Details

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BUY LMD18245T/NOPB https://www.utsource.net/itm/p/835303.html
LMD18245 3A, 55V DMOS Full-Bridge Motor Driver; Package: TO-220; No of Pins: 15; Qty per Container: 20/Rail

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Continuous Operation	5.5	-	45	V
Quiescent Current	Iq	No Load, Vcc = 5V	-	150	-	mA
Peak Output Current	Iout (peak)	Pulse Width Modulation, Vcc = 45V	-	-	3	A
Continuous Output Current	Iout (cont)	Continuous Operation, Vcc = 45V	-	-	2	A
Thermal Shutdown Temperature	TSD	-	160	-	170	°C
Operating Junction Temperature	TJ(op)	-	-40	-	150	°C
Storage Temperature	TSTG	-	-65	-	150	°C
Power Dissipation	PD	θJA = 62°C/W	-	-	1.5	W
Input High Voltage	VIH	-	2.0	-	5.5	V
Input Low Voltage	VIL	-	0.8	-	2.0	V
Input Current	IIN	Vcc = 5V	-	10	-	μA
Short-Circuit Protection	-	Active, Self-Limiting	-	-	-	-

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_cc) is within the range of 5.5V to 45V.
   • Use a power supply capable of providing sufficient current to meet the peak and continuous output current requirements.

2. Current Limiting:

   • The LMD18245T has built-in current limiting to protect against overcurrent conditions.
   • For continuous operation, do not exceed 2A of output current.

3. Thermal Management:

   • Monitor the junction temperature (T_J) to ensure it does not exceed 150°C.
   • Use appropriate heatsinking to manage power dissipation, especially when operating at higher currents or in high ambient temperatures.

4. Input Signals:

   • Apply input signals with voltages between 0.8V and 5.5V to control the motor driver.
   • Ensure the input current does not exceed 10μA to avoid damage to the input pins.

5. Short-Circuit Protection:

   • The device includes short-circuit protection, which will limit the current and prevent damage in case of a short circuit.
   • If a short circuit occurs, the device will automatically shut down and reset once the fault is cleared.

6. Thermal Shutdown:

   • The device will shut down if the internal temperature exceeds 160°C to 170°C.
   • Allow the device to cool before resuming operation.

7. Storage and Handling:

   • Store the device in a temperature range of -65°C to 150°C.
   • Handle with care to avoid static discharge, which can damage the device.

8. Mounting:

   • Mount the device on a PCB with adequate thermal management to ensure reliable operation.
   • Follow recommended PCB layout guidelines to minimize parasitic inductance and capacitance.

(For reference only)