AT9933
Symbol
Reference
REF pin voltage
-40°C < T
A
< +85°C
REF pin voltage
-40°C < T
A
< +125°C
Line regulation of reference
voltage
-
-
1.212
1.187
1.25
1.25
1.288
V
1.312
REF bypassed with a 0.1µF
capacitor to GND, I
REF
= 0,
PWMD = 5.0V
REF bypassed with a 0.1µF
capacitor to GND, I
REF
= 0,
V
DD
= 7.0 – 9.0V, PWMD = 5.0V
REF bypassed with a 0.1µF
capacitor to GND, I
REF
= 0;
V
DD
= 7.0 – 9.0V, PWMD = 5.0V
REF bypassed with a 0.1µF
capacitor to GND, I
REF
= 0 - 500µA,
PWMD = 5.0V
V
DD
= 7.0V – 9.0V
V
DD
= 7.0V – 9.0V
V
PWMD
= 5.0V
---
V
GATE
= 0V
V
GATE
= V
DD
C
GATE
= 500pF
C
GATE
= 500pF
CS2 = 200mV; CS1 increasing;
GATE goes LOW to HIGH
CS2 = 200mV; CS1 decreasing;
GATE goes HIGH to LOW
CS2 = 200mV;
CS1 = 50mV to +200mV step
CS2 = 200mV;
CS1 = 50mV to -100mV step
Description
Min
Typ
Max
Units
Conditions
V
REF
V
REFLINE
-
0
-
20
mV
I
REF
Reference output current range
-
-0.01
500
µA
V
REFLOAD
Load regulation of reference
voltage
-
0
-
10
mV
PWM Dimming
PWMD input low voltage
V
PWMD(hi)
R
PWMD
I
PWMD
GATE
I
SOURCE
I
SINK
T
RISE
T
FALL
GATE short circuit current
GATE sinking current
GATE output rise time
GATE output fall time
-
-
-
-
0.165
0.165
-
-
-
-
30
30
-
*
*
-
-
-
2.0
50
-
-
-
100
-
0.8
-
150
5
V
V
kΩ
mA
A
A
ns
ns
PWMD input high voltage
PWMD pull-down resistance
Maximum current into PWMD pin
-
50
50
Input Current Sense Comparator
V
TURNON1
V
TURNOFF1
T
D1,ON
T
D1,OFF
Voltage required to turn GATE on
Voltage required to turn GATE off
Delay to output (turn on)
Delay to output (turn off)
*
*
-
-
85
-15
-
-
100
0
150
150
115
15
250
250
mV
mV
ns
ns
Output Current Sense Comparator
V
TURNON2
V
TURNOFF2
T
D2,ON
T
D2,OFF
Voltage required to turn GATE on
Voltage required to turn GATE off
Delay to output (turn on)
Delay to output (turn off)
*
*
-
-
85
-15
-
-
100
0
150
150
115
15
250
250
mV
mV
ns
ns
CS1 = 200mV; CS2 increasing;
GATE goes LOW to HIGH
CS1 = 200mV; CS2 decreasing;
GATE goes HIGH to LOW
CS1 = 200mV;
CS2 = 50mV to +200mV step
CS1 = 200mV;
CS2 = 50mV to -100mV step
1 Also limited by package power dissipation limit, whichever is lower.
2 Depends on the current drawn by the part - see application section.
3
SUPERTEX [ Supertex, Inc ]
