TB62757FUG Toshiba, TB62757FUG Datasheet
TB62757FUG
Specifications of TB62757FUG
Related parts for TB62757FUG
TB62757FUG Summary of contents
Page 1
... TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic Step Up Type DC-DC Converter for White LED The TB62757FUG is a high efficient Step-Up Type DC-DC Converter specially designed for constant current driving of White LED. This IC can drive white LEDs connected series using a Li-ion battery. This IC contains N-ch MOSFET Transistor for Coil-Switching, and LED Current ( set with an external resistor ...
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... LED I setting resister connecting terminal Monostable multivibrator for for off time control CTL AMP. on/off Error AMP GND 4 SW Week Function Description 2 TB62757FUG OVD GND SHDN OVD 2 5 GND Week 2010-06-306 ...
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... I/O Equivalent Pin Circuits 1. SHDN Terminal V IN SHDN Terminal to GND Terminal GND Terminal OVD Terminal OVD Terminal TB62757FUG 2010-06-306 ...
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... If load of LED is detached, N-ch MOS switching operation is disabled with detection of boost circuit voltage. (* When the voltage value recovers below the detection voltage value, operation is restarted Monostable multivibrator for for off time control CTL AMP. on/off Error AMP. (OVD Function) 4 TB62757FUG 2 OVD GND 2010-06-306 ...
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... The average output current Io (mA) can be approximated with the following equation (325 [mV]/R [Ω]) F SENS The current value error is ±5%. Indictor Size 4.7 μ H 6.8 μ H LED current I 8.1 μ μ H (Ω) is the resistance for the setting the output current. SENS 5 TB62757FUG Note = 2010-06-306 ...
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... PWM: Ideal equation>> 325 [ Set On-time Set Off-time = 0.1 (μF) or less are recommended charge depends on the constant number. And 2 × Duty [%] [ Ω SENS 6 TB62757FUG 33 μ more = 3.3% Available Duty Ratio (3.3% to 96.7%) 33 μ more = 3.3% , arises in turning on. Take care in selecting 2 2010-06-306 ...
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... SHDN VOUT 500kHz 1kHz 2kHz 4kHz 8kHz I IN 12kHz 80 100 SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz I IN 12kHz 80 100 SHDN VOUT 500kHz 1kHz 2kHz 4kHz 8kHz I IN 12kHz 80 100 7 TB62757FUG Wave Form Wave Form Wave Form Wave Form 2010-06-306 ...
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... V IN 2.8 to 5.5 V PWM signal 6.8 μ SHDN OVD FB GND 8 TB62757FUG 2010-06-306 ...
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... V IN 2.8 to 5.5 V SENS Ratio with Setting Current 100% 140.0% 116.0% 120.0% 106.5% 100.0% 80.0% 95.4% 60.0% 84.5% 40.0% 73.6% 20.0% 0.0% 59.9% 0 48.4% 37.4% 26.6% 15.9% 5.8% 0.0% 6.8 μ SHDN OVD 16 k Ω FB GND Analog voltage 9 TB62757FUG , if the input analog voltage is TB62757FUG TB62737FUG Analog Voltage Input to FB Terminal 0.5 1 1.5 2 Input Voltage 2010-06-306 2.5 ...
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... Ratio with Setting Current 100% 140.0% 116.1% 120.0% 105.3% 100.0% 80.0% 95.1% 60.0% 84.8% 40.0% 74.6% 20.0% 0.0% 64.0% 0% 53.8% 43.7% 34.0% 24.2% 13.3% 6.8 μ SHDN OVD 16 k Ω FB GND PWM signal 10 TB62757FUG , if the input voltage after filtering is TB62757FUG TB62737FUG Input PWM signal filtered with R,C to the FB terminal 20% 40% 60% 80% PWM Duty(%) 2010-06-306 100% ...
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... R SENS [ R SENS × 325 [ SENS Ω × Ω SENS SENS × 325 [ mV ] Ω × SENS 11 TB62757FUG determines Ω Ω × Ω Ω + Ω Ω × Ω Ω × Ω + Ω ...
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... Ω 6.8 μ SENS = 3.6 V center V IN Δ 3 ⎯ V OVD = OVDZ OVD 12 TB62757FUG Unit V + 0.3 (Note (Note 2) °C/W °C °C °C Min Typ. Max ⎯ 2.8 5.5 ⎯ ⎯ 33 ⎯ ⎯ 20 Min Typ. Max ⎯ ...
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... Efficiency Output current in the range 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 13 TB62757FUG Evaluation conditions (Ta = 25° CXLD120 series (NEO MAX CO.,Ltd.) 1 (Size: 2.5 mm × 3.0 mm × 1.2 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) Input Voltage - Efficiency/Output Current 5LED Drive, L=10μ ...
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... Efficiency Output current in the range 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 14 TB62757FUG Evaluation conditions (Ta = 25° 1001AS series (TOKO, INC) 1 (Size: 3.6 mm × 3.6 mm × 1.2 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) Input Voltage - Efficiency/Output Current 5LED Drive, L=10μ ...
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... Efficiency Efficiency Output current in the range 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 15 TB62757FUG Evaluation conditions (Ta = 25° LQH2M series 1 (Murata Manufacturing Co.,Ltd.) (Size: 2.0 mm × 1.6 mm × 0.95 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) Input Voltage - Efficiency/Output Current 5LED Drive, L=10μ ...
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... Efficiency Output current in the range 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 16 TB62757FUG Evaluation conditions (Ta = 25° VLF3010A series (TDK Corp.) 1 (Size: 3.0 mm × 3.0 mm × 1.0 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) Input Voltage - Efficiency/Output Current 5LED Drive, L=10μ ...
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... Output current in the range Iout 60 Efficiency Efficiency 50 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 17 TB62757FUG Evaluation conditions (Ta = 25° 32R51 (KOA Corp.) 1 (Size: 3.2 mm × 2.5 mm × 0.6 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) Input Voltage - Efficiency/Output Current 3LED Drive, L=5.1μ ...
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... Package Dimensions Weight: 0.016 g (typ.) 18 TB62757FUG 2010-06-306 ...
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... DC voltage will increase. If this output voltage is connected to a speaker with low input withstand voltage, overcurrent or IC failure can cause smoke or ignition. (The over current can cause smoke or ignition from the IC itself.) In particular, please pay attention when using a Bridge Tied Load (BTL) connection type IC that inputs output DC voltage to a speaker directly. 19 TB62757FUG 2010-06-306 ...
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... If the current sink capability of the power supply is small, the device’s motor power supply and output pins might be exposed to conditions beyond maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. 20 TB62757FUG ) at any time and J 2010-06-306 ...
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... Use of Sn-37Pb solder Bath solder bath temperature: 230°C dipping time: 5 seconds the number of times: once use of R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath solder bath temperature: 245°C dipping time: 5 seconds the number of times: once use of R-type flux 21 TB62757FUG 2010-06-306 ...
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... Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 22 TB62757FUG 2010-06-306 ...