參數(shù)資料
型號： LTC4095EDC#TRM
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, DFN-8
文件頁數(shù)： 9/16頁
文件大小： 225K
代理商： LTC4095EDC#TRM
LTC4095
2
4095fa
PACKAGE/ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage (IN)
t < 1ms and Duty Cycle < 1% .................. –0.3V to 7V
Steady State............................................. –0.3V to 6V
BAT, SUSP, CHRG Voltage............................ –0.3V to 6V
PROG, NTC, HPWR
Voltage............................ –0.3V to Max (IN, BAT) + 0.3V
IBAT .............................................................................1A
IPROG...................................................................1.25mA
ICHRG......................................................................50mA
Junction Temperature ........................................... 125°C
Operating Temperature Range ................. –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
(Notes 1, 2, 3)
TOP VIEW
BAT
GND
CHRG
SUSP
IN
PROG
NTC
HPWR
DC PACKAGE
8-LEAD (2mm
× 2mm) PLASTIC DFN
9
4
1
2
3
6
5
7
8
TJMAX = 125°C, θJA = 60°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER
DC PART MARKING
LTC4095EDC
LCLG
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specied with wider operating temperature ranges.
The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. IN = HPWR = 5V, BAT = 3.8V, NTC = SUSP = 0V, RPROG = 1.74k unless
otherwise specied.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Battery Charger
IN
Input Supply Voltage
●
4.3
5.5
V
IIN
Battery Charger Quiescent Current
(Note 4)
Standby Mode; Charger Terminated
Suspend Mode; SUSP = 5V
200
8.5
400
17
A
VFLOAT
BAT Regulated Output Voltage
0°C ≤ TA ≤ 85°C
4.179
4.165
4.200
4.221
4.235
V
ICHG
Constant-Current Mode Charge Current
HPWR = 5V
HPWR = 0V
●
440
84
460
92
500
100
mA
IBAT
Battery Drain Current
Standby Mode; Charger Terminated
Shutdown Mode; IN < VUVLO, BAT = 4.2V
Suspend Mode; SUSP = 5V, BAT = 4.2V
–3.5
–2.0
–1.3
–7
–4
–3
A
VUVLO
Undervoltage Lockout Threshold
BAT = 3.5V, IN Rising
3.875
4.0
4.125
V
ΔVUVLO
Undervoltage Lockout Hystersis
BAT = 3.5V
200
mV
VDUVLO
Differential Undervoltage Lockout
Threshold
BAT = 4.05V, (IN – BAT), IN Falling
25
40
60
mV
ΔVDUVLO
Differential Undervoltage Lockout
Hysteresis
BAT = 4.05V
125
mV
PROG
PROG Pin Servo Voltage
HPWR = 5V
HPWR = 0V
BAT < VTRKL
1.000
0.200
0.100
V
hPROG
Ratio of IBAT to PROG Pin Current
800
mA/mA
ITRKL
Trickle Charge Current
BAT < VTRKL
37
46
55
mA
VTRKL
Trickle Charge Threshold Voltage
BAT Rising
2.8
2.9
3.0
V
ΔVTRKL
Trickle Charge Hysteresis Voltage
100
mV
ΔVRECHRG
Recharge Battery Threshold Voltage
Threshold Voltage Relative to VFLOAT
–75
–95
–115
mV
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