(China (Mainland))
Product Summary
The TPS61050YZGR is a 1.2-A high power white LED driver 2-MHz synchronous boost converter with I2C compatible interface. The TPS61050YZGR is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The TPS61050YZGR uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current. The 2-MHz switching frequency allows the use of small and low profile 2.2-mH inductors. To optimize overall efficiency, the TPS61050YZGR operates with only a 250 mV LED feedback voltage.
Parametrics
TPS61050YZGR absolute maximum ratings: (1)Voltage range on AVIN, VOUT, SW, LED: –0.3 V to 7 V; (2)Voltage range on SCL, SDA, FLASH_SYNC, GPIO, ENVM: –0.3 V to 7 V; (3)Input current on GPIO: 25 mA; (4)TA Operating ambient temperature range: –40℃ to 85℃; (5)TJ (MAX) Maximum operating junction temperature: 150℃; (6)Tstg Storage temperature range: –65℃ to 150℃; (7)ESD rating Human body model: 2 kV; (8)ESD rating Charge device model: 1 kV; (9)ESD rating Machine model: 200 V.
Features
TPS61050YZGR features: (1)Torch and Flash up to ILED = 1200 mA; (2)Voltage-Regulated Boost Converter: 4.5/5.0/5.25 V; (3)Shutdown: 0.3 μA (typ); (4)Total Solution Circuit Area < 25 mm2; (5)Up to 96% Efficiency; (6)I2C-Compatible Interface up to 400 kbps; (7)Integrated LED Turn-On Safety Timer; (8)Zero Latency TX-Masking Input; (9)Integrated ADC for LED VF Monitoring; (10)Integrated Low Light Dimming Mode; (11)LED Disconnect During Shutdown; (12)Open/Shorted LED Protection; (13)Over-Temperature Protection; (14)Available in a 12-Pin NanoFree (CSP) and 10-Pin QFN Packaging.
Diagrams
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 TPS61050YZGR |
Texas Instruments |
LED Lighting Drivers 1.2A High Pwr White |
Data Sheet |
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