FAN5400 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
View to exact match
FAN5400
Fairchild Semiconductor
FAN5400 Datasheet PDF : 37 Pages
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Electrical Specifications
Unless otherwise specified: according to the circuit of Figure 1; recommended operating temperature range for TJ and TA;
VBUS=5.0V; HZ_MODE; OPA_MODE=0; (Charge Mode); SCL, SDA, OTG=0 or 1.8V; and typical values are for TJ=25°C.
Symbol
Parameter
Conditions
Input Power Source Detection
VIN(MIN)1
VIN(MIN)2
VBUS Input Voltage Rising
Minimum VBUS during Charge
tVBUS_VALID VBUS Validation Time
Special Charger (VBUS) (FAN5403 – FAN5405)
VSP
Special Charger Setpoint Accuracy
Input Current Limit
IINLIM
Input Current Limit Threshold
VREF Bias Generator
VREF
Bias Regulator Voltage
Short-Circuit Current Limit
To Initiate and Pass VBUS Validation
During Charging
IIN Set to 100mA
IIN Set to 500mA
VBUS > VIN(MIN) or VBAT > VBAT(MIN)
Battery Recharge Threshold
VRCH
Recharge Threshold
Deglitch Time
STAT Output
VSTAT(OL) STAT Output Low
ISTAT(OH) STAT High Leakage Current
Battery Detection
IDETECT
Battery Detection Current before
Charge Done (Sink Current)(4)
tDETECT Battery Detection Time
Sleep Comparator
VSLP
Sleep-Mode Entry Threshold,
VBUS – VBAT
VSLP_EXIT
Deglitch Time for VBUS Rising
Above VSLP + VSLP_EXIT
Power Switches (see Figure 3)
Q3 On Resistance (VBUS to PMID)
RDS(ON)
Q1 On Resistance (PMID to SW)
Q2 On Resistance (SW to GND)
Below V(OREG)
VBAT Falling Below VRCH Threshold
ISTAT=10mA
VSTAT=5V
Begins after Termination Detected
and VBAT < VOREG –VRCH
2.3V < VBAT < VOREG, VBUS Falling
Rising Voltage
IIN(LIMIT)=500mA
Charger PWM Modulator
fSW
Oscillator Frequency
DMAX
Maximum Duty Cycle
DMIN
Minimum Duty Cycle
ISYNC
Synchronous to Non-Synchronous
Current Cut-Off Threshold(5)
Low-Side MOSFET (Q2) Cycle-by-
Cycle Current Limit
Min. Typ. Max. Units
4.29 4.42
V
3.71 3.94
V
30
ms
–3
+3
%
88
93
98
mA
450 475 500
6.5
V
20
mA
100 120 150 mV
130
ms
0.4
V
1
A
–0.80
mA
262
ms
0
0.04 0.10
V
30
ms
180 250
130 225 mΩ
150 225
2.7
3.0
3.3 MHz
100
%
0
%
140
mA
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
7
www.fairchildsemi.com
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