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參數資料
| 型號： | TPS65530RSLRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.3 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PQCC48 |
| 封裝： | 6 X 6 MM, 0.40 MM PITCH, GREEN, PLASTIC, QFN-48 |
| 文件頁數： | 4/31頁 |
| 文件大?。?/td> | 931K |
| 代理商： | TPS65530RSLRG4 |
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Soft Start
Undervoltage Lockout (UVLO)
Protection
SLVS744C – OCTOBER 2007 – REVISED MAY 2008....................................................................................................................................................... www.ti.com
Figure 2. CH5/6 Power ON/OFF Sequence
This function reduces the rush current from the battery at start-up. This device has two slopes, defined by S/S
(pin 9) and S/S56 (pin 45). The slopes of CH1–4 are defined by S/S; the slopes of CH5/6 depend on SEQ56 (pin
47) signal level. When SEQ56 is low, the slope of CH5 is defined by S/S; the slope of CH6 is defined by S/S56.
When SEQ56 is high, the slopes of CH5/6 are defined by S/S56. The soft-start time is calculated by Equation 1
and Equation 2.
TS/S = CS/S × 60
(1)
TS/S56 = CS/S56 × 6.25
(2)
Where:
CS/S = Capacitance at S/S [F]
TS/S = Soft-start duration defined by S/S [ms]
CS/S56 = Capacitance at S/S56 [F]
TS/S56 = Soft-start duration defined by S/S56 [ms]
The recommended capacitances are CS/S = 0.1 [F] or TS/S = 6.0 [ms], CS/S56 = 1.0 [F] or TS/S56 = 6.25 [ms].
This device monitors the battery voltage level at VCC2 (pin 12). When XSLEEP is high and VCC2 (pin 12) is less
than the threshold (defined in Electrical Characteristics as UVLO detect level), the operation shuts down
immediately without the power OFF sequence. UVLO has a hysteresis as shown in Figure 3. This factor is
defined in Electrical Characteristics as UVLO hysteresis.
Figure 3. UVLO Hysteresis
The TPS65530 has three protection conditions: overcurrent protection (OCP), overvoltage protection (OVP), and
thermal shutdown (TSD) (see Table 2).
12
Copyright 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65530
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相關代理商/技術參數 |
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| TPS65530RSLT | 功能描述:PMIC 解決方案 FULLY INTEGR 8CH DC/ DC CONV RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| TPS65530RSLTG4 | 功能描述:PMIC 解決方案 Fully Integ 8Ch RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| TPS65552ADGQ | 功能描述:其他電源管理 Intgrtd Photo Flash Charger & IGBT Drv RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| TPS65552ADGQG4 | 功能描述:其他電源管理 Intgrtd Photo Flash Charger & IGBT Drv RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| TPS65552ADGQR | 功能描述:其他電源管理 Intgrtd Photo Flash Charger & IGBT Drv RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
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