SGM3736 Datasheet, PDF (4/12 Pages) SG Micro Corp – PWM Dimming, 38V Step-Up LED Driver

SGM3736
PWM Dimming, 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
V_REF Filter 3dB Frequency
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 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
f_REF(3dB)
RDS(ON)
I_SW
I_LIM
f_S
D_MAX
V_OVP
t_S
Full 192
+25℃
+25℃
+25℃
+25℃ 1.0
Full
0.8
+25℃ 92
Measured at VOUT pin Full 35.5
+25℃
200 212.5
500
0.36 0.55
0.01
1
1.35 1.7
1.0 1.22
95
38
40.5
800
mV
Hz
Ω
μA
A
MHz
%
V
μs
VIL
Full
0.35
V
VIH
Full
1.5
V
t_OFF
+25℃
3
ms
150
℃
15
℃
NOTE:
1. The SGM3736 is guaranteed to meet performance specifications over the -40℃ to +85℃ operating temperature range by design,
characterization and correlation with statistical process controls.
SG Micro Corp
4
www.sg-micro.com