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SN6505DQDBVRQ1 +BOM
Automotive, low-noise, 1-A, 420-kHz transformer driver for isolated power supplies
SOT23-6-
Manufacturer:
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Mfr.Part #:
SN6505DQDBVRQ1
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Datasheet:
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Rating:
Automotive
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Iout (typ) (A):
1
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Vin (min) (V):
2.25
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Vin (max) (V):
5.5
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EDA/CAD Models:
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Availability: 7694 PCS
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SN6505DQDBVRQ1 General Description
The SN6505x-Q1 is a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. It drives low-profile, center-tapped transformers from a 2.25 V to 5 V DC power supply. Very low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The SN6505x-Q1 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive ground-referenced N-channel power switches. The device includes two 1-A Power-MOSFET switches to ensure start-up under heavy loads. The switching clock can also be provided externally for accurate placement of switcher harmonics, or when operating with multiple transformer drivers. The internal protection features include a 1.7 A current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry. SN6505A-Q1 and SN6505B-Q1 include a soft-start feature that prevents high inrush current during power up with large load capacitors. Soft-start feature has been disabled in SN6505D-Q1 for applications that require fast output start-up.SN6505A-Q1 has a 160 kHz internal oscillator for applications that need to minimize emissions whereas SN6505B-Q1 and SN6505D-Q1havea 420 kHz internal oscillators for applications that require higher efficiency and smaller transformer size. The SN6505x-Q1 is available in a small 6-pin SOT23/DBV package. The device operation is characterized for a temperature range from -40°C to 125°C.
Key Features
- AEC-Q100 (Grade 1) qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Documentation available to aid functional safety system design: SN6505A-Q1, SN6505B-Q1, SN6505D-Q1
- Push-pull driver for transformers
- Wide input voltage range: 2.25 V to 5.5 V
- High output drive: 1 A at 5 V supply
- Low RON 0.25 Ω max at 4.5 V supply
- Reduced conducted and radiated EMI
- Spread spectrum clocking
- Precision internal oscillator options: 160 kHz (SN6505A-Q1) and 420 kHz (SN6505B-Q1 and SN6505D-Q1)
- Synchronization of multiple devices with external clock input
- Slew-rate control
- 1.7 A Current-limit
- Low shutdown current: <1 µA
- Thermal shutdown
- Small 6-Pin SOT23 (DBV) package
- Soft-start enabled (SN6505A-Q1 and SN6505B-Q1) to reduce in-rush current and soft-start disabled (SN6505D-Q1) for fast start-up
Specifications
Rating | Automotive | Iout (typ) (A) | 1 |
Vin (min) (V) | 2.25 | Vin (max) (V) | 5.5 |
Features | Enable, Short-circuit protection, Slew-rate control, Spread spectrum clocking, Thermal shutdown | Soft start | No |
Operating temperature range (°C) | -40 to 125 | TI functional safety category | Functional Safety-Capable |
Iout (max) (A) | 1.5 | Switching frequency (min) (kHz) | 363 |
Switching frequency (max) (kHz) | 517 | Vout (max) (V) | 16 |
Switch current limit (typ) (A) | 2 | Vout (min) (V) | 0 |
feature-category | Transformer Drivers | feature-switching-frequency-khz | |
feature-minimum-operating-supply-voltage-v | feature-maximum-operating-supply-voltage-v | ||
feature-maximum-supply-current-ma | feature-packaging | Tape and Reel | |
feature-maximum-power-dissipation-mw | feature-rad-hard | ||
feature-pin-count | 6 | feature-cecc-qualified | |
feature-esd-protection | feature-military | No | |
feature-aec-qualified | Yes | feature-aec-qualified-number | AEC-Q100 |
feature-eccn-code | EAR99 | feature-svhc | No |
feature-svhc-exceeds-threshold | No |
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In Stock: 7,694
Minimum Order: 1
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