MIC2589_05 Datasheet, PDF (2/29 Pages) Micrel Semiconductor – Single-Channel, Negative High-Voltage Hot Swap Power Controller/Sequencer

Micrel
MIC2589/MIC2595
Typical Applications
-48V RTN
(Long Pin)
*D1
SMAT70A
-48V RTN
(Short Pin)
R1
689k
1%
R2
11.8k
1%
C_TIMER
0.068µF
MIC2589-2BM
1 _/PWRGD1
VDD ¹⁴
2 _{PGTIMER /PWRGD3} 13
3 _UV
/PWRGD2 ¹²
C4
100µF
C3
0.1µF
-48V RTN
(Long Pin)
C1
0.47µF
R3
12.4k
1%
C_FILTER
2.2µF
C_NLD
0.068µF
4 _OV
5 _CFILTER
6 _CNLD
7 _VEE
DRAIN ¹¹
GATE ¹⁰
SENSE ⁹
N/C ⁸
*C2
0.1µF
C6
100µF
C5
0.1µF
R4
10
C8
100µF
C7
0.1µF
R_SENSE
0.01
M1
SUM110N10-09
Nominal Undervoltage and Overvoltage Thresholds:
5%
V_UV=36.5V
V_OV=71.2V
Overcurrent TImer Delay
t_FLT^~=30ms
*Optional components (See Funtional Description and Applications Information for more details)
#An external pull-up resistor for the power-good signal is necessary for DC-DC convertors (and all other load modules) not equipped with an
internal pull-up impedance
-48V RTN
IN+ OUT+
ON/OFF*
IN– OUT–
+5V_OUT
+5V RTN
IN+ OUT+
ON/OFF*
IN– OUT–
+2.5V_OUT
+2.5V RTN
IN+ OUT+
ON/OFF*
IN– OUT–
+1.8V_OUT
+1.8V RTN
December 2005
2
M9999-120505
[phone]