TB62737FPG Toshiba, TB62737FPG Datasheet - Page 11

• Manufacturer Part Number: TB62737FPG
• Manufacturer: Toshiba

Specifications of TB62737FPG

• Package: SON6
• Supply Voltage: 2.8V to 5.5V
• # Leds Supported: 2 to 6 LEDs in series
• Sw Frequency: 1.1MHz
• Led Current Accuracy: ±5.23% (max)
• Protection Feature: Output overvoltage protection
• Other Features & Functions: Analog dimming
• Rohs Compatible Product(s) (#): -

5) Input Logic signal
OFF
OFF
ON
ON
M1
I
The resistor connected the ON-State Nch MOS Drain and R
Average of setting current I
<Recommended application>
F
can be adjusted with Logic signal input as indicated in recommended circuit.
I
F
= (325 [mV]/Sum of resistor value [Ω])
OFF
OFF
ON
ON
M2
2.8 to 5.5 V
V
IN
=
F
(mA) is next, approximately.
325
[ ]
mV
×
R
SHDN
VIN
SENS
GND
6.8 μ H
325
11
325
[ ]
Ω
OVD
SW
[ ]
×
[ ]
mV
mV
FB
R
I F (LED Current)
R
1
S-Di
M1
[ ]
SENS
×
SENS
Ω
Logic signal
×
R
R
R
325
R
R
SENS
+
SENS
SENS
SENS
SENS
R
[ ]
SENS
[ ]
mV
Ω
determines I
R1
[ ]
Ω
×
[ ]
[ ]
[ ]
[ ]
Ω
Ω
Ω
Ω
R
1
[ ]
×
Ω
×
+
+
[ ]
Ω
R
R
R
R
R2
M2
×
2
2
1
1
R
×
[ ]
[ ]
[ ]
[ ]
Ω
Ω
Ω
Ω
R
2
[ ]
2
Ω
F
[ ]
Ω
.
+
R
1
[ ]
Ω
×
R
2
[ ]
Ω
TB62737FPG
2010-11-16