Part Number
|
HT4900 |
Manufacturer
|
HOTCHIP |
Description
|
HT4900 |
Published
|
Dec 7, 2018 |
Detailed Description
|
HT4900
HT4900 IC+ IC
LED
LED 500mA MOSFET
MOSFET.
4KV ESD
0V
//
500KHZ 5uA
STB
20uA
1
HT4900
:
ESOP8
1 GND 2...
|
Datasheet
|
HT4900
|
Overview
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 EXT
FB GND
4 3 2 1
L1 4.
7uH
6 VSS OD 1 5 VDD CSI 2 4 TD OC 3
Q4 HT8205A
U2 DW01+
R9 1K
D1
D2 5.
6V
R4 R5
C3 Q1
43K 75K C4
R1
USB_OUT
VCC DD+
GND
1 2 3 4
R6 R7
Q3
R3 R2 49.
9K49.
9K 3904
Q2 R10 100K
3
HT4900
VIN
ICC
ILED
VIN
VBAT VCV ICONST ITRKL IFULL TFULL VTRKL VRECHG FLED TC_LED VSD VSD1
L1 VIN VIN
CV
LED
GND
0
Min...
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