Ultra-low Quiescent Current: 0.8μA(VIN=12V)
Shutdown Current: 0.01uA
Input Range: 2.5V-20V
Output Range: 1.8V-5V (0.1V interval)
High Precision: ±2%
Maximum Output Current: 500mA
Enabling Control
Output Discharge
Output Short Circuit Protection
Thermal Shutdown
Low quiescent current: 5μA
Output voltage range: 2.5V~5.6V (step 0.1V), 12V
High accuracy: ±2%
Dropout voltage: 900mV @VOUT=3.3V / IOUT=150mA
Maximum output current: 150mA
Input voltage range: maximum 36V
Output short circuit protection
Thermal shutdown
Overcurrent protection
Input Voltage Range：1.4V-5.5V
Output Voltage Range：0.9V-3.3V，step 0.1V
Output current：500mA
Quiescent current：50μA(Typ)
Shutdown current: < 1μA
Dropout voltage: 120mV@IOUT=300mA，VOUT=3.3V
PSRR: 78db@1kHz，VOUT=1.8V
Low Output Voltage Noise: 29.6uV@VOUT=1.8V
Output voltage accuracy: 1%
Short circuit protection
Ultra-low quiescent current: 2.5μA
High accuracy：±2%
Low dropout voltage：50mV @ IOUT = 100mA @ VOUT =3.3V
Maximum output current：1A
Input Voltage Range：Max 12V
Maximum Output Current：500mA
Low dropout voltage：80mV @ IOUT = 100mA, VOUT =5V
Maximum output current：300mA
Input voltage range：Max 20V
Enabling control
Ultra-low quiescent current: 1.2μA
High accurate：±2%
Low dropout voltage：200mV@IOUT=100mA, VOUT =3.3V
Input Voltage Range：Max 36V
Operating voltage (range): 1.5~6V
Quiescent current: 0.6μA
Output current: 0.3A
Output voltage accuracy deviation: ±2%
Output voltage: 1.8/2.8/3.0/3.3/3.6V
With output short circuit protection and overheat protection
Ultra-low quiescent current：600nA
Standby current：≤10nA
High precision：±2%
Low dropout voltage：60mV @ IOUT = 100mA @ VOUT = 3.3V
Maximum output current：500mA
Input voltage range：Max 6.0V
Enable control
Foldback current limit protection
Low static current: 6μA
Differential pressure：500mV @ IOUT = 100mA @ VOUT =5V
Input voltage range: Max. 35V
Internal Thermal Overload Protection
Internal Short-Circuit Limiting
Recommend Capacitor: 1μF~10μF
CV/CC adjustment error ±%5
No need for optocoupler and 431
Built-in line compensation for more accurate CC adjustment
Built-in Leading Edge Blanking (LEB)
Cycle-by-cycle current limit
Output overcurrent protection
OTP protection
VCC undervoltage and overvoltage protection
Maximum power 12W
Meets Grade 6 energy efficiency standards
Standby power consumption less than 75mW
Wide input AC range: 90Vac~265Vac
Output power: 3~5W
Up to 70KHz operating frequency
Excellent system ESD performance
Adjustable cable compensation(3%~8%)
Adjustable line compensation
High Efficiency Quasi Resonance Mode
Over temperature protection
Output over-voltage protection
CV/CC adjustment error ±5%
Control circuits without optical coupling and all secondary CV/CC component
Quasi resonant working mode
Built-in line compensation for more precise CC regulation
Lead Edge Blanking (LEB)
Periodic Current Limit
VCC undervoltage locking (UVLO) with hysteresis
Built-in short circuit protection and output overvoltage protection
Built-in over-temperature protection
Output power up to 15W
Output power up to 30 W
Output power up to 30W
Built-in 1200V MOSFET
Built-in high-voltage starting circuit
Built-in line voltage compensation and slope compensation
Integrated frequency expansion technology
Frequency tripling function to improve magnetic interference (Available in CN12039B/D)
Integrated input undervoltage protection (Available in CN12039C/D)
PWM/PFM/Burst hybrid control mode
No-load power consumption <50mW @230 VAC
Complete protection functions (OCP, OLP,UVLO, VDD OVP, OTP)
Built-in 1000V MOSFET
Frequency tripling function to improve magnetic interference (Available in CN1102AD/F)
Integrated input undervoltage protection (Available in CN1102AE/F)
Integrated short-circuit protection for the primary main winding of the transformer
Built-in high-voltage startup circuit
Integrated frequency extension technology
PWM/PFM/PSM hybrid control mode
No-load power consumption<50mW@230VAC
Complete protection functions (OCP, OLP, UVLO, VDD OVP, OTP)
5.5V to 38V Wide Input Operating Range
High Efficiency Up to 96%
50μA Low Quiescent Current
800mV ±2% Feedback Reference Voltage
600kHz Fixed Operation Frequency
Power Save mode at light load
Capable of output 1A continuous current
Cycle-by Cycle Current Limit
Hic-cup Mode overload and output short protections
1.7ms Soft-Start Time
5.5 ~ 24V Wide Input Operating Range
30V input overvoltage protection
Capable of output 0.8A continuous current
High Efficiency Up to 93%
7μA Low Quiescent Current
5V ±2% fixed output voltage
Light load PFM energy saving mode
Frequency foldback function for 99% maximum duty cycle
Internal slope compensation to simplify external compensation circuitry
Cycle-by-cycle peak and valley current limits for more reliable overcurrent protection，
1ms internal soft-start to limit input inrush current
3.8 V - 24 V wide input voltage range
30 V input overvoltage protection
0.8 A continuous output current
93% efficiency
Low quiescent current of 15 μA
800 mV ±2% feedback reference voltage
600 kHz fixed switching frequency
Internal ramp compensation to simplify external compensation circuitry
Cycle-by-cycle peak and valley current limiting,more reliable overcurrent protection
Hiccup mode overcurrent protection and short circuit protection
FB short-circuit protection, which can effectively protect the back-end circuits
1 ms internal soft start to limit input inrush current
4.5V to 18V Wide Input Operating Range
19V Input Over Voltage Protection
Capable of Delivering 2A
Efficiency up to 92%
No load Iq 100uA
600mV ±2% Feedback reference voltage
800kHz fixed frequency
Adaptive COT Control
High Efficiency PFM mode at light load
Hiccup mode over current protection and short circuit protection
Cycle-by-cycle peak and valley current limiting
1ms internal soft start
Thermal Shutdown and UVLO
2.4V to 6V Wide Input Operating Range
0.17mA Low Quiescent Current
0.05uA Shutdown Current
Maximum Output Voltage 24V
Maximum Output Current 3.5A
High Efficiency Up to 90%
Built-in power MOS, no external rectifier required
600mV ±3% Feedback Reference Voltage
1MHz Fixed Operation Frequency
PFM mode at light load
0.6ms soft start to limit output voltage overshoot at startup
Output Overvoltage Protection
2.6V to 6.0V operating input range
Up to 1.4A output current
Up to 97% peak efficiency
Internal soft-start
1.5MHz switching frequency
Input under voltage lockout
Input over voltage protection
Thermal protection
Available in SOT23-5
Up to 95% Efficiency
200mV ±3% Feedback Reference Voltage
Maximum 25V output
Power Save PFM Mode at Light Load
Soft-start Limits Output Overshoot and Inrush Current
3.5A Cycle by Cycle Current Limit Protection
OVP Protection
Push-pull topology
Highly integrated, simple peripheral
Built-in 24V/0.3Ω LDMOS
0.8A current clamp limiting, low short-circuit power consumption while improving capacitive load capability.
2.8-9V input voltage range
External enable control for low standby power consumption and sleep function
Adjustable switching frequency: 200K-1.8M with optional small transformer size.
Continuous short-circuit protection, over-temperature protection, under-voltage protection, self-recovery
Ambient temperature： -40°C ~ +105°C
Highly integrated, simple periphery
Maximum output power: 3W
4-24V Input Voltage Range
Adjustable switching frequency: 200KHz-2MHz, suitable for small transformer size
Adjustable duty cycle: 50% maximum
Over temperature protection and over current protection
3-Channel PMU: Buck, Boost, Super Capacitor Charger
Buck Wide Input from 5V to 38V with 42V Standoff
Fixed Output Buck: 3.3V/800mA
Fixed Output Boost: 12V/450mA at 2.5V Input
Linear Charger for Super Capacitor with 60mA CC Current
Up to 91% efficiency
Enable pin to set Power Down Threshold
External signal controls the charger to enable
Hic-cup Mode OCP protections
3.3V/800mA Output Capability Buck
12V/450mA Output Capability Boost at 2.5V Input
Fixed Buck Output Voltage and Adjustable Boost Output Voltage
1% Accuracy CV Voltage for Charger
Auto-alternated Boost Mode and Charger Mode
In 1 PMU, 2-Bucks, 1-Boost, 1-SuperCap Charger
Fixed output buck converter: 3.3V/500mA
Adjustable output buck converter: 1V-5V
Boost converter: 12V/300mA
Super capacitor charger: 2.5V/60mA
High Efficiency Pulse Skip Mode at Light Load
Power Down Detection and Indication
Hiccup Mode OCP Protections
Applied intype A and AC leakage detection
High input sensitivity (4.95mV typical)
Low quiescent current of 190uA
Wide operating voltage range (3V~5.5V)
Wide AC input voltage range: 50V~380V(50/60Hz)
>20ms output pulse width can drive SCR
Consistent leakage detection threshold
Delay time can be adjusted
Excellent EMC protection
Wide operating temperature range (Ta=-40~+105°C)
Applied in AC type leakage
Low power consumption, quiescent current <1uA
High detection accuracy
Effective power line noise filtering
Integrated rectifier diode
Integrated voltage regulator diode
Few peripheral components
Wide power range: 4.4V to 40V
4.5A overcurrent protection
Low MOSFET on-resistance: Rhs = 0.45Ω, Rls = 0.25Ω
Forward, reverse, coast or brake output modes
Suitable for a wide range of MCU control logic
Input logic hysteresis
Wide input voltage range: 1.8V to 16V
Low standby current: 0.7uA
Peak current limit protection: 2.6A
Low MOSFET on-resistance: Rhs =0.45Ω, Rls =0.25Ω
Applicable to a wide range of MCU control logics
Wide Power Range: 2.7V to 6V
Low MOSFET On Resistance: Rhs=0.3Ω, Rls=0.15Ω
Forward, Reverse, Coast, or Brake Output Modes
Suitable for wide range MCU control logic
Wide Power Range: 2.5V to 6V
Peak current limiting protection:2.5A
OCP: 2.5A
Wide Power Range: 4.5V to 24V
Low MOSFET On Resistance: Rhs=0.3Ω, Rls=0.3Ω
Wide Power Range: 4V to 24V
Peak current limiting protection:3.5A
Low MOSFET On Resistance: Rhs=0.4Ω, Rls=0.2Ω
Recommended Supply Voltage Range: 3.5 ~40V
Peak current limiting protection:800mA
Ambient Temperature Range: -40 ~+105°C
Compatible with 3~5V MCU
Input Signal Anti-Noise Processing
Operating voltage: 6V to 28V
Large signal bandwidth：> 20MHz
3rd harmonic suppression：40dBc @ 10M / 10Vpp / 50Ωload 50dBc @ 5M / 10Vpp / 50Ωload 60dBc @ 2M / 10Vpp / 50Ωload 76dBc @ 500K / 10Vpp / 50Ωload
2nd harmonic suppression：55dBc @ 10M / 10Vpp / 50Ωload 60dBc @ 5M / 10Vpp / 50Ωload 70dBc @ 2M / 10Vpp / 50Ωload 80dBc @ 500K / 10 Vpp /50Ωload
Operating current externally set, digitally controllable
Slew rate：500 V/μs
Maximum differential output：2x operating voltage -6V@50Ωload
TTL / CMOS compatible
Temperature range -40°C to +105°C
Low power consumption design, 6uA current at typical condition.
The LCD driver chip is integrated with buffer amplifiers.
supports both register read and display RAM functions.
incorporates an internal OSC circuit and features a blinking function.
Integrated Power-on Reset Circuit.
No external component required
includes an I2C interface.
Compatible with TTL/CMOS.
High EMC immunity.
Fixed 1/4 duty mode, Up to 192 dots
Low power consumption design, 6uA current at typical condition
Built-in OSC Circuit
Internal LCD Contrast control Circuit
Integrated Power-on Reset Circuit
Interface: 2 line serial l2C
Compatible with TTL/CMOS
High EMC immunity
Operating voltage: 2.4V~5.5V
Built-in 32kHz RC oscillator
External 32.768kHz crystal or 256kHz frequency source input
Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications
Internal time base frequency sources
Two selectable buzzer frequencies (2kHz/4kHz)
Built-in time base generator and WDT
Time base or WDT overflow output
8 kinds of time base/WDT clock sources
32×4 LCD driver
Built-in 32×4 bit display RAM
R/W address auto increment
VLCD pin for adjusting LCD operating voltage
Adjustable 1/8 Duty,1/6 Duty,1/4 Duty.
Maximum 39*8 = 312 Bits, with built-in Buffer AMP
Low power consumption design, 5uA current at typical condition
Interface: 2 wire serial interfaces
Integrated reset and oscillator circuits
Adjustable 1/8 Duty, 1/4 Duty
Maximum 35*8 = 280 Bits, with built-in Buffer AMP
The display mode options include dynamic 1/2and1/3bias voltages, as well as a 1/4duty cycle mode, supporting a maximum of 144 segments.
includes an I2C interface
Fixed 1/4 duty mode, Up to 184 dots
Fixed 1/4 duty mode, 1/3bias voltages supporting a maximum of 160 segments
Incorporates an internal OSC Circuit
Includes an I2C interface
Fixed 1/4 Bias, 1/8 Duty.
35*8 = 280 bits, with built-in buffer amplifier.
Low power consumption design, 5uA current at typical condition.
Integrated reset and oscillator circuits.
CPU maximum frequency can reach 200MHz
Frequency dynamic switching, effectively reducing power consumption
Built-in encryption and decryption engine
Support JATG online debugging
Support global maskable interrupts
Built-in 1.5M SRAM
Support SPI, support CPU BOOT from SPI port
Support UART and debugging functions
Support general GPIO function
Support 32-bit counter (timer) function
Ethernet chip PHY, equipped with MDIO and RMII ports
Support DMA function
Equipped with hardware watchdog
One-time write eFuse function
State Grid dual-mode (wired-wireless) communication protocol
The RS485 is a +5V, half-duplex, ±15KV ESD protected RS485/RS422 transceiver circuit. The circuit contains single channel driver and single channel receiver internally.
The RS485 is a half-duplex type with drive enable (DE) and receive enable (RE) pins. When in the off state, the drive and receive outputs are high resistance.
The RS485 has a fail-safe circuit to ensure correct receiver output when the receiver input is open or shorted.
The RS485 receiver input impedance is 1/8 unit load, allowing up to 256 transceivers to be hooked up to the bus.
Chip Features
Typical Applications
Ordering Information
025-58270802
021-61090382
CN/EN
Typical Applications
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