GM9910B Datasheet, PDF (5/8 Pages) Gamma Microelectronics Inc. – UNIVERAL HIGH BRIGHTNESS LED DRIVER

GM9910B
UNIVERAL HIGH BRIGHTNESS
LED DRIVER
Electrical Characteristics ⁽T_A = 25°C, unless otherwise specified)
Parameter
Input DC supply voltage
range
Shut-Down mode
supply current
Internally regulated
voltage
Maximum VDD voltage
VDD current available
for external circuitry
VDD under voltage
lockout threshold
VDD under voltage
lockout hysteresis
Pin PWMD input low
voltage
Pin PWMD input high
voltage
Pin PWMD pull-down
resistance
Current sense pull-in
threshold
GATE high output
voltage
GATE low output
voltage
Oscillator frequency
Maximum Oscillator
PWM Duty Cycle
Linear Dimming pin
voltage range
Current sense blanking
interval
Delay from CS trip to
GATE lo
Symbol
V_INDC
I_INSD
VDD
VDD_max
IDD(ext)
UVLO
　ΔUVLO
VEN(lo)
VEN(hi)
REN
VCS(hi)
VGATE(hi)
VGATE(lo)
f_OSC
D_MAXhf
VLD
t_BLANK
t_DELAY
Test Conditions
DC Input Voltage
Pin PWMD to GND, VIN = 8V
VIN = 10 to 500V, IDD(ext)=0, pin
GATE is open
When an external voltage applied
to pin VDD
VIN = 10–100V
VIN rising
VIN falling
VIN = 10–500V
VIN = 10–500V
Pin PWMD = 5V
T_A = -40°C to +85°C
I_OUT = 10mA
I_OUT = -10mA
R_T = 1.00MΩ
R_T = 226kΩ
f_PWMhf = 25kHz, at GATE, CS to
GND.
T_A ≤ 85°C, VIN = 12V
VCS = 0.55VLD, VLD = VDD
VIN = 12V, VLD = 0.15, VCS = 0
to 0.22V after t_BLANK
Min
10
0.5
7.0
6.45
2.4
50
243.5
VDD-0.3
0
20
80
0
150
GATE output rise time
t_RISE
C_GATE = 500pF
30
Typ Max Unit
500 V
1.0 mA
7.5
8.0
V
10
V
1.0 mA
6.7 6.95 V
500
mV
1.0
V
V
100 150 kΩ
250 257.5 mV
VDD V
0.3
V
25
30
kHz
100 120
100%
250 mV
215 280
ns
300
ns
50
ns
GATE output fall time
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
t_FALL
T_TST
T_HYS
C_GATE = 500pF
30
50
ns
150
°C
40
°C
5