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1.3 I/O Description
1.4 Control and Key Parameter Settings
1.5 Recommended Operating Conditions
I/O Description
Jack Description
J1-POS AC adapter, positive output
J1-GND AC adapter, negative output
J2 USB B-connector socket
J3-SYS-OUT Positive output to system
J3-DC– Negative output to system
J4-BAT+ Positive output to battery
J4-BAT– Negative output to battery
J5-STAT1 STAT1 pin output voltage (when J7-2 and -3 are shorted)
J5-STAT2 STAT2 pin output voltage (when J8-2 and -3 are shorted)
J5-DC– Connection to IC ground pin
J5-PG PG pin output voltage (ac detection)
J7-LED Power supply for LEDs, STAT1 monitoring
J7-EXT STAT1 pin output voltage to external
J8-LED Power supply for LEDs, STAT2 monitoring
J8-EXT STAT2 pin output voltage to external
J10-LED Power supply for LEDs, PG monitoring
J10-EXT PG pin output voltage to external
Jack or Resistor Description Factory Setting
J6-CE CE pin output voltage Charge enabled
J6-ISET2 Charge current limit setting when charging from Set by J9
USB
J6-DC– Connection to IC ground pin
J6-EN Enable input for dc-dc converter Dc-dc converter enabled
J9 Charge current limit setting with USB input 2–3 (pins 2 and 3 are
1–2: 0.5 A shorted together)
2–3: 0.1 A
J11 Forced PWM for dc-dc converter 2–3 (pins 2 and 3 are
1–2: forced PWM mode shorted together)
2–3: power-save mode
R7 Charge current limit setting when charging from ac 1.62 k Ω (500 mA)
adapter
PARAMETER MIN NOM MAX UNIT
V
CC_AC
Supply voltage from ac adapter input, maximum 4.5 5 6.5 V
V
CC_USB
Supply voltage from USB input, maximum 4.35 6.5 V
I
CC_AC
Supply current from ac adapter input, maximum 0.5 1.5 A
I
CC_USB
Supply current from USB input, maximum
(1)
100 500 mA
Dc-dc converter output current
(2)
0 100 300 mA
T
J
Operating junction temperature range –40 125 ° C
(1)
When using a USB port with the current limit less than 500mA, select 100mA charge rate using ISET2 pin (J9).
(2)
The typical current magnitude gives a 30% current ripple when using a 47- μ H output inductor. The actual load current can be
higher or lower.
Introduction 4 SLUU214A – December 2004 – Revised June 2007
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