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FAN54015 Datasheet(PDF) 6 Page - Fairchild Semiconductor

No. de pieza FAN54015
Descripción Electrónicos  USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Download  34 Pages
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN54015 Datasheet(HTML) 6 Page - Fairchild Semiconductor

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© 2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN54015 • Rev. 1.0.0
6
Electrical Specifications
Unless otherwise specified: according to the circuit of Figure 1; recommended operating temperature range for TJ and TA;
VBUS=5.0 V; HZ_MODE; OPA_MODE=0; (Charge Mode); SCL, SDA, OTG=0 or 1.8 V; and typical values are for TJ=25°C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Special Charger (VBUS)
VSP
Special Charger Setpoint Accuracy
–3
+3
%
Input Current Limit
IINLIM
Input Current Limit Threshold
IIN Set to 100 mA
88
93
98
mA
IIN Set to 500 mA
450
475
500
VREF Bias Generator
VREF
Bias Regulator Voltage
VBUS > VIN(MIN) or VBAT > VBAT(MIN)
6.5
V
Short-Circuit Current Limit
20
mA
Battery Recharge Threshold
VRCH
Recharge Threshold
Below V(OREG)
100
120
150
mV
Deglitch Time
VBAT Falling Below VRCH Threshold
130
ms
STAT Output
VSTAT(OL)
STAT Output Low
ISTAT=10 mA
0.4
V
ISTAT(OH)
STAT High Leakage Current
VSTAT=5 V
1
A
Battery Detection
IDETECT
Battery Detection Current before
Charge Done (Sink Current)
(4)
Begins after Termination Detected
and VBAT < VOREG –VRCH
–0.80
mA
tDETECT
Battery Detection Time
262
ms
Sleep Comparator
VSLP
Sleep-Mode Entry Threshold,
VBUS – VBAT
2.3 V < VBAT < VOREG, VBUS Falling
0
0.04
0.10
V
tSLP_EXIT
Deglitch Time for VBUS Rising
Above VBAT by VSLP
Rising Voltage
30
ms
Power Switches (see Figure 2)
RDS(ON)
Q3 On Resistance (VBUS to PMID)
IIN(LIMIT)=500 mA
180
250
mΩ
Q1 On Resistance (PMID to SW)
130
225
Q2 On Resistance (SW to GND)
150
225
Charger PWM Modulator
fSW
Oscillator Frequency
2.7
3.0
3.3
MHz
DMAX
Maximum Duty Cycle
100
%
DMIN
Minimum Duty Cycle
0
%
ISYNC
Synchronous to Non-Synchronous
Current Cut-Off Threshold
(5)
Low-Side MOSFET (Q2) Cycle-by-
Cycle Current Limit
140
mA
Boost Mode Operation (OPA_MODE=1, HZ_MODE=0)
VBOOST
Boost Output Voltage at VBUS
2.5 V < VBAT < 4.5 V, ILOAD from 0 to
200 mA
4.80
5.07
5.17
V
3.0 V < VBAT < 4.5 V, ILOAD from 0 to
500 mA
4.77
5.07
5.17
IBAT(BOOST)
Boost Mode Quiescent Current
PFM Mode, VBAT=3.6 V, IOUT=0
140
300
A
ILIMPK(BST)
Q2 Peak Current Limit
1272
1590
1908
mA
UVLOBST
Minimum Battery Voltage for Boost
Operation
While Boost Active
2.42
V
To Start Boost Regulator
2.58
2.70
Continued on the following page…


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