Micrel
MIC2586/MIC2586R
Absolute Maximum Ratings(1)
Operating Ratings(2)
(All voltages are referred to GND)
Supply Voltage (VCC)......................................... +10V to +80V
Ambient Temperature Range (TA) ..................-40°C to +85°C
Junction Temperature (TJ) .......................................... +125°C
Package Thermal Resistance (θJA)
Supply Voltage (VCC) pin.............................. –0.3V to +100V
GATE pin........................................................ –0.3V to +100V
ON, SENSE pins............................................ –0.3V to +100V
PWRGDx, /PWRGDx pins ............................. –0.3V to +100V
FB pin............................................................. –0.3V to +100V
TIMER, CPG pins............................................... –0.3V to +6V
ESD Rating
14-pin SOIC.......................................................120 °C/W
Human Body Model.................................................... 2kV
Machine Model .........................................................200V
Lead Temperature (Soldering)
Standard Package (-xBM)
IR Reflow ........................................240°C + 0°C/-5°C
Lead-Free Package (-xYM)
IR Reflow........................................260°C + 0°C/-5°C
DC Electrical Characteristics(4)
VCC = +24V and +48V, TA = 25°C, unless otherwise noted. BOLD indicates specifications apply over the full operating
temperature range of -40°C to +85°C.
Symbol
VCC
Parameter
Condition
Min
10
Typ
Max
80
Units
V
Supply Voltage
ICC
Supply Current
2
5
mA
V
VUVH
VUVL
VHYSLO
VFBH
VFBL
Supply Voltage Undervoltage Lockout
VCC rising
7.5
7.0
8.0
8.5
8.0
V
CC falling
7.5
V
VCC Undervoltage Lockout Hysteresis
Feedback Pin Voltage High Threshold
Feedback Pin Voltage Low Threshold
Feedback Voltage Hysteresis
500
1.313
1.233
80
mV
V
FB Low-to-High transition
FB High-to-Low transition
1.280
1.208
1.345
1.258
V
VHYSFB
∆VFB
IFB
mV
mV/V
FB Pin Threshold Line Regulation
FB Pin Input Current
-0.05
-1
0.05
1
10V ≤ VCC ≤ 80V
0V ≤ VFB ≤ 3V
µA
mV
mV
V
VTRIP
Circuit Breaker Trip Voltage, VCC-VSENSE
VFB = 0V (See Fig. 1)
VFB = 1V (See Fig. 1)
+10V ≤ Vcc ≤ +80V
Start cycle, VGATE = 7V
(VCC - VSENSE) = (VTRIP + 10mV)
5
12
47
17
39
55
MOSFET Gate Drive, VGATE-VCC
GATE Pin Pull-up Current
7.5
-10
30
18
∆VGATE
IGATEON
IGATEFLT
-16
80
-22
200
µA
GATE Pin rapid pull-down current (in
fault condition, until VGATE =
VGATE[TH])
mA
V
GATE = 5V
IGATEOFF
ITIMERUP
GATE Pin Turn-off Current
Normal turn-off, or from VGATE[TH]
(MOSFET) to 0V after a fault condition
1.8
-65
mA
TIMER Pin Charging Current
(VCC – VSENSE) > VTRIP
VTIMER = 0V
-24
1.5
-120
5
µA
ITIMERDN
TIMER Pin Pull-down current
(VCC – VSENSE) < VTRIP
VTIMER = 0.6V
3.5
µA
VTIMERH
TIMER Pin High Threshold Voltage
1.280
1.313
1.345
V
M9999-102204
(408) 955-1690
October 2004
6
MICREL [ MICREL SEMICONDUCTOR ]
