UCC21520-Q1 Texas instruments

UCC21520-Q1

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UCC21520-Q1

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Описание

The UCC21520-Q1 is an isolated dual-channel gate drivers with 4-A source and 6-A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5-MHz with best-in-class propagation delay and pulse-width distortion. The input side is isolated from the two output drivers by a 5.7-kVRMS reinforced isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500 VDC.Every driver can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously, and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low.Each device accepts VDD supply voltages up to 25 V. A wide input VCCI range from 3 V to 18 V makes the driver suitable for interfacing with both analog and digital controllers. All supply voltage pins have under voltage lock-out (UVLO) protection. With all these advanced features, the UCC21520-Q1 enables high efficiency, high power density, and robustness.

Qualified for automotive applications
AEC-Q100 qualified with the following results
- Device temperature grade 1
- Device HBM ESD classification level H2
- Device CDM ESD classification level C6
Functional safety quality-managed
- Documentation available to aid functional safety system design
Operating temperature range –40 to +125°C
Switching parameters:
- 19-ns typical propagation delay
- 10-ns minimum pulse width
- 5-ns maximum delay matching
- 6-ns maximum pulse-width distortion
Common-mode transient immunity (CMTI) greater than 100 V/ns
Surge immunity up to 12.8 kV
Isolation barrier life >40 years
4-A peak source, 6-A peak sink output
3-V to 18-V input VCCI range to interface with both digital and analog controllers
Up to 25-V VDD output drive supply
- 5-V and 8-V VDD UVLO options
Programmable overlap and dead time
Rejects input pulses and noise transients shorter than 5 ns
Fast disable for power sequencing
Safety-related certifications:
- 8000-V_PK reinforced Isolation per DIN V VDE V 0884-11:2017-01
- 5.7-kV_RMS isolation for 1 minute per UL 1577
- CSA certification per IEC 60950-1, IEC 62368-1, IEC 61010-1 and IEC 60601-1 end equipment standards
- CQC certification per GB4943.1-2011

Number of channels	2
Isolation rating	Reinforced
Withstand isolation voltage (VISO) (Vrms)	5700
Transient isolation voltage (VIOTM) (VPK)	8000
Power switch	IGBT, MOSFET
Peak output current (A)	6
Features	Disable, Programmable dead time
Output VCC/VDD (max) (V)	25
Output VCC/VDD (min) (V)	6.5, 9.2
Input VCC (min) (V)	3
Input VCC (max) (V)	18
TI functional safety category	Functional Safety Quality-Managed
Propagation delay time (µs)	0.019
Input threshold	CMOS, TTL
Operating temperature range (°C)	-40 to 125
Rating	Automotive
Bus voltage (max) (V)	2121
Rise time (ns)	6
Fall time (ns)	8
Undervoltage lockout (typ) (V)	5, 8