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Maxic Technology

MT7816 Datasheet Preview

MT7816 Datasheet

PWM dimming Non-isolated Buck Constant Current Driver

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MT7816
PWM dimming Non-isolated Buck
Constant Current Driver
DESCRIPTION
MT7816 is a high precision LED constant current
controller operating at critical conduction mode
(CRM) with zero current switched-on and peak
current switched-off. It’s mainly targeted for
non-isolated buck LED power systems and
PWM-dimmable application.
Critical conduction mode ensures that the
MT7816 turns on the internal power MOSFET
when the inductor current reaches zero, reducing
the power MOSFET switching loss, and
achieving more than 93% efficiency.
With critical conduction mode, and the input
compensation, MT7816 outputs high accuracy
LED current, and further achieves excellent line
regulation and load regulation.
MT7816 has wide working voltage range, which
is suitable for full-range AC input or 12V ~ 500V
DC input voltage. MT7816 provides various
protection features to improve the system
reliability, including over current protection (OCP),
short circuit protection (SCP), over voltage
protection (OVP) and over temperature
regulation (OTR), etc.
FEATURES
Internal 500V power MOSFET
Critical Conduction Mode, insensitive to the
inductance.
Supporting PWM dimming
High efficiency (up to 93%)
Highly accurate constant LED current
Cycle-by-cycle current limiting
LED short circuit protection
LED over voltage protection
Leading edge blanking technique
Under-voltage lockout (UVLO) protection
Over temperature regulation (OTR)
Available in SOP8 / DIP8 package
APPLICATIONS
LED tube, signal lamp, landscape lamp
LED stage light, etc
Intelligent LED lighting application
Typical Application Circuit
VM
Rst1
Vin_ac
Rst2
C1 C2
CO
MT7816
SW
VCC
DIM
GND
DRAIN
DRAIN
CS
Rcs
Email: sales@maxictech.com
Tel: 86-10-62662828
www.maxictech.com
Copyright © 2015 Maxic Technology Corporation
Rev. 1.25
Page 1




Maxic Technology

MT7816 Datasheet Preview

MT7816 Datasheet

PWM dimming Non-isolated Buck Constant Current Driver

No Preview Available !

ABSOLUTE MAXIMUM RATINGS
VCC maximum sink current
DRAIN (internal HV power MOSFET drain voltage)
DIM (PWM dimming pin input voltage)
CS (current sense pin input voltage)
PDMAX (maximum power dissipation)
Storage Temperature range
Junction Temperature(Tj)
MT7816
PWM dimming Non-isolated Buck
Constant Current Driver
5mA
-0.3V ~ 500V
-0.3V ~ 6V
-0.3V ~ 6V
0.8W (SOP8); 1.2W (DIP8)
-55°C ~ 150°C
150°C
RECOMMENDEDE OPERATING CONDITIONS
Operating Temperature range
Output Current ( SOP8)
Output Current ( DIP8)
-40°C ~ 105°C
<300mA
<360mA
Ordering information
Device
MT7816S
MT7816D
Package
SOP8
DIP8
PIN CONFIGURATIONS
GND
DIM
VCC
SW
18
27
36
45
(SOP8)
CS
NC
DRAIN
DRAIN
Chip Mark
MT7816
Pacakge code: D: DIP8
XX Y WW XX
S : SOP8
Manufacture code
Week code
Year code
Manufacture code
PIN DESCRIPTION
Name
GND
DIM
VCC
SW
DRAIN
NC
CS
Pin No.
SOP8
1
2
3
4
5/6
7
8
Pin No.
DIP8
1
2
3
4
5/6
7/8
Description
Ground
Dimming control input. Internal has a 300K pull_up resistor.
Power supply pin, internal clamped at 14V
Source of internal high-voltage power MOSFET, and internal
sense pin
Drain of internal high-voltage power MOSFET
No connection
Current sense input, connect a sense resistor to ground
Email: sales@maxictech.com
Tel: 86-10-62662828
www.maxictech.com
Copyright © 2015 Maxic Technology Corporation
Rev. 1.25
Page 2


Part Number MT7816
Description PWM dimming Non-isolated Buck Constant Current Driver
Maker Maxic Technology
Total Page 2 Pages
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