FAN54040UCX データシートの表示（PDF） - Fairchild Semiconductor
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FAN54040UCX
Fairchild Semiconductor
FAN54040UCX Datasheet PDF : 41 Pages
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Electrical Specifications (Continued)
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=0 or 1.8 V; and typical values are for TJ=25°C.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
Input Power Source Detection
T1
T1 (0°C) Temperature Threshold
T2
T1 (10°C) Temperature Threshold
T3
T1 (45°C) Temperature Threshold
T4
T1 (60°C) Temperature Threshold
Input Power Source Detection
VIN(MIN)1 VBUS Input Voltage Rising
VIN(MIN)2 Minimum VBUS during Charge
tVBUS_VALID VBUS Validation Time
VBUS Control Loop
VBUSLIM VBUS Loop Setpoint Accuracy
Input Current Limit
IBUSLIM
Charger Input Current Limit
Threshold
VREF Bias Generator
VREF
Bias Regulator Voltage
Short-Circuit Current Limit
Battery Recharge Threshold
VRCH
Recharge Threshold
Deglitch Time
STAT, POK_B Output
VSTAT(OL) STAT Output Low
ISTAT(OH) STAT High Leakage Current
Battery Detection
IDETECT
Battery Detection Current before
Charge Done (Sink Current)(5)
tDETECT Battery Detection Time
Sleep Comparator
VSLP
Sleep-Mode Entry Threshold,
VBUS – VBAT
Power Switches (see Figure 2)
Q3 On Resistance (VBUS to PMID)
RDS(ON)
Q1 On Resistance (PMID to SW)
Q2 On Resistance (SW to GND)
Q4 On Resistance (SYS to VBAT)
ISYNC
Synchronous to Non-Synchronous
Current Cut-Off Threshold(6)
To Initiate and Pass VBUS Validation
During Charging
IBUSLIM Set to 100 mA
IBUSLIM Set to 500 mA
VBUS > VIN(MIN)
Below V(OREG)
VBAT Falling Below VRCH Threshold
ISTAT=10 mA
VSTAT=5 V
Begins after Termination Detected
and VBAT < VOREG –VRCH
2.3 V < VBAT < VOREG, VBUS Falling
IIN(LIMIT)=500 mA
VBAT=4.2 V
Low-Side MOSFET (Q2) Cycle-by-
Cycle Current Limit
71.9
62.6
31.9
21.3
–3
88
450
100
0
73.9
64.6
32.9
23.3
4.29
3.71
30
93
475
1.8
2.5
120
130
–0.8
262
0.04
180
130
150
70
140
75.9
66.6
34.9
25.3
% of
VREF
4.42 V
3.94 V
ms
+3
%
98
mA
500
V
mA
150 mV
ms
0.4
V
1
A
mA
ms
0.10 V
250
225 mΩ
225
100 mΩ
mA
Continued on the following page…
© 2012 Fairchild Semiconductor Corporation
FAN54040 – FAN54047 • Rev. 1.0.2
7
www.fairchildsemi.com
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