參數(shù)資料
型號： P95020ZNQGI8
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132
封裝： QFN-132
文件頁數(shù)： 17/137頁
文件大小： 3533K
代理商： P95020ZNQGI8
P95020 / Preliminary Datasheet
Revision 0.7.10
113
2010 Integrated Device Technology, Inc.
14.0 HOTSWAP MODULE
FEATURES
Controlled via external pin or internal registers
Current Output 150mA maximum.
Overcurrent / Short Circuit Protection
DESCRIPTION
The HOTSWAP module is intended to provide an output
voltage that tracks the input voltage with minimal DC
losses (up to 150mA max.). The primary purpose for these
outputs is to provide short circuit protection to peripheral
devices such as SD cards when connected to the host
device. The input supply to the switches is shared though
each switch has an independent, active high, control
input.
I2C
SUB-BLOCK
MICROCONTROLLER
SUB-BLOCK
UPPER BYTE OFFSET: 0xA0
HSCTRL1
HSO1
HSPWR
HSO2
HSCTRL2
REGISTER
BUS
SW Ctrl
V
S
Y
S
HS_CTRL_REG
0x36 [4:0]
FORCE INTERNAL
SWITCH CTRL
Figure 29
– Hotswap Block Diagram
14.1 HOT SWAP (LOAD SWITCHES)
– ELECTRICAL CHARACTERISTICS
Unless otherwise specified, typical values at TA =25C, VSYS = 3.8V, VHSPWR=4.5V, TA = -40°C to +85°C,
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
VHSPWR
Input voltage Range
Mosfet Inputs
3.0
3.3
5.5
V
IQ(SW-ON)
Quiescent Current from HSPWR
VSYS =4.5V,HSPWR = 3.3V, IOUT=0
HS_CTRL_REG
0x36 [3:0] = 1= ON
24
uA
IQ(SW-OFF)
Off-Supply Current from HSPWR
VSYS = 4.5V,HSPWR = 3.3V, HSCTRL1,
HSCTRL2 = GND
HS_CTRL_REG
0x36 [3:0] = 0 = OFF
1
uA
RDS(ON)
On Resistance
VHSPWR = 3.0V to 5.0V
1.2
1.6
ILIM (MIN)
Current Limit
VHSPWR = 3.0V to 5.0V
180
250
mA
tRESP
Current Limit Response Time
10
s
VIL
HSCTRL1, HSCTRL2, Input Low
Voltage
VHSPWR = 3V to 4.5V
0.3 x
VHSPWR
V
VIH
HSCTRL1, HSCTRL2, Input High
Voltage
VHSPWR = 3V to 4.5V
0.7 x
VHSPWR
+ 0.3
V
IOSINK
HSCTRL1, HSCTRL2 Leakage
1
uA
tOFF
Turn-Off Time
VHSPWR = 5V Note 1
1
s
tON
Turn-On Time
VHSPWR = 5V Note 1
15
s
Notes:
1.
Guaraneteed by design and/or characterization.
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