TS19371 データシートの表示（PDF） - TSC Corporation
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TS19371 Datasheet PDF : 10 Pages
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Functional Block
TS19371
Boost (Step-up) WLED Driver with OVP
Pin Description
Pin
Pin
(SOT-26) (SOP-8)
1
8
2
2,3,6,7
3
5
4
4
5
6
1
Function
Description
SW
Ground
FB
CTRL
OVP
VIN
Switching Pin. This is the collector of the internal NPN power switch.
Connect to inductor and diode. Minimize the metal trace area
connected to this pin to reduce EMI.
Ground Pin. Connect directly to local ground plane.
Feedback Pin. Reference voltage is 95mV. Connect LEDs and a
resistor at this pin. LED current is determined by the resistance and
CTRL voltage.
Shutdown Pin and Dimming Control Pin.
VCTRL > 1.8V generates full-scale LED current
VCTRL < 0.4V chip is off
Switching from 04V to 2.0V, PWM duty cycle controls the LED current
Over Voltage Protection, 30V
Input Supply Pin. Bypass this pin with a capacitor as close to the
device as possible
3/10
Version: G08
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