Texas Instruments Evaluation Module for Single-Chip Charger and DC/DC Converter IC for Portable Applications BQ25017EVM BQ25017EVM 데이터 시트
제품 코드
BQ25017EVM
www.ti.com
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