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参数资料
| 型号： | MAX8620YETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | IC UPMIC FOR MPU 14-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 微型电源管理集成电路（UPMIC），DSP |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 3 |
| 输出电压： | 0.6 V ~ 3.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
μPMIC for Microprocessors or DSPs
in Portable Equipment
Table 2. MAX8620Y Power Modes
PWR_ON
1
1
0
0
0
HF_PWR*
X
X
1
1
0
EN2
1
0
1
0
X
OUT1 AND OUT3
Enabled
Enabled
Enabled
Enabled
Disabled
OUT2
Disabled
Enabled
Disabled
Enabled
Disabled
* A rising edge at HF_PWR initiates a 1.31s one-shot timer. The status of HF_PWR shown in Table 2 indicates whether the one-shot
period has expired as follows:
1 = During t HP
0 = t HP has expired
Hands-Free Enable Input (HF_PWR)
A rising edge at HF_PWR generates an internal one-
shot pulse that enables the MAX8620Y for 1.31s (t HF ). If
HF_PWR remains high after t HF expires, the MAX8620Y
reenters shutdown. During t HF , OUT3 and OUT1 are
enabled so the microprocessor (μP) can initialize and
assert a logic-high at PWR_ON. OUT2 enables during
t HF if EN2 is low. Once PWR_ON is high, the status of
Power-Supply Sequencing
The step-down converter output (OUT3) always powers
up first and powers down last ( Figure 4). OUT1 powers
approximately 70μs after OUT3, and OUT2 powers
approximately 50μs after V OUT1 reaches 87% (typ) of
its regulation voltage. When PWR_ON goes low, OUT1
turns off, then OUT2 turns off, then OUT3 turns off 50μs
after PWR_ON goes low.
HF_PWR is ignored. If PWR_ON remains low after t HF
expires, the MAX8620Y reenters shutdown.
50 μ s
HF_PWR
t HF
PWR_ON
OUT3
t SU1
V THR
OUT1
t SU2
OUT2
RESET
t RP
EN2
Figure 4. MAX8620Y Power-Supply Sequencing
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8620YEVKIT | 功能描述:PMIC 解决方案 MAX8620Y Evaluation Kit RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG+ | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG+T | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG-T | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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