MIC2589 Datasheet, PDF (10/17 Pages) Micrel Semiconductor – SINGLE-CHANNEL NEGATIVE HIGH VOLTAGE HOT SWAP POWER CONTROLLERS/SEQUENCERS

MIC2589/2595
Functional Diagram
VDD
SENSE
VEE
Internal VDD
and
Reference
Generator
50mV
V_DD1
95µA
Error
AMP
+
–
V_DD1
V_REF
CFILTER
+
V_CFILTER
–
4µA
V_EE
V_DD1
25µA
V_REF
Logic +
Circuit
Breaker
CNLD
UV
OV
+
V_CNLD
–
V_EE
–
+
V_TH(UV/OV)
–
+
Micrel
V_DD1
45µA
GATE
V_EE
V_DD1
100µA
V_EE
PWRGD1
PWRGD2
PWRGD3
V_EE
EN
V_EE
Internal
PG
6V
Clamp
V_PGTH
V_DD1
45µA
V_TH(PG2)
V_TH(PG3)
/PWRGD1
/PWRGD2
/PWRGD3
DRAIN
PGTIMER
MIC2589 Block Diagram
V_EE
For Power-Good circuitry only
denotes -2 option
M9999-031504
10
March 2004