Dual channel constant-Voltage and constant current controller with SPI
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 grade 1 qualified
- Functional Safety-Capable
- Wide input voltage range: 4.5 V to 65 V
- ± 4% LED current accuracy over –40°C to 150°C junction temperature range
- SPI communication interface
- SPI programmable features:
- Spread spectrum for improved EMI
- Soft-start timing
- ILED current and output voltage settings
- Current limit, overvoltage, fault-timer
- Single versus dual phase
- CV and CC mode configuration
- Dual channel peak-current-mode (PCM) controller
- Low input offset rail-to-rail current sense amplifier
- Analog dimming
- External series FET PWM dimming with integrated P-channel driver interface
- Over 1000:1 PWM dimming range
- Open-drain fault flag indicator per channel
- Up to 1-MHz programmable switching frequency with external clock synchronization capability
- Comprehensive programmable fault protection circuitry
- Wettable flank with VQFN package
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Description
The TPS92682-Q1 is a dual-channel, peak current-mode controller with SPI communication interface. The device is programmable to operate in constant-voltage (CV) or constant-current (CC) modes.
In CV mode, TPS92682-Q1 can be programmed to operate as two independent or dual-phase Boost voltage regulators. The output voltage can be programmed using an external resistor voltage divider, and a SPI-programmable 8-bit DAC.
In CC mode, the device is designed to support dual channel step-up or step-down LED driver topologies. LED current can be independently modulated using analog or PWM dimming techniques. Analog dimming with over 28:1 range is obtained using a programmable 8-bit DAC. PWM dimming of LED current is achieved either by directly modulating the PWM input pins with the desired duty cycle, or using a SPI-programmable 10-bit PWM counter. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.
The TPS92682-Q1 incorporates an advanced SPI-programmable diagnostic and fault protection mechanism including: cycle-by-cycle current limit, output overvoltage and undervoltage protection, ILED overcurrent protection, and thermal warning. The device also includes an open-drain fault indicator output per channel.
The TPS92682-Q1 includes an LH pin, when pulled high, initiates the limp home (LH) condition. In LH mode, the device uses a separate set of SPI-programmed registers.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LEDMCUEVM-132 implements SPI communications that support multiple devices on the bus, UART communications for the LMMs family of devices, CAN transceiver for UART to control LMM family of devices, 4 PWM signals for dimming, multiple IOs, isolated 5-V supply, digital isolators, and a standard CAN (...)
Features
- SPI communications that supports up to 6 devices on the bus
- UART communications to work with LMM products
- CAN transceivers for both UART communications and CAN protocol communications
- 4 dedicated PWM signals for PWM dimming
- Multiple GPIOs to support specialized features
- Digital Isolators for all MSP432 (...)
Description
Features
- Supports 6V - 42V input
- Programmable output voltage upto 60V
- Programmable spread spectrum for EMI mitigation
- SPI interface for fault monitoring, and fault handling
- GUI provides computer inteface and design tool
Description
The TPS92682EVM-070 features a two channel, constant current boost and boost-to-battery regulator based on the TPS92682 dual channel controller with SPI interface device. It is designed to operate with an input voltage from 6V to 20V and total power output of 40W with max output voltage 60V. The EVM (...)
Features
- Supports 6V - 20V input
- Programmable output (LED) current
- Programmable PWM dimming
- Programmable spread spectrum for EMI mitigation
- SPI interface for fault monitoring, and fault handling
- GUI provides computer inteface and design tool
Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
-
download TIDA-050040 BOM.pdf (148KB) -
download TIDA-050040 Assembly Drawing.pdf (518KB) -
download TIDA-050040 PCB.pdf (2050KB) -
download TIDA-050040 CAD Files.zip (4777KB) -
download TIDA-050040 Gerber.zip (680KB)
Design files
-
download TIDA-050029 BOM.pdf (304KB) -
download TIDA-050029 Assembly Drawing.pdf (417KB) -
download TIDA-050029 PCB.pdf (1723KB) -
download TIDA-050029 CAD Files.zip (1759KB) -
download TIDA-050029 Gerber.zip (701KB)
Design files
-
download TIDA-050030 BOM.pdf (70KB) -
download TIDA-050030 Assembly Drawing.pdf (459KB) -
download TIDA-050030 PCB.pdf (2322KB) -
download TIDA-050030 CAD Files.zip (21601KB) -
download TIDA-050030 Gerber.zip (964KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTSSOP (DAP) | 32 | View options |
VQFN (RHM) | 32 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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