MIC5162 Datasheet, PDF (3/11 Pages) Micrel Semiconductor – Dual Regulator Controller For High-Speed Bus Termination

MIC5162
Absolute Maximum Ratings (Note 1)
Supply Voltage (V_CC) ...................................................... 7V
Supply Voltage (V_DDQ) .................................................... 7V
Enable Input Voltage (V_EN) ............................................. 7V
Junction Temperature Range ............ –40°C < T_J < +125°C
Micrel, Inc.
Operating Ratings (Note 2)
Supply Voltage (V_CC) ............................................ 3V to 6V
Supply Voltage (V_DDQ) ....................................... 1.35V - 6V
Enable Input Voltage (V_EN) .................................. 0V to VIN
Electrical Characteristics
T_A = 25°C with V_DDQ = 2.5V; V_CC = 5V; V_EN = V_CC; bold values indicate –40ºC<T_J<+125ºC; unless otherwise specified. See test
circuit 1 for test circuit configuration.
Parameter
Condition
Min Typ Max Units
V_REF Voltage
V_TT Voltage Accuracy (Note 2)
Sourcing; 100mA to 3A
–1% 0.5V_DDQ 1%
V
–5
0.4
5
mV
–10
–10
Sinking; –100mA to –3A
–5
0.6
5
mV
–10
10
Supply Current (I_DDQ)
V_EN = 1.2V (controller ON)
No Load
120 140
µA
200
Supply Current (I_CC)
No Load
15
20
mA
25
I_CC Shutdown Current (Note 3)
Start–up Time (Note 4)
V_EN = 0.2V (controller OFF)
V_CC, = 5V external bias; V_EN = V_IN
10
35
µA
8
15
µs
30
Enable Input
Enable Input Threshold
Regulator enable
1.2
V
Regulator shutdown
0.3
V
Enable Hysteresis
40
mV
Enable Pin Input Current
Drive
V_IL < 0.2V (controller shutdown)
V_IH > 1.2V (controller enabled)
0.01
µA
5.5
µA
High Side Gate Drive Voltage
High Side MOSFET Fully ON
4.8 4.97
V
High Side Gate Drive Voltage
High Side MOSFET Fully OFF
0.03 0.2
V
Low Side Gate Drive Voltage
Low Side MOSFET Fully ON
4.8 4.97
V
Low Side Gate Drive Voltage
Low Side MOSFET Fully OFF
0.03 0.2
V
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum ratings may damage the device.
The V_TT voltage accuracy is measured as a delta voltage from the reference output (V_TT – V_REF).
Shutdown current is measured only on the V_CC pin. The V_DDQ pin will always draw a minimum amount of current when voltage is applied.
Start-up time is defined as the amount of time from V_EN = V_CC to HSD = 90% of V_CC.
February 2005
3
M9999-092004