LM34904 Datasheet, PDF (3/9 Pages) Texas Instruments – 500mA Current Limited Power Switch

LM34904
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for
availability and specifications.
VCC
ENABLE, POK, ACC_DET,
ACC_PWR (Note 2)
Junction Temperature (T_J)
Storage Temperature Range
ESD Susceptibility
Human Body Model (Note 3)
-0.3V to 6V
-0.3V to 6V
+150°C
−65°C to +150°C
2kV
Operating Ratings
VCC Voltage (Note 4)
Junction Temperature (T_J)
LM34904
2.8V to 5.3V
-40°C to +85°C
Electrical Characteristics
Unless otherwise stated, the following conditions apply: VCC = 3V. Limits in standard type are for T_J = 25°C only; limits in bold-
face type apply over the operating juction temperature (T_J) range. Minimum and maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at T_J = 25°C and are provided for reference
purposes only.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V_IL
Input Low Voltage,
ACC_DET, ENABLE
0.45
V
V_IH
Input High Voltage,
ACC_DET, ENABLE
1.35
V
V_IHS
Input Hysteresis,
ACC_DET, ENABLE
55
mV
I_LK
Input Current, ACC_DET, ACC_DET, ENABLE between 0V and
ENABLE
VCC
1
µA
I_SD
VCC Current in Shutdown
Mode
V_ENABLE = 0V
V_VCC = 5.3V
I_Q
VCC Quiescent Current
V_ENABLE = 1.8V
V_VCC = 5.3V, I_{ACC_PWR} = 0A
R_ON
Total On Resistance
Between VCC and
ACC_PWR Pins
V_VCC = 2.8V to 5.3V
I_{ACC_PWR} = 0.5A
0.005
1
µA
47
100
µA
0.4
0.6
Ω
I_{LK_ACC}
I_LIMIT
V_POK
I_POK
T₁
ACC_PWR Leakage
Current When PFET is Off
V_{ACC_PWR} = 0V to VCC
V_VCC = 5.3V
V_ENABLE = 0V
PFET Switch Current Limit ^{VVCC = 2.8V to 5.3V}
V_{ACC_PWR} = 0V
POK Current Sink Capability POK asserted. 1mA sink current
POK Leakage Current
ACC_DET Response Time
POK de-asserted
V_POK = 3.3V
ACC_DET rising to either PFET or POK
FET turn-off
0.50
1
µA
0.59
0.76
A
0.4
V
1
µA
107
ns
T₂
ENABLE Response Time
ENABLE rising to either PFET or POK
FET turn-on
10
µs
T₃
Minimum ENABLE Cycle
Time (Note 5)
ACC_DET tied to ground. ENABLE logic
high = 1.8V. VCC = 2.8V to 5.3V.
300
ns
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