GS3660外置MOS升压IC datasheet

6 OUT 5 O Totem-pole output
GND 6 P IC ground
5
OSC 7
I
Capacitor and resistor connected for the frequency of oscillation
COMP 8 O Error amplifier compensation output
390
-
MAX. UNIT 0.3 V
5000 Ω
0
μA
-45 μA
-0.1 mA
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TYPICAL CHARACTERISTICS
Supply Current (mA)
Supply Voltage VS Supply Current
RO
--
MIN. 1.0
0.8
-
-
30 20
TYP. 1.2
1.0
0.1
0.1
-40 40 30
MAX. UNIT
-
V
-
V
0.2 V
0.2 V
-20 mA
-
mA
40 kΩ
Output Current Setting / Control section
PARAMETER
SYMBOL TEST CONDITIONS
FEATURES
˙Wide supply voltage operating range: 1.8 to 15V ˙Reference voltage precision: 2% ˙Low current consumption: Operation Mode 5.5mA
Standby-by Mode 1μA ˙High speed oscillator frequency: 1MHz max. ˙Programmable Soft Start function (SS) ˙Short Circuit Protection function(SCP) ˙Totem-pole output with adjustable on/off current
0.1V
PWM
1
36kΩ
+ Error Amp.
Comp. + + +
Output drive control circuit
0.5V
500KΩ
DTC 0.6V
0.22V
8
Soft start & SCP circuit
6
2
4
5 30kΩ
MARK VIEW
1 2
GS3660
3 4
PIN DESCRIPTION
Error Amplifier section
PARAMETER
SYMBOL TEST CONDITIONS
Input threshold voltage VT change with voltage VT change with temperature
VFB ΔVFB / ΔV ΔVFB / ΔT
SYMBOL TEST CONDITIONS
VOH1 VOH2 VOL1 VOL2 IOSOURCE IOSINK
RB=390Ω, IO=-15mA RB=750Ω, IO=-10mA, VCC= 1.8V RB=390Ω, IO=15mA RB=750Ω, IO=10mA, VCC= 1.8V RB=390Ω, Vo=0.9V RB=390Ω, Vo=0.3V
GS3660
BOOST CONVERT CONTROL IC
GENERAL DESCRIPTION
The GS3660B is a boost topology switching regulator control IC for battery-used applications field. The GS3660B includes a totem-pole single output stage for driving NPN transistor or N-MOS, high precision reference (0.5V) for comparing output voltage with feedback amplifier, an internal dead-time control for controlling the minimum duty cycle, programmable soft start with short circuit protection function and logic level control for operating mode or standby mode.
12
Ta=25℃
10
RB=390Ω
8
6
4
2
0
0
4
8
12
16
20
Supply Voltage (V)
Figure 1
Ambient Temperature VS
Input Threshold Voltage Variation Ratio
30
VCC=2V
10
5
0
-5
-10
-15
-25
0
25
50
75
100
300
200
100
0
0
20
40
60
80
100
Low Level Output Current Iout (mA)
Figure 5
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GS3660
Input Threshold Voltage Vt (V)
Supply Voltage VS
Input Threshold Voltage
Pin voltage
VBR
RB=390Ω
Output current setting
RB
-
resistance
Input off condition
IOFF
--
Input on condition
ION
--
Pin current range
IBR
--
MIN. 0.15
300
-20 -
-1.8
TYP. 0.22
1.2
Ta=25℃ 1.0
0.8
0.6
0.4
0.2
0
0
4
8
12
16
20
Supply Voltage (V)
Figure 2
High Level Output Voltage Vout (V)
High Level Output
1.2
VCC=2V
1.0
RB=390Ω
Ta=25℃
0.8
0.6
0.4
0.2
0 0 -10
PARAMETER
SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Low threshold voltage
VLOW
--
-
-
0.9
V
Upper threshold voltage
VUPPER
--
1.1 1.3 1.5 V
Soft Start section (S.S.) PARAMETER
PARAMETER
SYMBOL TEST CONDITIONS
Input source current
ISCP
VSCP= 0V
S.C.P. threshold voltage
VSCP
--
MIN. -1.5 0.7
TYP. -1.0 0.8
MAX. UNIT -0.7 μA 0.9 V
Oscillator section PARAMETER
Name No. I/O
Description
FB 1 I Error amplifier inverting input pin
8
SCP 2
I
Connected a capacitor Soft start and SCP function pin
7
VCC 3
EN/OFF 4
P IC power supply I Output current setting and control pin
- V/V
- MHz
V
0.2
-24 μA
-
μA
Output section PARAMETER
Output high voltage
Output high voltage
Output saturation voltage
Output saturation voltage
Output source current Output sink current Internal pull-down resistor
Ambient Temperature Ta (℃)
Figure 3
Input Threshold Voltage Variation △V/V(%)
Low Level Output Voltage Vout (V)
Low Level Output
600
VCC=2V
500
RB=390Ω
Ta=25℃
400
Δf / ΔV
VCC=2V to 15V
-
2
10
%
Δf / ΔT
Ta = 0℃to 85℃
-
5
-
%
Idle Period Adjustment section
PARAMETER
SYMBOL TEST CONDITIONS MIN.
Maximum duty cycle
TDUTY
RT=3.0kΩ, CT=270pF, 75
-20 -30
-40 -50
High Level Output Current Iout (mA)
VCOMP=450mV VCC=2V to 15V Ta = -10℃to 85℃
Input bias current
wk.baidu.com
IB
--
Voltage Gain
Av
--
Frequency bandwidth
BW
Av=0 dB
Output voltage Positive
VPOS
--
Swing
Negative
VNEG
(for NPN transistors or n-channel MOSFET) ˙Logic level control stand-by mode function ˙Package: TS SOP8
TSSOP 8
TYPICAL APPLICATION
˙Digital Camera ˙PDA ˙Portable Equipment
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GS3660
DC ELECTRICAL CHARACTERISTICS(Ta=25℃,VCC=+2V, unless otherwise noted)
Under Voltage Lock-Out section (U.V.L.O.)
Input source current Soft start threshold voltage
SYMBOL ISS VSST
TEST CONDITIONS VSCP= 0V --
MIN. -1.5 0.8
TYP. MAX. UNIT -1.0 -0.7 μA 0.9 1.0 V
Short Circuit Protection section (S.C.P.)
Oscillation frequency Frequency change with voltage Frequency change with temperature
SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
f
RT=3.0KΩ,CT=270pF 400 500 600 KHz
IAVE
RB=390Ω,VCC=0~20V -
TYP. -
5.0
MAX. UNIT
1
μA
10 mA
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GS3660
DC ELECTRICAL CHARACTERISTICS (Cont.)
--
Output source current Output sink current
ISOURCE ISINK
VCOMP=450mV
MIN. 495
-1.0 0.78 24
TYP. 500
5 1 -0.2 100 6 0.87 0.05 -40 40
MAX. UNIT
505 mV
20 mV
-
%
1.0 μA
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GS3660
FUNCTIONAL BLOCK DIAGRAM
3
7
Reference voltage supply
1.25V
0.8V 0.1V
Sawtooth wave oscillator
VFB=0.8V
TYP. -
MAX. UNIT
85
%
Total device section PARAMETER
Stand-by current Average supply current
SYMBOL TEST CONDITIONS MIN.
ISTANDBY
Pin4 is open or VCC
-