AAT3190
Positive/Negative Charge Pump for Voltage Bias
Electrical Characteristics
VIN = 5.0V, CREF = 0.1µF, TA = -40°C to +85°C. Unless otherwise noted, typical values are TA = 25°C.
Symbol Description Conditions Min Typ Max Units
VIN
UVLO
IIN
Input Supply Range
Input Under-Voltage Threshold
2.7
0.8
5.5
V
V
V
IN Rising
1.8
1.6
400
VIN Falling, 40mV Hysteresis (typ)
Input Quiescent Supply Current VFBP = 1.5V, VFBN = -0.2V,
No Load on DRVN and DRVP
800
µA
ISD
Shutdown Supply Current
Operating Frequency
VEN = 0V
0.1
1.0
1.0
1.2
µA
FOSC
MHz
Negative Low-Power Charge Pump
VFBN
IFBN
FBN Regulation Voltage
FBN Input Bias Current
DRVN NCH On-Resistance
-100
-100
0
+100
+100
5.0
mV
nA
Ω
Ω
kΩ
VFBN = -50mV
RDSNCHN
1.5
1.0
20
RDSPCHMIN MIN DRVN PCH On-Resistance VFBN = 100mV, VIN = 4V
RDSPCHMAX MAX DRVN PCH On-Resistance VFBN = -100mV, VIN = 4V
Positive Low-Power Charge Pump
5.0
VFBP
IFBP
FBP Regulation Voltage
FBP Input Bias Current
DRVP PCH On-Resistance
1.15
-60
1.2
1.25
+100
5.0
V
nA
Ω
Ω
kΩ
VFBP = 1.5V
RDSPCHP
1.0
3
RDSNCHMIN MIN DRVP NCH On-Resistance VFBP = 1.15V, VIN = 4V
RDSNCHMIN MAX DRVP NCH On-Resistance VFBP = 1.25V, VIN = 4V
Reference
15
20
Reference Voltage
Reference Under-Voltage
Threshold
-2.0µA < IREF < 50µA
VREF Rising
1.18
1.5
1.2
0.8
1.22
V
V
VREF
Logic Signals
VIL
VIH
IIL
Input Low Voltage
0.5
V
V
Input High Voltage
Enable Input Low Current
Enable Input High Current
VIN = 5.0V, FBP = 1.5V, FBN = -0.2V
VIN = 5.0V, FBP = 1.5V, FBN = -0.2V
1
1
µA
µA
IIH
Thermal Limit
TSD
Over-Temperature Shutdown
Threshold
140
15
°C
°C
THYST
Over-Temperature Shutdown
Hysteresis
4
3190.2006.01.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
