Micrel, Inc.
MIC2593
September 2008
14
M9999-092208
General Purpose Input (GPI) Pins
Two pins on the MIC2593 are available for use as GPI
pins. The logic state of each of these pins can be
determined by polling Bits [4:5] of Common Status
Register. Both of these inputs are compliant to 3.3V. If
unused, connect the GPI[A/B] pins to GND.
Fault Reporting and /INT Interrupt Generation
SMI-only Control Applications
In applications where the MIC2593 is controlled only by
the SMI, the ON[A/B] and AUXEN[A/B] should be
connected to GND as shown in Figure 6. In this case, the
MIC2593s /FAULT[A/B] outputs and STAT[A/B] Register
Bit D[7] (FAULT[A/B]) are not activated, as fault status is
determined by polling STAT[A/B] Register Bits D[4:0] and
CS (Common Status) Register Bits D[2:1]. Individual fault
bits in STAT[A/B] and CS are asserted after power-on-
reset when
Either or both CNTRL[A/B] Register Bits D[1:0] are
asserted,
AND
" 12VIN[A/B], 12MVIN[A/B], 5VIN[A/B], 3VIN[A/B],
or VSTBY[A/B] input voltage is lower than its
respective ULVO threshold, OR
" The fast OC circuit breaker[A/B] has tripped, OR
" The slow OC circuit breaker[A/B] has tripped
AND its filter timeout has expired, OR
" The slow OC circuit breaker[A/B] has tripped
AND Slot[A/B] die temperature exceeds 140癈,
OR
" The MIC2593s global die temperature exceeds
160癈
To clear any one or all STAT[A/B] Register Bits D[4:0]
and/or CS Register Bits D[2:1] once asserted, a software
subroutine can perform an echo reset where a Logical
1 is written back to those register bit locations that have
indicated a fault.
The open-drain, active-LOW /INT output signal is
activated after power-on-reset when the INTMSK bit (CS
Register Bit D[3]) has been reset to Logical 0 . Once
activated, the /INT output is asserted by any one of the
fault conditions listed above and de-asserted when one or
all STAT[A/B] Register Bits D[4:0] and/or CS Register Bits
D[2:1] are reset upon the execution of an SMBus echo
reset WRITE_BYTE cycle.
HPI-only Control Applications
In applications where the MIC2593 is controlled only by
the HPI, SMBus signals SCL, SDA, and /INT signals are
connected to VSTBY as shown in Figure 6. In this
configuration, the MIC2593s /FAULT[A/B] outputs are
activated after power-on-reset and become asserted
when:
/INT*
/FAULT_[A/B]
I
MAIN_OUT[A/B]
MAIN_OUT[A/B]
I
AUX_OUT[A/B]
AUX_OUT[A/B]
AUXEN[A/B]
0
V
IH
V
IH
V
IL
V
IH
I
LIM(AUX)
I
STEADY-STATE
I
LIM(MAIN)
I
STEADY-STATE
ON[A/B]
0
0
0
0
0
0
0
V
IH
V
IL
+3.3V
t
POR
VSTBY
UVLO
t
FLT
t
FLT
*
*
* /INT de-asserted by software
Figure 8. Hot Plug Interface Mode Operation
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
MIC2594-2BM TR
IC CTRLR HOT SWAP NEG HV 8-SOIC
MIC2595R-2BM TR
IC CTRLR HOT SWAP NEG HV 14-SOIC
MIC280-7BM6 TR
IC SUPERVISOR THERMAL SOT23-6
MIC2800-GFSYML TR
IC REG TRPL BUCK/LINEAR 16MLF
MIC281-7BM6 TR
IC SUPERVISOR THERMAL SOT23-6
MIC2810-1JGMYML TR
IC REG TRPL BUCK/LINEAR 16MLF
MIC284-2BMM TR
IC SUPERVISOR THERM 2ZONE 8-MSOP
MIC3385-1.5YHL TR
IC REG DL BCK/LINEAR SYNC 14-MLF
相关代理商/技术参数
MIC2593-2YTQ
功能描述:热插拔功率分布 Dual-slot PCI Hot Swap Power Controller w/o IPMI support - Lead Free
RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MIC2593-2YTQ TR
功能描述:热插拔功率分布 Dual-slot PCI Hot Swap Power Controller w/o IPMI support - Lead Free
RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MIC2594-1BM
功能描述:IC CTRLR HOT SWAP NEG HV 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件
MIC2594-1BM TR
功能描述:IC CTRLR HOT SWAP NEG HV 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件
MIC2594-1YM
功能描述:热插拔功率分布 Negative Voltage Hot-Swap Controller - Lead Free
RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MIC2594-1YM TR
功能描述:热插拔功率分布 Negative Voltage Hot-Swap Controller - Lead Free
RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MIC2594-1YM-TR
功能描述:Hot Swap Controller 1 Channel -48V 8-SOIC 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 类型:热交换控制器 通道数:1 内部开关:无 应用:-48V 特性:故障超时，闭锁故障 可编程特性:限流，压摆率，UVLO 电压 - 电源:-80 V ~ -19 V 电流 - 输出（最大值）:- 工作温度:-40°C ~ 85°C 电流 - 电源:3mA 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 功能引脚:DRAIN，OFF，ON，PWRGD 标准包装:1
MIC2594-2BM
功能描述:IC CTRLR HOT SWAP NEG HV 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件