tb62734fmg TOSHIBA Semiconductor CORPORATION, tb62734fmg Datasheet
tb62734fmg
Related parts for tb62734fmg
tb62734fmg Summary of contents
Page 1
... TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic TB62734FMG Step-Up Type DC-DC Converter for White LED’s The TB62734FMG is a high-efficiency step-up type DC-DC converter the design of which has been optimized for driving white LED’ possible to drive two to six white LED’s connected in series by the lithium ion battery ...
Page 2
... Note: Connect the PGND and GND pins to the ground. 4 µH A Off time control mono multi CTL AMP. Level detect Error AMP. CTL AMP. PGND Function . 100% variable (linear control 100 TB62734FMG K RSENS 3.3 Ω 7.5 Ω 2006-06-14 ...
Page 3
... > 2 CTL RSENS = 7.5 Ω, four (4) LED’ 25°C T opr = 3 > 2 CTL RSENS = 3.3 Ω, three (3) LED’ 25°C T opr 3 TB62734FMG Min. Typ. Max. Unit ⎯ 2.8 5 ⎯ − 0.5 ⎯ 0 0.4 V ⎯ ⎯ ⎯ ...
Page 4
... (A) O (A) ⎯ V OVD = OVDZ OVD = 3 > 2 CTL RSENS = 7.5 Ω 6.8 µ illumination of four (4) LED’s, T opr 25°C 4 TB62734FMG Min. Typ. Max. Unit ⎯ 0.9 1.5 mA ⎯ µA 0.5 1.0 µ ⎯ Ω 0.7 1.5 0.75 1.0 1.39 MHz ⎯ ⎯ ⎯ ...
Page 5
... Note = Unit: µH ). − 0.8399 − 0.854 − 0.8614 − 0.8534 − 0.836 RSENS vs Iout RSENS vs I OUT V = 3.6 V Vin=3. RSENS(Ω) RSENS (Ω) 5 TB62734FMG 2 LEDs 2LED 3 LEDs 3LED 4LED 4 LEDs 5 LEDs 5LED 6 LEDs 6LED 10 12 2006-06-14 ...
Page 6
... Variable range 100 2 > 2.6 V CTL CTL 30 to 100 100 V = 3.0V Vin=3.0V IN 1.5 2.0 VCTL (V) V (V) CTL = 1.0 MHz OSC If V > 2 brightness control function by CTL CTL 6 TB62734FMG Note Unit 2.5 Set LED current I stabilized while I peak is controlled (A) 2.6 V 1.0 V 2006-06-14 ...
Page 7
... LED 85.04 to 88. LED 83.18 to 86.95 5 LED 81.15 to 85.36 80 5.2 5.5 6 LED 82.11 to 85.87 Output current in the range of V Output Current 2 LED 20.90 to 23.96 3 LED 20.80 to 22.62 4 LED 20.18 to 21.78 5 LED 19.82 to 21.34 6 LED 19.95 to 21.40 = 3 Range TB62734FMG 5 LED Drive 100 3.7 4 4.3 4.6 4.9 5.2 5.5 Vin (V) 6 LED Drive 100 3.7 4 4.3 4.6 4.9 5.2 5.5 Vin ( ...
Page 8
... LED 81.65 to 86.49 5.2 5.5 6 LED 83.53 to 87.63 Output current in the range of V 100 Output Current 95 2 LED 20.93 to 24.06 3 LED 20.69 to 22. LED 20.22 to 21. LED 19.78 to 21. LED 20.28 to 21.55 5.2 5.5 = 3 Range TB62734FMG 5 LED Drive 100 3.7 4 4.3 4.6 4.9 5.2 5.5 Vin (V) 6 LED Drive 100 3.7 4 4.3 4.6 4.9 5.2 5.5 Vin (V) = 2.8 to 5.5 V ...
Page 9
... LED’s 82.28 to 86.85 5.2 5.5 Output current in the range of V Output Current 100 2 LED’s 21.00 to 24. LED’s 20.57 to 22. LED’s 20.03 to 21. LED’s 19.44 to 21.14 6 LED’s 19.96 to 21.46 80 5.2 5 Range TB62734FMG 5 LED Drive 100 4.3 4.6 4.9 5.2 5.5 Vin (V) 6 LED Drive 100 4.3 4.6 4.9 5.2 5.5 Vin ( ...
Page 10
... LED’s Efficiency 5 LED’s 80 5.2 5.5 6 LED’s Output current in the range of V 100 2 LED’ LED’ LED’ LED’s 6 LED’s 80 5.2 5 Range TB62734FMG 5 LED Drive 100 3.7 4 4.3 4.6 4.9 5.2 5.5 Vin (V) 6 LED Drive 100 3 ...
Page 11
... Package Dimensions Weight: 0.02 g (typ.) 11 TB62734FMG 2006-06-14 ...
Page 12
... B36 Product name XXX Note: Weekly code: Code indicating the week of manufacture . A (1st week (26th week) Ass’ly code: Lot code for the week of manufacture A1 (1st lot), A2 (2nd lot), and … A9, A0, B1 … Z0, 21 … TB62734FMG 2006-06-14 ...
Page 13
... Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or combustion. In addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time. 13 TB62734FMG 2006-06-14 ...
Page 14
... 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. 14 TB62734FMG 2006-06-14 ...
Page 15
... 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 absolute maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. 15 TB62734FMG 2006-06-14 ...
Page 16
... TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. 021023_C • The products described in this document are subject to the foreign exchange and foreign trade laws. 021023_D 021023_B 060106_Q 16 TB62734FMG 060116EBA 021023_E 2006-06-14 ...