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AOZ1935
Electrical Characteristics
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
IC SUPPLY
V IN
AVCC
Boost Converter Input Range
IC Supply Voltage Range
2.7
2.7
25
5.5
V
V
UVLO
UVLO HYST
I Q
I SHDN_AVCC
I SHDN_VIN
IC Supply Under Voltage Lockout
UVLO Hysteresis
IC Standby Current
IC Operating Current
AVCC Pin Shutdown Current
V IN Pin Shutdown Current
Rising Edge
Not Switching
Switching
EN = GND
EN = GND
2.5
0.15
0.5
1.15
0.1
0.1
2.65
1.0
1.0
V
V
mA
mA
μA
μA
STEP-UP CONVERTER
R DS(ON)
I LIM
F SW
NMOS On-resistance
Peak NMOS Current Limit
Oscillator Frequency
0.35
2.5
800
?
A
kHz
D max
V OV
V OVP
T S
Maximum Duty Cycle
OV Pin Threshold
Internal OVP – V OUT Threshold
Start-up Time
92
95
1.2
40
1
%
V
V
ms
CURRENT SINK
I D
Output Current Accuracy
Current Setting = 20mA
(DATA = 1), T A =25°C
±1
±4
%
Current Setting = 20mA
(DATA = 1)
±1
±6
Output current matching (3)
Current Setting = 20mA
1.5
3.5
%
(DATA = 1)
V_sov
Current Sink Over-voltage Threshold
6.0
V
T FAULT
Current Sink Fault Delay
PWM 100% Duty Cycle
80
ms
CONTROL
V TH-L
V TH-H
T PWM(ON)_MIN
EN, PWM Pin Logic Low Threshold
EN, PWM Pin Logic High Threshold
Minimum PWM On Time
1.4
1
0.4
V
V
μs
F PWM
T J-TH
PWM Dimming Frequency
IC Junction Thermal Shutdown
Threshold
IC Junction Thermal Shutdown
100
150
15
30000
Hz
°C
? C
Hysteresis
Note:
3.The device is guaranteed to meet performance specifications over the –40°C to +85°C operating temperature range by design, characterization
and correlation with statistical process controls.
4.The current matching between channels is defined as |Id-Iavg|max/Iavg .
Rev. 1.2 June 2013
www.aosmd.com
Page 6 of 15
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