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S-8337ACBA-T8T1G

器件型号:S-8337ACBA-T8T1G
器件类别:电源/电源管理    电源电路   
厂商名称:ABLIC
标准:
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器件描述

IC REG CTRLR BOOST 8TSSOP

参数
参数名称属性值
是否无铅不含铅
是否Rohs认证符合
厂商名称ABLIC
零件包装代码SOIC
包装说明TSSOP,
针数8
Reach Compliance Codecompliant
ECCN代码EAR99
模拟集成电路 - 其他类型SWITCHING CONTROLLER
控制模式VOLTAGE-MODE
控制技术PULSE WIDTH MODULATION
最大输入电压6 V
最小输入电压1.8 V
标称输入电压3.3 V
JESD-30 代码R-PDSO-G8
JESD-609代码e6
长度4.4 mm
功能数量1
端子数量8
最高工作温度85 °C
最低工作温度-40 °C
最大输出电流0.16 A
封装主体材料PLASTIC/EPOXY
封装代码TSSOP
封装形状RECTANGULAR
封装形式SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度)260
认证状态Not Qualified
座面最大高度1.1 mm
表面贴装YES
切换器配置SINGLE
最大切换频率1246.3 kHz
技术CMOS
温度等级INDUSTRIAL
端子面层Tin/Bismuth (Sn/Bi)
端子形式GULL WING
端子节距0.65 mm
端子位置DUAL
处于峰值回流温度下的最长时间10
宽度3 mm

文档预览

S-8337/8338 Series
www.ablic.com
www.ablicinc.com
© ABLIC Inc., 2003-2010
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL
SWITCHING REGULATOR CONTROLLER
Rev.4.0
_02
The S-8337/8338 Series is a CMOS step-up switching regulator which mainly consists of a reference voltage
circuit, an oscillator, an error amplifier, a PWM controller, an under voltage lockout circuit (UVLO), and a timer
latch short-circuit protection circuit. Because its minimum operating voltage is as low as 1.8 V, this switching
regulator is ideal for the power supply of an LCD or for portable systems that operate on a low voltage. The
internal oscillation frequency can be set up to 1.133 MHz, via the resistor connected to the ROSC pin.
With the S-8337 Series, the maximum duty ratio of PWM control can be controlled by the resistor connected to
the RDuty pin. With the S-8338 Series, the maximum duty ratio is fixed (to 88%). The phase compensation
and gain value can be adjusted according to the values of the resistor and capacitor connected to the CC pin.
Therefore, the operation stability and transient response can be correctly set for each application. The
reference voltage accuracy is as high as 1.0 V1.5%, and any voltage can be output by using an external
output voltage setting resistor.
In addition, the delay time of the short-circuit protection circuit can be set by using the capacitor connected to
the CSP pin. If the maximum duty condition continues because of short-circuiting, the capacitor externally
connected to the CSP pin is charged, and oscillation stops after a specific time. This condition is cleared by
re-application of power or by setting the switching regulator (S-8338 Series) to the shutdown status. A ceramic
capacitor or a tantalum capacitor is used as the output capacitor, depending on the setting. This controller IC
allows various settings and selections and employs a small package, making it very easy to use.
Features
Low voltage operation:
Oscillation frequency:
Maximum duty:
1.8 V to 6.0 V
286 kHz to 1.133 MHz (selectable by external resistor)
47 to 88.5% (selectable by external resistor) (S-8337 Series)
Fixed to 88% typ. (S-8338 Series)
Reference voltage:
1.0 V1.5%
UVLO (under-voltage lockout) function:
Detection voltage can be selected from between 1.5 V and 2.3 V in 0.1 V steps.
Hysteresis width can be selected from between 0.1 V and 0.3 V in 0.1 V steps.
Timer latch short-circuit protection circuit:
Delay time can be set using an external capacitor.
Soft-start time can be selected in three steps, 10 ms, 15 ms, and 20 ms.
Soft-start function:
Phase compensation external setting:
Adjustable by connecting resistor and capacitor in series to GND.
Shutdown function:
S-8338 Series, shutdown current consumption: 1.0
A
max.
Lead-free, Sn 100%, halogen-free
*1
*1.
Refer to “
Product Name Structure”
for details.
Applications
Power supplies for LCDs and CCDs
Power supplies for portable equipment
Packages
8-Pin SON(A)
8-Pin TSSOP
1
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.0
_02
S-8337/8338 Series
Block Diagram
SD
L
RDuty (S-8337) or
ON/OFF (S-8338)
V
OUT
ROSC
VIN
M1
C
IN
EXT
UVLO
Oscillator
Maximum duty circuit
CFB RFB1
C
L
FB
RFB2
PWM
comparator
Timer latch
short-circuit
protection circuit
Error amplifier
Reference voltage
(1.0 V) soft-start
circuit
VSS
CSP
CC
RZ CZ
Figure 1 Block Diagram
2
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.0
_02
S-8337/8338 Series
Product Name Structure
1. Product name
(1) 8-Pin SON(A)
S-833 x
A x
x
x
-
P8T1
G
Environmental code
G: Lead-free (for details, please contact our sales office)
Package name (abbreviation) and packing specification
P8T1: 8-Pin SON(A), tape
Soft-start time setting
A: 10 ms
B: 15 ms
C: 20 ms
UVLO setting
A: 2.3 V
B: 2.2 V
C: 2.1 V
D: 2.0 V
E: 1.9 V
F: 1.8 V
G: 1.7 V
H: 1.6 V
I: 1.5 V
UVLO hysteresis setting
A: 0.1 V
B: 0.2 V
C: 0.3 V
Pin setting
7: With MaxDuty setting function
8: With Shutdown function
3
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.0
_02
S-8337/8338 Series
(2) 8-Pin TSSOP
S-833 x
A x
x
x
-
T8T1
x
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
Package name (abbreviation) and packing specification
T8T1: 8-Pin TSSOP, tape
Soft-start time setting
A: 10 ms
B: 15 ms
C: 20 ms
UVLO setting
A: 2.3 V
B: 2.2 V
C: 2.1 V
D: 2.0 V
E: 1.9 V
F: 1.8 V
G: 1.7 V
H: 1.6 V
I: 1.5 V
UVLO hysteresis setting
A: 0.1 V
B: 0.2 V
C: 0.3 V
Pin setting
7: With MaxDuty setting function
8: With Shutdown function
2. Packages
Package Name
8-Pin SON(A)
8-Pin TSSOP
Environmental code = G
Environmental code = U
Drawing Code
Tape
PN008-A-C-SD
FT008-E-C-SD
FT008-E-C-SD
Package
PN008-A-P-SD
FT008-A-P-SD
FT008-A-P-SD
Reel
PN008-A-R-SD
FT008-E-R-SD
FT008-E-R-S1
4
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.0
_02
S-8337/8338 Series
Pin Configurations
Table 1
Pin No.
8-Pin SON(A)
Top view
1
2
3
4
8
7
6
5
Symbol
CC
FB
CSP
VIN
EXT
VSS
ROSC
RDuty
ON/OFF
Description
Error amplifier circuit output phase
compensation pin
Output voltage feedback pin
Short-circuit protection delay time
setting pin
Power supply input pin
External transistor connection pin
GND pin
Oscillation frequency setting resistor
connection pin
Maximum duty setting resistor
connection pin (S-8337 Series)
Shutdown pin (S-8338 Series)
1
2
3
4
5
6
7
Figure 2
8
Table 2
Pin No.
1
8
7
6
5
8-Pin TSSOP
Top view
1
2
3
4
Symbol
CC
FB
CSP
VIN
EXT
VSS
ROSC
RDuty
ON/OFF
Description
Error amplifier circuit output phase
compensation pin
Output voltage feedback pin
Short-circuit protection delay time
setting pin
Power supply input pin
External transistor connection pin
GND pin
Oscillation frequency setting resistor
connection pin
Maximum duty setting resistor
connection pin (S-8337 Series)
Shutdown pin (S-8338 Series)
2
3
4
5
6
7
Figure 3
8
5

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