TB62752BFUG Toshiba, TB62752BFUG Datasheet - Page 6

• Manufacturer Part Number: TB62752BFUG
• Manufacturer: Toshiba

Specifications of TB62752BFUG

• Package: SOT23-6
• Supply Voltage: 2.8V to 5.5V
• # Leds Supported: 2 to 7 LEDs in series
• Sw Frequency: 1.0MHz
• Led Current Accuracy: ±5.0% (max)
• Protection Feature: Output overvoltage protection
• Other Features & Functions: -
• Rohs Compatible Product(s) (#): Available

(2)
(3)
Input analog voltage to FB terminal
I
This method is without repeating IC ON/OFF, and no need to consider holding rash current.
[Notice]
<<Recommended application>>
Input PWM signal with filtering to FB terminal
I
PWM signal can be regard as analog voltage after filtering.
This method is without repeating IC ON/OFF, and no need to consider holding rash current.
[Notice]
<<Recommended application>>
F
F
•
•
can be adjusted with analog voltage input to FB terminal.
can be adjusted with filtering PWM signal using RC filter indicated in recommended circuit, because the
LED current value goes over 100% of the current set with RSENS, if the input analog voltage is
between 0 to 300 mV (typ.).
LED current value goes over 100% of the current set with RSENS, if the input voltage after filtering is
between 0 to 300 mV (typ.).
2.8 to 5.5 V
VIN =
2.8 to 5.5 V
VIN =
VIN
SHDN
22 μ H
GND
SHDN
VIN
OVD
PWM signal
22 μ H
SW
6
GND
FB
S-Di
OVD
SW
10 k Ω
FB
82 k Ω
Analog voltage
S-Di
82 k Ω
16 k Ω
16 k Ω
0.1 μ F
TB62752BFUG
2011-06-08