Other Parts Discussed in Thread: L293D , DRV8816 , DRV8871 , DRV8870 , DRV8801 , DRV8872 , DRV8841 , DRV8844 Hi,
I am looking for an Integrated Motor Drive solution for out DC motor. The Specs are simple, the motors are 12 V DC motor with 1.8A RMS current…
Hi LouEEEE!,
The DRV8837, DRV8838 will not get you there. The absolute maximum voltage for these devices is 12V.
There are many other devices that should work, but there are several questions to help narrow your choices.
1) Do you intended to drive…
Hi John,
The internal mosfet diode typically can handle the current when freewheeling.
For concerns about voltage spikes, adding space for additional circuitry is usually a good idea if the space is available.
FYI -- At 50W, the DRV8870, DRV8871…
Hi Pavaman,
The VM range limits available options. There is no one device that covers both the low voltage and high voltage range.
Two DRV8848s operating from 4V to 18V is an option. If you need 30V, the DRV8823 operates from 8V to 32V.
Four DRV8870…
Hi kerr chang,
Please note the DRV8402 is "Not Recommended for New Designs". Also please note the recommended maximum Rocp_cbc resistance is 39kOhm.
The DRV8432 is a pin to pin replacement.
If 1.9A is the maximum current and the circuit/board has…
Hi Umberto,
What is the current requirement? Do they require just a single H-bridge?
The DRV8870/1/2 or DRV8881 may be good fits as well (abs max 50 V).
Hi Flysher,
Not recommend to let normal operation range so close to UVLO. Because any current surge may cause the UVLO asserted unless you have very stable and capable power supply with very low output impedance, also the very strong connection. But…
Hi Igor,
Thanks for the confirmation. Since this is an OCP event, it appears the DRV8801 is marginal in this application.
The OCP may show up more frequently across devices and motors.
There are a few options:
1) You can place two DRV8801s in…
Paul,
You can take a look at the DRV8842 (5-A Peak, down to 8.2-V) and DRV8870/1/2 (3.6-A Peak, down to 6.5-V) for an H-Bridge Motor Driver that operates lower.
