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BD6592MUV
● Application Example
Battery
Battery
Datasheet
10 μ F
4.7 μ H
2.2 μ F *
2.2 μ F *
10LED x 6parallel
10 μ F
4.7 μ H
2.2 μ F *
2.2 μ F *
10LED x 4aprallel
RTR020N05
47m ?
SW
SENSP
FAILSEL
VDET
RTR020N05
47m ?
SW
SENSP
FAILSEL
VDET
SENSN
SENSN
Power
ON/OFF
RSTB
Power
ON/OFF
RSTB
PWMPOW
LED1
PWMPOW
LED1
200Hz
PWMDRV
LED2
200Hz
PWMDRV
LED2
PWM
VBAT
LED3
LED4
PWM
VBAT
LED3
LED4
LED5
LED5
2.2 μ F
VREG
GND GND GND GND TEST ISETH ISETL LED6
2.2 μ F
VREG
GND GND GND GND TEST ISETH ISETL LED6
12k ?
Each 40mA
12k ?
Each 40mA
Figure 27. 10 series x 6parallel
Hi current 40mA setting
Current driver PWM application
Figure 28. 10 series x 4parallel
Hi current 40mA setting
Current driver PWM application
* Please select the capacitor which the little bias fluctuation.
Battery
Battery
10 μ F
4.7 μ H
2.2 μ F *
2.2 μ F *
10LED x 6parallel
10 μ F
4.7 μ H
2.2 μ F *
2.2 μ F *
10LED x 6parallel
RTR020N05
47m ?
SW
SENSP
FAILSEL
VDET
RTR020N05
47m ?
SW
SENSP
FAILSEL
VDET
SENSN
SENSN
Power
ON/OFF
RSTB
Power
ON/OFF
RSTB
PWMPOW
LED1
PWMPOW
LED1
200Hz
PWM
PWMDRV
LED2
LED3
200Hz
PWM
PWMDRV
LED2
LED3
LED5
LED5
2.2 μ F
VBAT
LED4
VREG
GND GND GND GND TEST ISETH ISETL LED6
2.7V to 5.5V
2.2 μ F
VBAT
LED4
VREG
GND GND GND GND TEST ISETH ISETL LED6
16k ?
Each 30mA
12k ?
Each 40mA
Figure 29. 10 series x 6parallel LED current 30mA setting
Power control PWM application
Figure 30. Non-used Inside REG
or operating under 5V application
* Please select the capacitor which the little bias fluctuation.
● Terminal Processing
TEST pin= Connect to GND
N.C. = Nothing specified in particular. Open is recommended.
VREG= When IC is driving from the outside of 2.7 to 5.5V, short VBAT and VREG, and put the voltage to VREG
FAILSEL, PWMDRV= Connect to GND in case of fixing at L level. Connect to VREG of IC or the power supply of more
than 1.4V in case of fixing at H level .
LED1-6= When each LED driver are not used, connect to GND of IC
GND = Each GND is connecting inside IC, but, connect to GND of all board
RSTB= RSTB is used as a power supply of internal circuit.
So, you mustn’t input RSTB voltage with pull up resistor of several k ? . And, please care about the relation between VBAT
and RSTB enough. (ref. Page 14)
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
11 / 31
TSZ02201-0G3G0C400210-1-2
21.Dec.2012 Rev.001
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