AAT1235IRN-T1 AnalogicTech, AAT1235IRN-T1 Datasheet - Page 4

• Manufacturer Part Number: AAT1235IRN-T1
• Description: High Efficiency White LED Drivers for Backlight and Keypad
• Manufacturer: AnalogicTech

1. The AAT1235 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range is assured by design, characterization, and correlation
Electrical Characteristics
V
4
SwitchReg
Symbol Description
Power Supply
EN/SET Input
Thermal Protection
IN
I
I
V
T
with statistical process controls.
R
T
DX-Matching
R
SHDN(MAX)
EN/SET LO
EN/SET HI
I
OUT(MAX)
V
V
T
V
DS(ON)IN
DS(ON)N
I
= 3.6V; C
T
T
EN/SET
I
T
T
V
V
I
I
I
LIMIT
EN(H)
J-HYS
UVLO
EN(L)
SET
J-TH
OX
DX
OFF
LAT
CC
SS
OV
IN
Input Voltage Range
Maximum Output Voltage
UVLO Threshold
Operating Current (No Switching)
IN Pin Shutdown Current
Maximum Continuous Output Current
Current Sink Accuracy
Current Matching Between Any Sink
Channels
Soft-Start Time
OVP Threshold Voltage
OVP Threshold Hysteresis
Low Side Switch On Resistance
Input Disconnect Switch
Current Set Ratio
Input Switch Current Limit
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Input Leakage
T
T
J
J
IN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
TM
= 2.2μF;T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
High Efficiency White LED Drivers for Backlight and Keypad
1
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Conditions
V
Hysteresis
V
B1 = B2 = A1 = A2 = A3 = 1.2V, 2mA Setting,
R
EN = GND
V
R
R
From Enable to Output Regulation; V
V
I
I
I
V
OUT
OUT
SINK
IN
IN
SET
O
SET
SET
OUT
EN/SET
= 24V
Rising
Falling
/I
= 100mA
= 100mA
= 226kΩ
= 22.6kΩ
= 22.6kΩ, A1 = A2 = A3 = B1 = B2 = 0.4V
Rising
RSET
= V
, V
IN
RSET
= 5V
= 0.6V
FB
= 300mV
PRODUCT DATASHEET
Min Typ Max
AAT1235
100
2.7
1.8
1.1
1.2
1.4
0.3
18
A
-1
= 25°C.
150
300
100
200
760
140
1.2
20
80
15
2
1235.2009.09.1.2
300
500
500
5.5
2.7
1.0
1.3
0.4
24
22
75
75
5
1
Units
mΩ
mΩ
A/A
mV
mA
mA
mV
μA
μA
μA
μs
μs
μs
μs
μs
°C
°C
%
V
V
V
V
V
A
V
V