-1A, -12V Inverting Converter With PSM Mode

Features

• Operating input voltage range 9V to 14V
• Output current up to -1A
• Reference voltage: 0.8V
• Efficiency up to 90% at -1A Loading
• Current mode with PSM for Fast Response and higher Efficiency
• Fixed 500kHz switching Frequency
• Protections:

- Input Over Voltage Protections
- Under Voltage Protection and Hiccup mode
- Current Limited
- Over Temperature Protection
- BST to SW POR function

• Internal Soft-Start

General Description
APW7393 is an inverting Buck-Boost converter. Integrated 70mΩ high side and 60mΩ low side power MOSFET. Can generating a negative output voltage and provides an output current up to -1A. The APW7393 is equipped with an automatic PSM/PWM mode operation when MODE pin connecting to VOUT pin. At light load, the IC operates in the PSM mode to reduce the switching losses. At heavy load, APW7393 works in PWM mode with a fixed switching frequency of 500kHz. If MODE pin connecting to VIN pin, converter working in force PWM mode. Built-in EN function reference voltage, can simplify enable function in inverting converter application. Give a voltage more than 2V on EN to GND pin, IC VOUT will turn on with soft-start function. The APW7393 is also equipped with Power-on-reset, soft start, enable/disable and whole protections (over-voltage, hiccup mode, over-temperature and current-limit) into a single package.

Dual Channel Synchronous Buck PWM Controller

Features

• Single 12V Power Supply Required
• Excellent Output Voltage Regulation

- 1.0V ±0.8% Internal Reference Over Line, Load and TC

• Simple Single Loop Control Design

- Voltage Mode PWM Control

• Programmable Frequency Range from 50kHz ~ 350kHz
• CCM/DCM Operation Selectable by EN Pin

- Continuous Conduction Mode in Light Load to Reduce Output Ripple (V_EN=5V)
- Discontinuous Conduction Mode in Light Load to Increase Efficiency (V_EN=2V)

• Output Current Monitor (IMON pin)
• Integrated Soft-Start and Soft-Off
• Support Pre-Biased Power-On
• Output Power Line Compensation
• Phase Shift 180^o
• Integrated Boot-Strap Diode
• Over-Current and Short-Circuit Protection

- Sense Inductor’s DCR (option 1)
- Sence External R_SENSE (option 2)

• 120% Over-Voltage Protection
• 50% Under-Voltage Protection
• Over-Temperature Protection
• Available in SSOP-24 and SSOP-24P Packages

General Description
The APW7391 is a dual channel voltage mode, synchronous PWM controller which drives dual N-channel MOSFETs. The device integrates monitoring and protection functions into a single package, provides two controlled power output with under-voltage and overcurrent protections. The APW7391 provides excellent regulation for output load variation. The internal 1.0V temperature-compensated reference voltage provides high accuracy of 0.8% over line and load regulation. The PWM switching frequency is adjustable from 50KHz to 350KHz. The APW7391 has been equipped with excellent protection functions: POR, IMON, OCP, SCP, UVP, OVP OTP. The Power-On-Reset (POR) circuit can monitor the VCC input voltage to make sure the supply voltage is valid. The APW7391 adopts either the external power inductor’s DCR or an external accurate sense resistor to sense the output current. The output current information is reported at IMON pin whose output voltage is proportional to output current. During the PWM switching, the APW7391 has OCP and SCP protections. When the load current exceeds the OCP or SCP threshold, the APW7391 shuts off its PWM switcher to prevent catastrophic failure caused by abnormal load or short-circuit. The APW7391 senses its FB pin for output UVP and OVP protection, which is 50% and 120% of reference voltage respectively. When the UVP or OVP occurs, the APW7391 latches off the PWM switcher. APW7391 has over temperature protection. When the die temperature is above 150°C, the APW7391 ceases PWM operation and recover normal operation when the die temperature drops by 40°C. The APW7391 is available in SSOP-24 and SSOP-24P packages, which is compliant with RoHS.

40 Channel White LED Controller for LED Backlight

Features

• Wide range input is 4.5V to 26V
• High Accurate LED Current 2% Typ. (ILED=60mA)
• LED current modulation method: PWM and DC mode
• 40 Channel flexible PWM generators and independent for 13 Bits PWM Brightness
• Synchronization with TV Frame – VSYNC / Digital PLL Integrated
• Digital Configurable DC / DC Feedback
• Protection For Safety Features

- LED Short Detection
- LED Open Detection
- Temperature Shutdown detection
- UVLO

• PWM and DC Dimming Via SPI Interface (16 bit protocol)
• HDR mode for LED current modulation
• Available In QFN 9x9-76 Package
• One global / local high accurate 10 big DAC which sets the LED current

General Description
The APE5039 are integrates Mosfet and 40 channel LED controller for LED backlight. It’s high accurate LED current 2% (60mA LED current) and wide input voltage range. The APE5039 has 40 Channel flexible PWM generators and independent 13 bits PWM brightness were control LED current for every channel. In addition; It's has one global/local high accurate 10 bit DAC which sets the LED current. It’s synchronization with TV Frame including VSYNC and Digital PLL method. The APE5039 own LED current modulation method including PWM mode and DC mode. When applications have flicker frequency issue and then can using the DC mode method eliminate flicker frequency problem. The APE5039 has two pins can be digital configurable DC/ DC feedback, that’s for control DC/DC architecture. As the same time; the device using programmable via SPI interface. The APE5039 owns HDR mode for modulation LED current. It’s build-in protection for safety; include LED short, LED Open, temperature shutdown protection and UVLO. The APE5039 is available in QFN 9x9-76 packages.

9V to 18V eFuse With Fast Overvoltage Response Time

Features

• Wide operating voltage range from 9V to 18V
• Low on-resistance R_ON=40mΩ
• Fast output over voltage response time 0.5us
• Adjustable output slew rate
• Fixed output over voltage clamp 13.5V
• Short circuit protection
• Over temperature protection 150^oC
• Normal operation temperature -40^oC ~ 125^oC

General Description
APL3693 is a high-performance power protecting and management solution electronic fuse in DFN 3x3 package type. Have wide operation voltage range from 9V to 18V and integrate enable function, internal MOSFET have very low on resistance 40mΩ. The output voltage slew rate can be set with a single capacitor (C_dV/dt) and also can floating the dV/dt pin and the output slew rate by internal setting. And output current limit is fixed with a single resistor (R_LIMIT). Output voltage have a clamping voltage 13.5V with quickly response time 0.5μs when VCC voltage rising to over voltage clamp threshold 13.7V. APL3693 operation temperature from -40^oC to 125^oC. And turn off the output when temperature exceeds 150^oC.

The PMIC Features 7 Buck Converters, 6 LDOs, 2 LSs, and Flexible System Settings via I²C and MTP

Features
Charger

• 3.5V to 5.5V Operating Input Range
• Built-in UVLO, OVP for Main Input Voltage
• Built-in 7 High-Efficiency Step-Down Converters

- BUCK1: 0.45V ~ 1.275V, 3.75mV Step, 6A
- BUCK2: 1V ~ 3.4V, 10mV Step, 2A
- BUCK3: 0.45V ~ 1.275V, 3.75mV Step, 6A
- BUCK4: 0.6V ~ 1.54V, 5mV Step, 3A
- BUCK5: 0.45V ~ 1.275V, 3.75mV Step, 3A
- BUCK6: 1V ~ 3.4V, 10mV Step, 2A
- BUCK7: 1V ~ 3.4V, 10mV Step, 2A

• Configurable Dual Phase or Single Phase Regulator for BUCK1/BUCK3
• Configurable PWM Switching Frequency from 400kHz to 2.5MHz
• Programmable Automatic PFM/PWM Mode, Forced PWM Mode
• Adjustable Ramp-Up Time and Ramp-Down Time for BUCK1 ~ BUCK7
• Built-in RTC Dedicated LDO and 5 Low-Noise LDOs

- RTCLDO: 1.8V, 2.5V, 3.3V, 10mA
- LDO2: 1V ~ 3.4V, 50mV Step, 300mA
- LDO3: 1V ~ 3.4V, 50mV Step, 300mA
- LDO4: 0.6V ~ 1.23V, 10mV Step, 200mA
- LDO5: 1V ~ 3.4V, 50mV Step, 150mA
- LDO6: 0.6V ~ 1.23V, 10mV Step, 300mA

• Configurable LDO2/3 output 1.8V/3.3V by LDO2/3_SEL Pin
• Built-in Dual Sets of Logic Control Signal Outputs, Selectable at 1.8V or 3.3V
• Built-in Double Thermal Protection with Temperature Alarm and Thermal Shutdown
• Built-in Output Over Voltage Protection (OVP), Output Under Voltage Protection (UVP), Current Limit
• Built-in Interrupt Control and Reporting by /INT Pin
• Built-in PGOOD to Indicate the Power Status of All VRs
• I²C Bus and User Programmable MTP
• Programmable Power Sequence Control for All Channels via I²C
• Built-in Watchdog Timer, Programmable via I²C
• Supports Self-Refresh Mode via Off Mode Function
• Available in TQFN6x6-52B Package

General Description
The APW7720 is a Power Management IC (PMIC) designed to provide complete power management solution for Surveillance Cam, IP Cam and Video Conference-Call applications. It integrates a PWM power stage and well-designed control circuitry to minimize the need for external components, thereby simplifying layout in constrained PCB areas. This device features 7 adjustable output voltage buck converters, 6 adjustable output voltage low-noise LDOs, and 2 sets of built-in logic control signal outputs selectable at 1.8V or 3.3V, all of which can be configured via I²C. The APW7720 features protection functions against over current, output over/under voltage, VSYS over voltage and over temperature to prevent catastrophic failure. Fault events also cause a state change on the PGOOD and /INT output pins, which is helpful for interrupt control or debugging. Additionally, it integrates two Under-Voltage Lockout (UVLO) features to monitor the voltages of VSYS and VINLDO1, thereby preventing improper operation during power-up and power-down. An I²C interface is provided in this device for the system designer to customize settings or presets using Multi-Time Programmable (MTP) features, including power-up/
down sequence, output voltage, ramp-up/down time, power-good delay time, watchdog timer, PWM switching frequency, forced PWM mode or automatic PFM/PWM mode, output discharge mode or ramp-down mode, and latch off mode or auto-reboot mode. These customizable MTP settings give system designers the flexibility to optimize performance for various use cases, ensuring efficient and reliable operation. The APW7720 is halogen and lead free device, compliant with RoHS, available in TQFN6x6-52B package.