AIC1571 Datasheet, PDF (3/18 Pages) Analog Intergrations Corporation – 5-bit DAC, Synchronous PWM Power Regulator with Dual Linear Controllers

AIC1571
ELECTRICAL CHARACTERISTICS (V_cc=12V, T_J=25°C, Unless otherwise speci-
fied)
PARAMETER
TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
VCC SUPPLY CURRENT
Supply Current
UGATE, LGATE, GATE2
I_CC
and GATE3 open
1.8
5
mA
POWER ON RESET
Rising VCC Threshold
V_OCSET=4.5V
VCC_THR
8.6
9.5
10.4
V
Falling VCC Threshold
V_OCSET=4.5V
VCC_THF
8.2
9.2
10.2
V
Rising VIN2 Under-Voltage
Threshold
VIN2_THR
2.5
2.6
2.7
V
VIN2 Under-Voltage Hys-
teresis
VIN2_HYS
130
mV
Rising V_OCSET1 Threshold
OSCILLATOR
V_OCSETH
1.3
V
Free Running Frequency
RT=Open
F
170
200
230 KHz
Ramp. Amplitude
REFERENCE AND DAC
RT=open
∆V_OSC
1.3
V_P-P
DAC (VID0~VID4) Input Low
Voltage
VID_L
0.8
V
DAC (VID0~VID4) Input
High Voltage
VID_H
2
V
DACOUT Voltage Accuracy VDAC=1.3V~3.5V
-1.0
+1.0
%
FB2 Reference Voltage
V_REF2
1.245 1.270 1.295
V
FB3 Reference Voltage
V_REF3
1.250 1.275 1.300
V
3