SGM3735 Datasheet, PDF (4/13 Pages) SG Micro Corp – 38V Step-Up LED Driver

SGM3735
38V Step-Up LED Driver
ELECTRICAL CHARACTERISTICS ⁽¹⁾
(V_IN = 3.6V, L = 10μH, C_IN = 10μF, C_OUT = 0.47μF, Full = -40℃ to +85℃, typical values are at T_A = +25℃, unless otherwise noted.)
PARAMETER
IC SUPPLY
Input Voltage Range
Input Under-Voltage Lockout
UVLO Hysteresis
Quiescent Current (Non Switching)
Operating Current (Switching)
VIN Pin Shutdown Current
STEP-UP CONVERTER
Voltage Feedback Regulation Voltage
NMOS On-Resistance
SW Pin Leakage Current
Peak NMOS Current Limit
Oscillator Frequency
Maximum Duty Cycle
Over-Voltage Threshold
Start-Up Time
CONTROL
Logic Low Threshold
Logic High Threshold
Minimum Logic High Pulse Width Timing
Logic Low Pulse Width Timing
Minimum Shutdown Pulse Width Timing
Junction Thermal Shutdown Threshold
Junction Thermal Shutdown Hysteresis
SYMBOL
CONDITIONS
TEMP MIN TYP MAX UNITS
VIN
UVLO
V_HYS
IQ
ISHDN
Rising edge
V_FB = 0.4V
VFB = 0V
VEN = 0V
Full
2.7
5.5
V
+25℃
2.5
2.6
V
+25℃
0.15
V
+25℃
0.20 0.35
mA
+25℃
0.72 1.20
mA
+25℃
0.1
1
μA
VREF
R_DS(ON)
ISW
I_LIM
f_S
D_MAX
V_OVP
t_S
Full 192
+25℃
+25℃
+25℃ 1.0
Full
0.8
+25℃ 92
Measured at VOUT pin Full 35.5
+25℃
200 212.5
0.36 0.55
0.01
1
1.35 1.7
1.0 1.22
95
38
40.5
800
mV
Ω
μA
A
MHz
%
V
μs
VIL
V_IH
t_{HIGH_MIN}
t_LOW
tOFF
Full
0.35
V
Full
1.5
V
+25℃ 0.4
μs
+25℃ 0.4
750
μs
+25℃
3
ms
150
℃
15
℃
NOTE:
1. The SGM3735 is guaranteed to meet performance specifications over the -40℃ to +85℃ operating temperature range by design,
characterization and correlation with statistical process controls.
4
SG Micro Corp
www.sg-micro.com