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GM9623 Datasheet, PDF (4/6 Pages) Gamma Microelectronics Inc. – Requires low inductance value
GM9623
350mA, High Voltage LED driver
with Build in Power FET
Electrical Characteristics (TA = 25°C, Vd = 320V, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Internal regulator output
Vdd
7.5
V
Supply current
Id
400 800 µA
Supply voltage
Vdrain
20
320 450
V
Breakdown voltage
Vdb
550
V
On-resistor
Average current
Leading edge blanking delay
Ron
Iom
L1 = 4.7mH, Co = 0.1uF,
Vom =50V (16 LEDs)
Tb
15
Ω
340
350 360 mA
200
300 400
ns
Minimum on-time
Ton
650 ns
Off-time
Toff
8
12
18
ns
4