LP3928 Datasheet, PDF (5/11 Pages) National Semiconductor (TI) – High Speed Bi-Directional Level Shifter and Ultra Low-Dropout CMOS Voltage Regulator

Absolute Maximum Ratings (Notes 3,
4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V_BAT, V_CCB
V_CCA
A₁–A₃, EN, DIR
B₁–B₃, LatchClk
Junction Temperature
Storage Temperature
Lead Temperature (Note 27)
Pad Temperature (Note 27)
Power Dissipation (Note 5)
θ_JA (micro SMD), typical
−0.2V to +6.5V
−0.2V to +3.3V
−0.2V to V_CCA + 0.2V
−0.2V to V_CCB + 0.2V
150˚C
−65˚C to +150˚C
235˚C
235˚C
180˚C/W
Maximum Power Dissipation
micro SMD
ESD Rating (Note 6)
Human Body Model
360 mW
2 kV
Operating Conditions (Notes 3, 4)
V_BAT
V_CCA
V_CCB
Junction Temperature
Ambient Temperature
Maximum Power Dissipation (Note 8)
3.05V to 6.0V
1.65V to 1.95V
(Note 7)
−40˚C to +125˚C
−40˚C to +85˚C
220 mW
Electrical Characteristics Unless otherwise specified: H = V_IH min, L = V_IL max, C_VBAT = 1 µF, I_OUT = 1
mA, C_VCCB = 1 µF, C_VCCA = 1 µF. Typical values and limits appearing in standard typeface apply for T_J = 25˚C. Limits ap-
pearing in boldface type apply over the entire junction temperature range for operation, −40˚C to +125˚C. (Note 9)
Level Shifter DC Voltage Levels
Unless otherwise specified: EN1 = H, EN2 = X; 3.05V ≤ V_BAT ≤ 6V, 1.65V ≤ V_CCA ≤ 1.95V.
Symbol
Parameter
Conditions
Min
Typ
V_IHA
V_ILA
V_OHA
V_OLA
V_IHB
V_ILB
V_OHB
V_OLB
V_IHEN-DIR
V_ILEN-DIR
V_IHLatClk
V_ILLatClk
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Input Voltage
Low Level Input Voltage
For A Pins
For A Pins
For B Pins
I_OH=4 mA
I_OL=4 mA
For B Pins
I_OH=4 mA
I_OL=4 mA
For EN and DIR Pins
For LatchClk Pin
V_CCA*0.65
0
V_CCA−0.45
0
V_CCB*0.7
0
V_CCB*0.7
0
V_CCA*0.75
0
V_CCB*0.7
0
1.5
0.1
2.75
0.1
Max
V_CCA+0.2
V_CCA*0.35
V_CCA+0.2
V_CCA*0.25
V_CCB+0.2
V_CCB*0.3
V_CCB+0.2
V_CCB*0.2
V_CCA+0.2
V_CCA*0.27
V_CCB+0.2
V_CCA*0.3
Units
V
V
V
V
V
V
V
V
V
V
V
V
Level Shifter DC Current Levels
Unless otherwise specified: EN1 = H, EN2 = X; V_BAT = 6V or V_CCA = 1.95V as applicable to B or A respectively.
Symbol
Parameter
Conditions
Min Typ
Max
I_IA
I_{IDIR_EN}
Input Leakage Current Ai
Input Leakage Current
DIR/EN
Vi_A=0/1.9V, DIRi=H
(V_CCA = 1.8V when Vi_A = 1.9V)
Vi=0/1.9V (V_CCA = 1.8V when Vi =
1.9V)
0.001
±2
0.001
±2
(Note 11)
I_IB
Input Leakage Current Bi,
Vi_B=0/2.95V, DIRi=L
LatchClk (Note 12)
0.001
±2
I_CHA→B
Static I_CCB Current/Channel
Static I_CCB Current Total
(Notes 13, 17)
EN2=H, DIRi=H,
Total Includes I_BCOM
550
2050
875
3330
I_CHB→A
Static I_CCB Current/Channel
Static I_CCB Current Total
(Notes 14, 17)
EN2=L, DIRi=L
Total Includes I_BCOM
2
30
406
840
Units
µA
µA
µA
µA
µA
5
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