AAT3134 Datasheet, PDF (4/13 Pages) List of Unclassifed Manufacturers – High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications

AAT3134
High Efficiency 1X/1.5X Fractional
Charge Pump for White LED Applications
Electrical Characteristics¹
V_IN = 3.5V, C_IN = C_OUT = C₁ = C₂ = 1.0µF; T_A = -40°C to +85°C.
Unless otherwise noted, typical values are T_A = 25°C.
Symbol Description
Input Power Supply
V_IN
Operation Range
I_CC
Operating Current
I_SHDN
I_DX(MAX)
I_(D-Match)
Shutdown Current
Maximum Output Current
Current Matching Between
Any Two Outputs
Charge Pump Section
T_SS
F_CLK
Soft-Start Time
Clock Frequency
η_CP
Charge Pump Section Efficiency
EN/SET
V_EN(L)
V_EN(H)
T_{EN/SET LO}
T_{EN/SET HI}
T_OFF
Input Current
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minimum EN/SET High Time
EN/SET Off Timeout
EN/SET Input Leakage
Conditions
Min Typ Max Units
3.0 ≤ V_IN ≤ 5.5, Active,
No Load Current
EN/SET = 0
V_IN = 3.6, Code = 32
VD1:D4 = 3.6, V_IN = 3.5V
VD5:VD6 = 3.6, V_IN = 3.5V
2.7
5.5
V
1.8 3.5 mA
1.0 µA
18 20 22 mA
0.5
%
0.5
200
µs
1000
kHz
V_IN = 3.5V, I_OUT(TOTAL) = 120mA,
Measured from IN to OUT
93
%
V_EN/SET < 0.5
V_EN/SET > 1.4
V_EN/SET < 0.5
0.5
V
1.4
V
0.3
75 µs
50
ns
500 µs
-1.0
1.0 µA
1. The AAT3134 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
4
3134.2005.12.1.1