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даташит MAX14900E PDF ( Datasheet )

MAX14900E Datasheet Download - Maxim Integrated

Номер произв MAX14900E
Описание Octal Power Switch
Производители Maxim Integrated
логотип Maxim Integrated логотип 



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MAX14900E Даташит, Описание, Даташиты
MAX14900E
EVALUATION KIT AVAILABLE
Octal, High-Speed, Industrial, High-Side Switch
General Description
The MAX14900E is an octal power switch that
features per-channel configuration for high-side or push-
pull operation. Low propagation delay, high-rate load-
switching makes the device suitable for next-generation
high-speed PLC systems. Each high-side switch sources
850mA continuous current with a low 165mΩ (max)
on-resistance at 500mA at TA = +125°C. The high-side
switches feature 2µs (max) input-to-output propagation
delay when driving resistive loads. Long cables can be
driven with switching rates of up to 100kHz for PWM/PPO
control in push-pull operation. Multiple high-side switches
can be connected in parallel to achieve higher drive
currents. The device features a wide supply input range
of 10V to 36V.
The MAX14900E is configured, monitored, and driven by
an SPI and/or parallel interface. In parallel mode, eight
logic inputs directly control the outputs and the serial
interface can be used for configuration/monitoring. Serial
mode utilizes the serial interface for both setting and
configuration, and features CRC error detection to ensure
robust SPI communication.
Current limiting and per-channel thermal shutdown
protect each switch/driver. The device features a global
diagnostics output as well as per-channel diagnostics and
monitoring through the serial interface.
The MAX14900E is available in a 48-pin (7mm x 7mm)
QFN-EP or standard 48-pin TQFN-EP package, and is
specified over the -40°C to +125°C temperature range.
Applications
● Programmable Logic Controllers
● High-Density Digital Output Modules
● Motor Controllers
● PWM/PPO Control
Ordering Information and Typical Operating Circuit appear
at end of data sheet.
Benefits and Features
● Low Power for High-Density Modules
3mA (max) Total Supply Current
165mΩ (max) High-Side RON at +125°C
● Fast Switching Ideal for Accurate, High-Speed
Control Systems
2µs Propagation Delays (High-Side Mode)
0.8µs Propagation Delays (Push-Pull Mode)
100kHz (max) Push-Pull Mode Switching Rate
● Extensive Fault Feedback Eases Maintenance and
Reduces Installation Time
• Global and Per-Channel Diagnostics
• Open Load/Wire Detection
• Thermal Shutdown Fault Indication
• Output Logic State Feedback
• Undervoltage Lockout
● Small Packages with Serial Interface Allows Making
High-Density Modules
• Daisy-Chainable SPI Minimizes Isolation Cost
7mm x 7mm, 48-Pin QFN and TQFN Packages
Functional Diagram
VL V5
VDD
FLTR
VL V5
VDD
VDD
PUSHPL
OL/IN1
UV MONITOR
DRIVE + MONITOR O8
EN
VDD
IN2
CRC/IN3
CERR/IN4
IN5
IN6
CNFG/IN7
PARALLEL
INTERFACE
MAX14900E
DRIVE + MONITOR O7
EN
VDD
DRIVE + MONITOR O6
EN
VDD
S16/IN8
SRIAL
CS
CLK
SDI
SDO
SERIAL
INTERFACE
CONFIG
AND
SETTING
DRIVE + MONITOR O5
EN
VDD
DRIVE + MONITOR O4
EN
VDD
DRIVE + MONITOR O3
EN
VDD
FAULT
REXT
EN
DIAGNOSTICS
OVERLOAD
OVERTEMP
OPEN LOAD
DRIVE + MONITOR O2
DRIVE + MONITOR O1
VDD
AGND
PGND
O8
O7
O6
O5
O4
O3
O2
O1
19-6563; Rev 4; 4/15







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MAX14900E Даташит, Описание, Даташиты
MAX14900E
Octal, High-Speed, Industrial, High-Side Switch
Absolute Maximum Ratings
(All voltages referenced to AGND = PGND.)
VDD.........................................................................-0.3V to +40V
O_.............................................................. -0.3V to (VDD + 0.3V)
V5, VL, FAULT, IN_, PUSHPL,
FLTR, SRIAL, CLK, SDI, CS, EN.........................-0.3V to +6V
REXT............................................................ -0.3V to (V5 + 0.3V)
SDO.............................................................. -0.3V to (VL + 0.3V)
Continuous Reverse Current (O_)........................................2.0A
Inductive Kickback Current (O_)...........................................1.9A
Continuous Current (Any Other Terminal).......................±100mA
Continuous Power Dissipation (TA = +70°C)
(derate 38.5mW/°C above +70°C).............................4400mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature........................................Internally Limited
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................+260°C
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)
Junction-to-Ambient Thermal Resistance (θJA)...............18°C/W
Junction-to-Case Thermal Resistance (θJC)......................1°C/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
(VDD = 10V to 36V, V5 = 4.5V to 5.5V, VL = 2.5V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDD = 24V,
V5 = 5V, VL = 3.3V, and TA = +25°C.) (Note 2)
PARAMETER
DC CHARACTERISTICS
VDD Supply Voltage
VDD Supply Current
VDD Disable Supply Current
VDD Undervoltage-Lockout
Threshold
VDD Undervoltage-Lockout
Hysteresis
V5 Supply Voltage
V5 Supply Current
V5 Undervoltage-Lockout
Threshold
V5 Undervoltage-Lockout
Hysteresis
V5 POR Threshold
VL Supply Voltage
VL Supply Current
VL POR Threshold
SYMBOL
CONDITIONS
VDD
IDD
IDD_DIS
VDD_
UVLO
VDD_
UVHYS
V5
I5
V5_UVLO
EN = high, O_ in push-pull mode
and unloaded
EN = high, O_ in high-side mode
and unloaded
EN = low
V5 = 5V, VDD rising
V5 = 5V
O_ in push-pull or high-side mode,
CS = high, DC output
VDD = 24V, V5 rising
V5_UVHYS
V5_POR
VL
IL
VL_POR
VDD = 24V
Logic inputs unconnected
MIN TYP MAX UNITS
10 36 V
0.7 1.5
0.7 1.5
mA
0.7 1.5
mA
7.0 7.8 8.5
V
2.5 V
4.5 5.5 V
0.9 1.5
mA
3.8 4 4.2 V
0.3
1.6 2.4
2.5 5.5
9 40
1.6 2.4
V
V
V
µA
V
www.maximintegrated.com
Maxim Integrated 2







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MAX14900E Даташит, Описание, Даташиты
MAX14900E
Octal, High-Speed, Industrial, High-Side Switch
Electrical Characteristics (continued)
(VDD = 10V to 36V, V5 = 4.5V to 5.5V, VL = 2.5V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDD = 24V,
V5 = 5V, VL = 3.3V, and TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
DRIVER OUTPUTS (O_)
High-Side Mode On-Resistance
High-Side Mode Current Limit
High-Side Mode Leakage
Current
RON_HS
ILIM_HS
ILKG_HS
High-side mode, EN = high, O_ = high,
IO_ = 500mA
High-side mode, EN = high, O_ = high
EN = low, VO_ = 0V
Push-Pull Mode On-Resistance
Push-Pull Current Limit
Current-Limit Autoretry Blanking
Time
Current-Limit Autoretry Off-Time
OPEN-LOAD DETECTION (O_)
RON_PP
ILIM_PP
tBLANK
tRETRY
Push-pull
mode,
EN = high
Push-pull
mode,
EN = high,
during blanking
time
IO_ = +50mA,
O_ = high
IO_ = -50mA, O_ = low
0V < VO_ < VDD - 3V,
O_ = high
3V < VO_ < VDD,
O_ = low
Push-pull mode, EN = high,
O_ connected to VDD or PGND
Push-pull mode, EN = high,
O_ connected to VDD or PGND
Open-Load Pullup Current
Open-Load and Status-Detect
Threshold
IOL
VTOL_
High-side mode, O_ = off,
0V < VO_ < (VDD – 2V), OL detect = on
EN = high, OL detect = on,
high-side mode, O_ = off
LOGIC INPUTS (IN_, PUSHPL, FLTR, SRIAL, CLK, SDI, CS, EN)
Input Logic-High Voltage
Input Logic-Low Voltage
VIH
VIL
Input Threshold Hysteresis
VITHYS
Input Pulldown/Pullup Resistor
RPULL
LOGIC OUTPUTS (FAULT, CERR/IN4, SDO)
Open-Drain Output Logic-Low
Voltage
VODL
Open-Drain Output Leakage
Current
ILKG_OD
SDO Output Logic-High Voltage
SDO Output Logic-Low Voltage
SDO Pulldown Resistor
VOH
VOL
RSDO
(Note 3)
ISINK = 5mA
SRIAL = high, output not asserted,
VOUT = 5.5V
ISOURCE = 5mA
ISINK = 5mA
CS = high
MIN TYP MAX
85 165
1.4 1.7 2.0
-1 +20
1.6
5.2
200 500
4
10
200 300
90
11
65 80 110
6.3 7 7.7
0.7 x VL
140
0.1 x
VL
200
0.3 x VL
270
0.33
-1
VL - 0.33
140 200
+1
0.33
270
UNITS
mΩ
A
µA
mA
µs
ms
µA
V
V
V
V
kΩ
V
µA
V
V
kΩ
www.maximintegrated.com
Maxim Integrated 3










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