參數(shù)資料
型號(hào)： ISL88731HRZ-T
廠商： INTERSIL CORP
元件分類： 電源管理
英文描述： SMBus Level 2 Battery Charger
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28
封裝： 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, PLASTIC, TQFN-28
文件頁數(shù)： 5/22頁
文件大?。?/td> 474K
代理商： ISL88731HRZ-T
5
FN9258.0
November 20, 2006
SMBus
SMB Timing Specification
VDDSMB = 2.7V TO 5.5V
BOOT Supply Current
UGATE High
170
290
400
μA
PHASE Input Bias Current
V
DCON
= 28V, V
CSON
= V
PHASE
= 20V
0
2
μA
UGATE On-Resistance Low
I
UGATE
= -100mA (see note 4)
0.9
1.6
Ω
UGATE On-Resistance High
I
UGATE
= 10mA (see note 4)
1.4
2.5
Ω
LGATE On-Resistance High
I
LGATE
= +10mA (see note 4)
1.4
2.5
Ω
LGATE On-Resistance Low
I
LGATE
= -100mA (see note 4)
0.9
1.6
Ω
Dead Time
Falling UGATE to rising LGATE or
falling LGATE to rising UGATE
35
50
80
ns
ERROR AMPLIFIERS
GMV Amplifier Transconductance
200
250
300
μ
A/V
GMI Amplifier Transconductance
40
50
60
μ
A/V
GMS Amplifier Transconductance
40
50
60
μ
A/V
GMI/GMS Saturation Current
15
21
25
μ
A
GMV Saturation Current
10
17
30
μ
A
ICOMP, VCOMP Clamp Voltage
0.25V < V
ICOMP, VCOMP
< 3.5V
200
300
400
mV
LOGIC LEVELS
SDA/SCL Input Low Voltage
VDDSMB = 2.7V to 5.5V
0.8
V
SDA/SCL Input High Voltage
VDDSMB = 2.7V to 5.5V
2
V
SDA/SCL Input Bias Current
VDDSMB = 2.7V to 5.5V
-1
1
μA
SDA, Output Sink Current
V
SDA
= 0.4V
7
15
mA
Electrical Specifications
DCIN = CSSP = CSSN = 18V, CSOP = CSON = 12V, VDDP = 5V, BOOT-PHASE = 5.0V, GND = PGND = 0V,
CVDDP = 1μF, IVDDP = 0mA, T
A
= -10°C to +100°C
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PARAMETERS
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SMBus Frequency
FSMB
10
100
kHz
Bus Free Time
TBUF
4.7
μs
Start Condition Hold Time from SCL
THD:STA
4
μs
Start Condition Setup Time from SCL
TSU:STA
4.7
μs
Stop Condition Setup Time from SCL
TSU:STO
4
μs
SDA Hold Time from SCL
THD:DAT
300
ns
SDA Setup Time from SCL
TSU:DAT
250
ns
SCL Low Timeout (Note 3)
TTIMEOUT
22
25
30
ms
SCL Low Period
TLOW
4.7
μs
SCL High Period
THIGH
4
μs
Maximum Charging Period Without a SMBus Write to
ChargeVoltage or ChargeCurrent Register
140
180
220
s
NOTE:
3. If SCL is low for longer than the specified time, the charger is disabled.
4. Guaranteed by characterization.
ISL88731
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