Texas Instruments TPS6507xEVM, Руководство пользователя, Страница: 5 / 23

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TPS6507xEVM Electrical Performance Specifications
Table 2. TPS6507xEVM Performance Characteristics (continued)
Parameter Symbol Notes and Conditions Min Nom Max Units
LDO1, LDO2
TPS65070 1.8 mA
Default Output Voltage LDO1,
TPS65072 1.2 mA
LDO2
TPS65073, TPS650731, TPS650732 1.8 mA
TPS65070 1.2 mA
Default Output Voltage LDO2,
TPS65072 1.2 mA
LDO2
TPS65073, TPS650731, TPS650732 1.8 mA
Output Current LDO1, LDO2 200 mA
wLED Boost Converter and Current Sinks
Switching frequency wLED
1125 kHz
boost
Input voltage at I
SINK1
, I
SINK2
16 V
Internal overvoltage
35 37 39 V
protection
Maximum boost factor
9 10 V
(VIN/V
OUT
)
PWM dimming resolution 1 %
Tolerance between current sinks I
SINK1
, I
SINK2
5 %
ADC Converter
Input voltage range AD_IN1
0 2.25 V
to AD_IN4
ADC resolution 10 Bits
Differential linearity error ± 1 LSB
Offset error 1 5 LSB
Gain error ± 8 LSB
Sampling rime 220 µ s
Conversion time 19 µ s
Reference voltage on
– 1 2.26 +1 %
BYPASS
Power Path
Minimum battery voltage V
BATMIN
2.75 V
Input overvoltage protection V
(OVP)
5.8 6.0 6.3 V
Switching from AC to BAT T
SW(ACBAT)
200
µ
s
Switching from USB to BAT T
SW(USBBAT)
200 µ s
Switching from AC to USB T
SW(ACUSB)
200 µ s
From power applied to start of power-up
SYS power-up delay 11 ms
sequence
Dropout voltage AC to SYS I
LIMITAC
= 2500 mA, I
SYS
= 1000 mA 150 mV
Dropout voltage USB to SYS I
LIMITUSB
= 13000 mA, I
SYS
= 800 mA 160 mV
Dropout voltage USB to SYS V
BAT
= 3.0 V, I
SYS
= 1000 mA 85 100 mV
Charger
Battery discharge current 2 A
Battery charge voltage Set in internal register 4.1 4.25 V
Battery fast-charge current
Set with external resistor 100 1500 mA
range
Pre-charge current I
PRECHG
0.08 × I
CHG
0.10 × I
CHG
0.12 × I
CHG
Charge termination current I
TERM
0.08 × I
CHG
0.10 × I
CHG
0.12 × I
CHG
Switching frequency f
SW
1950 2250 2550 kHz
5 SLVU291B – April 2010 – Revised September 2011 TPS6507xEVM
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