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See Technical Specifications

LM36922YFFR +BOM

High efficiency, dual-String, 30-V Synchronous white LED driver

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM36922YFFR
Datasheet:

LM36922YFFR Datasheet (PDF)
Type:

DC DC Regulator
Topology:

Step-Up (Boost)
Internal Switch(s):

Yes
Number Of Outputs:

2
EDA/CAD Models:

Request Free CAD Models for LM36922YFFR

Email: [email protected]

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Tel: +852 95804164

LM36922YFFR General Description

Utilizing an I2C interface or logic level PWM input, users can easily adjust the LED current to suit their specific needs. The internal sensing of PWM duty cycle allows for precise control, with an 11-bit current mapping facilitating a wide range of PWM frequencies for seamless operation without any noise disruptions

Key Features

1% Matched Current Sinks Across (Process,
Voltage, Temp)
3% Current Sink Accuracy Across (Process,
Voltage, Temp)
11-Bit Dimming Resolution
Up to 91.6% Solution Efficiency
Drives from One to Two Parallel LED Strings at up
to 28 V
PWM Dimming Input
I²C Programmable
Selectable 500-kHz and 1-MHz Switching
Frequency with Optional –12% shift
Auto Switch Frequency Mode (250 kHz, 500 kHz,
1 MHz)
Four Configurable Overvoltage Protection
Thresholds (17 V, 21 V, 25 V, 29 V)
Four Configurable Overcurrent Protection
Thresholds (750 mA, 1000 mA, 1250 mA, 1500
mA)
Thermal Shutdown Protection

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)LED Drivers	Series	-
Type	DC DC Regulator	Topology	Step-Up (Boost)
Internal Switch(s)	Yes	Number of Outputs	2
Voltage - Supply (Min)	2.5V	Voltage - Supply (Max)	5.5V
Voltage - Output	38V	Current - Output / Channel	25mA
Frequency	500kHz, 1MHz	Dimming	I²C, PWM
Applications	Backlight	Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Base Product Number	LM36922
Number of channels	2	Vin (min) (V)	2.5
Vin (max) (V)	5.5	Vout (min) (V)	0
Vout (max) (V)	29.5	Switching frequency (max) (kHz)	1050
Duty cycle (max) (%)	94	LED current per channel (mA)	25
Peak efficiency (%)	92	Features	Adjustable Switch Frequency, CABC, Direct PWM Dimming, Enable/Shutdown, I2C control, OVP, PWM control, Thermal shutdown
Operating temperature range (°C)	-40 to 85	Rating	Catalog
feature-number-of-digits		feature-number-of-segments	16
feature-number-of-led-outputs		feature-topology
feature-process-technology		feature-input-output-type
feature-minimum-operating-supply-voltage-v	2.5	feature-maximum-operating-supply-voltage-v	5.5
feature-output-voltage-v	29.5(Max)	feature-maximum-supply-current-ua
feature-maximum-output-current-ma	25(Typ)	feature-maximum-power-dissipation-mw
feature-packaging	Tape and Reel	feature-rad-hard
feature-pin-count	12	feature-cecc-qualified
feature-esd-protection	Yes	feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No