Features: ` Adjustable Current Limit Protection
` 3.3-V, 10-mA Internal Regulator
` DSP/C Compatible Inputs
` Dual ±4-A TrueDrive™ High Current Drivers
` 10-ns Typical Rise and Fall Times with 2.2-nF Loads
` 20-ns Input-to-Output Propagation Delay
` 25-ns Current Sense-to-Output Propagation Delay
` Programmable Current Limit Threshold
` Digital Output Current Limit Flag
` 4.5-V to 15-V Supply Voltage Range
` Rated from -40°C to 105°C
` Lead(Pb)-Free Packaging
Application· Digitally Controlled Power Supplies
· DC/DC Converters
· Motor Controllers
· Line Drivers
Pinout
Specifications
| SYMBOL |
PARAMETER |
UCD7201 |
UNIT |
| VDD |
Supply Voltage |
|
16 |
V |
| IDD |
Supply Current |
Quiescent |
20 |
mA |
| Switching, TA =25,TJ = 125, VDD =12 V |
200 |
| VOUT |
Output Gate Drive Voltage |
OUT |
-1 to PVDD |
V |
| IOUT(sink) |
Output Gate Drive Current |
OUT |
4.0 |
A |
| IOUT(source) |
-4.0 |
| |
Analog Input |
ISET, CS |
-0.3 to 3.6 |
V |
| ILIM |
-0.3 to 3.6 |
| |
Digital I/O's |
IN, CLF |
-0.3 to 3.6 |
| |
Power Dissipation |
TA =25 (PWP-14 package),TJ = 125 |
2.67 |
W |
| TA =25 (QFN-16 package),TJ = 125 |
- |
| TJ |
Junction OperatingTemperature |
UCD7201 |
-55 to 150 |
|
| Tstr |
Storage Temperature |
-65 to 150 |
V |
| HBM |
ESD Rating |
Human body model |
2000 |
|
| CDM |
Change device model |
500 |
| TSOL |
Lead Temperature (Soldering, 10 sec) |
+300 |
|
(1) 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 under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to GND. Currents are positive into, negative out of the specified terminal.DescriptionThe UCD7201 is a member of the UCD7K family of digital control compatible drivers for applications utilizing digital control techniques or applications requiring fast local peak current limit protection.
The UCD7201 includes dual low-side ±4-A high-current MOSFET gate drivers. It allows the digital power controllers such as UCD9110 or UCD9501 to interface to the power stage in double ended topologies. It provides a cycle-by-cycle current limit function for both driver channels, a programmable threshold and a digital output current limit flag which can be monitored by the host controller. With a fast cycle-by-cycle current limit protection, the driver can turn off the power stage in the event of an overcurrent condition.
For fast switching speeds, the UCD7201 output stages use the TrueDrive™ output architecture, which delivers rated current of ±4 A into the gate of a MOSFET during the Miller plateau region of the switching transition. It also includes a 3.3-V, 10-mA linear regulator to provide power to the digital controller.
UCD7201 Data Sheet
