TB62737FUG Toshiba, TB62737FUG Datasheet
TB62737FUG
Specifications of TB62737FUG
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TB62737FUG Summary of contents
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... TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic Step Up Type DC-DC Converter for White LED The TB62737FUG is a high efficient step-up type DC-DC converter specially designed for constant current driving of White LED. This IC can drive 2-6 white LEDs connected series using a Li-ion battery. This IC contains N-ch MOS-FET Transistor for Coil-Switching, and LED Current ( set with an external resistor ...
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... CTL AMP. Level detect Error AMP. CTL AMP SHDN 5 GND 4 SW Function Description = 25% to 100 100% F setting resistor connecting terminal TB62737FUG OVD GND OVD 2 5 GND Week 2010-07-01 ...
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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 TB62737FUG 2010-07-01 ...
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... Please see the example of application circuit. If load of LED is detached, Nch MOS switching operation is disabled with detection of boost circuit voltage. Indictor Size 4.7 μ H 6.8 μ H LED current I 8.1 μ μ H (Ω the resistance for the setting the output current. 4 TB62737FUG Note = 2010-07-01 ...
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... Linearity error in V-A Conversion is within +/−10%. SHDN Voltage V SHDN I Valuable Rate F 100 SHDN 100 Current variable due to SHDN pin Vin = 3 variable rate 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 V SHDN (V) 5 TB62737FUG > 2 SHDN Note 100 Unit 2.0 2.2 2.4 2.6 2.8 2010-07-01 ...
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... Control with PWM: Ideal Equation>> 325 [mV] [mA RSENS Set ON-time Set OFF-time = 0.1 (μF) or less are recommended. of charge depends on the constant number. And so arises in turning on. Take care in selecting the 2 × ON Duty [%] Ω TB62737FUG 33 μ more = 3.3% Available Duty Ratio (3.3% to 96.7%) 33 μ more = 3.3% 2010-07- ...
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... SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz I 12kHz IN 80 100 SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz I 12kHz IN 80 100 SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz I IN 12kHz 80 100 7 TB62737FUG Wave Form Wave Form Wave Form Wave Form 2010-07-01 ...
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... V IN 2.8 to 5.5 V PWM signal 6.8 μ SHDN OVD FB GND 8 TB62737FUG 2010-07-01 ...
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... Supply Voltage Ratio with Setting (V) No connect (OFF) 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 <Recommended application> 2.8 to 5.5 V Current 100% 116.0% 106.5% 140.0% 95.4% 120.0% 84.5% 100.0% 80.0% 73.6% 60.0% 59.9% 40.0% 48.4% 20.0% 0.0% 37.4% 0 26.6% 15.9% 5.8% 0.0% 6.8 μ SHDN OVD 16 k Ω FB GND Analog DAC 9 TB62737FUG TB62737FUG Analog Voltage Input to FB Terminal 0.5 1 1.5 2 Input Voltage 2010-07-01 2.5 ...
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... Current 100% 116.1% Input PWM signal filtered with R,C to the FB terminal Input PWM signal filtered with RC to the FB terminal 105.3% 140.0% 95.1% 120.0% 84.8% 100.0% 80.0% 74.6% 60.0% 64.0% 40.0% 53.8% 20.0% 0.0% 43.7% 0% 34.0% 24.2% 13.3% 6.8 μ SHDN OVD 16 k Ω FB GND PWM signal 10 TB62737FUG TB62737FUG TB62737FUG 20% 40% 60% 80% 100% PWM Duty(%) 2010-07-01 ...
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... R R SENS × 325 [ mV ] Ω × SENS Ω × Ω SENS SENS × 325 [ mV ] Ω × SENS 11 TB62737FUG . F Ω Ω Ω Ω Ω × Ω + Ω × Ω Ω × Ω ...
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... V, RSENS = 16 Ω 25° 6.8 μ opr = 3.6 V (typ Δ 3 OVD OVD OVD 12 TB62737FUG Unit °C/W °C °C °C Min Typ. Max ⎯ 2.8 5.5 ⎯ 2.7 V ⎯ 0 0.5 ⎯ ⎯ 33 ⎯ ⎯ 20 Min Typ. ...
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... I IN (OFF) 4. Vo(SW fOSC TB62737FUG GND SW TB62737FUG OVD VIN SHDN ↓ GND SW TB62737FUG OVD VIN SHDN Δ 6.8 μ H 1SS404 VIN SW OVD TB62737FUG GND FB SHDN 2010-07-01 ...
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... VIN SW OVD TB62737FUG GND SHDN 1:The locations of the pins differ from the actual ones to simplify the diagram. See page 1 for the actual pin locations OVD TB62737FUG GND SW TB62737FUG OVD VIN SHDN 2010-07-01 ...
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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 15 TB62737FUG 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.) RSENS : RK73B1ETBK (KOA Corp ...
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... Efficiency Output current in the range 3 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 16 TB62737FUG 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.) RSENS : RK73B1ETBK (KOA Corp ...
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... Efficiency Output current in the range 3 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 17 TB62737FUG 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 ...
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... Efficiency Output current in the range 3 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 18 TB62737FUG 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.) RSENS : RK73B1ETBK (KOA Corp ...
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... Output current in the range 3 Iout 60 Efficiency Efficiency 50 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 19 TB62737FUG 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.) RSENS : RK73B1ETBK (KOA Corp ...
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... Package Dimensions Weight: 0.016 g (typ.) 20 TB62737FUG 2010-07-01 ...
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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. 21 TB62737FUG 2010-07-01 ...
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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. 22 TB62737FUG ) at any time and J 2010-07-01 ...
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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 23 TB62737FUG 2010-07-01 ...
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... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. 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. 24 TB62737FUG 2010-07-01 ...