AAT1168 Datasheet, PDF (5/22 Pages) Advanced Analog Technology, Inc. – TRIPLE-CHANNEL TFT LCD POWER SOLUTION WITH OPERATIONAL AMPLIFIERS

Advanced Analog Technology, Inc.
May 2008
AAT1168/1168A/1168B
ELECTRICAL CHARACTERISTICS
( V_DD = 2.6V to 5.5V, T_C = –40 ° C to 85 ° C , unless otherwise specified. Typical values are tested at 25 ° C ambient
temperature, V_DD = 5V, V_DD1 = 10V.)
Soft Start & Fault Detect
PARAMETER
Channel 1 Soft Start Time
Channel 2 Soft Start Time
Channel 3 Soft Start Time
SYMBOL
t _SS1
t _SS2
t _SS3
TEST CONDITION
MIN TYP MAX UNIT
14
ms
14
ms
14
ms
Channel 1 to Channel 2 Delay
t _D12
AAT1168A Only
7
ms
Channel 2 to Channel 3 Delay
t _D23
During Fault Protect Trigger Time
t _FP
IN1 Fault Protection Voltage
V_F1
IN2 Fault Protection Voltage
V_F2
IN3 Fault Protection Voltage
V_F3
AAT1168A Only
AAT1168/AAT1168B
AAT1168A
AAT1168/AAT1168B
AAT1168A
7
ms
55
ms
165
ms
1.00 1.05 1.10 V
1.13 1.17 1.20 V
0.40 0.45 0.50 V
1.00 1.05 1.10 V
Error Amplifier (Channel 1)
PARAMETER
Feedback Voltage
Input Bias Current
SYMBOL
V_IN1
I_B1
Feedback-Voltage Line Regulation
V_RI1
Transconductance
G_m
Voltage Gain
A_V
TEST CONDITION
V_IN1= 1V to 1.5V
Level to Produce
V_EO = 1.233V
2.6V < V_DD < 5.5V
∆I = 5 µ A
MIN
1.221
–40
TYP
1.233
0
MAX
1.245
40
UNIT
V
nA
0.05 0.15 %/V
105
µS
1,500
V/V
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