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參數資料
| 型號： | TWL2214CAGQER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA48 |
| 封裝： | MICRO, BGA-48 |
| 文件頁數： | 36/36頁 |
| 文件大小： | 511K |
| 代理商： | TWL2214CAGQER |
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TWL2214CA
POWER SUPPLY MANAGEMENT IC AND
LiIon BATTERY CHARGE CONTROL
SLVS321A – OCTOBER 2001 – REVISED JANUARY 2002
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description (continued)
VREG1
XRST
PSH
CD1
CD2
To keep power-on condition PSH must be
high within maximum CD2 delay.
CD1 delay
0.9 VOUT
Hysteresis
Figure 4. VREG1 Monitoring of Reset Control
regulator 1
This regulator is automatically enabled after the power-on process is complete. It stays enabled until the
power-off condition occurs. Regulator 1 supplies power to the microprocessor. The nominal output voltage is
2.8 V and the maximum output current is 150 mA. Regulator 1 requires an output capacitor in the range of 4.7
F
to10
F with an ESR less than 6 .
regulator 6
This regulator output voltage can be enabled by I2C by attaching CONT (terminal 21 or H6) to VDD. Attaching
CONT to GND makes this regulator automatically enabled with power on. The output voltage is programmed
by I2C. The maximum output current of 100 mA requires an output capacitor in range of 4.7
F to 10 F, with
ESR in the range of 1
to 6 . The output voltage ranges from 2.5 V to 3 V.
regulators 2, 3, 4, and 5
Regulators 2, 3, 4, and 5 are output voltages programmed and enabled by I2C. The output voltage ranges from
2.3 V to 3 V in 100-mV steps. The maximum output current for regulators 2 and 3 is 80 mA, for regulator 4 it
is 120 mA, and for regulator 5 it is 150 mA. The default output voltage for all regulators is 3 V. These regulators
have very low output noise (maximum 30
VRMS); they are suitable for powering up the RF block, which requires
an output capacitor in the range of 4.7
F to 10 F with an ESR less than 6 .
vibrator driver
The TWL2214CA device has incorporated a vibrator driver with selectable output voltage and current. This
integrated vibrator driver has the same features as the other LDO regulators. The vibrator is enabled by I2C.
The output voltage can be selected by tying SEL (terminal 4 or D2) to VDD or GND. If SEL is tied to VDD, the
output voltage is set to 3 V. If SEL is tied to GND, the output voltage is set to 1.3 V.
LED driver
The TWL2214CA device provides the capability of driving three LEDs. These drivers, enabled by I2C, can drive
currents of 160 mA, 20 mA, and 10 mA individually with a maximum voltage drop of 0.8 V.
ringer driver
The TWL2214CA device provides the capability of driving a ringer. It is enabled by I2C and uses an N-channel
FET with a maximum resistance of 3
.
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相關代理商/技術參數 |
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|---|---|
| TWL2214CAPFB | 制造商:Rochester Electronics LLC 功能描述:POWER SUPPLY MANAGEMENT IC:LION - Bulk 制造商:Texas Instruments 功能描述:CHGR LI-ION/LI-POL 150MA 2.8V 48TQFP - Tape and Reel |
| TWL2214CAPFBR | 制造商:Rochester Electronics LLC 功能描述:POWER SUPPLY MANAGEMENT IC:LION - Bulk 制造商:Texas Instruments 功能描述:CHGR LI-ION/LI-POL 150MA 2.8V 48TQFP - Tape and Reel |
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