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LM3556TMX/NOPB bảng dữ liệu(PDF) 3 Page - Texas Instruments

tên linh kiện LM3556TMX/NOPB
Giải thích chi tiết về linh kiện  LM3556 1.5-A Synchronous Boost LED Flash Driver With High-Side Current Source
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nhà sản xuất  TI2 [Texas Instruments]
Trang chủ  https://www.ti.com
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LM3556TMX/NOPB bảng dữ liệu(HTML) 3 Page - Texas Instruments

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A1
A2
B1
B2
B3
A3
C2
C1
C3
D2
D3
A4
B4
C4
D4
D1
LM3556
www.ti.com
SNVS796D – AUGUST 2011 – REVISED OCTOBER 2015
5 Pin Configuration And Functions
YFQ Package
16-Pin DSBGA
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
NUMBER
NAME
High-side current source output for flash LED. Both pins must be connected for proper
A1, B1
LED
Power
operation.
Step-up DC-DC converter output. Connect a 10-µF ceramic capacitor between this pin
B2, A2
OUT
Power
and GND.
B3, A3
SW
Power
Drain connection for internal NMOS and synchronous PMOS switches.
A4, B4
GND
Ground
Ground
C1
TEMP
Power
Threshold detector for LED temperature sensing and current scale back.
Active high hardware torch enable. Drive TORCH high to turn on Torch or Movie mode.
C2
TORCH
Power
Used for external PWM Mode. Has an internal pulldown resistor of 300 k
Ω between
TORCH and GND.
Active high hardware flash enable. Drive STROBE high to turn on flash pulse. STROBE
C3
STROBE
I/O
overrides TORCH. Has an internal pulldown resistor of 300 k
Ω between STROBE and
GND.
Input voltage connection. Connect IN to the input supply, and bypass to GND with a 10-
C4
IN
Input
µF or larger ceramic capacitor.
Configurable dual polarity power amplifier synchronization input. Has an internal pulldown
D1
TX
I/O
resistor of 300 k
Ω between TX and GND.
D2
SDA
I/O
Serial data input/output.
D3
SCL
Input
Serial clock input.
Active high enable pin. High = standby, low = shutdown/reset. There is no internal
D4
ENABLE
Power
pulldown resistor on this pin.
Copyright © 2011–2015, Texas Instruments Incorporated
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Product Folder Links: LM3556



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