TPS92682QRHBRQ1

制造商型号:
TPS92682QRHBRQ1
制造商:
Texas Instruments
产品类型:
Dual-Channel LED Driver Controller
系列:
TPS92682-Q1
封装:
VQFN-32
描述:
Dual-Channel LED Driver Controller

产品属性

属性数值
Supply Voltage6.5 to 65 V normal recommended operation; 4.5-V battery-crank operation
Switching Frequency100 to 700 kHz recommended oscillator range; synchronized within 0.8 to 1.2 times programmed clock
ProtectionCycle-by-cycle limit, output over/undervoltage, LED overcurrent, thermal warning and channel fault flags; limp-home mode
Operating Temperature-40 to +125 °C ambient
Channels2 peak-current-mode controller channels; external power MOSFETs required
ModesConstant-voltage boost (independent or dual-phase) or constant-current LED driver configurations
LED Current Accuracy+/-4% over -40 to +150 °C junction range; external stage/sense components set current
Dimming8-bit analog DAC; direct PWM or 10-bit internal PWM; P-channel series-FET driver
ControlSPI programming for regulation, soft start, spread spectrum and diagnostics
Package DetailsVQFN, RHB, 32 terminals; 5 x 5 mm body; 0.5 mm pitch; 1.0 mm maximum height

产品描述

TPS92682QRHBRQ1 is a dual-channel peak-current-mode controller operating from 6.5 to 65 V in its normal recommended range. It controls two external switching power stages and can be programmed for constant-voltage or constant-current operation. It can serve two independently controlled channels or a dual-phase boost arrangement, depending on the selected mode.

SPI sets regulation and diagnostic behavior as well as dimming. The gate-driver and current-sense functions do not imply a fixed LED output-current rating: the external MOSFETs, magnetics and sense components determine that capability.

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