SUPPLY CURRENT vs. VL SUPPLY
VOLTAGE (OPEN-DRAIN DRIVING ONE IOVCC_)
VL DYNAMIC SUPPLY CURRENT vs. TEMPERATURE
(OPEN-DRAIN DRIVING ONE IOVL_)
VL DYNAMIC SUPPLY CURRENT vs. TEMPERATURE
(PUSH-PULL DRIVING ONE IOVCC_)
500
400
300
200
100
0
160
140
120
100
80
60
200
180
160
140
120
100
80
60
40
40
20
20
0
0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
MAX14595 toc06
VL SUPPLY CURRENT (µA)
600
180
VL SUPPLY CURRENT (µA)
700
MAX14595 toc05
200
MAX14595 toc04
800
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
VL DYNAMIC SUPPLY CURRENT vs. CAPACITIVE
LOAD (OPEN-DRAIN DRIVING ONE IOVL_)
VCC DYNAMIC SUPPLY CURRENT vs. CAPACITIVE
LOAD (PUSH-PULL DRIVING ONE IOVL_)
RISE/FALL TIME vs. CAPACITIVE LOAD
(PUSH-PULL DRIVING ONE IOVL_)
160
140
120
100
80
60
40
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0
0
0
20
40
60
CAPACITIVE LOAD (pF)
Maxim Integrated
80
100
RS = 50Ω
30
25
tFCC
20
15
10
tRCC
5
0.2
20
35
RISE/FALL TIME (ns)
180
VCC SUPPLY CURRENT (mA)
MAX14595 toc07
200
MAX14595 toc09
VL (V)
MAX14595 toc08
VCC SUPPLY CURRENT (µA)
700
140
40
0
VL SUPPLY CURRENT (µA)
160
VCC SUPPLY CURRENT (µA)
160
180
VL SUPPLY CURRENT (µA)
VL SUPPLY CURRENT (µA)
180
MAX14595 toc03
VCC DYNAMIC SUPPLY CURRENT vs. VL SUPPLY
VOLTAGE (PUSH-PULL DRIVING ONE IOVL_)
MAX14595 toc02
VL DYNAMIC SUPPLY CURRENT vs. VCC SUPPLY
VOLTAGE (PUSH-PULL DRIVING ONE IOVCC_)
MAX14595 toc01
VL DYNAMIC SUPPLY CURRENT vs. VCC SUPPLY
VOLTAGE (OPEN-DRAIN DRIVING ONE IOVL_)
0
0
20
40
60
CAPACITIVE LOAD (pF)
80
100
0
20
40
60
80
100
CAPACITIVE LOAD (pF)
6
MAX14595
Low-Power Dual-Channel Logic-Level Translator
Typical Operating Characteristics (continued)
(VCC = +3V, VL = +1.5V, RL = 1MI, CL = 15pF, push-pull driving data rate = 8Mbps, TA = +25NC, unless otherwise noted.)
tPD_LCC_RISE
10
8
6
tFL
10
8
6
4
tRL
4
tPD_LCC_FALL
2
2
0
20
40
60
80
100
6
tPD_CCL_FALL
5
4
3
2
tPD_CCL_RISE
0
20
0
CAPACITIVE LOAD (pF)
40
60
80
100
0
CAPACITIVE LOAD (pF)
20
40
80
100
MAX14595 toc14
MAX14595 toc13
9
8
7
6
60
CAPACITIVE LOAD (pF)
RAIL-TO-RAIL DRIVING (PUSH-PULL DRIVING ONE IOVL_)
(VL = +1.5V, VCC = +3.3V, CL = 15pF, RL = 1MΩ, RS = 50Ω)
RIOVL-IOVCC vs. VL
RIOVL-IOVCC (Ω)
RS = 50Ω
7
1
0
0
8
MAX14595 toc12
12
RISE/FALL TIME (ns)
PROPAGATION DELAY (ns)
12
RS = 50Ω
14
PROPAGATION DELAY vs. CAPACITIVE LOAD
(PUSH-PULL DRIVING ONE IOVCC_)
PROPAGATION DELAY (ns)
RS = 50Ω
14
16
MAX14595 toc10
16
RISE/FALL TIME vs. CAPACITIVE LOAD
(PUSH-PULL DRIVING ONE IOVCC_)
MAX14595 toc11
PROPAGATION DELAY vs. CAPACITIVE LOAD
(PUSH-PULL DRIVING ONE IOVL_)
IOVL_
1V/div
VCC = 1.65V
5
VCC = 3.3V
4
VCC = 5.5V
3
IOVCC_
1V/div
2
VIOVL_ = 0.05V
IIOVCC_ = 3.3mA
1
0
0
1
2
3
4
5
6
40ns/div
VL (V)
RAIL-TO-RAIL DRIVING (OPEN-DRAIN DRIVING ONE IOVL_)
(VL = +1.5V, VCC = +3.3V, CL = 100pF, RL = 50Ω,
RS = 50Ω, PULLUP ON IOVL_/IOVCC_ = 1kΩ)
MAX14595 toc15
EXITING SHUTDOWN MODE
(VL = 1.2V, VCC = 3.0V, IOVCC_ = 0V,
CL = 100pF, RPU_VL = 50Ω)
MAX14595 toc16
IOVL_
1V/div
TS
500mV/div
IOVL_
500mV/div
IOVCC_
1V/div
40ns/div
Maxim Integrated
40µs/div
7
MAX14595
Low-Power Dual-Channel Logic-Level Translator
Pin Configurations
TOP VIEW
VCC
BUMPS ON BOTTOM
8
IOVCC2 IOVCC1
7
6
GND
5
MAX14595
3
2
4
+
1
MAX14595
A
VL
IOVL2
IOVL1
TS
B
VCC
IOVCC2 IOVCC1
GND
WLP
+
1
2
3
4
VL
IOVL2
IOVL1
TS
TDFN
Pin Description
BUMP/PIN
NAME
FUNCTION
WLP
TDFN
A1
1
VL
A2
2
IOVL2
A3
3
IOVL1
A4
4
TS
Active Low Three-State Input. Drive TS low to place the device in shutdown mode with
high-impedance output and internal pullup resistors disconnected. Drive TS high for normal
operation.
B1
8
VCC
Power-Supply Voltage, +1.65V to +5.5V. Bypass VCC to GND with a 1FF ceramic capacitor
as close as possible to the device.
B2
7
IOVCC2
B3
6
IOVCC1
B4
5
GND
Maxim Integrated
Logic Supply Voltage, +0.9V to min(VCC + 0.3V, +3.6V). Bypass VL to GND with a 0.1FF
ceramic capacitor as close as possible to the device.
Input/Output 2. Reference to VL.
Input/Output 1. Reference to VL.
Input/Output 2. Reference to VCC.
Input/Output 1. Reference to VCC.
Ground
8
MAX14595
Low-Power Dual-Channel Logic-Level Translator
Block Diagram
VL
VCC
TS
MAX14595
ONE-SHOOT
BLOCK
ONE-SHOOT
BLOCK
EN CONTROL
BLOCK
GATE
DRIVE
IOVL_
IOVCC_
N
Detailed Description
The MAX14595 is a dual-channel, bidirectional level translator. The device translates low voltage down to +0.9V on
the VL side to high voltage on the VCC side and vice-versa. The device is optimized for open-drain and high-speed
operation, such as I2C bus and MDIO bus.
The device has low on-resistance (17I max), which
is important for high-speed, open-drain operation. The
device also features internal pullup resistors that are
active when the corresponding power is on and TS is high.
Level Translation
For proper operation, ensure that +1.65V P VCC P +5.5V,
and +0.9V P VL P VCC. When power is supplied to VL
while VCC is less than VL, the device automatically
disables logic-level translation function. Also, the device
enters shutdown mode when TS = GND.
High-Speed Operation
The device meets the requirements of high-speed I2C
and MDIO open-drain operation. The maximum data rate
is at least 4MHz for open-drain operation with the total
bus capacitance equal to or less than 100pF.
Maxim Integrated
Q1
Three-State Input TS
The device features a three-state input that can put the
device into high-impedance mode. When TS is low,
IOVCC_ and IOVL_ are all high impedance and the internal pullup resistors are disconnected. When TS is high,
the internal pullup resistors are connected when the
corresponding power is in regulation, and the resistors
are disconnected at the side that has no power on. In
many portable applications, one supply is turned off but
the other side is still operating and requires the pullup
resistors to be present. This feature eliminates the need
for external pullup resistors. The level translation function
is off until both power supplies are in range.
Thermal-Shutdown Protection
The device features thermal-shutdown protection to
protect the part from overheating. The device enters
thermal shutdown when the junction temperature exceeds
+150NC (typ), and the device is back to normal operation
again after the temperature drops by approximately 10NC
(typ). When the device is in thermal shutdown, the level
translator is disabled.
9
MAX14595
Low-Power Dual-Channel Logic-Level Translator
Package Information
Ordering Information
PART
TOP MARK
PIN-PACKAGE
MAX14595ETA+T
BNT
8 TDFN
MAX14595EWA+T
AAE
8 WLP
Note: All devices are specified over -40°C to +85°C operating
temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Chip Information
PROCESS: BiCMOS
Maxim Integrated
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 TDFN
T822CN+1
21-0487
90-0349
8 WLP
W80A1+1
21-0555
Refer to
Application
Note 1891
10
MAX14595
Low-Power Dual-Channel Logic-Level Translator
Revision History
REVISION
NUMBER
REVISION
DATE
0
12/11
DESCRIPTION
Initial release
PAGES
CHANGED
—
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
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