Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
VIN, SENSE to GND. . -0.3V to +40V(42V for 0.5 sec)
DIM, TH, VCC, Gate to GND. . . . . . . . . . . -0.3V to 6V
Thermal Resistance of Junction to Ambient (θ
JA
)
MSOP-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . 180°C/W
(1)
MSOP-8 (FD) . . . . . . . . . . . . . . . . . . . . . . . .120°C/W
(2)
Continuous Power Dissipation (T
A
= +25°C)
MSOP-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.69W
(1)
MSOP-8 (FD) . . . . . . . . . . . . . . . . . . . . . . . . . . 1.04W
(2)
G2605
Thermal Resistance Junction to Case, (θ
JC
)
MSOP-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38°C/W
MSOP-8 (FD). . . . . . . . . . . . . . . . . . . . . . . . . . .60°C/W
Operating Temperature. . . . . . . . . . . . . . -30 to 105°C
Junction Temperature. . . . . . . . . . . . . . . . . . . . 150°C
Storage Temperature. . . . . . . . . . . . . . -65°C to 125°C
Reflow Temperature (soldering, 10sec) . . . . . .260°C
ESD Susceptibility
HBM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2kV
MM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200V
Note:
(1)
(2)
: Please refer to Minimum Footprint PCB Layout Section.
: Please refer to 1in
2
of 1oz PCB Layout Section.
Electrical Characteristics
(VIN=12V, L=47µH, 1*LED, LED Current=370mA, T
A
=+25°C)
The device is not guaranteed to function outside its operating conditions. Parameters with MIN and/or MAX limits are 100%
tested at +25°C, unless otherwise specified.
Parameter
Input voltage
Under Voltage Threshold
Quiescent supply current with output
off
Quiescent supply current with output
switching
Mean current sense threshold volt-
age(Defines LED current setting ac-
curacy)
Sense threshold hysteresis
SENSE pin input current
Gate Pull High Resistance
Gate Pull Low Resistance
Operating frequency
VCC Output Voltage
VCC Output Current
Logic High
DIM Input level
Analog DIM
Logic Low
Thermal protection Input level
DIM Low Shutdown Delay
Thermal Shutdown
Thermal Shutdown Hysteresis
Minimum ON time
Minimum OFF time
Symbol
V
IN
V
SU
V
SD
I
INQoff
I
INQon
V
SENSE
V
SENSEHYS
I
SENSE
R
Gate,hi
R
Gate,lo
f
LX
V
CC
I
CC
V
DIM_H
V
DIM_DC
V
DIM_L
V
TH
t
d,DIM
Tsd
Condition
V
IN
rising.
V
IN
falling.
V
DIM
< 0.18V.
DIM pin floating, f=250kHz.
Measured on SENSE pin with
respect to V
IN
. L=47µH,
I
OUT
=370mA.
V
SENSE
=V
IN
-0.1V
PMOS on resistance
NMOS on resistance
DIM floating, L=47µH,
I
OUT
=370mA.
Min.
7
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95
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1.3
0.3
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Typ.
---
6.0
5.5
20
1.8
100
±15
5
12
4.2
420
5.0
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0.082 *
VCC
10
150
30
240
300
Max.
36
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40
5.0
105
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10
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0.5
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1.23
0.18
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Unit
V
V
V
µA
mA
mV
%
µA
Ω
Ω
kHz
V
mA
V
V
V
V
ms
°C
°C
ns
ns
t
ON_min
t
OFF_min
LX switch on.
LX switch off.
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Ver: 0.4
Oct 08, 2010
TEL: 886-3-5788833
http://www.gmt.com.tw
2
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
