AMG-LL9910B Datasheet, PDF (7/15 Pages) alpha microelectronics gmbh – Universal High Voltage Single Channel LED Driver

AMG-LL9910B
Universal High Voltage Single Channel LED Driver
8.2. DC Characteristics
(Ta=25°C unless noted otherwise)
# Symbol Parameter
Min Typ
1 Vdd
Regulator output voltage
7.25 7.5
2
I ³⁾
ext
3 UVLO
Current for ext. circuitry (10V < Vin < 100V)
Undervoltage lockout (Vdd rising)
6.45 6.7
4 ΔUVLO Undervoltage lockout hysteresis (Vdd falling)
500
5
Vin low
6
Vin high
7
RPWMD
Input voltage logic low (PWMD)
Input voltage logic high (PWMD)
Pull down on PWMD pin
2
50
100
8 Vcs
Current sense threshold
225 250
10 Vgate low
Gate driver low output voltage (@10mA)
0
11 Vgate high
Gate driver high output voltage (@-10mA)
Vdd-0.3
12 Idd
Current consumption (shutdown), VPWM =0V
0.5
Note: ³⁾ Also limited by maximum power dissipation, whichever is lower.
Max Unit
7.75 V
0.7 mA
6.95 V
mV
0.8 V
V
150 kΩ
275 mV
0.3 V
Vdd V
1
mA
8.3. AC Characteristics
(Ta=25°C unless noted otherwise)
# Symbol Parameter
Min Typ Max Unit
1
fOSC
2
tblank
3
tdelay
4
trise
5
tfall
Oscillator frequency @ ROSC=1000kOhm
20 25 30 kHz
Oscillator frequency @ ROSC=226kOhm
80 100 120 kHz
Minimal gate on time (Current sense blanking time) 150 215 280 ns
Time from CS trip to Gate low
80 150 ns
Gate driver output rise time (Cgate = 500pF)
30 50 ns
Gate driver output fall time (Cgate = 500pF)
30 50 ns
AMG-LL9910B Revision: B
09/13/12
© All rights reserved Page 7 of 15