SPV1040

Synchronous Step-Up Converter

The SPV1040 is a synchronous step-up converter from STMicroelectronics. View the full SPV1040 datasheet below including key specifications, electrical characteristics.

Manufacturer

STMicroelectronics

Key Specifications

Parameter	Value
Fault Protection	Over Current, Over Temperature
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package	8-TSSOP
Input Voltage (Max)	5.5V

Overview

Part: SPV1040 — STMicroelectronics

Type: High efficiency solar battery charger with embedded MPPT

Description: Low power, low voltage, monolithic step-up converter with 0.3 V to 5.5 V input, capable of maximizing energy from solar cells with an embedded MPPT algorithm, up to 1.8 A maximum inductor current, and 95% efficiency.

Operating Conditions:

Supply voltage: 0.3 V to 5.5 V
Operating temperature: -40 to 125 °C
Output voltage range: 2 to 5.2 V

Absolute Maximum Ratings:

Max supply voltage (VOUT): 5.5 V
Max junction operating temperature: 125 °C
Max storage temperature: 150 °C

Key Specs:

N-channel power switch ON resistance: 120 mΩ
P-channel synchronous rectifier ON resistance: 140 mΩ
PWM signal frequency: 100 kHz (Typ.)
Quiescent current: 60 μA (Typ.)
Shutdown current: 0.7 μA (Typ.)
Maximum inductor current peak: 1.8 A (Max.)
Maximum output power: 3 W
Overtemperature threshold for turn OFF: 155 °C (Typ.)

Features:

0.3 V to 5.5 V operating input voltage
140 mΩ internal synchronous rectifier
120 mΩ internal power active switch
100 kHz fixed PWM frequency
Duty cycle controlled by MPPT algorithm
Output voltage regulation, overcurrent and overtemperature protection
Input source reverse polarity protection
Built-in soft-start
Up to 95% efficiency

Applications:

Smart phones and GPS systems
Wireless headsets
Small appliances, sensors
Portable media players
Digital still cameras
Toys and portable healthcare

Package:

TSSOP8 (3x4.4 mm)

Features

0.3 V to 5.5 V operating input voltage
140 mΩ internal synchronous rectifier
120 mΩ internal power active switch
100 kHz fixed PWM frequency
Duty cycle controlled by MPPT algorithm
Output voltage regulation, overcurrent and overtemperature protection
Input source reverse polarity protection
Built-in soft-start
Up to 95% efficiency
TSSOP8 package 3x4.4 mm

Applications

Smart phones and GPS systems
Wireless headsets
Small appliances, sensors
Portable media players
Digital still cameras
Toys and portable healthcare

TSSOP8

Pin Configuration

Table 2: Pin description

Pin	Name	Type	Description
1	MPP-SET	I	Non-inverting input to sense the PV cell voltage. It cannot be left floating.
2	GND	Ground	Power ground reference.
8	XSHUT	I	Shutdown input pin: XSHUT = low, the device in power off mode. XSHUT = high, the device is enabled for operating mode. This pin cannot be left floating.
3	LX	I	Booster inductor connection.
7	ICTRL_PLUS	I	Non-inverting input of constant current control loop. It cannot be left floating.
6	ICTRL_MINUS	I	Inverting input of constant current control loop. It cannot be left floating.
5	VCTRL	I	Inverting input of constant current control loop. It cannot be left floating.
4	VOUT	O	Booster output voltage.

Figure 3: Pin connection top view

Table 2: Pin description

Electrical Characteristics

VMPP-SET = 0.5 V, VCTRL = Ictrl+ = Ictrl- = GND, XSHUT = 0.5 V, TJ = -40 °C to 125 °C, unless otherwise specified.

Table 5: Electrical characteristics

Symbol	Parameter	Test conditions	Min.	Typ.	Max.	Unit
Input source section	Input source section	Input source section	Input source section	Input source section	Input source section	Input source section
V MPP-SET	Low boost voltage threshold	V OUT = 3.3 V	0.4	0.45	0.50	V
I q	Quiescent current	I LOAD = 0 mA, V CTRL = 2 V, V OUT = 3.3 V		60	80
I SD	Shutdown current	V OUT = 3.3 V, V CTRL = 2 V, I LOAD = 0 mA, XSHUT = GND		0.7	5	μA
I rev	Reverse input source current	V MPP-SET = -4 V, V OUT = 1.5 V		1	5
V UVLO	Undervoltage lockout threshold for turn ON @V OUT = 3.3 V	V MPP-SET increasing		0.27	0.34
V UVLO	Undervoltage lockout threshold for turn OFF @V OUT = 3.3 V	V MPP-SET decreasing	0.14	0.24		V
Power section	Power section	Power section	Power section	Power section	Power section	Power section
R DS(on) -N	N-channel power switch ON resistance				120	mΩ
R DS(on) -P	P-channel synchronous rectifier ON resistance	V CTRL = 2 V			140
Control section	Control section	Control section	Control section	Control section	Control section	Control section
V MPPT-THR	MPPT-mode threshold	V OUT increasing, V MPP-SET = 1.5 V	1.7	1.8	2	V
V OUT	Output voltage range	V MPP-SET ≥ 1.5 V	2		5.2 (1)	V
P OUT (2)	Maximum output power	V MPP-SET ≥ 1.5 V			3	W
I LX	Maximum inductor current peak		1.5	1.65	1.8	A
F PWM	PWMsignal frequency		70	100	130	kHz
V REF	Internal V CTRL reference voltage	V OUT ≥ 1.8 V, V CTRL increasing	1.2	1.25	1.3	V
V ICTRL	Sensing current offset	I CTRL+ - I CTRL- decreasing	40	50	60	mV
	XSHUT logic low	XSHUT increasing		0.27	0.34
XSHUT	XSHUT logic High	XSHUT decreasing	0.14	0.24		V

Table 5: Electrical characteristics

Thermal shutdown

Package Information

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK ® packages, depending on their level of environmental compliance. ECOPACK ® specifications, grade definitions and product status are available at: www.st.com . ECOPACK ® is an ST trademark.

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
SPV1040T	STMicroelectronics	8-TSSOP (0.173", 4.40mm Width)
SPV1040TTR	STMicroelectronics	—

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