HT4900
Description
HT4900
HT4900 IC+ IC
LED
LED 500mA MOSFET
MOSFET.
4KV ESD
0V
//
500KHZ 5uA
STB
20uA
1
HT4900
:
ESOP8
1 GND 2 EXT 3 LX 4 BTP 5 VDD 6 L1 7 CE 8 FB 9 STB
BOOST BOOST
5V
2
HT4900
9 STB 5 G2 G1 4 6 S2 S1 3 7 S2 S1 2 8 D2 D1 1
2 B1 B+
C5 0.1uF
R8 100R C2
USB_IN
VCC
1 2 3 4
DD+ GND
C1
5
6
LED1 R11 1K
7 8
VDD BTP
U1 L1
HT4900
CE
LX EX...
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