RT9591 Datasheet, PDF (6/13 Pages) Richtek Technology Corporation – Smart Photoflash Capacitor Charger with IGBT Driver

RT9591
Preliminary
Parameter
Symbol
Test Conditions
Min Typ Max Units
Charge Input High Threshold
--
0.7
1.3
V
Charge Input Low Threshold
Minimum Off Time
IGBT Driver
V_BAT = 1.8V to 6.5V
V_DD = 1.8V to 6.5V
0.4
0.7
--
V
280
360 430
ns
IGBT Driver Supply Voltage
DRVIN Input High Threshold
V_VDRV
2.0
--
5.5
V
--
1.0
1.3
V
DRVIN Input Low Threshold
DRVOUT On Resistance to V_VDRV
DRVOUT On Resistance to GND
Propagation Delay (Rising)
Propagation Delay (Falling)
Voltage Detector
0.4
V_VDRV = 3.3V
--
V_VDRV = 3.3V
--
V_BAT = 1.8V to 6.5V
--
V_DD = 1.8V to 6.5V
V_VDRV = 2V to 6.5V(Note 3)
--
1
--
V
6
8
Ω
6
8
Ω
--
20
ns
--
200
ns
Voltage Detector Trip (Falling)
VDOUT On Resistance to GND
V_FBVD
FBVD Falling
V_DD = 3.3V
0.96 0.99 1.02
V
--
16
19
Ω
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. VDRV is the IGBT gate driving power. Therefore, setting VDRV voltage must consider IGBT gate threshold voltage, and
its driving capability.
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6
Patent Pending
DS9591-07 August 2007