MAX8662 Просмотр технического описания (PDF) - Maxim Integrated
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MAX8662 Datasheet PDF : 34 Pages
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Power-Management ICs for
Single-Cell, Li+ Battery-Operated Devices
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VDC = 5V, RPSET = 1.5kΩ, RISET = 3kΩ, VOUT1 = 3.3V, VOUT2 = 1.3V, SL1 = SL2 = open, VCEN = 0V, VPEN1 =
VPEN2 = 5V, COUT1 = 2 x 10µF, COUT2 = 2 x 10µF, COUT3 = 0.1µF, COUT4 = 4.7µF, COUT5 = 1µF, COUT6 = 2.2µF, COUT7 = 1µF, CT =
0.068µF, CREF = CVL = 0.1µF, RTHM = 10kΩ, L1 = 3.3µH, L2 = 4.7µH, L3 = 22µH, VGND = VPG1 = VPG2 = VPG3 = 0V, TA = +25°C,
unless otherwise noted.)
CHARGE CURRENT vs. AMBIENT TEMPERATURE
(LOW IC POWER DISSIPATION)
900
PEN1 = PEN2 = 1
800
700
600
500 PEN1 = 0, PEN2 = 1
400
VDC = 5.0V, VBAT = 4.0V
300
RISET = 3kΩ, CEN = 0, EN_ = 0
200
100 PEN1 = PEN2 = 0
CHARGE CURRENT vs. AMBIENT TEMPERATURE
(HIGH IC POWER DISSIPATION)
900
PEN1 = PEN2 = 1
800
700
600
500 PEN1 = 0, PEN2 = 1
400
VDC = 6.5V, VBAT = 3.1V
300
RISET = 3kΩ, CEN = 0, EN_ = 0
200
PEN1 = PEN2 = 0
100
SYS OUTPUT VOLTAGE
vs. INPUT VOLTAGE
5.6
VBAT = 4.0V
5.4 ISYS = 0mA
5.2 PEN1 = 0
PEN2 = 1
5.0
CHARGER
4.8
DISABLED
4.6
4.4
CHARGER
ENABLED
4.2
4.0
3.8
0
-40 -15
10
35
60
85
AMBIENT TEMPERATURE (°C)
0
-40 -15
10
35
60
85
AMBIENT TEMPERATURE (°C)
3.6
0 1 2 3 4 5 678
INPUT VOLTAGE (V)
SYS OUTPUT VOLTAGE
vs. SYS OUTPUT CURRENT (DC DISCONNECTED)
5.6
THE SLOPE OF THIS LINE SHOWS THAT THE
5.4 BAT-TO-SYS RESISTANCE IS 49mΩ.
5.2
5.0
VDC = 0V
VBAT = 4.0V
4.8
SYS OUTPUT VOLTAGE
vs. SYS OUTPUT CURRENT (500mA USB)
5.6
5.4
VDC = 5.0V
VBAT = 4.0V
5.2
PEN1 = 0, PEN2 = 1
CEN = 1
5.0
4.8
SYS OUTPUT VOLTAGE
vs. SYS OUTPUT CURRENT (AC ADAPTER)
5.6
5.4
VDC = 5.0V
VBAT = 4.0V
5.2
PEN1 = PEN2 = 1
CEN = 1
5.0
4.8
4.6
4.6
4.6
4.4
4.4
4.4
4.2
4.2
4.2
4.0
4.0
4.0
3.8
3.8
3.8
3.6
0
0.5 1.0 1.5 2.0 2.5 3.0
ISYS (A)
3.6
0
0.5 1.0 1.5 2.0 2.5 3.0
ISYS (A)
3.6
0
0.5 1.0 1.5 2.0 2.5 3.0
ISYS (A)
USB CONNECT (ISYS = 0mA)
MAX8662/63 toc16
VDC 0V
IIN
VSYS 0mA 4.0V
VPOK
5V
5V
+95mA
4.4V
5V/div
200mA/div
2V/div
5V/div
VCHG
0V
0mA
IBAT NEGATIVE BATTERY
CURRENT FLOWS INTO
THE BATTERY
(CHARGING).
+95mA
5V/div
200mA/div
USB CONNECT (ISYS = 50mA)
MAX8662/63 toc17
VDC 0V
IIN
0mA 4.0V
VSYS
5V
5V
+95mA
4.4V
5V/div
200mA/div
2V/div
VPOK
VCHG
IBAT
0V
0V
50mA
NEGATIVE BATTERY
CURRENT FLOWS
INTO THE BATTERY (CHARGING).
5V/div
5V/div
-45mA
200mA/div
200µs/div
PEN1 = PEN2 = 0, CEN = 0,
VBAT = 4.0V, ISYS = 0mA, EN_ = 1
200µs/div
PEN1 = PEN2 = 0, CEN = 0,
VBAT = 4.0V, ISYS = 50mA, EN_ = 1
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