Low profile surface mount gan fet driver Allegro AHV85111KNHTR with 5 kv rms isolation voltage and ul 1577 certification
Product Overview
The AHV85111 is a self-powered, single-channel isolated GaN FET driver designed to optimize the driving of GaN FETs in various applications and topologies. It features an integrated isolated dual positive/negative output bias supply, eliminating the need for external bias supplies or high-side bootstrap. The driver offers bipolar output rails with an adjustable and regulated positive rail, enhancing dv/dt immunity, simplifying system design, and reducing EMI. With fast propagation delays and high peak source/sink capability, it is ideal for high-frequency designs. The device boasts high CMTI and isolated outputs for bias power and drive, making it suitable for applications requiring isolation, level-shifting, or ground separation for noise immunity. It is available in a compact, low-profile surface-mount NH package and includes integrated protection features such as undervoltage lockout and overtemperature shutdown.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: AEC-Q100 Grade 2, UL 1577, UL 62368-1 (pending)
- Package Type: NH (12-pin low-profile surface mount)
- Isolation Voltage: 5 kV RMS VISO (UL 1577), 8 kV pk VIOTM (maximum transient), 1 kV pk (maximum working)
- MSL Rating: MSL-3
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage Pins | ||||||
| Drive Supply Voltage | VDRV | 10.8 | 13.2 | V | ||
| Input Pins | ||||||
| Input Data Logic Low | VIN(L) | 0.8 | V | |||
| Input Data Logic High | VIN(H) | 2.0 | V | |||
| Enable Active High Logic Low | VEN(L) | 0.8 | V | |||
| Enable Active High Logic High | VEN(H) | 2.0 | V | |||
| Output Pins | ||||||
| Positive Regulated Isolated Gate Drive Bias Rail | VSECP | Referenced to SOURCE | 6 | V | ||
| Negative Unregulated Isolated Gate Drive Bias Rail | VSECN | Referenced to SOURCE | -6 | V | ||
| Reference Voltage | VREF | Regulation level | 3.30 | V | ||
| Primary Undervoltage Lockout | ||||||
| VDRV UV Threshold, Rising | VDRV_UVH | 9.5 | 10.0 | 10.5 | V | |
| VDRV UV Threshold, Falling | VDRV_UVL | 8.8 | 9.3 | 9.8 | V | |
| Secondary Undervoltage Lockout | ||||||
| VSEC UV Threshold, Rising | VSEC_UVH | 4 | 4.4 | 4.9 | V | |
| VSEC UV Threshold, Falling | VSEC_UVL | 3.7 | 4.1 | 4.5 | V | |
| Overtemperature Protection | ||||||
| Overtemperature Threshold, Rising | TSD | 150 | 155 | 160 | C | |
| Switching Characteristics | ||||||
| Propagation Delay, High To Low | tPHL | Rext_pu = 2 | 50 | 100 | ns | |
| Propagation Delay, Low To High | tPLH | Rext_pd = 2 | 50 | 100 | ns | |
| Rise Time | tr | Rext_pu = 0 , 20-80% | 9 | 15 | ns | |
| Fall Time | tf | Rext_pd = 0 , 20-80% | 7 | 15 | ns | |
| Startup Time | tSTART | Wait Time Before First IN Edge is Delivered After VDRV is Within Specification | 250 | s | ||
| Package Dimensions | ||||||
| Package Size | 10 mm 7.66 mm 2.41 mm | |||||
| Creepage Distance | 8.4 | mm | ||||
| CMTI | > 100 | V/ns | ||||
| Models | ||||||
| Part Number | Qualification | Package | Tape & Reel Detail | |||
| AHV85111KNHTR | AEC-Q100 Grade 2 | 10 mm 7.66 mm 2.41 mm, 12-pin low-profile surface mount | 13-inch, 1500 pieces | |||
| AHV85111KNHLU | 10 mm 7.66 mm 2.41 mm, 12-pin low-profile surface mount | 13-inch, 200 pieces | ||||
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