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L9945
L9945
761-L9945
64-TQFP Exposed Pad
3.8V~5.5V 4.5V~36V Specialized Power Management ICs
In Stock : 999
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Product Details
Purchasing and Inquiry
The L9945 is an eight-channel MOSFET pre-driver with low-side, high-side, peak-and-hold, and H-Bridge load management options. The L9945 driver is built to meet the needs of 12 V (passenger vehicle) and 24 V (commercial vehicle) battery systems.The L9945 MOSFET has the ability to control two H-Bridges independently. The device can also drive two loads, which necessitates the use of a "peak & hold" control method.
L9945 Features
?AEC-Q100 qualified
?12V and 24V battery systems compliance
?3.3V and 5V logic compatible I/O
?8-channel configurable MOSFET pre-driver
oHigh-side (N-channel and P-channel MOS)
oLow-side (N-channel MOS)
oH-bridge (up to 2 H-bridge)
oPeak & Hold (2 loads)
?Operating battery supply voltage 3.8V to 36V
?Operating VDD supply voltage 4.5V to 5.5V
?All device pins, except the ground pins, withstand at least 40V
?Individual diagnosis for:
oShort circuit to battery
oOpen load
oShort circuit to ground
?Highly flexible overcurrent sensing implementation
oPossibility of monitoring external MOS drain to source voltage
oPossibility of monitoring voltage on external shunt resistor
o64 programmable overcurrent thresholds independent for each channel
oUltra-fast output shutdown in case of overcurrent
?Current limitation for H-Bridge configuration
?Programmable gate charge/discharge currents for improving EMI behavior
?32-bit SPI protocol available for configuration and diagnostics
oFailures latched even if they occur during diagnostics reading
oDaisy chain operation
oSDO protected against overvoltage
?Safety features
oFast switch off redundant output disable through two external pins
oBuilt In Self Test (BIST) for logic operation
oHardware Self Check (HWSC) for VDD5 overvoltage comparator
oConfigurable Communication Check (CC) watchdog timer available
oDisable feedback through bi-directional pin
oHighly redundant output monitoring through dedicated SPI registers
?10-bit ADC for battery and die temperature measurements available through SPI
?VDD5 monitoring for over/under voltage
?VPS (battery) monitoring for under voltage
L9945 Applications
Motor speed and motion control for off-axis applications
Replacement of linear and rotary optical sensor systems
Control of XYZ-tables
Robotic systems
Immune to external magnetic stray fields
You can send an inquiry by email, or add the item to the RFQ list and submit it to us.
Tell us the model and quantity you need, our sales staff will reply the price in time.
Email for receiving inquiries: jindawei@hkjdwchip.com
For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.
3. RFQ (Request for Quotations)It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.
1. You'll receive an order information email in your inbox. (Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.
Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and country.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
Delivery TimeOnce the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
The following are some common countries' logistic time.
Payment Method
| The fee is charged according to the rule of PayPal. | |
| East West Bank charge US$30.00 banking fee. | |
| The fee is charged according to the rule of PayPal. | |
| Western Union charge US$0.00 banking fee. |
Shipping
| DHL(www.dhl.com) From $40.00 basic shipping fee depend on zone and country. |
|
| UPS(www.ups.com) From $40.00 basic shipping fee depend on zone and country. |
|
| FedEx(www.fedex.com) From $40.00 basic shipping fee depend on zone and country. |
|
| Registered Mail(www.singpost.com) From $10.00 basic shipping fee depend on different zone and country. |
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L9945
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